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go-ethereum/crypto/secp256k1/libsecp256k1/src/modules/musig/tests_impl.h
Marius van der Wijden 5606cbc710
crypto/secp256k1: update libsecp256k1 (#31242) 
Updates the libsecp256k1 dependency to commit:
c0d9480fbbf8eccbd4be23ed27f6f2af6f3b211e

PR:
```
BenchmarkSign-24    	   57756	     21214 ns/op	     164 B/op	       3 allocs/op
BenchmarkRecover-24    	   37156	     33044 ns/op	      80 B/op	       1 allocs/op
BenchmarkEcrecoverSignature-24    	   36889	     32935 ns/op	      80 B/op	       1 allocs/op
BenchmarkVerifySignature-24    	   41163	     29207 ns/op	       0 B/op	       0 allocs/op
BenchmarkDecompressPubkey-24    	  318624	      4062 ns/op	     304 B/op	       6 allocs/op
```

Master:
```
BenchmarkSign-24    	   34509	     35330 ns/op	     164 B/op	       3 allocs/op
BenchmarkRecover-24    	   25418	     47725 ns/op	      80 B/op	       1 allocs/op
BenchmarkEcrecoverSignature-24    	   25735	     47591 ns/op	      80 B/op	       1 allocs/op
BenchmarkVerifySignature-24    	   29108	     41097 ns/op	       0 B/op	       0 allocs/op
BenchmarkDecompressPubkey-24    	  294747	      4143 ns/op	     304 B/op	       6 allocs/op
```

Performance seems to be improved significantly:
```
Sign-24      34.86µ ± 3%   21.66µ ± 2%  -37.86% (p=0.000 n=10)
Recover-24   46.14µ ± 3%   33.24µ ± 2%  -27.95% (p=0.000 n=10)
```
2025-03-12 12:21:50 +01:00

1143 lines
57 KiB
C
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/***********************************************************************
* Distributed under the MIT software license, see the accompanying *
* file COPYING or https://www.opensource.org/licenses/mit-license.php.*
***********************************************************************/
#ifndef SECP256K1_MODULE_MUSIG_TESTS_IMPL_H
#define SECP256K1_MODULE_MUSIG_TESTS_IMPL_H
#include <stdlib.h>
#include <string.h>
#include "../../../include/secp256k1.h"
#include "../../../include/secp256k1_extrakeys.h"
#include "../../../include/secp256k1_musig.h"
#include "session.h"
#include "keyagg.h"
#include "../../scalar.h"
#include "../../field.h"
#include "../../group.h"
#include "../../hash.h"
#include "../../util.h"
#include "vectors.h"
static int create_keypair_and_pk(secp256k1_keypair *keypair, secp256k1_pubkey *pk, const unsigned char *sk) {
int ret;
secp256k1_keypair keypair_tmp;
ret = secp256k1_keypair_create(CTX, &keypair_tmp, sk);
ret &= secp256k1_keypair_pub(CTX, pk, &keypair_tmp);
if (keypair != NULL) {
*keypair = keypair_tmp;
}
return ret;
}
/* Just a simple (non-tweaked) 2-of-2 MuSig aggregate, sign, verify
* test. */
static void musig_simple_test(void) {
unsigned char sk[2][32];
secp256k1_keypair keypair[2];
secp256k1_musig_pubnonce pubnonce[2];
const secp256k1_musig_pubnonce *pubnonce_ptr[2];
secp256k1_musig_aggnonce aggnonce;
unsigned char msg[32];
secp256k1_xonly_pubkey agg_pk;
secp256k1_musig_keyagg_cache keyagg_cache;
unsigned char session_secrand[2][32];
secp256k1_musig_secnonce secnonce[2];
secp256k1_pubkey pk[2];
const secp256k1_pubkey *pk_ptr[2];
secp256k1_musig_partial_sig partial_sig[2];
const secp256k1_musig_partial_sig *partial_sig_ptr[2];
unsigned char final_sig[64];
secp256k1_musig_session session;
int i;
testrand256(msg);
for (i = 0; i < 2; i++) {
testrand256(sk[i]);
pk_ptr[i] = &pk[i];
pubnonce_ptr[i] = &pubnonce[i];
partial_sig_ptr[i] = &partial_sig[i];
CHECK(create_keypair_and_pk(&keypair[i], &pk[i], sk[i]));
if (i == 0) {
testrand256(session_secrand[i]);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[i], &pubnonce[i], session_secrand[i], sk[i], &pk[i], NULL, NULL, NULL) == 1);
} else {
uint64_t nonrepeating_cnt = 0;
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[i], &pubnonce[i], nonrepeating_cnt, &keypair[i], NULL, NULL, NULL) == 1);
}
}
CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 2) == 1);
CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1);
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &keyagg_cache) == 1);
for (i = 0; i < 2; i++) {
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[i], &secnonce[i], &keypair[i], &keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[i], &pubnonce[i], &pk[i], &keyagg_cache, &session) == 1);
}
CHECK(secp256k1_musig_partial_sig_agg(CTX, final_sig, &session, partial_sig_ptr, 2) == 1);
CHECK(secp256k1_schnorrsig_verify(CTX, final_sig, msg, sizeof(msg), &agg_pk) == 1);
}
/* Generate two pubnonces such that both group elements of their sum (calculated
* with secp256k1_musig_sum_pubnonces) are infinity. */
static void pubnonce_summing_to_inf(secp256k1_musig_pubnonce *pubnonce) {
secp256k1_ge ge[2];
int i;
secp256k1_gej summed_pubnonces[2];
const secp256k1_musig_pubnonce *pubnonce_ptr[2];
testutil_random_ge_test(&ge[0]);
testutil_random_ge_test(&ge[1]);
for (i = 0; i < 2; i++) {
secp256k1_musig_pubnonce_save(&pubnonce[i], ge);
pubnonce_ptr[i] = &pubnonce[i];
secp256k1_ge_neg(&ge[0], &ge[0]);
secp256k1_ge_neg(&ge[1], &ge[1]);
}
secp256k1_musig_sum_pubnonces(CTX, summed_pubnonces, pubnonce_ptr, 2);
CHECK(secp256k1_gej_is_infinity(&summed_pubnonces[0]));
CHECK(secp256k1_gej_is_infinity(&summed_pubnonces[1]));
}
int memcmp_and_randomize(unsigned char *value, const unsigned char *expected, size_t len) {
int ret;
size_t i;
ret = secp256k1_memcmp_var(value, expected, len);
