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57 lines
2.6 KiB
C
57 lines
2.6 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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/* The implementation is based on:
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* Public Domain poly1305 from Andrew Moon
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* https://github.com/floodyberry/poly1305-donna
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*/
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#include "tomcrypt.h"
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#ifdef LTC_POLY1305
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int poly1305_test(void)
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{
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#ifndef LTC_TEST
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return CRYPT_NOP;
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#else
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/* https://tools.ietf.org/html/rfc7539#section-2.5.2 */
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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 };
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unsigned char tag[] = { 0xA8, 0x06, 0x1D, 0xC1, 0x30, 0x51, 0x36, 0xC6, 0xC2, 0x2B, 0x8B, 0xAF, 0x0C, 0x01, 0x27, 0xA9 };
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char m[] = "Cryptographic Forum Research Group";
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unsigned long len = 16, mlen = strlen(m);
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unsigned char out[1000];
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poly1305_state st;
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int err;
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/* process piece by piece */
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if ((err = poly1305_init(&st, k, 32)) != CRYPT_OK) return err;
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if ((err = poly1305_process(&st, (unsigned char*)m, 5)) != CRYPT_OK) return err;
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if ((err = poly1305_process(&st, (unsigned char*)m + 5, 4)) != CRYPT_OK) return err;
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if ((err = poly1305_process(&st, (unsigned char*)m + 9, 3)) != CRYPT_OK) return err;
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if ((err = poly1305_process(&st, (unsigned char*)m + 12, 2)) != CRYPT_OK) return err;
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if ((err = poly1305_process(&st, (unsigned char*)m + 14, 1)) != CRYPT_OK) return err;
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if ((err = poly1305_process(&st, (unsigned char*)m + 15, mlen - 15)) != CRYPT_OK) return err;
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if ((err = poly1305_done(&st, out, &len)) != CRYPT_OK) return err;
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if (compare_testvector(out, len, tag, sizeof(tag), "POLY1305-TV1", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
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/* process in one go */
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if ((err = poly1305_init(&st, k, 32)) != CRYPT_OK) return err;
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if ((err = poly1305_process(&st, (unsigned char*)m, mlen)) != CRYPT_OK) return err;
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if ((err = poly1305_done(&st, out, &len)) != CRYPT_OK) return err;
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if (compare_testvector(out, len, tag, sizeof(tag), "POLY1305-TV2", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
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return CRYPT_OK;
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#endif
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}
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#endif
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/* ref: HEAD -> master, tag: v1.18.2 */
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/* git commit: 7e7eb695d581782f04b24dc444cbfde86af59853 */
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/* commit time: 2018-07-01 22:49:01 +0200 */
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