pihelp: aes.c annotate

annotate aes.c @ 3:ca3a006e292c

add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/

author	Matt Johnston <matt@ucc.asn.au>
date	Tue, 04 Jun 2013 22:11:54 +0800
parents
children	87c8d0a11906

rev	line source
3 ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 // advanced encryption standard
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 // Original author: Karl Malbrain, [email protected]
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 // Ported to Atmel AVR by: Jiri Pittner, [email protected]
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 //
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 /*
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 This work, including the source code, documentation
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 and related data, is placed into the public domain.
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9 The original author is Karl Malbrain.
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11 THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 OF ANY KIND, NOT EVEN THE IMPLIED WARRANTY OF
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 MERCHANTABILITY. THE AUTHOR OF THIS SOFTWARE,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 ASSUMES _NO_ RESPONSIBILITY FOR ANY CONSEQUENCE
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 RESULTING FROM THE USE, MODIFICATION, OR
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 REDISTRIBUTION OF THIS SOFTWARE.
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 */
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 #include <stdlib.h>
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 #include <string.h>
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 #include <avr/pgmspace.h> //tables have to reside in flash memory
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 // AES only supports Nb=4
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 #define Nb 4 // number of columns in the state & expanded key
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 #define Nk 4 // number of columns in a key
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 #define Nr 10 // number of rounds in encryption
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 #define Sbox(i) (pgm_read_byte(&P_Sbox[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 const unsigned char P_Sbox[256] __attribute__ ((__progmem__)) = { // forward s-box
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	49
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	50 #define InvSbox(i) (pgm_read_byte(&P_InvSbox[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	51 const unsigned char P_InvSbox[256] __attribute__ ((__progmem__)) = { // inverse s-box
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	52 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	53 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	54 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	55 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	56 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	57 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	58 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	59 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	60 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	61 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	62 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	63 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	64 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	65 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	66 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	67 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	68
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	69 // combined Xtimes2[Sbox[]]
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	70 #define Xtime2Sbox(i) (pgm_read_byte(&P_Xtime2Sbox[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	71 const unsigned char P_Xtime2Sbox[256] __attribute__ ((__progmem__)) = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	72 0xc6, 0xf8, 0xee, 0xf6, 0xff, 0xd6, 0xde, 0x91, 0x60, 0x02, 0xce, 0x56, 0xe7, 0xb5, 0x4d, 0xec,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	73 0x8f, 0x1f, 0x89, 0xfa, 0xef, 0xb2, 0x8e, 0xfb, 0x41, 0xb3, 0x5f, 0x45, 0x23, 0x53, 0xe4, 0x9b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	74 0x75, 0xe1, 0x3d, 0x4c, 0x6c, 0x7e, 0xf5, 0x83, 0x68, 0x51, 0xd1, 0xf9, 0xe2, 0xab, 0x62, 0x2a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	75 0x08, 0x95, 0x46, 0x9d, 0x30, 0x37, 0x0a, 0x2f, 0x0e, 0x24, 0x1b, 0xdf, 0xcd, 0x4e, 0x7f, 0xea,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	76 0x12, 0x1d, 0x58, 0x34, 0x36, 0xdc, 0xb4, 0x5b, 0xa4, 0x76, 0xb7, 0x7d, 0x52, 0xdd, 0x5e, 0x13,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	77 0xa6, 0xb9, 0x00, 0xc1, 0x40, 0xe3, 0x79, 0xb6, 0xd4, 0x8d, 0x67, 0x72, 0x94, 0x98, 0xb0, 0x85,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	78 0xbb, 0xc5, 0x4f, 0xed, 0x86, 0x9a, 0x66, 0x11, 0x8a, 0xe9, 0x04, 0xfe, 0xa0, 0x78, 0x25, 0x4b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	79 0xa2, 0x5d, 0x80, 0x05, 0x3f, 0x21, 0x70, 0xf1, 0x63, 0x77, 0xaf, 0x42, 0x20, 0xe5, 0xfd, 0xbf,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	80 0x81, 0x18, 0x26, 0xc3, 0xbe, 0x35, 0x88, 0x2e, 0x93, 0x55, 0xfc, 0x7a, 0xc8, 0xba, 0x32, 0xe6,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	81 0xc0, 0x19, 0x9e, 0xa3, 0x44, 0x54, 0x3b, 0x0b, 0x8c, 0xc7, 0x6b, 0x28, 0xa7, 0xbc, 0x16, 0xad,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	82 0xdb, 0x64, 0x74, 0x14, 0x92, 0x0c, 0x48, 0xb8, 0x9f, 0xbd, 0x43, 0xc4, 0x39, 0x31, 0xd3, 0xf2,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	83 0xd5, 0x8b, 0x6e, 0xda, 0x01, 0xb1, 0x9c, 0x49, 0xd8, 0xac, 0xf3, 0xcf, 0xca, 0xf4, 0x47, 0x10,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	84 0x6f, 0xf0, 0x4a, 0x5c, 0x38, 0x57, 0x73, 0x97, 0xcb, 0xa1, 0xe8, 0x3e, 0x96, 0x61, 0x0d, 0x0f,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	85 0xe0, 0x7c, 0x71, 0xcc, 0x90, 0x06, 0xf7, 0x1c, 0xc2, 0x6a, 0xae, 0x69, 0x17, 0x99, 0x3a, 0x27,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	86 0xd9, 0xeb, 0x2b, 0x22, 0xd2, 0xa9, 0x07, 0x33, 0x2d, 0x3c, 0x15, 0xc9, 0x87, 0xaa, 0x50, 0xa5,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	87 0x03, 0x59, 0x09, 0x1a, 0x65, 0xd7, 0x84, 0xd0, 0x82, 0x29, 0x5a, 0x1e, 0x7b, 0xa8, 0x6d, 0x2c
