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annotate libtomcrypt/src/stream/chacha/chacha_test.c @ 1912:8b4274d34fe8

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Use buf_burn_free() instead of two calls
author Matt Johnston <matt@ucc.asn.au>
date Tue, 29 Mar 2022 23:47:30 +0800
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1471
6dba84798cd5 Update to libtomcrypt 1.18.1, merged with Dropbear changes
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 /* The implementation is based on:
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11 * chacha-ref.c version 20080118
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12 * Public domain from D. J. Bernstein
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13 */
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14
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15 #include "tomcrypt.h"
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16
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17 #ifdef LTC_CHACHA
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18
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19 int chacha_test(void)
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20 {
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21 #ifndef LTC_TEST
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22 return CRYPT_NOP;
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23 #else
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24 unsigned long len;
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25 unsigned char out[1000];
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26 /* https://tools.ietf.org/html/rfc7539#section-2.4.2 */
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27 unsigned char k[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
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28 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };
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29 unsigned char n[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00 };
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30 unsigned char ct[] = { 0x6E, 0x2E, 0x35, 0x9A, 0x25, 0x68, 0xF9, 0x80, 0x41, 0xBA, 0x07, 0x28, 0xDD, 0x0D, 0x69, 0x81,
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31 0xE9, 0x7E, 0x7A, 0xEC, 0x1D, 0x43, 0x60, 0xC2, 0x0A, 0x27, 0xAF, 0xCC, 0xFD, 0x9F, 0xAE, 0x0B,
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32 0xF9, 0x1B, 0x65, 0xC5, 0x52, 0x47, 0x33, 0xAB, 0x8F, 0x59, 0x3D, 0xAB, 0xCD, 0x62, 0xB3, 0x57,
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33 0x16, 0x39, 0xD6, 0x24, 0xE6, 0x51, 0x52, 0xAB, 0x8F, 0x53, 0x0C, 0x35, 0x9F, 0x08, 0x61, 0xD8,
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34 0x07, 0xCA, 0x0D, 0xBF, 0x50, 0x0D, 0x6A, 0x61, 0x56, 0xA3, 0x8E, 0x08, 0x8A, 0x22, 0xB6, 0x5E,
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35 0x52, 0xBC, 0x51, 0x4D, 0x16, 0xCC, 0xF8, 0x06, 0x81, 0x8C, 0xE9, 0x1A, 0xB7, 0x79, 0x37, 0x36,
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36 0x5A, 0xF9, 0x0B, 0xBF, 0x74, 0xA3, 0x5B, 0xE6, 0xB4, 0x0B, 0x8E, 0xED, 0xF2, 0x78, 0x5E, 0x42,
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37 0x87, 0x4D };
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38 char pt[] = "Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it.";
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39 chacha_state st;
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40 int err;
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41
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42 len = strlen(pt);
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43 /* crypt piece by piece */
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44 if ((err = chacha_setup(&st, k, sizeof(k), 20)) != CRYPT_OK) return err;
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45 if ((err = chacha_ivctr32(&st, n, sizeof(n), 1)) != CRYPT_OK) return err;
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46 if ((err = chacha_crypt(&st, (unsigned char*)pt, 35, out)) != CRYPT_OK) return err;
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47 if ((err = chacha_crypt(&st, (unsigned char*)pt + 35, 35, out + 35)) != CRYPT_OK) return err;
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48 if ((err = chacha_crypt(&st, (unsigned char*)pt + 70, 5, out + 70)) != CRYPT_OK) return err;
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49 if ((err = chacha_crypt(&st, (unsigned char*)pt + 75, 5, out + 75)) != CRYPT_OK) return err;
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50 if ((err = chacha_crypt(&st, (unsigned char*)pt + 80, len - 80, out + 80)) != CRYPT_OK) return err;
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51 if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV1", 1)) return CRYPT_FAIL_TESTVECTOR;
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52 /* crypt in one go */
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53 if ((err = chacha_setup(&st, k, sizeof(k), 20)) != CRYPT_OK) return err;
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54 if ((err = chacha_ivctr32(&st, n, sizeof(n), 1)) != CRYPT_OK) return err;
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55 if ((err = chacha_crypt(&st, (unsigned char*)pt, len, out)) != CRYPT_OK) return err;
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56 if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV2", 1)) return CRYPT_FAIL_TESTVECTOR;
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57 /* crypt in one go - using chacha_ivctr64() */
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58 if ((err = chacha_setup(&st, k, sizeof(k), 20)) != CRYPT_OK) return err;
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59 if ((err = chacha_ivctr64(&st, n + 4, sizeof(n) - 4, 1)) != CRYPT_OK) return err;
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60 if ((err = chacha_crypt(&st, (unsigned char*)pt, len, out)) != CRYPT_OK) return err;
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61 if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV3", 1)) return CRYPT_FAIL_TESTVECTOR;
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62
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63 return CRYPT_OK;
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64 #endif
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65 }
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66
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67 #endif
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68
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69 /* ref: $Format:%D$ */
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70 /* git commit: $Format:%H$ */
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71 /* commit time: $Format:%ai$ */