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annotate libtomcrypt/src/encauth/chachapoly/chacha20poly1305_test.c @ 1715:3974f087d9c0

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Disallow leading lines before the ident for server (#102) Per RFC4253 4.2 clients must be able to process other lines of data before the version string, server behavior is not defined neither with MUST/SHOULD nor with MAY. If server process up to 50 lines too - it may cause too long hanging session with invalid/evil client that consume host resources and potentially may lead to DDoS on poor embedded boxes. Let's require first line from client to be version string and fail early if it's not - matches both RFC and real OpenSSH behavior.
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Mon, 15 Jun 2020 18:22:18 +0500
parents 6dba84798cd5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1471
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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 #include "tomcrypt.h"
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11
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12 #ifdef LTC_CHACHA20POLY1305_MODE
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13
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14 int chacha20poly1305_test(void)
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15 {
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16 #ifndef LTC_TEST
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17 return CRYPT_NOP;
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18 #else
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19 chacha20poly1305_state st1, st2;
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20 unsigned char k[] = { 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f };
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21 unsigned char i12[] = { 0x07, 0x00, 0x00, 0x00, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47 };
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22 unsigned char i8[] = { 0x07, 0x00, 0x00, 0x00, 0x40, 0x41, 0x42, 0x43 };
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23 unsigned char aad[] = { 0x50, 0x51, 0x52, 0x53, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7 };
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24 unsigned char enc[] = { 0xD3, 0x1A, 0x8D, 0x34, 0x64, 0x8E, 0x60, 0xDB, 0x7B, 0x86, 0xAF, 0xBC, 0x53, 0xEF, 0x7E, 0xC2,
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25 0xA4, 0xAD, 0xED, 0x51, 0x29, 0x6E, 0x08, 0xFE, 0xA9, 0xE2, 0xB5, 0xA7, 0x36, 0xEE, 0x62, 0xD6,
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26 0x3D, 0xBE, 0xA4, 0x5E, 0x8C, 0xA9, 0x67, 0x12, 0x82, 0xFA, 0xFB, 0x69, 0xDA, 0x92, 0x72, 0x8B,
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27 0x1A, 0x71, 0xDE, 0x0A, 0x9E, 0x06, 0x0B, 0x29, 0x05, 0xD6, 0xA5, 0xB6, 0x7E, 0xCD, 0x3B, 0x36,
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28 0x92, 0xDD, 0xBD, 0x7F, 0x2D, 0x77, 0x8B, 0x8C, 0x98, 0x03, 0xAE, 0xE3, 0x28, 0x09, 0x1B, 0x58,
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29 0xFA, 0xB3, 0x24, 0xE4, 0xFA, 0xD6, 0x75, 0x94, 0x55, 0x85, 0x80, 0x8B, 0x48, 0x31, 0xD7, 0xBC,
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30 0x3F, 0xF4, 0xDE, 0xF0, 0x8E, 0x4B, 0x7A, 0x9D, 0xE5, 0x76, 0xD2, 0x65, 0x86, 0xCE, 0xC6, 0x4B,
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31 0x61, 0x16 };
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32 unsigned char tag[] = { 0x1A, 0xE1, 0x0B, 0x59, 0x4F, 0x09, 0xE2, 0x6A, 0x7E, 0x90, 0x2E, 0xCB, 0xD0, 0x60, 0x06, 0x91 };
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33 char m[] = "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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34 unsigned long mlen = strlen(m);
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35 unsigned long len;
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36 unsigned char rfc7905_pt[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };
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37 unsigned char rfc7905_enc[] = { 0xE4, 0x62, 0x85, 0xB4, 0x29, 0x95, 0x34, 0x96, 0xAB, 0xFB, 0x67, 0xCD, 0xAE, 0xAC, 0x94, 0x1E };
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38 unsigned char rfc7905_tag[] = { 0x16, 0x2C, 0x92, 0x48, 0x2A, 0xDB, 0xD3, 0x5D, 0x48, 0xBE, 0xC6, 0xFF, 0x10, 0x9C, 0xBA, 0xE4 };
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39 unsigned char ct[1000], pt[1000], emac[16], dmac[16];
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40 int err;
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41
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42 /* encrypt IV 96bit */
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43 if ((err = chacha20poly1305_init(&st1, k, sizeof(k))) != CRYPT_OK) return err;
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44 if ((err = chacha20poly1305_setiv(&st1, i12, sizeof(i12))) != CRYPT_OK) return err;
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45 if ((err = chacha20poly1305_add_aad(&st1, aad, sizeof(aad))) != CRYPT_OK) return err;