for (i = 0; i < len; i++) {
value[i] = testrand_bits(8);
}
return ret;
}
static void musig_api_tests(void) {
secp256k1_musig_partial_sig partial_sig[2];
const secp256k1_musig_partial_sig *partial_sig_ptr[2];
secp256k1_musig_partial_sig invalid_partial_sig;
const secp256k1_musig_partial_sig *invalid_partial_sig_ptr[2];
unsigned char pre_sig[64];
unsigned char buf[32];
unsigned char sk[2][32];
secp256k1_keypair keypair[2];
secp256k1_keypair invalid_keypair;
unsigned char max64[64];
unsigned char zeros132[132] = { 0 };
unsigned char session_secrand[2][32];
unsigned char nonrepeating_cnt = 0;
secp256k1_musig_secnonce secnonce[2];
secp256k1_musig_secnonce secnonce_tmp;
secp256k1_musig_secnonce invalid_secnonce;
secp256k1_musig_pubnonce pubnonce[2];
const secp256k1_musig_pubnonce *pubnonce_ptr[2];
unsigned char pubnonce_ser[66];
secp256k1_musig_pubnonce inf_pubnonce[2];
const secp256k1_musig_pubnonce *inf_pubnonce_ptr[2];
secp256k1_musig_pubnonce invalid_pubnonce;
const secp256k1_musig_pubnonce *invalid_pubnonce_ptr[1];
secp256k1_musig_aggnonce aggnonce;
unsigned char aggnonce_ser[66];
unsigned char msg[32];
secp256k1_xonly_pubkey agg_pk;
secp256k1_pubkey full_agg_pk;
secp256k1_musig_keyagg_cache keyagg_cache;
secp256k1_musig_keyagg_cache invalid_keyagg_cache;
secp256k1_musig_session session;
secp256k1_musig_session invalid_session;
secp256k1_pubkey pk[2];
const secp256k1_pubkey *pk_ptr[2];
secp256k1_pubkey invalid_pk;
const secp256k1_pubkey *invalid_pk_ptr2[2];
const secp256k1_pubkey *invalid_pk_ptr3[3];
unsigned char tweak[32];
int i;
/** setup **/
memset(max64, 0xff, sizeof(max64));
memset(&invalid_keypair, 0, sizeof(invalid_keypair));
memset(&invalid_pk, 0, sizeof(invalid_pk));
memset(&invalid_secnonce, 0, sizeof(invalid_secnonce));
memset(&invalid_partial_sig, 0, sizeof(invalid_partial_sig));
pubnonce_summing_to_inf(inf_pubnonce);
/* Simulate structs being uninitialized by setting it to 0s. We don't want
* to produce undefined behavior by actually providing uninitialized
* structs. */
memset(&invalid_keyagg_cache, 0, sizeof(invalid_keyagg_cache));
memset(&invalid_pk, 0, sizeof(invalid_pk));
memset(&invalid_pubnonce, 0, sizeof(invalid_pubnonce));
memset(&invalid_session, 0, sizeof(invalid_session));
testrand256(msg);
testrand256(tweak);
for (i = 0; i < 2; i++) {
pk_ptr[i] = &pk[i];
invalid_pk_ptr2[i] = &invalid_pk;
invalid_pk_ptr3[i] = &pk[i];
pubnonce_ptr[i] = &pubnonce[i];
inf_pubnonce_ptr[i] = &inf_pubnonce[i];
partial_sig_ptr[i] = &partial_sig[i];
invalid_partial_sig_ptr[i] = &partial_sig[i];
testrand256(session_secrand[i]);
testrand256(sk[i]);
CHECK(create_keypair_and_pk(&keypair[i], &pk[i], sk[i]));
}
invalid_pubnonce_ptr[0] = &invalid_pubnonce;
invalid_partial_sig_ptr[0] = &invalid_partial_sig;
/* invalid_pk_ptr3 has two valid, one invalid pk, which is important to test
* musig_pubkey_agg */
invalid_pk_ptr3[2] = &invalid_pk;
/** main test body **/
/** Key aggregation **/
CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 2) == 1);
CHECK(secp256k1_musig_pubkey_agg(CTX, NULL, &keyagg_cache, pk_ptr, 2) == 1);
CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, NULL, pk_ptr, 2) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, NULL, 2));
CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, invalid_pk_ptr2, 2));
CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, invalid_pk_ptr3, 3));
CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 0));
CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, NULL, 0));
CHECK(memcmp_and_randomize(agg_pk.data, zeros132, sizeof(agg_pk.data)) == 0);
CHECK(secp256k1_musig_pubkey_agg(CTX, &agg_pk, &keyagg_cache, pk_ptr, 2) == 1);
/* pubkey_get */
CHECK(secp256k1_musig_pubkey_get(CTX, &full_agg_pk, &keyagg_cache) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_get(CTX, NULL, &keyagg_cache));
CHECK_ILLEGAL(CTX, secp256k1_musig_pubkey_get(CTX, &full_agg_pk, NULL));
CHECK(secp256k1_memcmp_var(&full_agg_pk, zeros132, sizeof(full_agg_pk)) == 0);
/** Tweaking **/
{
int (*tweak_func[2]) (const secp256k1_context* ctx, secp256k1_pubkey *output_pubkey, secp256k1_musig_keyagg_cache *keyagg_cache, const unsigned char *tweak32);
tweak_func[0] = secp256k1_musig_pubkey_ec_tweak_add;
tweak_func[1] = secp256k1_musig_pubkey_xonly_tweak_add;
for (i = 0; i < 2; i++) {
secp256k1_pubkey tmp_output_pk;
secp256k1_musig_keyagg_cache tmp_keyagg_cache = keyagg_cache;
CHECK((*tweak_func[i])(CTX, &tmp_output_pk, &tmp_keyagg_cache, tweak) == 1);
/* Reset keyagg_cache */
tmp_keyagg_cache = keyagg_cache;
CHECK((*tweak_func[i])(CTX, NULL, &tmp_keyagg_cache, tweak) == 1);
tmp_keyagg_cache = keyagg_cache;
CHECK_ILLEGAL(CTX, (*tweak_func[i])(CTX, &tmp_output_pk, NULL, tweak));
CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0);
tmp_keyagg_cache = keyagg_cache;
CHECK_ILLEGAL(CTX, (*tweak_func[i])(CTX, &tmp_output_pk, &tmp_keyagg_cache, NULL));
CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0);
tmp_keyagg_cache = keyagg_cache;
CHECK((*tweak_func[i])(CTX, &tmp_output_pk, &tmp_keyagg_cache, max64) == 0);
CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0);
tmp_keyagg_cache = keyagg_cache;
/* Uninitialized keyagg_cache */
CHECK_ILLEGAL(CTX, (*tweak_func[i])(CTX, &tmp_output_pk, &invalid_keyagg_cache, tweak));
CHECK(memcmp_and_randomize(tmp_output_pk.data, zeros132, sizeof(tmp_output_pk.data)) == 0);
