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

#ifndef __TEST_H_
#define __TEST_H_

#include <tomcrypt.h>

/* enable stack testing */
/* #define STACK_TEST */

/* stack testing, define this if stack usage goes downwards [e.g. x86] */
#define STACK_DOWN

typedef struct {
    char *name, *prov, *req;
    int  (*entry)(void);
} test_entry;

extern prng_state yarrow_prng;

void run_cmd(int res, int line, char *file, char *cmd);

#ifdef LTC_VERBOSE
#define DO(x) do { fprintf(stderr, "%s:\n", #x); run_cmd((x), __LINE__, __FILE__, #x); } while (0);
#else
#define DO(x) do { run_cmd((x), __LINE__, __FILE__, #x); } while (0);
#endif

/* TESTS */
int cipher_hash_test(void);
int modes_test(void);
int mac_test(void);
int pkcs_1_test(void);
int store_test(void);
int rsa_test(void);
int katja_test(void);
int ecc_tests(void);
int dsa_test(void);
int der_tests(void);

/* timing */
#define KTIMES  25
#define TIMES   100000

extern struct list {
    int id;
    unsigned long spd1, spd2, avg;
} results[];

extern int no_results;

int sorter(const void *a, const void *b);
void tally_results(int type);
ulong64 rdtsc (void);

void t_start(void);
ulong64 t_read(void);
void init_timer(void);

/* register default algs */
void reg_algs(void);
int time_keysched(void);
int time_cipher(void);
int time_cipher2(void);
int time_cipher3(void);
int time_hash(void);
void time_mult(void);
void time_sqr(void);
void time_prng(void);
void time_rsa(void);
void time_dsa(void);
void time_katja(void);
void time_ecc(void);
void time_macs_(unsigned long MAC_SIZE);
void time_macs(void);
void time_encmacs(void);



#endif

/* $Source$ */
/* $Revision$ */
/* $Date$ */