dropbear: libtomcrypt/src/mac/blake2/blake2bmac

annotate libtomcrypt/src/mac/blake2/blake2bmac_memory.c @ 1672:3a97f14c0235

Add Chacha20-Poly1305, AES128-GCM and AES256-GCM support (#93) * Add Chacha20-Poly1305 authenticated encryption * Add general AEAD approach. * Add [email protected] algo using LibTomCrypt chacha and poly1305 routines. Chacha20-Poly1305 is generally faster than AES256 on CPU w/o dedicated AES instructions, having the same key size. Compiling in will add ~5,5kB to binary size on x86-64. function old new delta chacha_crypt - 1397 +1397 _poly1305_block - 608 +608 poly1305_done - 595 +595 dropbear_chachapoly_crypt - 457 +457 .rodata 26976 27392 +416 poly1305_process - 290 +290 poly1305_init - 221 +221 chacha_setup - 218 +218 encrypt_packet 1068 1270 +202 dropbear_chachapoly_getlength - 147 +147 decrypt_packet 756 897 +141 chacha_ivctr64 - 137 +137 read_packet 543 637 +94 dropbear_chachapoly_start - 94 +94 read_kex_algos 792 880 +88 chacha_keystream - 69 +69 dropbear_mode_chachapoly - 48 +48 sshciphers 280 320 +40 dropbear_mode_none 24 48 +24 dropbear_mode_ctr 24 48 +24 dropbear_mode_cbc 24 48 +24 dropbear_chachapoly_mac - 24 +24 dropbear_chachapoly - 24 +24 gen_new_keys 848 854 +6 ------------------------------------------------------------------------------ (add/remove: 14/0 grow/shrink: 10/0 up/down: 5388/0) Total: 5388 bytes * Add AES128-GCM and AES256-GCM authenticated encryption * Add general AES-GCM mode. * Add [email protected] and [email protected] algo using LibTomCrypt gcm routines. AES-GCM is combination of AES CTR mode and GHASH, slower than AES-CTR on CPU w/o dedicated AES/GHASH instructions therefore disabled by default. Compiling in will add ~6kB to binary size on x86-64. function old new delta gcm_process - 1060 +1060 .rodata 26976 27808 +832 gcm_gf_mult - 820 +820 gcm_add_aad - 660 +660 gcm_shift_table - 512 +512 gcm_done - 471 +471 gcm_add_iv - 384 +384 gcm_init - 347 +347 dropbear_gcm_crypt - 309 +309 encrypt_packet 1068 1270 +202 decrypt_packet 756 897 +141 gcm_reset - 118 +118 read_packet 543 637 +94 read_kex_algos 792 880 +88 sshciphers 280 360 +80 gcm_mult_h - 80 +80 dropbear_gcm_start - 62 +62 dropbear_mode_gcm - 48 +48 dropbear_mode_none 24 48 +24 dropbear_mode_ctr 24 48 +24 dropbear_mode_cbc 24 48 +24 dropbear_ghash - 24 +24 dropbear_gcm_getlength - 24 +24 gen_new_keys 848 854 +6 ------------------------------------------------------------------------------ (add/remove: 14/0 grow/shrink: 10/0 up/down: 6434/0) Total: 6434 bytes

author	Vladislav Grishenko <themiron@users.noreply.github.com>
date	Mon, 25 May 2020 20:50:25 +0500
parents	6dba84798cd5
children

rev	line source
1471 6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	2 *
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	3 * LibTomCrypt is a library that provides various cryptographic
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	4 * algorithms in a highly modular and flexible manner.
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	5 *
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	6 * The library is free for all purposes without any express
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	7 * guarantee it works.
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	8 */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	9
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10 #include "tomcrypt.h"
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	11
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	12 #ifdef LTC_BLAKE2BMAC
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	14 /**
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	15 BLAKE2B MAC a block of memory to produce the authentication tag
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 @param key The secret key
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17 @param keylen The length of the secret key (octets)
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 @param in The data to BLAKE2B MAC
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 @param inlen The length of the data to BLAKE2B MAC (octets)
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 @param mac [out] Destination of the authentication tag
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 @param maclen [in/out] Max size and resulting size of authentication tag
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 @return CRYPT_OK if successful
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 int blake2bmac_memory(const unsigned char key, unsigned long keylen, const unsigned char in, unsigned long inlen, unsigned char mac, unsigned long maclen)
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 {
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 blake2bmac_state st;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27 int err;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 LTC_ARGCHK(key != NULL);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 LTC_ARGCHK(in != NULL);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 LTC_ARGCHK(mac != NULL);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32 LTC_ARGCHK(maclen != NULL);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 if ((err = blake2bmac_init(&st, *maclen, key, keylen)) != CRYPT_OK) { goto LBL_ERR; }
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35 if ((err = blake2bmac_process(&st, in, inlen)) != CRYPT_OK) { goto LBL_ERR; }
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 err = blake2bmac_done(&st, mac, maclen);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37 LBL_ERR:
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 #ifdef LTC_CLEAN_STACK
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 zeromem(&st, sizeof(blake2bmac_state));
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 #endif
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	41 return err;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	42 }
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	43
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	44 #endif
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	45
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	46 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	47 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	48 /* commit time: $Format:%ai$ */

Mercurial > dropbear

annotate libtomcrypt/src/mac/blake2/blake2bmac_memory.c @ 1672:3a97f14c0235