}
}
/** Session creation with nonce_gen **/
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64) == 1);
/* nonce_gen, if successful, sets session_secrand to the zero array, which
* makes subsequent nonce_gen calls with the same session_secrand fail. So
* check that session_secrand is indeed the zero array and fill it with
* random values again. */
CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0);
CHECK_ILLEGAL(STATIC_CTX, secp256k1_musig_nonce_gen(STATIC_CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, NULL, &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], NULL, session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], NULL, sk[0], &pk[0], msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
/* session_secrand = 0 is disallowed because it indicates a faulty RNG */
memcpy(&session_secrand[0], zeros132, sizeof(session_secrand[0]));
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], zeros132, sk[0], &pk[0], msg, &keyagg_cache, max64) == 0);
CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0);
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], NULL, &pk[0], msg, &keyagg_cache, max64) == 1);
CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0);
/* invalid seckey */
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], max64, &pk[0], msg, &keyagg_cache, max64) == 0);
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], NULL, msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &invalid_pk, msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], NULL, &keyagg_cache, max64) == 1);
CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, NULL, max64) == 1);
CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &invalid_keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk[0], &pk[0], msg, &keyagg_cache, NULL) == 1);
CHECK(memcmp_and_randomize(session_secrand[0], zeros132, sizeof(session_secrand[0])) == 0);
/* Every in-argument except session_secrand and pubkey can be NULL */
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], NULL, &pk[0], NULL, NULL, NULL) == 1);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[1], &pubnonce[1], session_secrand[1], sk[1], &pk[1], NULL, NULL, NULL) == 1);
/** Session creation with nonce_gen_counter **/
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64) == 1);
CHECK_ILLEGAL(STATIC_CTX, secp256k1_musig_nonce_gen_counter(STATIC_CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, NULL, &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], NULL, nonrepeating_cnt, &keypair[0], msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
/* using nonce_gen_counter requires keypair */
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, NULL, msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
/* invalid keypair */
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &invalid_keypair, msg, &keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], NULL, &keyagg_cache, max64) == 1);
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, NULL, max64) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], msg, &invalid_keyagg_cache, max64));
CHECK(memcmp_and_randomize(secnonce[0].data, zeros132, sizeof(secnonce[0].data)) == 0);
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt,&keypair[0], msg, &keyagg_cache, NULL) == 1);
/* Every in-argument except nonrepeating_cnt and keypair can be NULL */
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[0], &pubnonce[0], nonrepeating_cnt, &keypair[0], NULL, NULL, NULL) == 1);
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce[1], &pubnonce[1], nonrepeating_cnt, &keypair[1], NULL, NULL, NULL) == 1);
/** Serialize and parse public nonces **/
CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_serialize(CTX, NULL, &pubnonce[0]));
CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, NULL));
CHECK(memcmp_and_randomize(pubnonce_ser, zeros132, sizeof(pubnonce_ser)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, &invalid_pubnonce));
CHECK(memcmp_and_randomize(pubnonce_ser, zeros132, sizeof(pubnonce_ser)) == 0);
CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, &pubnonce[0]) == 1);
CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], pubnonce_ser) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_parse(CTX, NULL, pubnonce_ser));
CHECK_ILLEGAL(CTX, secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], NULL));
CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], zeros132) == 0);
CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[0], pubnonce_ser) == 1);
{
/* Check that serialize and parse results in the same value */
secp256k1_musig_pubnonce tmp;
CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce_ser, &pubnonce[0]) == 1);
CHECK(secp256k1_musig_pubnonce_parse(CTX, &tmp, pubnonce_ser) == 1);
CHECK(secp256k1_memcmp_var(&tmp, &pubnonce[0], sizeof(tmp)) == 0);
}
/** Receive nonces and aggregate **/
CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, NULL, pubnonce_ptr, 2));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, NULL, 2));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 0));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_agg(CTX, &aggnonce, invalid_pubnonce_ptr, 1));
CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, inf_pubnonce_ptr, 2) == 1);
{
/* Check that the aggnonce encodes two points at infinity */