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	88 };
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	89
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	90 // combined Xtimes3[Sbox[]]
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	91 #define Xtime3Sbox(i) (pgm_read_byte(&P_Xtime3Sbox[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	92 const unsigned char P_Xtime3Sbox[256] __attribute__ ((__progmem__)) = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	93 0xa5, 0x84, 0x99, 0x8d, 0x0d, 0xbd, 0xb1, 0x54, 0x50, 0x03, 0xa9, 0x7d, 0x19, 0x62, 0xe6, 0x9a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	94 0x45, 0x9d, 0x40, 0x87, 0x15, 0xeb, 0xc9, 0x0b, 0xec, 0x67, 0xfd, 0xea, 0xbf, 0xf7, 0x96, 0x5b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	95 0xc2, 0x1c, 0xae, 0x6a, 0x5a, 0x41, 0x02, 0x4f, 0x5c, 0xf4, 0x34, 0x08, 0x93, 0x73, 0x53, 0x3f,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	96 0x0c, 0x52, 0x65, 0x5e, 0x28, 0xa1, 0x0f, 0xb5, 0x09, 0x36, 0x9b, 0x3d, 0x26, 0x69, 0xcd, 0x9f,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	97 0x1b, 0x9e, 0x74, 0x2e, 0x2d, 0xb2, 0xee, 0xfb, 0xf6, 0x4d, 0x61, 0xce, 0x7b, 0x3e, 0x71, 0x97,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	98 0xf5, 0x68, 0x00, 0x2c, 0x60, 0x1f, 0xc8, 0xed, 0xbe, 0x46, 0xd9, 0x4b, 0xde, 0xd4, 0xe8, 0x4a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	99 0x6b, 0x2a, 0xe5, 0x16, 0xc5, 0xd7, 0x55, 0x94, 0xcf, 0x10, 0x06, 0x81, 0xf0, 0x44, 0xba, 0xe3,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	100 0xf3, 0xfe, 0xc0, 0x8a, 0xad, 0xbc, 0x48, 0x04, 0xdf, 0xc1, 0x75, 0x63, 0x30, 0x1a, 0x0e, 0x6d,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	101 0x4c, 0x14, 0x35, 0x2f, 0xe1, 0xa2, 0xcc, 0x39, 0x57, 0xf2, 0x82, 0x47, 0xac, 0xe7, 0x2b, 0x95,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	102 0xa0, 0x98, 0xd1, 0x7f, 0x66, 0x7e, 0xab, 0x83, 0xca, 0x29, 0xd3, 0x3c, 0x79, 0xe2, 0x1d, 0x76,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	103 0x3b, 0x56, 0x4e, 0x1e, 0xdb, 0x0a, 0x6c, 0xe4, 0x5d, 0x6e, 0xef, 0xa6, 0xa8, 0xa4, 0x37, 0x8b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	104 0x32, 0x43, 0x59, 0xb7, 0x8c, 0x64, 0xd2, 0xe0, 0xb4, 0xfa, 0x07, 0x25, 0xaf, 0x8e, 0xe9, 0x18,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	105 0xd5, 0x88, 0x6f, 0x72, 0x24, 0xf1, 0xc7, 0x51, 0x23, 0x7c, 0x9c, 0x21, 0xdd, 0xdc, 0x86, 0x85,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	106 0x90, 0x42, 0xc4, 0xaa, 0xd8, 0x05, 0x01, 0x12, 0xa3, 0x5f, 0xf9, 0xd0, 0x91, 0x58, 0x27, 0xb9,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	107 0x38, 0x13, 0xb3, 0x33, 0xbb, 0x70, 0x89, 0xa7, 0xb6, 0x22, 0x92, 0x20, 0x49, 0xff, 0x78, 0x7a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	108 0x8f, 0xf8, 0x80, 0x17, 0xda, 0x31, 0xc6, 0xb8, 0xc3, 0xb0, 0x77, 0x11, 0xcb, 0xfc, 0xd6, 0x3a
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	109 };
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	110
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	111 // modular multiplication tables
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	112 // based on:
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	113
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	114 // Xtime2[x] = (x & 0x80 ? 0x1b : 0) ^ (x + x)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	115 // Xtime3[x] = x^Xtime2[x];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	116
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	117 #define Xtime2(i) (pgm_read_byte(&P_Xtime2[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	118 const unsigned char P_Xtime2[256] __attribute__ ((__progmem__)) = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	119 0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	120 0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	121 0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	122 0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	123 0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	124 0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	125 0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	126 0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	127 0x1b, 0x19, 0x1f, 0x1d, 0x13, 0x11, 0x17, 0x15, 0x0b, 0x09, 0x0f, 0x0d, 0x03, 0x01, 0x07, 0x05,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	128 0x3b, 0x39, 0x3f, 0x3d, 0x33, 0x31, 0x37, 0x35, 0x2b, 0x29, 0x2f, 0x2d, 0x23, 0x21, 0x27, 0x25,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	129 0x5b, 0x59, 0x5f, 0x5d, 0x53, 0x51, 0x57, 0x55, 0x4b, 0x49, 0x4f, 0x4d, 0x43, 0x41, 0x47, 0x45,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	130 0x7b, 0x79, 0x7f, 0x7d, 0x73, 0x71, 0x77, 0x75, 0x6b, 0x69, 0x6f, 0x6d, 0x63, 0x61, 0x67, 0x65,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	131 0x9b, 0x99, 0x9f, 0x9d, 0x93, 0x91, 0x97, 0x95, 0x8b, 0x89, 0x8f, 0x8d, 0x83, 0x81, 0x87, 0x85,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	132 0xbb, 0xb9, 0xbf, 0xbd, 0xb3, 0xb1, 0xb7, 0xb5, 0xab, 0xa9, 0xaf, 0xad, 0xa3, 0xa1, 0xa7, 0xa5,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	133 0xdb, 0xd9, 0xdf, 0xdd, 0xd3, 0xd1, 0xd7, 0xd5, 0xcb, 0xc9, 0xcf, 0xcd, 0xc3, 0xc1, 0xc7, 0xc5,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	134 0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed, 0xe3, 0xe1, 0xe7, 0xe5};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	135