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46 /* encrypt piece by piece */
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47 if ((err = chacha20poly1305_encrypt(&st1, (unsigned char *)m, 25, ct)) != CRYPT_OK) return err;
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48 if ((err = chacha20poly1305_encrypt(&st1, (unsigned char *)m + 25, 10, ct + 25)) != CRYPT_OK) return err;
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49 if ((err = chacha20poly1305_encrypt(&st1, (unsigned char *)m + 35, 35, ct + 35)) != CRYPT_OK) return err;
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50 if ((err = chacha20poly1305_encrypt(&st1, (unsigned char *)m + 70, 5, ct + 70)) != CRYPT_OK) return err;
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51 if ((err = chacha20poly1305_encrypt(&st1, (unsigned char *)m + 75, 5, ct + 75)) != CRYPT_OK) return err;
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52 if ((err = chacha20poly1305_encrypt(&st1, (unsigned char *)m + 80, mlen - 80, ct + 80)) != CRYPT_OK) return err;
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53 len = sizeof(emac);
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54 if ((err = chacha20poly1305_done(&st1, emac, &len)) != CRYPT_OK) return err;
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55
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56 if (compare_testvector(ct, mlen, enc, sizeof(enc), "ENC-CT", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
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57 if (compare_testvector(emac, len, tag, sizeof(tag), "ENC-TAG", 2) != 0) return CRYPT_FAIL_TESTVECTOR;
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58
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59 /* decrypt IV 96bit */
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60 if ((err = chacha20poly1305_init(&st2, k, sizeof(k))) != CRYPT_OK) return err;
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61 if ((err = chacha20poly1305_setiv(&st2, i12, sizeof(i12))) != CRYPT_OK) return err;
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62 if ((err = chacha20poly1305_add_aad(&st2, aad, sizeof(aad))) != CRYPT_OK) return err;
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63 if ((err = chacha20poly1305_decrypt(&st2, ct, 21, pt)) != CRYPT_OK) return err;
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64 if ((err = chacha20poly1305_decrypt(&st2, ct + 21, mlen - 21, pt + 21)) != CRYPT_OK) return err;
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65 len = sizeof(dmac);
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66 if ((err = chacha20poly1305_done(&st2, dmac, &len)) != CRYPT_OK) return err;
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67
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68 if (compare_testvector(pt, mlen, m, mlen, "DEC-PT", 3) != 0) return CRYPT_FAIL_TESTVECTOR;
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69 if (compare_testvector(dmac, len, tag, sizeof(tag), "DEC-TAG", 4) != 0) return CRYPT_FAIL_TESTVECTOR;
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70
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71 /* chacha20poly1305_memory - encrypt */
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72 len = sizeof(emac);
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73 if ((err = chacha20poly1305_memory(k, sizeof(k), i12, sizeof(i12), aad, sizeof(aad), (unsigned char *)m,
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74 mlen, ct, emac, &len, CHACHA20POLY1305_ENCRYPT)) != CRYPT_OK) return err;
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75 if (compare_testvector(ct, mlen, enc, sizeof(enc), "ENC-CT2", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
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76 if (compare_testvector(emac, len, tag, sizeof(tag), "ENC-TAG2", 2) != 0) return CRYPT_FAIL_TESTVECTOR;
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77
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78 /* chacha20poly1305_memory - decrypt */
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79 len = sizeof(dmac);
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80 if ((err = chacha20poly1305_memory(k, sizeof(k), i12, sizeof(i12), aad, sizeof(aad),
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81 ct, mlen, pt, dmac, &len, CHACHA20POLY1305_DECRYPT)) != CRYPT_OK) return err;
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82 if (compare_testvector(pt, mlen, m, mlen, "DEC-PT2", 3) != 0) return CRYPT_FAIL_TESTVECTOR;
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83 if (compare_testvector(dmac, len, tag, sizeof(tag), "DEC-TAG2", 4) != 0) return CRYPT_FAIL_TESTVECTOR;
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84
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85 /* encrypt - rfc7905 */
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86 if ((err = chacha20poly1305_init(&st1, k, sizeof(k))) != CRYPT_OK) return err;
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87 if ((err = chacha20poly1305_setiv_rfc7905(&st1, i12, sizeof(i12), CONST64(0x1122334455667788))) != CRYPT_OK) return err;
