47 lines
2.3 KiB
C
47 lines
2.3 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
|
|
/* SPDX-License-Identifier: Unlicense */
|
|
|
|
/* The implementation is based on:
|
|
* Public Domain poly1305 from Andrew Moon
|
|
* https://github.com/floodyberry/poly1305-donna
|
|
*/
|
|
|
|
#include "tomcrypt_private.h"
|
|
|
|
#ifdef LTC_POLY1305
|
|
|
|
int poly1305_test(void)
|
|
{
|
|
#ifndef LTC_TEST
|
|
return CRYPT_NOP;
|
|
#else
|
|
/* https://tools.ietf.org/html/rfc7539#section-2.5.2 */
|
|
unsigned char k[] = { 0x85, 0xd6, 0xbe, 0x78, 0x57, 0x55, 0x6d, 0x33, 0x7f, 0x44, 0x52, 0xfe, 0x42, 0xd5, 0x06, 0xa8, 0x01, 0x03, 0x80, 0x8a, 0xfb, 0x0d, 0xb2, 0xfd, 0x4a, 0xbf, 0xf6, 0xaf, 0x41, 0x49, 0xf5, 0x1b };
|
|
unsigned char tag[] = { 0xA8, 0x06, 0x1D, 0xC1, 0x30, 0x51, 0x36, 0xC6, 0xC2, 0x2B, 0x8B, 0xAF, 0x0C, 0x01, 0x27, 0xA9 };
|
|
char m[] = "Cryptographic Forum Research Group";
|
|
unsigned long len = 16, mlen = XSTRLEN(m);
|
|
unsigned char out[1000];
|
|
poly1305_state st;
|
|
int err;
|
|
|
|
/* process piece by piece */
|
|
if ((err = poly1305_init(&st, k, 32)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_process(&st, (unsigned char*)m, 5)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_process(&st, (unsigned char*)m + 5, 4)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_process(&st, (unsigned char*)m + 9, 3)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_process(&st, (unsigned char*)m + 12, 2)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_process(&st, (unsigned char*)m + 14, 1)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_process(&st, (unsigned char*)m + 15, mlen - 15)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_done(&st, out, &len)) != CRYPT_OK) return err;
|
|
if (compare_testvector(out, len, tag, sizeof(tag), "POLY1305-TV1", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
|
|
/* process in one go */
|
|
if ((err = poly1305_init(&st, k, 32)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_process(&st, (unsigned char*)m, mlen)) != CRYPT_OK) return err;
|
|
if ((err = poly1305_done(&st, out, &len)) != CRYPT_OK) return err;
|
|
if (compare_testvector(out, len, tag, sizeof(tag), "POLY1305-TV2", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
|
|
return CRYPT_OK;
|
|
#endif
|
|
}
|
|
|
|
#endif
|