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	136 #define Xtime9(i) (pgm_read_byte(&P_Xtime9[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	137 const unsigned char P_Xtime9[256] __attribute__ ((__progmem__)) = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	138 0x00, 0x09, 0x12, 0x1b, 0x24, 0x2d, 0x36, 0x3f, 0x48, 0x41, 0x5a, 0x53, 0x6c, 0x65, 0x7e, 0x77,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	139 0x90, 0x99, 0x82, 0x8b, 0xb4, 0xbd, 0xa6, 0xaf, 0xd8, 0xd1, 0xca, 0xc3, 0xfc, 0xf5, 0xee, 0xe7,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	140 0x3b, 0x32, 0x29, 0x20, 0x1f, 0x16, 0x0d, 0x04, 0x73, 0x7a, 0x61, 0x68, 0x57, 0x5e, 0x45, 0x4c,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	141 0xab, 0xa2, 0xb9, 0xb0, 0x8f, 0x86, 0x9d, 0x94, 0xe3, 0xea, 0xf1, 0xf8, 0xc7, 0xce, 0xd5, 0xdc,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	142 0x76, 0x7f, 0x64, 0x6d, 0x52, 0x5b, 0x40, 0x49, 0x3e, 0x37, 0x2c, 0x25, 0x1a, 0x13, 0x08, 0x01,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	143 0xe6, 0xef, 0xf4, 0xfd, 0xc2, 0xcb, 0xd0, 0xd9, 0xae, 0xa7, 0xbc, 0xb5, 0x8a, 0x83, 0x98, 0x91,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	144 0x4d, 0x44, 0x5f, 0x56, 0x69, 0x60, 0x7b, 0x72, 0x05, 0x0c, 0x17, 0x1e, 0x21, 0x28, 0x33, 0x3a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	145 0xdd, 0xd4, 0xcf, 0xc6, 0xf9, 0xf0, 0xeb, 0xe2, 0x95, 0x9c, 0x87, 0x8e, 0xb1, 0xb8, 0xa3, 0xaa,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	146 0xec, 0xe5, 0xfe, 0xf7, 0xc8, 0xc1, 0xda, 0xd3, 0xa4, 0xad, 0xb6, 0xbf, 0x80, 0x89, 0x92, 0x9b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	147 0x7c, 0x75, 0x6e, 0x67, 0x58, 0x51, 0x4a, 0x43, 0x34, 0x3d, 0x26, 0x2f, 0x10, 0x19, 0x02, 0x0b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	148 0xd7, 0xde, 0xc5, 0xcc, 0xf3, 0xfa, 0xe1, 0xe8, 0x9f, 0x96, 0x8d, 0x84, 0xbb, 0xb2, 0xa9, 0xa0,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	149 0x47, 0x4e, 0x55, 0x5c, 0x63, 0x6a, 0x71, 0x78, 0x0f, 0x06, 0x1d, 0x14, 0x2b, 0x22, 0x39, 0x30,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	150 0x9a, 0x93, 0x88, 0x81, 0xbe, 0xb7, 0xac, 0xa5, 0xd2, 0xdb, 0xc0, 0xc9, 0xf6, 0xff, 0xe4, 0xed,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	151 0x0a, 0x03, 0x18, 0x11, 0x2e, 0x27, 0x3c, 0x35, 0x42, 0x4b, 0x50, 0x59, 0x66, 0x6f, 0x74, 0x7d,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	152 0xa1, 0xa8, 0xb3, 0xba, 0x85, 0x8c, 0x97, 0x9e, 0xe9, 0xe0, 0xfb, 0xf2, 0xcd, 0xc4, 0xdf, 0xd6,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	153 0x31, 0x38, 0x23, 0x2a, 0x15, 0x1c, 0x07, 0x0e, 0x79, 0x70, 0x6b, 0x62, 0x5d, 0x54, 0x4f, 0x46};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	154
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	155 #define XtimeB(i) (pgm_read_byte(&P_XtimeB[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	156 const unsigned char P_XtimeB[256] __attribute__ ((__progmem__)) = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	157 0x00, 0x0b, 0x16, 0x1d, 0x2c, 0x27, 0x3a, 0x31, 0x58, 0x53, 0x4e, 0x45, 0x74, 0x7f, 0x62, 0x69,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	158 0xb0, 0xbb, 0xa6, 0xad, 0x9c, 0x97, 0x8a, 0x81, 0xe8, 0xe3, 0xfe, 0xf5, 0xc4, 0xcf, 0xd2, 0xd9,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	159 0x7b, 0x70, 0x6d, 0x66, 0x57, 0x5c, 0x41, 0x4a, 0x23, 0x28, 0x35, 0x3e, 0x0f, 0x04, 0x19, 0x12,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	160 0xcb, 0xc0, 0xdd, 0xd6, 0xe7, 0xec, 0xf1, 0xfa, 0x93, 0x98, 0x85, 0x8e, 0xbf, 0xb4, 0xa9, 0xa2,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	161 0xf6, 0xfd, 0xe0, 0xeb, 0xda, 0xd1, 0xcc, 0xc7, 0xae, 0xa5, 0xb8, 0xb3, 0x82, 0x89, 0x94, 0x9f,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	162 0x46, 0x4d, 0x50, 0x5b, 0x6a, 0x61, 0x7c, 0x77, 0x1e, 0x15, 0x08, 0x03, 0x32, 0x39, 0x24, 0x2f,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	163 0x8d, 0x86, 0x9b, 0x90, 0xa1, 0xaa, 0xb7, 0xbc, 0xd5, 0xde, 0xc3, 0xc8, 0xf9, 0xf2, 0xef, 0xe4,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	164 0x3d, 0x36, 0x2b, 0x20, 0x11, 0x1a, 0x07, 0x0c, 0x65, 0x6e, 0x73, 0x78, 0x49, 0x42, 0x5f, 0x54,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	165 0xf7, 0xfc, 0xe1, 0xea, 0xdb, 0xd0, 0xcd, 0xc6, 0xaf, 0xa4, 0xb9, 0xb2, 0x83, 0x88, 0x95, 0x9e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	166 0x47, 0x4c, 0x51, 0x5a, 0x6b, 0x60, 0x7d, 0x76, 0x1f, 0x14, 0x09, 0x02, 0x33, 0x38, 0x25, 0x2e,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	167 0x8c, 0x87, 0x9a, 0x91, 0xa0, 0xab, 0xb6, 0xbd, 0xd4, 0xdf, 0xc2, 0xc9, 0xf8, 0xf3, 0xee, 0xe5,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	168 0x3c, 0x37, 0x2a, 0x21, 0x10, 0x1b, 0x06, 0x0d, 0x64, 0x6f, 0x72, 0x79, 0x48, 0x43, 0x5e, 0x55,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	169 0x01, 0x0a, 0x17, 0x1c, 0x2d, 0x26, 0x3b, 0x30, 0x59, 0x52, 0x4f, 0x44, 0x75, 0x7e, 0x63, 0x68,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	170 0xb1, 0xba, 0xa7, 0xac, 0x9d, 0x96, 0x8b, 0x80, 0xe9, 0xe2, 0xff, 0xf4, 0xc5, 0xce, 0xd3, 0xd8,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	171 0x7a, 0x71, 0x6c, 0x67, 0x56, 0x5d, 0x40, 0x4b, 0x22, 0x29, 0x34, 0x3f, 0x0e, 0x05, 0x18, 0x13,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	172 0xca, 0xc1, 0xdc, 0xd7, 0xe6, 0xed, 0xf0, 0xfb, 0x92, 0x99, 0x84, 0x8f, 0xbe, 0xb5, 0xa8, 0xa3};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	173
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	174 #define XtimeD(i) (pgm_read_byte(&P_XtimeD[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	175 const unsigned char P_XtimeD[256] __attribute__ ((__progmem__)) = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	176 0x00, 0x0d, 0x1a, 0x17, 0x34, 0x39, 0x2e, 0x23, 0x68, 0x65, 0x72, 0x7f, 0x5c, 0x51, 0x46, 0x4b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	177 0xd0, 0xdd, 0xca, 0xc7, 0xe4, 0xe9, 0xfe, 0xf3, 0xb8, 0xb5, 0xa2, 0xaf, 0x8c, 0x81, 0x96, 0x9b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	178 0xbb, 0xb6, 0xa1, 0xac, 0x8f, 0x82, 0x95, 0x98, 0xd3, 0xde, 0xc9, 0xc4, 0xe7, 0xea, 0xfd, 0xf0,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	179 0x6b, 0x66, 0x71, 0x7c, 0x5f, 0x52, 0x45, 0x48, 0x03, 0x0e, 0x19, 0x14, 0x37, 0x3a, 0x2d, 0x20,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	180 0x6d, 0x60, 0x77, 0x7a, 0x59, 0x54, 0x43, 0x4e, 0x05, 0x08, 0x1f, 0x12, 0x31, 0x3c, 0x2b, 0x26,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	181 0xbd, 0xb0, 0xa7, 0xaa, 0x89, 0x84, 0x93, 0x9e, 0xd5, 0xd8, 0xcf, 0xc2, 0xe1, 0xec, 0xfb, 0xf6,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	182 0xd6, 0xdb, 0xcc, 0xc1, 0xe2, 0xef, 0xf8, 0xf5, 0xbe, 0xb3, 0xa4, 0xa9, 0x8a, 0x87, 0x90, 0x9d,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	