secp256k1_ge aggnonce_pt[2];
secp256k1_musig_aggnonce_load(CTX, aggnonce_pt, &aggnonce);
for (i = 0; i < 2; i++) {
secp256k1_ge_is_infinity(&aggnonce_pt[i]);
}
}
CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1);
/** Serialize and parse aggregate nonces **/
CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, &aggnonce) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_serialize(CTX, NULL, &aggnonce));
CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, NULL));
CHECK(memcmp_and_randomize(aggnonce_ser, zeros132, sizeof(aggnonce_ser)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, (secp256k1_musig_aggnonce*) &invalid_pubnonce));
CHECK(memcmp_and_randomize(aggnonce_ser, zeros132, sizeof(aggnonce_ser)) == 0);
CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, &aggnonce) == 1);
CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, aggnonce_ser) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_parse(CTX, NULL, aggnonce_ser));
CHECK_ILLEGAL(CTX, secp256k1_musig_aggnonce_parse(CTX, &aggnonce, NULL));
CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, zeros132) == 1);
CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, aggnonce_ser) == 1);
{
/* Check that serialize and parse results in the same value */
secp256k1_musig_aggnonce tmp;
CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce_ser, &aggnonce) == 1);
CHECK(secp256k1_musig_aggnonce_parse(CTX, &tmp, aggnonce_ser) == 1);
CHECK(secp256k1_memcmp_var(&tmp, &aggnonce, sizeof(tmp)) == 0);
}
/** Process nonces **/
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &keyagg_cache) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, NULL, &aggnonce, msg, &keyagg_cache));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, NULL, msg, &keyagg_cache));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, (secp256k1_musig_aggnonce*) &invalid_pubnonce, msg, &keyagg_cache));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, &aggnonce, NULL, &keyagg_cache));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, NULL));
CHECK_ILLEGAL(CTX, secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &invalid_keyagg_cache));
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, &keyagg_cache) == 1);
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, &session) == 1);
/* The secnonce is set to 0 and subsequent signing attempts fail */
CHECK(secp256k1_memcmp_var(&secnonce_tmp, zeros132, sizeof(secnonce_tmp)) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, &session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, NULL, &secnonce_tmp, &keypair[0], &keyagg_cache, &session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], NULL, &keypair[0], &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &invalid_secnonce, &keypair[0], &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, NULL, &keyagg_cache, &session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &invalid_keypair, &keyagg_cache, &session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
{
unsigned char sk_tmp[32];
secp256k1_keypair keypair_tmp;
testrand256(sk_tmp);
CHECK(secp256k1_keypair_create(CTX, &keypair_tmp, sk_tmp));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair_tmp, &keyagg_cache, &session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
}
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], NULL, &session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &invalid_keyagg_cache, &session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, NULL));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce_tmp, &keypair[0], &keyagg_cache, &invalid_session));
memcpy(&secnonce_tmp, &secnonce[0], sizeof(secnonce_tmp));
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce[0], &keypair[0], &keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[1], &secnonce[1], &keypair[1], &keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sig_serialize(CTX, buf, &partial_sig[0]) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_serialize(CTX, NULL, &partial_sig[0]));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_serialize(CTX, buf, NULL));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_serialize(CTX, buf, &invalid_partial_sig));
CHECK(secp256k1_musig_partial_sig_parse(CTX, &partial_sig[0], buf) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_parse(CTX, NULL, buf));
{
/* Check that parsing failure results in an invalid sig */
secp256k1_musig_partial_sig tmp;
CHECK(secp256k1_musig_partial_sig_parse(CTX, &tmp, max64) == 0);
CHECK(secp256k1_memcmp_var(&tmp, zeros132, sizeof(partial_sig[0])) == 0);
}
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_parse(CTX, &partial_sig[0], NULL));
{
/* Check that serialize and parse results in the same value */
secp256k1_musig_partial_sig tmp;
CHECK(secp256k1_musig_partial_sig_serialize(CTX, buf, &partial_sig[0]) == 1);
CHECK(secp256k1_musig_partial_sig_parse(CTX, &tmp, buf) == 1);
CHECK(secp256k1_memcmp_var(&tmp, &partial_sig[0], sizeof(tmp)) == 0);
}
/** Partial signature verification */
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[1], &pubnonce[0], &pk[0], &keyagg_cache, &session) == 0);
