1 2 #define TEST_NAME "chacha20" 3 #include "cmptest.h" 4 5 static 6 void tv(void) 7 { 8 static struct { 9 const char *key_hex; 10 const char *nonce_hex; 11 } tests[] 12 = { { "0000000000000000000000000000000000000000000000000000000000000000", 13 "0000000000000000" }, 14 { "0000000000000000000000000000000000000000000000000000000000000001", 15 "0000000000000000" }, 16 { "0000000000000000000000000000000000000000000000000000000000000000", 17 "0000000000000001" }, 18 { "0000000000000000000000000000000000000000000000000000000000000000", 19 "0100000000000000" }, 20 { "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 21 "0001020304050607" } }; 22 unsigned char key[crypto_stream_chacha20_KEYBYTES]; 23 unsigned char nonce[crypto_stream_chacha20_NONCEBYTES]; 24 unsigned char *part; 25 unsigned char out[160]; 26 unsigned char zero[160]; 27 char out_hex[160 * 2 + 1]; 28 size_t i = 0U; 29 size_t plen; 30 31 memset(zero, 0, sizeof zero); 32 do { 33 sodium_hex2bin((unsigned char *)key, sizeof key, tests[i].key_hex, 34 strlen(tests[i].key_hex), NULL, NULL, NULL); 35 sodium_hex2bin(nonce, sizeof nonce, tests[i].nonce_hex, 36 strlen(tests[i].nonce_hex), NULL, NULL, NULL); 37 crypto_stream_chacha20(out, sizeof out, nonce, key); 38 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 39 printf("[%s]\n", out_hex); 40 for (plen = 1U; plen < sizeof out; plen++) { 41 part = (unsigned char *) sodium_malloc(plen); 42 crypto_stream_chacha20_xor(part, out, plen, nonce, key); 43 if (memcmp(part, zero, plen) != 0) { 44 printf("Failed with length %lu\n", (unsigned long) plen); 45 } 46 sodium_free(part); 47 } 48 } while (++i < (sizeof tests) / (sizeof tests[0])); 49 assert(66 <= sizeof out); 50 for (plen = 1U; plen < 66; plen += 3) { 51 memset(out, (int) (plen & 0xff), sizeof out); 52 crypto_stream_chacha20(out, plen, nonce, key); 53 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 54 printf("[%s]\n", out_hex); 55 } 56 randombytes_buf(out, sizeof out); 57 crypto_stream_chacha20(out, sizeof out, nonce, key); 58 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 59 printf("[%s]\n", out_hex); 60 61 assert(crypto_stream_chacha20(out, 0U, nonce, key) == 0); 62 assert(crypto_stream_chacha20_xor(out, out, 0U, nonce, key) == 0); 63 assert(crypto_stream_chacha20_xor(out, out, 0U, nonce, key) == 0); 64 assert(crypto_stream_chacha20_xor_ic(out, out, 0U, nonce, 1U, key) == 0); 65 66 memset(out, 0x42, sizeof out); 67 crypto_stream_chacha20_xor(out, out, sizeof out, nonce, key); 68 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 69 printf("[%s]\n", out_hex); 70 71 crypto_stream_chacha20_xor_ic(out, out, sizeof out, nonce, 0U, key); 72 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 73 printf("[%s]\n", out_hex); 74 75 crypto_stream_chacha20_xor_ic(out, out, sizeof out, nonce, 1U, key); 76 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 77 printf("[%s]\n", out_hex); 78 } 79 80 static 81 void tv_ietf(void) 82 { 83 static struct { 84 const char *key_hex; 85 const char *nonce_hex; 86 uint32_t ic; 87 } tests[] 88 = { { "0000000000000000000000000000000000000000000000000000000000000000", 89 "000000000000000000000000", 90 0U }, 91 { "0000000000000000000000000000000000000000000000000000000000000000", 92 "000000000000000000000000", 93 1U }, 94 { "0000000000000000000000000000000000000000000000000000000000000001", 95 "000000000000000000000000", 96 1U }, 97 { "00ff000000000000000000000000000000000000000000000000000000000000", 98 "000000000000000000000000", 99 2U }, 100 { "0000000000000000000000000000000000000000000000000000000000000000", 101 "000000000000000000000002", 