183 0x06, 0x0b, 0x1c, 0x11, 0x32, 0x3f, 0x28, 0x25, 0x6e, 0x63, 0x74, 0x79, 0x5a, 0x57, 0x40, 0x4d,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	184 0xda, 0xd7, 0xc0, 0xcd, 0xee, 0xe3, 0xf4, 0xf9, 0xb2, 0xbf, 0xa8, 0xa5, 0x86, 0x8b, 0x9c, 0x91,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	185 0x0a, 0x07, 0x10, 0x1d, 0x3e, 0x33, 0x24, 0x29, 0x62, 0x6f, 0x78, 0x75, 0x56, 0x5b, 0x4c, 0x41,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	186 0x61, 0x6c, 0x7b, 0x76, 0x55, 0x58, 0x4f, 0x42, 0x09, 0x04, 0x13, 0x1e, 0x3d, 0x30, 0x27, 0x2a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	187 0xb1, 0xbc, 0xab, 0xa6, 0x85, 0x88, 0x9f, 0x92, 0xd9, 0xd4, 0xc3, 0xce, 0xed, 0xe0, 0xf7, 0xfa,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	188 0xb7, 0xba, 0xad, 0xa0, 0x83, 0x8e, 0x99, 0x94, 0xdf, 0xd2, 0xc5, 0xc8, 0xeb, 0xe6, 0xf1, 0xfc,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	189 0x67, 0x6a, 0x7d, 0x70, 0x53, 0x5e, 0x49, 0x44, 0x0f, 0x02, 0x15, 0x18, 0x3b, 0x36, 0x21, 0x2c,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	190 0x0c, 0x01, 0x16, 0x1b, 0x38, 0x35, 0x22, 0x2f, 0x64, 0x69, 0x7e, 0x73, 0x50, 0x5d, 0x4a, 0x47,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	191 0xdc, 0xd1, 0xc6, 0xcb, 0xe8, 0xe5, 0xf2, 0xff, 0xb4, 0xb9, 0xae, 0xa3, 0x80, 0x8d, 0x9a, 0x97};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	192
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	193 #define XtimeE(i) (pgm_read_byte(&P_XtimeE[i]))
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	194 const unsigned char P_XtimeE[256] __attribute__ ((__progmem__)) = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	195 0x00, 0x0e, 0x1c, 0x12, 0x38, 0x36, 0x24, 0x2a, 0x70, 0x7e, 0x6c, 0x62, 0x48, 0x46, 0x54, 0x5a,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	196 0xe0, 0xee, 0xfc, 0xf2, 0xd8, 0xd6, 0xc4, 0xca, 0x90, 0x9e, 0x8c, 0x82, 0xa8, 0xa6, 0xb4, 0xba,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	197 0xdb, 0xd5, 0xc7, 0xc9, 0xe3, 0xed, 0xff, 0xf1, 0xab, 0xa5, 0xb7, 0xb9, 0x93, 0x9d, 0x8f, 0x81,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	198 0x3b, 0x35, 0x27, 0x29, 0x03, 0x0d, 0x1f, 0x11, 0x4b, 0x45, 0x57, 0x59, 0x73, 0x7d, 0x6f, 0x61,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	199 0xad, 0xa3, 0xb1, 0xbf, 0x95, 0x9b, 0x89, 0x87, 0xdd, 0xd3, 0xc1, 0xcf, 0xe5, 0xeb, 0xf9, 0xf7,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	200 0x4d, 0x43, 0x51, 0x5f, 0x75, 0x7b, 0x69, 0x67, 0x3d, 0x33, 0x21, 0x2f, 0x05, 0x0b, 0x19, 0x17,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	201 0x76, 0x78, 0x6a, 0x64, 0x4e, 0x40, 0x52, 0x5c, 0x06, 0x08, 0x1a, 0x14, 0x3e, 0x30, 0x22, 0x2c,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	202 0x96, 0x98, 0x8a, 0x84, 0xae, 0xa0, 0xb2, 0xbc, 0xe6, 0xe8, 0xfa, 0xf4, 0xde, 0xd0, 0xc2, 0xcc,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	203 0x41, 0x4f, 0x5d, 0x53, 0x79, 0x77, 0x65, 0x6b, 0x31, 0x3f, 0x2d, 0x23, 0x09, 0x07, 0x15, 0x1b,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	204 0xa1, 0xaf, 0xbd, 0xb3, 0x99, 0x97, 0x85, 0x8b, 0xd1, 0xdf, 0xcd, 0xc3, 0xe9, 0xe7, 0xf5, 0xfb,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	205 0x9a, 0x94, 0x86, 0x88, 0xa2, 0xac, 0xbe, 0xb0, 0xea, 0xe4, 0xf6, 0xf8, 0xd2, 0xdc, 0xce, 0xc0,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	206 0x7a, 0x74, 0x66, 0x68, 0x42, 0x4c, 0x5e, 0x50, 0x0a, 0x04, 0x16, 0x18, 0x32, 0x3c, 0x2e, 0x20,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	207 0xec, 0xe2, 0xf0, 0xfe, 0xd4, 0xda, 0xc8, 0xc6, 0x9c, 0x92, 0x80, 0x8e, 0xa4, 0xaa, 0xb8, 0xb6,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	208 0x0c, 0x02, 0x10, 0x1e, 0x34, 0x3a, 0x28, 0x26, 0x7c, 0x72, 0x60, 0x6e, 0x44, 0x4a, 0x58, 0x56,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	209 0x37, 0x39, 0x2b, 0x25, 0x0f, 0x01, 0x13, 0x1d, 0x47, 0x49, 0x5b, 0x55, 0x7f, 0x71, 0x63, 0x6d,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	210 0xd7, 0xd9, 0xcb, 0xc5, 0xef, 0xe1, 0xf3, 0xfd, 0xa7, 0xa9, 0xbb, 0xb5, 0x9f, 0x91, 0x83, 0x8d};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	211
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	212 // exchanges columns in each of 4 rows
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	213 // row0 - unchanged, row1- shifted left 1,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	214 // row2 - shifted left 2 and row3 - shifted left 3
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	215 void ShiftRows (unsigned char *state)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	216 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	217 unsigned char tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	218
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	219 // just substitute row 0
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	220 state[0] = Sbox(state[0]), state[4] = Sbox(state[4]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	221 state[8] = Sbox(state[8]), state[12] = Sbox(state[12]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	222
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	223 // rotate row 1
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	224 tmp = Sbox(state[1]), state[1] = Sbox(state[5]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	225 state[5] = Sbox(state[9]), state[9] = Sbox(state[13]), state[13] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	226
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	227 // rotate row 2
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	228 tmp = Sbox(state[2]), state[2] = Sbox(state[10]), state[10] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	229 tmp = Sbox(state[6]), state[6] = Sbox(state[14]), state[14] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	230
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	231 // rotate row 3
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	232 tmp = Sbox(state[15]), state[15] = Sbox(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	233 state[11] = Sbox(state[7]), state[7] = Sbox(state[3]), state[3] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	234 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	235
