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| 1 | +#ifndef SECP256K1_MODULE_BATCH_TESTS_H |
| 2 | +#define SECP256K1_MODULE_BATCH_TESTS_H |
| 3 | + |
| 4 | +#include "../../../include/secp256k1_batch.h" |
| 5 | +#ifdef ENABLE_MODULE_SCHNORRSIG |
| 6 | +#include "../../../include/secp256k1_schnorrsig.h" |
| 7 | +#include "../../../include/secp256k1_schnorrsig_batch.h" |
| 8 | +#endif |
| 9 | +#ifdef ENABLE_MODULE_EXTRAKEYS |
| 10 | +#include "../../../include/secp256k1_extrakeys.h" |
| 11 | +#include "../../../include/secp256k1_tweak_check_batch.h" |
| 12 | +#endif |
| 13 | + |
| 14 | +/* Tests for the equality of two sha256 structs. This function only produces a |
| 15 | + * correct result if an integer multiple of 64 many bytes have been written |
| 16 | + * into the hash functions. */ |
| 17 | +void test_batch_sha256_eq(const secp256k1_sha256 *sha1, const secp256k1_sha256 *sha2) { |
| 18 | + /* Is buffer fully consumed? */ |
| 19 | + CHECK((sha1->bytes & 0x3F) == 0); |
| 20 | + |
| 21 | + CHECK(sha1->bytes == sha2->bytes); |
| 22 | + CHECK(secp256k1_memcmp_var(sha1->s, sha2->s, sizeof(sha1->s)) == 0); |
| 23 | +} |
| 24 | + |
| 25 | +/* Checks that hash initialized by secp256k1_batch_sha256_tagged has the |
| 26 | + * expected state. */ |
| 27 | +void test_batch_sha256_tagged(void) { |
| 28 | + unsigned char tag[13] = "BIP0340/batch"; |
| 29 | + secp256k1_sha256 sha; |
| 30 | + secp256k1_sha256 sha_optimized; |
| 31 | + |
| 32 | + secp256k1_sha256_initialize_tagged(&sha, (unsigned char *) tag, sizeof(tag)); |
| 33 | + secp256k1_batch_sha256_tagged(&sha_optimized); |
| 34 | + test_batch_sha256_eq(&sha, &sha_optimized); |
| 35 | +} |
| 36 | + |
| 37 | +#define N_SIGS 10 |
| 38 | +#define N_TWK_CHECKS 10 |
| 39 | +#define N_TERMS (N_TWK_CHECKS + 2*N_SIGS) |
| 40 | +void test_batch_api(void) { |
| 41 | + |
| 42 | +#ifdef ENABLE_MODULE_EXTRAKEYS |
| 43 | + unsigned char sk[32]; |
| 44 | + secp256k1_keypair keypair; |
| 45 | + secp256k1_xonly_pubkey pk; |
| 46 | + /* xonly pubkey tweak checks data */ |
| 47 | + unsigned char tweaked_pk[N_TWK_CHECKS][32]; |
| 48 | + int tweaked_pk_parity[N_TWK_CHECKS]; |
| 49 | + unsigned char tweak[N_TWK_CHECKS][32]; |
| 50 | + secp256k1_pubkey tmp_pk; |
| 51 | + secp256k1_xonly_pubkey tmp_xonly_pk; |
| 52 | + size_t i; |
| 53 | +#endif |
| 54 | + |
| 55 | +#ifdef ENABLE_MODULE_SCHNORRSIG |
| 56 | + /* schnorr verification data */ |
| 57 | + unsigned char msg[N_SIGS][32]; |
| 58 | + unsigned char sig[N_SIGS][64]; |
| 59 | +#endif |
| 60 | + /* context and batch setup */ |
| 61 | + secp256k1_context *none = secp256k1_context_create(SECP256K1_CONTEXT_NONE); |
| 62 | + secp256k1_context *sign = secp256k1_context_create(SECP256K1_CONTEXT_SIGN); |
| 63 | + secp256k1_context *vrfy = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY); |
| 64 | + secp256k1_context *both = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY); |
| 65 | + secp256k1_context *sttc = secp256k1_context_clone(secp256k1_context_no_precomp); |
| 66 | + secp256k1_batch *batch_none; |
| 67 | + secp256k1_batch *batch_sign; |
| 68 | + secp256k1_batch *batch_vrfy; |
| 69 | + secp256k1_batch *batch_both; |
| 70 | + secp256k1_batch *batch_sttc; |
| 71 | + unsigned char aux_rand16[32]; |
| 72 | + int ecount; |
| 73 | + |