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, NULL, &pubnonce[0], &pk[0], &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &invalid_partial_sig, &pubnonce[0], &pk[0], &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], NULL, &pk[0], &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &invalid_pubnonce, &pk[0], &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], NULL, &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &invalid_pk, &keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], NULL, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &invalid_keyagg_cache, &session));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, NULL));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, &invalid_session));
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], &keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[1], &pubnonce[1], &pk[1], &keyagg_cache, &session) == 1);
/** Signature aggregation and verification */
CHECK(secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 2) == 1);
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, NULL, &session, partial_sig_ptr, 2));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, NULL, partial_sig_ptr, 2));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &invalid_session, partial_sig_ptr, 2));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, NULL, 2));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, invalid_partial_sig_ptr, 2));
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 0));
CHECK(secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 1) == 1);
CHECK(secp256k1_musig_partial_sig_agg(CTX, pre_sig, &session, partial_sig_ptr, 2) == 1);
}
static void musig_nonce_bitflip(unsigned char **args, size_t n_flip, size_t n_bytes) {
secp256k1_scalar k1[2], k2[2];
secp256k1_nonce_function_musig(k1, args[0], args[1], args[2], args[3], args[4], args[5]);
testrand_flip(args[n_flip], n_bytes);
secp256k1_nonce_function_musig(k2, args[0], args[1], args[2], args[3], args[4], args[5]);
CHECK(secp256k1_scalar_eq(&k1[0], &k2[0]) == 0);
CHECK(secp256k1_scalar_eq(&k1[1], &k2[1]) == 0);
}
static void musig_nonce_test(void) {
unsigned char *args[6];
unsigned char session_secrand[32];
unsigned char sk[32];
unsigned char pk[33];
unsigned char msg[32];
unsigned char agg_pk[32];
unsigned char extra_input[32];
int i, j;
secp256k1_scalar k[6][2];
testrand_bytes_test(session_secrand, sizeof(session_secrand));
testrand_bytes_test(sk, sizeof(sk));
testrand_bytes_test(pk, sizeof(pk));
testrand_bytes_test(msg, sizeof(msg));
testrand_bytes_test(agg_pk, sizeof(agg_pk));
testrand_bytes_test(extra_input, sizeof(extra_input));
/* Check that a bitflip in an argument results in different nonces. */
args[0] = session_secrand;
args[1] = msg;
args[2] = sk;
args[3] = pk;
args[4] = agg_pk;
args[5] = extra_input;
for (i = 0; i < COUNT; i++) {
musig_nonce_bitflip(args, 0, sizeof(session_secrand));
musig_nonce_bitflip(args, 1, sizeof(msg));
musig_nonce_bitflip(args, 2, sizeof(sk));
musig_nonce_bitflip(args, 3, sizeof(pk));
musig_nonce_bitflip(args, 4, sizeof(agg_pk));
musig_nonce_bitflip(args, 5, sizeof(extra_input));
}
/* Check that if any argument is NULL, a different nonce is produced than if
* any other argument is NULL. */
memcpy(msg, session_secrand, sizeof(msg));
memcpy(sk, session_secrand, sizeof(sk));
memcpy(pk, session_secrand, sizeof(session_secrand));
memcpy(agg_pk, session_secrand, sizeof(agg_pk));
memcpy(extra_input, session_secrand, sizeof(extra_input));
secp256k1_nonce_function_musig(k[0], args[0], args[1], args[2], args[3], args[4], args[5]);
secp256k1_nonce_function_musig(k[1], args[0], NULL, args[2], args[3], args[4], args[5]);
secp256k1_nonce_function_musig(k[2], args[0], args[1], NULL, args[3], args[4], args[5]);
secp256k1_nonce_function_musig(k[3], args[0], args[1], args[2], NULL, args[4], args[5]);
secp256k1_nonce_function_musig(k[4], args[0], args[1], args[2], args[3], NULL, args[5]);
secp256k1_nonce_function_musig(k[5], args[0], args[1], args[2], args[3], args[4], NULL);
for (i = 0; i < 6; i++) {
CHECK(!secp256k1_scalar_eq(&k[i][0], &k[i][1]));
for (j = i+1; j < 6; j++) {
CHECK(!secp256k1_scalar_eq(&k[i][0], &k[j][0]));
CHECK(!secp256k1_scalar_eq(&k[i][1], &k[j][1]));
}
}
}
static void sha256_tag_test_internal(secp256k1_sha256 *sha_tagged, unsigned char *tag, size_t taglen) {
secp256k1_sha256 sha;
secp256k1_sha256_initialize_tagged(&sha, tag, taglen);
test_sha256_eq(&sha, sha_tagged);
}
/* Checks that the initialized tagged hashes have the expected
* state. */
static void sha256_tag_test(void) {
secp256k1_sha256 sha;
{
char tag[] = "KeyAgg list";
secp256k1_musig_keyagglist_sha256(&sha);
sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1);
}
{
char tag[] = "KeyAgg coefficient";
secp256k1_musig_keyaggcoef_sha256(&sha);
sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1);
}
{
unsigned char tag[] = "MuSig/aux";
secp256k1_nonce_function_musig_sha256_tagged_aux(&sha);
sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1);
}
{
unsigned char tag[] = "MuSig/nonce";
secp256k1_nonce_function_musig_sha256_tagged(&sha);
sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1);
}
{
unsigned char tag[] = "MuSig/noncecoef";
secp256k1_musig_compute_noncehash_sha256_tagged(&sha);
sha256_tag_test_internal(&sha, (unsigned char*)tag, sizeof(tag) - 1);
}
}
/* Attempts to create a signature for the aggregate public key using given secret
* keys and keyagg_cache. */