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	236 // restores columns in each of 4 rows
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	237 // row0 - unchanged, row1- shifted right 1,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	238 // row2 - shifted right 2 and row3 - shifted right 3
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	239 void InvShiftRows (unsigned char *state)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	240 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	241 unsigned char tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	242
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	243 // restore row 0
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	244 state[0] = InvSbox(state[0]), state[4] = InvSbox(state[4]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	245 state[8] = InvSbox(state[8]), state[12] = InvSbox(state[12]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	246
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	247 // restore row 1
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	248 tmp = InvSbox(state[13]), state[13] = InvSbox(state[9]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	249 state[9] = InvSbox(state[5]), state[5] = InvSbox(state[1]), state[1] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	250
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	251 // restore row 2
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	252 tmp = InvSbox(state[2]), state[2] = InvSbox(state[10]), state[10] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	253 tmp = InvSbox(state[6]), state[6] = InvSbox(state[14]), state[14] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	254
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	255 // restore row 3
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	256 tmp = InvSbox(state[3]), state[3] = InvSbox(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	257 state[7] = InvSbox(state[11]), state[11] = InvSbox(state[15]), state[15] = tmp;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	258 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	259
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	260 // recombine and mix each row in a column
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	261 void MixSubColumns (unsigned char *state)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	262 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	263 unsigned char tmp[4 * Nb];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	264
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	265 // mixing column 0
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	266 tmp[0] = Xtime2Sbox(state[0]) ^ Xtime3Sbox(state[5]) ^ Sbox(state[10]) ^ Sbox(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	267 tmp[1] = Sbox(state[0]) ^ Xtime2Sbox(state[5]) ^ Xtime3Sbox(state[10]) ^ Sbox(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	268 tmp[2] = Sbox(state[0]) ^ Sbox(state[5]) ^ Xtime2Sbox(state[10]) ^ Xtime3Sbox(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	269 tmp[3] = Xtime3Sbox(state[0]) ^ Sbox(state[5]) ^ Sbox(state[10]) ^ Xtime2Sbox(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	270
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	271 // mixing column 1
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	272 tmp[4] = Xtime2Sbox(state[4]) ^ Xtime3Sbox(state[9]) ^ Sbox(state[14]) ^ Sbox(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	273 tmp[5] = Sbox(state[4]) ^ Xtime2Sbox(state[9]) ^ Xtime3Sbox(state[14]) ^ Sbox(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	274 tmp[6] = Sbox(state[4]) ^ Sbox(state[9]) ^ Xtime2Sbox(state[14]) ^ Xtime3Sbox(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	275 tmp[7] = Xtime3Sbox(state[4]) ^ Sbox(state[9]) ^ Sbox(state[14]) ^ Xtime2Sbox(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	276
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	277 // mixing column 2
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	278 tmp[8] = Xtime2Sbox(state[8]) ^ Xtime3Sbox(state[13]) ^ Sbox(state[2]) ^ Sbox(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	279 tmp[9] = Sbox(state[8]) ^ Xtime2Sbox(state[13]) ^ Xtime3Sbox(state[2]) ^ Sbox(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	280 tmp[10] = Sbox(state[8]) ^ Sbox(state[13]) ^ Xtime2Sbox(state[2]) ^ Xtime3Sbox(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	281 tmp[11] = Xtime3Sbox(state[8]) ^ Sbox(state[13]) ^ Sbox(state[2]) ^ Xtime2Sbox(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	282
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	283 // mixing column 3
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	284 tmp[12] = Xtime2Sbox(state[12]) ^ Xtime3Sbox(state[1]) ^ Sbox(state[6]) ^ Sbox(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	285 tmp[13] = Sbox(state[12]) ^ Xtime2Sbox(state[1]) ^ Xtime3Sbox(state[6]) ^ Sbox(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	286 tmp[14] = Sbox(state[12]) ^ Sbox(state[1]) ^ Xtime2Sbox(state[6]) ^ Xtime3Sbox(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	287 tmp[15] = Xtime3Sbox(state[12]) ^ Sbox(state[1]) ^ Sbox(state[6]) ^ Xtime2Sbox(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	288
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	289 memcpy (state, tmp, sizeof(tmp));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	290 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	291
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	292 // restore and un-mix each row in a column
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	293 void InvMixSubColumns (unsigned char *state)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	294 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	295 unsigned char tmp[4 * Nb];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	296 int i;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	297
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	298 // restore column 0