| 74 | + secp256k1_context_set_error_callback(none, counting_illegal_callback_fn, &ecount); |
| 75 | + secp256k1_context_set_error_callback(sign, counting_illegal_callback_fn, &ecount); |
| 76 | + secp256k1_context_set_error_callback(vrfy, counting_illegal_callback_fn, &ecount); |
| 77 | + secp256k1_context_set_error_callback(both, counting_illegal_callback_fn, &ecount); |
| 78 | + secp256k1_context_set_error_callback(sttc, counting_illegal_callback_fn, &ecount); |
| 79 | + secp256k1_context_set_illegal_callback(none, counting_illegal_callback_fn, &ecount); |
| 80 | + secp256k1_context_set_illegal_callback(sign, counting_illegal_callback_fn, &ecount); |
| 81 | + secp256k1_context_set_illegal_callback(vrfy, counting_illegal_callback_fn, &ecount); |
| 82 | + secp256k1_context_set_illegal_callback(both, counting_illegal_callback_fn, &ecount); |
| 83 | + secp256k1_context_set_illegal_callback(sttc, counting_illegal_callback_fn, &ecount); |
| 84 | + |
| 85 | + /* 16 byte auxiliary randomness */ |
| 86 | + secp256k1_testrand256(aux_rand16); |
| 87 | + memset(&aux_rand16[16], 0, 16); |
| 88 | + |
| 89 | +#ifdef ENABLE_MODULE_EXTRAKEYS |
| 90 | + /* generate keypair data */ |
| 91 | + secp256k1_testrand256(sk); |
| 92 | + CHECK(secp256k1_keypair_create(sign, &keypair, sk) == 1); |
| 93 | + CHECK(secp256k1_keypair_xonly_pub(sign, &pk, NULL, &keypair) == 1); |
| 94 | + |
| 95 | + /* generate N_TWK_CHECKS tweak check data (tweaked_pk, tweaked_pk_parity, tweak) */ |
| 96 | + for (i = 0; i < N_TWK_CHECKS; i++) { |
| 97 | + secp256k1_testrand256(tweak[i]); |
| 98 | + CHECK(secp256k1_xonly_pubkey_tweak_add(vrfy, &tmp_pk, &pk, tweak[i])); |
| 99 | + CHECK(secp256k1_xonly_pubkey_from_pubkey(vrfy, &tmp_xonly_pk, &tweaked_pk_parity[i], &tmp_pk)); |
| 100 | + CHECK(secp256k1_xonly_pubkey_serialize(vrfy, tweaked_pk[i], &tmp_xonly_pk)); |
| 101 | + CHECK(secp256k1_xonly_pubkey_tweak_add_check(vrfy, tweaked_pk[i], tweaked_pk_parity[i], &pk, tweak[i])); |
| 102 | + } |
| 103 | +#endif |
| 104 | + |
| 105 | +#ifdef ENABLE_MODULE_SCHNORRSIG |
| 106 | + /* generate N_SIGS schnorr verify data (msg, sig) */ |
| 107 | + for (i = 0; i < N_SIGS; i++) { |
| 108 | + secp256k1_testrand256(msg[i]); |
| 109 | + CHECK(secp256k1_schnorrsig_sign32(sign, sig[i], msg[i], &keypair, NULL) == 1); |
| 110 | + CHECK(secp256k1_schnorrsig_verify(vrfy, sig[i], msg[i], sizeof(msg[i]), &pk)); |
| 111 | + } |
| 112 | +#endif |
| 113 | + |
| 114 | + /** main test body **/ |
| 115 | + /* batch_create tests */ |
| 116 | + ecount = 0; |
| 117 | + batch_none = secp256k1_batch_create(none, 1, NULL); |
| 118 | + CHECK(batch_none != NULL); |
| 119 | + CHECK(ecount == 0); |
| 120 | + /* 2*N_SIGS since one schnorrsig creates two scalar-point pair in batch */ |
| 121 | + batch_sign = secp256k1_batch_create(sign, 2*N_SIGS, NULL); |
| 122 | + CHECK(batch_sign != NULL); |
| 123 | + CHECK(ecount == 0); |
| 124 | + batch_vrfy = secp256k1_batch_create(vrfy, N_TWK_CHECKS - 1, aux_rand16); |
| 125 | + CHECK(batch_vrfy != NULL); |
| 126 | + CHECK(ecount == 0); |
| 127 | + batch_both = secp256k1_batch_create(both, N_TERMS/4, aux_rand16); |
| 128 | + CHECK(batch_both != NULL); |
| 129 | + CHECK(ecount == 0); |
| 130 | + /* ARG_CHECK(max_terms != 0) in `batch_create` should fail*/ |
| 131 | + batch_sttc = secp256k1_batch_create(sttc, 0, NULL); |