static void musig_tweak_test_helper(const secp256k1_xonly_pubkey* agg_pk, const unsigned char *sk0, const unsigned char *sk1, secp256k1_musig_keyagg_cache *keyagg_cache) {
secp256k1_pubkey pk[2];
unsigned char session_secrand[2][32];
unsigned char msg[32];
secp256k1_musig_secnonce secnonce[2];
secp256k1_musig_pubnonce pubnonce[2];
const secp256k1_musig_pubnonce *pubnonce_ptr[2];
secp256k1_musig_aggnonce aggnonce;
secp256k1_keypair keypair[2];
secp256k1_musig_session session;
secp256k1_musig_partial_sig partial_sig[2];
const secp256k1_musig_partial_sig *partial_sig_ptr[2];
unsigned char final_sig[64];
int i;
for (i = 0; i < 2; i++) {
pubnonce_ptr[i] = &pubnonce[i];
partial_sig_ptr[i] = &partial_sig[i];
testrand256(session_secrand[i]);
}
CHECK(create_keypair_and_pk(&keypair[0], &pk[0], sk0) == 1);
CHECK(create_keypair_and_pk(&keypair[1], &pk[1], sk1) == 1);
testrand256(msg);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[0], &pubnonce[0], session_secrand[0], sk0, &pk[0], NULL, NULL, NULL) == 1);
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce[1], &pubnonce[1], session_secrand[1], sk1, &pk[1], NULL, NULL, NULL) == 1);
CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2) == 1);
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, msg, keyagg_cache) == 1);
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[0], &secnonce[0], &keypair[0], keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig[1], &secnonce[1], &keypair[1], keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[0], &pubnonce[0], &pk[0], keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig[1], &pubnonce[1], &pk[1], keyagg_cache, &session) == 1);
CHECK(secp256k1_musig_partial_sig_agg(CTX, final_sig, &session, partial_sig_ptr, 2) == 1);
CHECK(secp256k1_schnorrsig_verify(CTX, final_sig, msg, sizeof(msg), agg_pk) == 1);
}
/* Create aggregate public key P[0], tweak multiple times (using xonly and
* plain tweaking) and test signing. */
static void musig_tweak_test(void) {
unsigned char sk[2][32];
secp256k1_pubkey pk[2];
const secp256k1_pubkey *pk_ptr[2];
secp256k1_musig_keyagg_cache keyagg_cache;
enum { N_TWEAKS = 8 };
secp256k1_pubkey P[N_TWEAKS + 1];
secp256k1_xonly_pubkey P_xonly[N_TWEAKS + 1];
int i;
/* Key Setup */
for (i = 0; i < 2; i++) {
pk_ptr[i] = &pk[i];
testrand256(sk[i]);
CHECK(create_keypair_and_pk(NULL, &pk[i], sk[i]) == 1);
}
/* Compute P0 = keyagg(pk0, pk1) and test signing for it */
CHECK(secp256k1_musig_pubkey_agg(CTX, &P_xonly[0], &keyagg_cache, pk_ptr, 2) == 1);
musig_tweak_test_helper(&P_xonly[0], sk[0], sk[1], &keyagg_cache);
CHECK(secp256k1_musig_pubkey_get(CTX, &P[0], &keyagg_cache));
/* Compute Pi = f(Pj) + tweaki*G where where j = i-1 and try signing for
* that key. If xonly is set to true, the function f normalizes the input
* point to have an even X-coordinate ("xonly-tweaking").
* Otherwise, the function f is the identity function. */
for (i = 1; i <= N_TWEAKS; i++) {
unsigned char tweak[32];
int P_parity;
int xonly = testrand_bits(1);
testrand256(tweak);
if (xonly) {
CHECK(secp256k1_musig_pubkey_xonly_tweak_add(CTX, &P[i], &keyagg_cache, tweak) == 1);
} else {
CHECK(secp256k1_musig_pubkey_ec_tweak_add(CTX, &P[i], &keyagg_cache, tweak) == 1);
}
CHECK(secp256k1_xonly_pubkey_from_pubkey(CTX, &P_xonly[i], &P_parity, &P[i]));
/* Check that musig_pubkey_tweak_add produces same result as
* xonly_pubkey_tweak_add or ec_pubkey_tweak_add. */
if (xonly) {
unsigned char P_serialized[32];
CHECK(secp256k1_xonly_pubkey_serialize(CTX, P_serialized, &P_xonly[i]));
CHECK(secp256k1_xonly_pubkey_tweak_add_check(CTX, P_serialized, P_parity, &P_xonly[i-1], tweak) == 1);
} else {
secp256k1_pubkey tmp_key = P[i-1];
CHECK(secp256k1_ec_pubkey_tweak_add(CTX, &tmp_key, tweak));
CHECK(secp256k1_memcmp_var(&tmp_key, &P[i], sizeof(tmp_key)) == 0);
}
/* Test signing for P[i] */
musig_tweak_test_helper(&P_xonly[i], sk[0], sk[1], &keyagg_cache);
}
}
int musig_vectors_keyagg_and_tweak(enum MUSIG_ERROR *error,
secp256k1_musig_keyagg_cache *keyagg_cache,
unsigned char *agg_pk_ser,
const unsigned char pubkeys33[][33],
const unsigned char tweaks32[][32],
size_t key_indices_len,
const size_t *key_indices,
size_t tweak_indices_len,
const size_t *tweak_indices,
const int *is_xonly) {
secp256k1_pubkey pubkeys[MUSIG_VECTORS_MAX_PUBKEYS];
const secp256k1_pubkey *pk_ptr[MUSIG_VECTORS_MAX_PUBKEYS];
int i;
secp256k1_pubkey agg_pk;
secp256k1_xonly_pubkey agg_pk_xonly;
for (i = 0; i < (int)key_indices_len; i++) {
if (!secp256k1_ec_pubkey_parse(CTX, &pubkeys[i], pubkeys33[key_indices[i]], 33)) {
*error = MUSIG_PUBKEY;
return 0;
}
pk_ptr[i] = &pubkeys[i];
}
if (!secp256k1_musig_pubkey_agg(CTX, NULL, keyagg_cache, pk_ptr, key_indices_len)) {
*error = MUSIG_OTHER;
return 0;
}
for (i = 0; i < (int)tweak_indices_len; i++) {
if (is_xonly[i]) {
if (!secp256k1_musig_pubkey_xonly_tweak_add(CTX, NULL, keyagg_cache, tweaks32[tweak_indices[i]])) {
*error = MUSIG_TWEAK;
return 0;
}
} else {
if (!secp256k1_musig_pubkey_ec_tweak_add(CTX, NULL, keyagg_cache, tweaks32[tweak_indices[i]])) {
*error = MUSIG_TWEAK;
return 0;
}
}
}
if (!secp256k1_musig_pubkey_get(CTX, &agg_pk, keyagg_cache)) {
*error = MUSIG_OTHER;
return 0;
}
if (!secp256k1_xonly_pubkey_from_pubkey(CTX, &agg_pk_xonly, NULL, &agg_pk)) {
*error = MUSIG_OTHER;
return 0;
}
if (agg_pk_ser != NULL) {
if (!secp256k1_xonly_pubkey_serialize(CTX, agg_pk_ser, &agg_pk_xonly)) {