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	299 tmp[0] = XtimeE(state[0]) ^ XtimeB(state[1]) ^ XtimeD(state[2]) ^ Xtime9(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	300 tmp[5] = Xtime9(state[0]) ^ XtimeE(state[1]) ^ XtimeB(state[2]) ^ XtimeD(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	301 tmp[10] = XtimeD(state[0]) ^ Xtime9(state[1]) ^ XtimeE(state[2]) ^ XtimeB(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	302 tmp[15] = XtimeB(state[0]) ^ XtimeD(state[1]) ^ Xtime9(state[2]) ^ XtimeE(state[3]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	303
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	304 // restore column 1
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	305 tmp[4] = XtimeE(state[4]) ^ XtimeB(state[5]) ^ XtimeD(state[6]) ^ Xtime9(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	306 tmp[9] = Xtime9(state[4]) ^ XtimeE(state[5]) ^ XtimeB(state[6]) ^ XtimeD(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	307 tmp[14] = XtimeD(state[4]) ^ Xtime9(state[5]) ^ XtimeE(state[6]) ^ XtimeB(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	308 tmp[3] = XtimeB(state[4]) ^ XtimeD(state[5]) ^ Xtime9(state[6]) ^ XtimeE(state[7]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	309
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	310 // restore column 2
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	311 tmp[8] = XtimeE(state[8]) ^ XtimeB(state[9]) ^ XtimeD(state[10]) ^ Xtime9(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	312 tmp[13] = Xtime9(state[8]) ^ XtimeE(state[9]) ^ XtimeB(state[10]) ^ XtimeD(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	313 tmp[2] = XtimeD(state[8]) ^ Xtime9(state[9]) ^ XtimeE(state[10]) ^ XtimeB(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	314 tmp[7] = XtimeB(state[8]) ^ XtimeD(state[9]) ^ Xtime9(state[10]) ^ XtimeE(state[11]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	315
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	316 // restore column 3
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	317 tmp[12] = XtimeE(state[12]) ^ XtimeB(state[13]) ^ XtimeD(state[14]) ^ Xtime9(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	318 tmp[1] = Xtime9(state[12]) ^ XtimeE(state[13]) ^ XtimeB(state[14]) ^ XtimeD(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	319 tmp[6] = XtimeD(state[12]) ^ Xtime9(state[13]) ^ XtimeE(state[14]) ^ XtimeB(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	320 tmp[11] = XtimeB(state[12]) ^ XtimeD(state[13]) ^ Xtime9(state[14]) ^ XtimeE(state[15]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	321
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	322 for( i=0; i < 4 * Nb; i++ )
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	323 state[i] = InvSbox(tmp[i]);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	324 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	325
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	326 // encrypt/decrypt columns of the key
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	327 // n.b. you can replace this with
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	328 // byte-wise xor if you wish.
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	329
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	330 void AddRoundKey (unsigned state, unsigned key)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	331 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	332 int idx;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	333
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	334 for( idx = 0; idx < 4; idx++ )
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	335 state[idx] ^= key[idx];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	336 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	337
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	338 unsigned char Rcon[11] = {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	339 0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	340
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	341 // produce Nb bytes for each round
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	342 void ExpandKey (unsigned char key, unsigned char expkey)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	343 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	344 unsigned char tmp0, tmp1, tmp2, tmp3, tmp4;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	345 unsigned idx;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	346
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	347 memcpy (expkey, key, Nk * 4);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	348
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	349 for( idx = Nk; idx < Nb * (Nr + 1); idx++ ) {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	350 tmp0 = expkey[4*idx - 4];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	351 tmp1 = expkey[4*idx - 3];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	352 tmp2 = expkey[4*idx - 2];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	353 tmp3 = expkey[4*idx - 1];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	354 if( !(idx % Nk) ) {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	355 tmp4 = tmp3;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	356 tmp3 = Sbox(tmp0);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	357 tmp0 = Sbox(tmp1) ^ Rcon[idx/Nk];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	358 tmp1 = Sbox(tmp2);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	359 tmp2 = Sbox(tmp4);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	360 } else if( Nk > 6 && idx % Nk == 4 ) {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	361 tmp0 = Sbox(tmp0);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	362 tmp1 = Sbox(tmp1);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	363 tmp2 = Sbox(tmp2);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	364 tmp3 = Sbox(tmp3);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	365 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	366
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	367 expkey[4idx+0] = expkey[4idx - 4*Nk + 0] ^ tmp0;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	368 expkey[4idx+1] = expkey[4idx - 4*Nk + 1] ^ tmp1;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	369 expkey[4idx+2] = expkey[4idx - 4*Nk + 2] ^ tmp2;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	370 expkey[4idx+3] = expkey[4idx - 4*Nk + 3] ^ tmp3;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	371 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	372 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	373
