dropbear: libtomcrypt/src/pk/rsa/rsa_get

annotate libtomcrypt/src/pk/rsa/rsa_get_size.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 #include "tomcrypt.h"
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	10
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 @file rsa_get_size.c
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	13 Retrieve the size of an RSA key, Steffen Jaeckel.
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
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	16 #ifdef LTC_MRSA
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	17
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	18 /**
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	19 Retrieve the size in bytes of an RSA key.
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	20 @param key The RSA key
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	21 @return The size in bytes of the RSA key or INT_MAX on error.
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	22 */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	23 int rsa_get_size(rsa_key *key)
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	24 {
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	25 int ret = INT_MAX;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	26 LTC_ARGCHK(key != NULL);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	27
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	28 if (key)
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	29 {
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	30 ret = mp_unsigned_bin_size(key->N);
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	31 } /* if */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	32
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	33 return ret;
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	34 }
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	35
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	36 #endif
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	37
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	38 /* ref: $Format:%D$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	39 /* git commit: $Format:%H$ */
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes Matt Johnston <matt@ucc.asn.au> parents: diff changeset	40 /* commit time: $Format:%ai$ */

Mercurial > dropbear

annotate libtomcrypt/src/pk/rsa/rsa_get_size.c @ 1672:3a97f14c0235