| 132 | + CHECK(batch_sttc == NULL); |
| 133 | + CHECK(ecount == 1); |
| 134 | + |
| 135 | +#ifdef ENABLE_MODULE_SCHNORRSIG |
| 136 | + ecount = 0; |
| 137 | + for (i = 0; i < N_SIGS; i++) { |
| 138 | + CHECK(secp256k1_batch_usable(sign, batch_sign) == 1); |
| 139 | + CHECK(ecount == 0); |
| 140 | + CHECK(secp256k1_batch_add_schnorrsig(sign, batch_sign, sig[i], msg[i], sizeof(msg[i]), &pk) == 1); |
| 141 | + CHECK(ecount == 0); |
| 142 | + } |
| 143 | +#endif |
| 144 | + |
| 145 | +#ifdef ENABLE_MODULE_EXTRAKEYS |
| 146 | + ecount = 0; |
| 147 | + for (i = 0; i < N_TWK_CHECKS; i++) { |
| 148 | + CHECK(secp256k1_batch_usable(vrfy, batch_vrfy)); |
| 149 | + CHECK(ecount == 0); |
| 150 | + CHECK(secp256k1_batch_add_xonlypub_tweak_check(vrfy, batch_vrfy, tweaked_pk[i], tweaked_pk_parity[i], &pk, tweak[i])); |
| 151 | + CHECK(ecount == 0); |
| 152 | + } |
| 153 | +#endif |
| 154 | + |
| 155 | +#if defined(ENABLE_MODULE_SCHNORRSIG) && defined(ENABLE_MODULE_EXTRAKEYS) |
| 156 | + /* secp256k1_batch_add_tests for batch_both */ |
| 157 | + ecount = 0; |
| 158 | + for (i = 0; i < N_SIGS; i++) { |
| 159 | + CHECK(secp256k1_batch_usable(both, batch_both) == 1); |
| 160 | + CHECK(ecount == 0); |
| 161 | + CHECK(secp256k1_batch_add_schnorrsig(both, batch_both, sig[i], msg[i], sizeof(msg[i]), &pk) == 1); |
| 162 | + CHECK(ecount == 0); |
| 163 | + } |
| 164 | + for (i = 0; i < N_TWK_CHECKS; i++) { |
| 165 | + CHECK(secp256k1_batch_usable(both, batch_both)); |
| 166 | + CHECK(ecount == 0); |
| 167 | + CHECK(secp256k1_batch_add_xonlypub_tweak_check(both, batch_both, tweaked_pk[i], tweaked_pk_parity[i], &pk, tweak[i])); |
| 168 | + CHECK(ecount == 0); |
| 169 | + } |
| 170 | +#endif |
| 171 | + |
| 172 | + /* batch_verify tests */ |
| 173 | + ecount = 0; |
| 174 | + CHECK(secp256k1_batch_verify(none, batch_none) == 1); |
| 175 | + CHECK(ecount == 0); |
| 176 | + CHECK(secp256k1_batch_verify(sign, batch_sign) == 1); |
| 177 | + CHECK(ecount == 0); |
| 178 | + CHECK(secp256k1_batch_verify(vrfy, batch_vrfy) == 1); |
| 179 | + CHECK(ecount == 0); |
| 180 | + CHECK(secp256k1_batch_verify(both, batch_both) == 1); |
| 181 | + CHECK(ecount == 0); |
| 182 | + CHECK(secp256k1_batch_verify(sttc, NULL) == 0); |
| 183 | + CHECK(ecount == 1); |
| 184 | + |
| 185 | + ecount = 0; |
| 186 | + secp256k1_batch_destroy(none, batch_none); |
| 187 | + CHECK(ecount == 0); |
| 188 | + secp256k1_batch_destroy(sign, batch_sign); |
| 189 | + CHECK(ecount == 0); |
| 190 | + secp256k1_batch_destroy(vrfy, batch_vrfy); |
| 191 | + CHECK(ecount == 0); |
| 192 | + secp256k1_batch_destroy(both, batch_both); |
| 193 | + CHECK(ecount == 0); |
| 194 | + secp256k1_batch_destroy(sttc, NULL); |
| 195 | + CHECK(ecount == 0); |
| 196 | + |
| 197 | + secp256k1_context_destroy(none); |
| 198 | + secp256k1_context_destroy(sign); |
| 199 | + secp256k1_context_destroy(vrfy); |
| 200 | + secp256k1_context_destroy(both); |
| 201 | + secp256k1_context_destroy(sttc); |
| 202 | +} |
| 203 | +#undef N_SIGS |
| 204 | +#undef N_TWK_CHECKS |
| 205 | +#undef N_TERMS |
| 206 | + |
| 207 | + |
| 208 | +void run_batch_tests(void) { |
| 209 | + test_batch_api(); |
| 210 | + test_batch_sha256_tagged(); |
| 211 | +} |
| 212 | + |
| 213 | +#endif /* SECP256K1_MODULE_BATCH_TESTS_H */ |
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