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	374 // encrypt one 128 bit block
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	375 void Encrypt (unsigned char in, unsigned char expkey, unsigned char *out)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	376 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	377 unsigned char state[Nb * 4];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	378 unsigned round;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	379
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	380 memcpy (state, in, Nb * 4);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	381 AddRoundKey ((unsigned )state, (unsigned )expkey);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	382
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	383 for( round = 1; round < Nr + 1; round++ ) {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	384 if( round < Nr )
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	385 MixSubColumns (state);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	386 else
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	387 ShiftRows (state);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	388
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	389 AddRoundKey ((unsigned )state, (unsigned )expkey + round * Nb);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	390 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	391
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	392 memcpy (out, state, sizeof(state));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	393 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	394
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	395 void Decrypt (unsigned char in, unsigned char expkey, unsigned char *out)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	396 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	397 unsigned char state[Nb * 4];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	398 unsigned round;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	399
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	400 memcpy (state, in, sizeof(state));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	401
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	402 AddRoundKey ((unsigned )state, (unsigned )expkey + Nr * Nb);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	403 InvShiftRows(state);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	404
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	405 for( round = Nr; round--; )
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	406 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	407 AddRoundKey ((unsigned )state, (unsigned )expkey + round * Nb);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	408 if( round )
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	409 InvMixSubColumns (state);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	410 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	411
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	412 memcpy (out, state, sizeof(state));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	413 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	414
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	415
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	416 /avr specific routines/
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	417 #include "backward.h"
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	418 #include <avr/io.h>
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	419 #include <avr/pgmspace.h>
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	420 #include <avr/eeprom.h>
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	421 #include <avr/interrupt.h>
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	422 #include <avr/sleep.h>
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	423
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	424
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	425
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	426 #if defined(at90s2313) \|\| defined(at90s8535)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	427 #else
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	428 #define ATmega
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	429 #endif
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	430
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	431 #ifdef ATmega
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	432 #define USR UCSRA
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	433 #endif
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	434
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	435
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	436
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	437 void printP (PGM_P string){
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	438 char c;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	439 c=pgm_read_byte(string);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	440 while (c) {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	441 loop_until_bit_is_set(USR, UDRE);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	442 UDR = c;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	443 c=pgm_read_byte(++string);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	444 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	445 return;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	446 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	447
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	448
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	449
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	450 void print (const char *string){
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	451 while (*string) {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	452 loop_until_bit_is_set(USR, UDRE);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	453 UDR = *string++;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	454 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	455 return;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	456 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	457