*error = MUSIG_OTHER;
return 0;
}
}
return 1;
}
static void musig_test_vectors_keyagg(void) {
size_t i;
const struct musig_key_agg_vector *vector = &musig_key_agg_vector;
for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) {
const struct musig_key_agg_valid_test_case *c = &vector->valid_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
unsigned char agg_pk[32];
CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, agg_pk, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, 0, NULL, NULL));
CHECK(secp256k1_memcmp_var(agg_pk, c->expected, sizeof(agg_pk)) == 0);
}
for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) {
const struct musig_key_agg_error_test_case *c = &vector->error_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
CHECK(!musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly));
CHECK(c->error == error);
}
}
static void musig_test_vectors_noncegen(void) {
size_t i;
const struct musig_nonce_gen_vector *vector = &musig_nonce_gen_vector;
for (i = 0; i < sizeof(vector->test_case)/sizeof(vector->test_case[0]); i++) {
const struct musig_nonce_gen_test_case *c = &vector->test_case[i];
secp256k1_musig_keyagg_cache keyagg_cache;
secp256k1_musig_keyagg_cache *keyagg_cache_ptr = NULL;
unsigned char session_secrand32[32];
secp256k1_musig_secnonce secnonce;
secp256k1_musig_pubnonce pubnonce;
const unsigned char *sk = NULL;
const unsigned char *msg = NULL;
const unsigned char *extra_in = NULL;
secp256k1_pubkey pk;
unsigned char pubnonce66[66];
memcpy(session_secrand32, c->rand_, 32);
if (c->has_sk) {
sk = c->sk;
}
if (c->has_aggpk) {
/* Create keyagg_cache from aggpk */
secp256k1_keyagg_cache_internal cache_i;
secp256k1_xonly_pubkey aggpk;
memset(&cache_i, 0, sizeof(cache_i));
CHECK(secp256k1_xonly_pubkey_parse(CTX, &aggpk, c->aggpk));
CHECK(secp256k1_xonly_pubkey_load(CTX, &cache_i.pk, &aggpk));
secp256k1_keyagg_cache_save(&keyagg_cache, &cache_i);
keyagg_cache_ptr = &keyagg_cache;
}
if (c->has_msg) {
msg = c->msg;
}
if (c->has_extra_in) {
extra_in = c->extra_in;
}
CHECK(secp256k1_ec_pubkey_parse(CTX, &pk, c->pk, sizeof(c->pk)));
CHECK(secp256k1_musig_nonce_gen(CTX, &secnonce, &pubnonce, session_secrand32, sk, &pk, msg, keyagg_cache_ptr, extra_in) == 1);
CHECK(secp256k1_memcmp_var(&secnonce.data[4], c->expected_secnonce, 2*32) == 0);
/* The last element of the secnonce is the public key (uncompressed in
* secp256k1_musig_secnonce, compressed in the test vector secnonce). */
CHECK(secp256k1_memcmp_var(&secnonce.data[4+2*32], &pk, sizeof(pk)) == 0);
CHECK(secp256k1_memcmp_var(&c->expected_secnonce[2*32], c->pk, sizeof(c->pk)) == 0);
CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce66, &pubnonce) == 1);
CHECK(sizeof(c->expected_pubnonce) == sizeof(pubnonce66));
CHECK(secp256k1_memcmp_var(pubnonce66, c->expected_pubnonce, sizeof(pubnonce66)) == 0);
}
}
static void musig_test_vectors_nonceagg(void) {
size_t i;
int j;
const struct musig_nonce_agg_vector *vector = &musig_nonce_agg_vector;
for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) {
const struct musig_nonce_agg_test_case *c = &vector->valid_case[i];
secp256k1_musig_pubnonce pubnonce[2];
const secp256k1_musig_pubnonce *pubnonce_ptr[2];
secp256k1_musig_aggnonce aggnonce;
unsigned char aggnonce66[66];
for (j = 0; j < 2; j++) {
CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[j], vector->pnonces[c->pnonce_indices[j]]) == 1);
pubnonce_ptr[j] = &pubnonce[j];
}
CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, 2));
CHECK(secp256k1_musig_aggnonce_serialize(CTX, aggnonce66, &aggnonce));
CHECK(secp256k1_memcmp_var(aggnonce66, c->expected, 33) == 0);
}
for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) {
const struct musig_nonce_agg_test_case *c = &vector->error_case[i];
secp256k1_musig_pubnonce pubnonce[2];
for (j = 0; j < 2; j++) {
int expected = c->invalid_nonce_idx != j;
CHECK(expected == secp256k1_musig_pubnonce_parse(CTX, &pubnonce[j], vector->pnonces[c->pnonce_indices[j]]));
}
}
}
static void musig_test_set_secnonce(secp256k1_musig_secnonce *secnonce, const unsigned char *secnonce64, const secp256k1_pubkey *pubkey) {
secp256k1_ge pk;
secp256k1_scalar k[2];
secp256k1_scalar_set_b32(&k[0], &secnonce64[0], NULL);
secp256k1_scalar_set_b32(&k[1], &secnonce64[32], NULL);
CHECK(secp256k1_pubkey_load(CTX, &pk, pubkey));
secp256k1_musig_secnonce_save(secnonce, k, &pk);
}
static void musig_test_vectors_signverify(void) {
size_t i;
const struct musig_sign_verify_vector *vector = &musig_sign_verify_vector;
for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) {
const struct musig_valid_case *c = &vector->valid_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
secp256k1_pubkey pubkey;
secp256k1_musig_pubnonce pubnonce;
secp256k1_musig_aggnonce aggnonce;
secp256k1_musig_session session;
secp256k1_musig_partial_sig partial_sig;
secp256k1_musig_secnonce secnonce;
secp256k1_keypair keypair;
unsigned char partial_sig32[32];
CHECK(secp256k1_keypair_create(CTX, &keypair, vector->sk));
CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL));
CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonces[c->aggnonce_index]));
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache));
CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0])));
musig_test_set_secnonce(&secnonce, vector->secnonces[0], &pubkey);