102 0U }, 103 { "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 104 "000000090000004a00000000", 105 1U }, 106 { "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f", 107 "000000090000004a00000000", 108 0xffffffff }}; 109 unsigned char key[crypto_stream_chacha20_KEYBYTES]; 110 unsigned char nonce[crypto_stream_chacha20_IETF_NONCEBYTES]; 111 unsigned char *part; 112 unsigned char out[160]; 113 unsigned char zero[160]; 114 char out_hex[160 * 2 + 1]; 115 size_t i = 0U; 116 size_t plen; 117 118 memset(zero, 0, sizeof zero); 119 do { 120 sodium_hex2bin((unsigned char *)key, sizeof key, tests[i].key_hex, 121 strlen(tests[i].key_hex), ": ", NULL, NULL); 122 sodium_hex2bin(nonce, sizeof nonce, tests[i].nonce_hex, 123 strlen(tests[i].nonce_hex), ": ", NULL, NULL); 124 memset(out, 0, sizeof out); 125 crypto_stream_chacha20_ietf_xor_ic(out, out, sizeof out, nonce, tests[i].ic, key); 126 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 127 printf("[%s]\n", out_hex); 128 for (plen = 1U; plen < sizeof out; plen++) { 129 part = (unsigned char *) sodium_malloc(plen); 130 crypto_stream_chacha20_ietf_xor_ic(part, out, plen, nonce, tests[i].ic, key); 131 if (memcmp(part, zero, plen) != 0) { 132 printf("Failed with length %lu\n", (unsigned long) plen); 133 } 134 sodium_free(part); 135 } 136 } while (++i < (sizeof tests) / (sizeof tests[0])); 137 assert(66 <= sizeof out); 138 for (plen = 1U; plen < 66; plen += 3) { 139 memset(out, (int) (plen & 0xff), sizeof out); 140 crypto_stream_chacha20(out, plen, nonce, key); 141 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 142 printf("[%s]\n", out_hex); 143 } 144 randombytes_buf(out, sizeof out); 145 crypto_stream_chacha20_ietf(out, sizeof out, nonce, key); 146 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 147 printf("[%s]\n", out_hex); 148 149 assert(crypto_stream_chacha20_ietf(out, 0U, nonce, key) == 0); 150 assert(crypto_stream_chacha20_ietf_xor(out, out, 0U, nonce, key) == 0); 151 assert(crypto_stream_chacha20_ietf_xor(out, out, 0U, nonce, key) == 0); 152 assert(crypto_stream_chacha20_ietf_xor_ic(out, out, 0U, nonce, 1U, key) == 0); 153 154 memset(out, 0x42, sizeof out); 155 crypto_stream_chacha20_ietf_xor(out, out, sizeof out, nonce, key); 156 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 157 printf("[%s]\n", out_hex); 158 159 crypto_stream_chacha20_ietf_xor_ic(out, out, sizeof out, nonce, 0U, key); 160 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 161 printf("[%s]\n", out_hex); 162 163 crypto_stream_chacha20_ietf_xor_ic(out, out, sizeof out, nonce, 1U, key); 164 sodium_bin2hex(out_hex, sizeof out_hex, out, sizeof out); 165 printf("[%s]\n", out_hex); 166 } 167 168 int 169 main(void) 170 { 171 tv(); 172 tv_ietf(); 173 174 assert(crypto_stream_chacha20_keybytes() > 0U); 175 assert(crypto_stream_chacha20_keybytes() == crypto_stream_chacha20_KEYBYTES); 176 assert(crypto_stream_chacha20_noncebytes() > 0U); 177 assert(crypto_stream_chacha20_noncebytes() == crypto_stream_chacha20_NONCEBYTES); 178 assert(crypto_stream_chacha20_messagebytes_max() == crypto_stream_chacha20_MESSAGEBYTES_MAX); 179 assert(crypto_stream_chacha20_ietf_keybytes() > 0U); 180 assert(crypto_stream_chacha20_ietf_keybytes() == crypto_stream_chacha20_ietf_KEYBYTES); 181 assert(crypto_stream_chacha20_ietf_noncebytes() > 0U); 182 assert(crypto_stream_chacha20_ietf_noncebytes() == crypto_stream_chacha20_ietf_NONCEBYTES); 183 assert(crypto_stream_chacha20_ietf_messagebytes_max() == crypto_stream_chacha20_ietf_MESSAGEBYTES_MAX); 184 185 return 0; 186 } 187
Indexes created Sat Sep 20 22:09:52 GMT 2025