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	458 void scan(char *string){
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	459 char c;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	460 do {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	461 do {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	462 loop_until_bit_is_set(USR, RXC);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	463 c =UDR;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	464 } while bit_is_set(USR, FE);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	465 *string++ = c;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	466 //echo the character
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	467 loop_until_bit_is_set(USR, UDRE);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	468 UDR = c;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	469 } while ( c != '\r' );
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	470 loop_until_bit_is_set(USR, UDRE);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	471 UDR = '\n';
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	472 string[-1]=0;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	473 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	474
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	475
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	476 //UART initialize
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	477 #ifdef ATmega
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	478 #define UCR UCSRB
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	479 #define UART_INIT(baud) { \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	480 UBRRH=0; \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	481 UBRRL= (XTAL/baud+15)/16-1; \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	482 UCSRB=(1<<TXEN)\|(1<<RXEN); \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	483 UCSRC=(1<<URSEL)\|(1<<UCSZ0)\|(1<<UCSZ1)\|(1<<USBS); }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	484 #else
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	485 #define UART_INIT(baud) { \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	486 UBRR = (XTAL/baud+15)/16-1; \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	487 sbi(UCR, TXEN); \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	488 sbi(UCR, RXEN); \
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	489 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	490 #endif
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	491
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	492 #define itoa10(N,S) itoa(N,S,10)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	493 #define itoa16(N,S) itoa(N,S,16)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	494
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	495
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	496 //DEMO
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	497
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	498 unsigned char sampleout[16];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	499
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	500
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	501 unsigned char samplekey[] = {0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	502 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	503
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	504 unsigned char samplein[] = {0x32, 0x43, 0xf6, 0xa8, 0x88, 0x5a, 0x30, 0x8d, 0x31,
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	505 0x31, 0x98, 0xa2, 0xe0, 0x37, 0x07, 0x34};
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	506
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	507 #define BAUD 115200
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	508
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	509 int main(void)
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	510 {
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	511 UART_INIT(BAUD);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	512
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	513 unsigned char expkey[4 * Nb * (Nr + 1)];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	514 unsigned char i;
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	515 char c[8];
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	516
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	517 printP(PSTR("Original: "));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	518 for( i = 0; i < 16; i++ ) {itoa16(samplein[i],c);print(c); print(" ");}
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	519 printP(PSTR("\n"));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	520
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	521 ExpandKey (samplekey, expkey);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	522 Encrypt (samplein, expkey, sampleout);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	523
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	524 printP(PSTR("Encrypted: "));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	525 for( i = 0; i < 16; i++ ) {itoa16(sampleout[i],c);print(c); print(" ");}
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	526 printP(PSTR("\n"));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	527
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	528 Decrypt (sampleout, expkey, samplein);
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	529
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	530 printP(PSTR("Decrypted: "));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	531
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	532 for( i = 0; i < 16; i++ ) {itoa16(samplein[i],c);print(c); print(" ");}
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	533 printP(PSTR("\n"));
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	534 }
ca3a006e292c add aes.c from http://www.pittnerovi.com/jiri/hobby/electronics/crypto/ Matt Johnston <matt@ucc.asn.au> parents: diff changeset	535

Mercurial > pihelp

annotate aes.c @ 3:ca3a006e292c