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88 if ((err = chacha20poly1305_add_aad(&st1, aad, sizeof(aad))) != CRYPT_OK) return err;
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89 if ((err = chacha20poly1305_encrypt(&st1, rfc7905_pt, 16, ct)) != CRYPT_OK) return err;
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90 len = sizeof(emac);
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91 if ((err = chacha20poly1305_done(&st1, emac, &len)) != CRYPT_OK) return err;
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92
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93 if (compare_testvector(ct, 16, rfc7905_enc, 16, "ENC-CT3", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
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94 if (compare_testvector(emac, len, rfc7905_tag, 16, "ENC-TAG3", 2) != 0) return CRYPT_FAIL_TESTVECTOR;
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95
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96 /* decrypt - rfc7905 */
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97 if ((err = chacha20poly1305_init(&st1, k, sizeof(k))) != CRYPT_OK) return err;
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98 if ((err = chacha20poly1305_setiv_rfc7905(&st1, i12, sizeof(i12), CONST64(0x1122334455667788))) != CRYPT_OK) return err;
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99 if ((err = chacha20poly1305_add_aad(&st1, aad, sizeof(aad))) != CRYPT_OK) return err;
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100 if ((err = chacha20poly1305_decrypt(&st1, ct, 16, pt)) != CRYPT_OK) return err;
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101 len = sizeof(dmac);
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102 if ((err = chacha20poly1305_done(&st1, dmac, &len)) != CRYPT_OK) return err;
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103
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104 if (compare_testvector(pt, 16, rfc7905_pt, 16, "DEC-CT3", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
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105 if (compare_testvector(dmac, len, rfc7905_tag, 16, "DEC-TAG3", 2) != 0) return CRYPT_FAIL_TESTVECTOR;
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106
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107 /* encrypt IV 64bit */
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108 if ((err = chacha20poly1305_init(&st1, k, sizeof(k))) != CRYPT_OK) return err;
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109 if ((err = chacha20poly1305_setiv(&st1, i8, sizeof(i8))) != CRYPT_OK) return err;
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110 if ((err = chacha20poly1305_add_aad(&st1, aad, sizeof(aad))) != CRYPT_OK) return err;
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111 if ((err = chacha20poly1305_encrypt(&st1, (unsigned char *)m, mlen, ct)) != CRYPT_OK) return err;
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112 len = sizeof(emac);
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113 if ((err = chacha20poly1305_done(&st1, emac, &len)) != CRYPT_OK) return err;
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114
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115 /* decrypt IV 64bit */
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116 if ((err = chacha20poly1305_init(&st2, k, sizeof(k))) != CRYPT_OK) return err;
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117 if ((err = chacha20poly1305_setiv(&st2, i8, sizeof(i8))) != CRYPT_OK) return err;
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118 if ((err = chacha20poly1305_add_aad(&st2, aad, sizeof(aad))) != CRYPT_OK) return err;
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119 if ((err = chacha20poly1305_decrypt(&st2, ct, mlen, pt)) != CRYPT_OK) return err;
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120 len = sizeof(dmac);
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121 if ((err = chacha20poly1305_done(&st2, dmac, &len)) != CRYPT_OK) return err;
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122
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123 if (compare_testvector(pt, mlen, m, mlen, "DEC-PT4", 1) != 0) return CRYPT_FAIL_TESTVECTOR;
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124 if (compare_testvector(dmac, len, emac, len, "DEC-TAG4", 2) != 0) return CRYPT_FAIL_TESTVECTOR;
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125
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126 return CRYPT_OK;
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127 #endif
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128 }
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129
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130 #endif
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131
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132 /* ref: $Format:%D$ */
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133 /* git commit: $Format:%H$ */
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134 /* commit time: $Format:%ai$ */