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session));
CHECK(secp256k1_musig_partial_sig_serialize(CTX, partial_sig32, &partial_sig));
CHECK(secp256k1_memcmp_var(partial_sig32, c->expected, sizeof(partial_sig32)) == 0);
CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce, vector->pubnonces[0]));
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig, &pubnonce, &pubkey, &keyagg_cache, &session));
}
for (i = 0; i < sizeof(vector->sign_error_case)/sizeof(vector->sign_error_case[0]); i++) {
const struct musig_sign_error_case *c = &vector->sign_error_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
secp256k1_pubkey pubkey;
secp256k1_musig_aggnonce aggnonce;
secp256k1_musig_session session;
secp256k1_musig_partial_sig partial_sig;
secp256k1_musig_secnonce secnonce;
secp256k1_keypair keypair;
int expected;
if (i == 0) {
/* Skip this vector since the implementation does not error out when
* the signing key does not belong to any pubkey. */
continue;
}
expected = c->error != MUSIG_PUBKEY;
CHECK(expected == musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL));
CHECK(expected || c->error == error);
if (!expected) {
continue;
}
expected = c->error != MUSIG_AGGNONCE;
CHECK(expected == secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonces[c->aggnonce_index]));
if (!expected) {
continue;
}
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache));
CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0])));
musig_test_set_secnonce(&secnonce, vector->secnonces[c->secnonce_index], &pubkey);
expected = c->error != MUSIG_SECNONCE;
if (expected) {
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session));
} else {
CHECK_ILLEGAL(CTX, secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session));
}
}
for (i = 0; i < sizeof(vector->verify_fail_case)/sizeof(vector->verify_fail_case[0]); i++) {
const struct musig_verify_fail_error_case *c = &vector->verify_fail_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
secp256k1_musig_aggnonce aggnonce;
secp256k1_musig_session session;
secp256k1_musig_partial_sig partial_sig;
enum { NUM_PUBNONCES = 3 };
secp256k1_musig_pubnonce pubnonce[NUM_PUBNONCES];
const secp256k1_musig_pubnonce *pubnonce_ptr[NUM_PUBNONCES];
secp256k1_pubkey pubkey;
int expected;
size_t j;
CHECK(NUM_PUBNONCES <= c->nonce_indices_len);
for (j = 0; j < c->nonce_indices_len; j++) {
CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce[j], vector->pubnonces[c->nonce_indices[j]]));
pubnonce_ptr[j] = &pubnonce[j];
}
CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL));
CHECK(secp256k1_musig_nonce_agg(CTX, &aggnonce, pubnonce_ptr, c->nonce_indices_len) == 1);
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msgs[c->msg_index], &keyagg_cache));
CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[c->signer_index], sizeof(vector->pubkeys[0])));
expected = c->error != MUSIG_SIG;
CHECK(expected == secp256k1_musig_partial_sig_parse(CTX, &partial_sig, c->sig));
if (!expected) {
continue;
}
expected = c->error != MUSIG_SIG_VERIFY;
CHECK(expected == secp256k1_musig_partial_sig_verify(CTX, &partial_sig, pubnonce, &pubkey, &keyagg_cache, &session));
}
for (i = 0; i < sizeof(vector->verify_error_case)/sizeof(vector->verify_error_case[0]); i++) {
const struct musig_verify_fail_error_case *c = &vector->verify_error_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
secp256k1_musig_pubnonce pubnonce;
int expected;
expected = c->error != MUSIG_PUBKEY;
CHECK(expected == musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, NULL, c->key_indices_len, c->key_indices, 0, NULL, NULL));
CHECK(expected || c->error == error);
if (!expected) {
continue;
}
expected = c->error != MUSIG_PUBNONCE;
CHECK(expected == secp256k1_musig_pubnonce_parse(CTX, &pubnonce, vector->pubnonces[c->nonce_indices[c->signer_index]]));
}
}
static void musig_test_vectors_tweak(void) {
size_t i;
const struct musig_tweak_vector *vector = &musig_tweak_vector;
secp256k1_pubkey pubkey;
secp256k1_musig_aggnonce aggnonce;
secp256k1_musig_secnonce secnonce;
CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, vector->aggnonce));
CHECK(secp256k1_ec_pubkey_parse(CTX, &pubkey, vector->pubkeys[0], sizeof(vector->pubkeys[0])));
for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) {
const struct musig_tweak_case *c = &vector->valid_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
secp256k1_musig_pubnonce pubnonce;
secp256k1_musig_session session;
secp256k1_musig_partial_sig partial_sig;
secp256k1_keypair keypair;
unsigned char partial_sig32[32];
musig_test_set_secnonce(&secnonce, vector->secnonce, &pubkey);
CHECK(secp256k1_keypair_create(CTX, &keypair, vector->sk));
CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly));
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msg, &keyagg_cache));
CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session));
CHECK(secp256k1_musig_partial_sig_serialize(CTX, partial_sig32, &partial_sig));
CHECK(secp256k1_memcmp_var(partial_sig32, c->expected, sizeof(partial_sig32)) == 0);
CHECK(secp256k1_musig_pubnonce_parse(CTX, &pubnonce, vector->pubnonces[c->nonce_indices[c->signer_index]]));
CHECK(secp256k1_musig_partial_sig_verify(CTX, &partial_sig, &pubnonce, &pubkey, &keyagg_cache, &session));
}
for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) {
const struct musig_tweak_case *c = &vector->error_case[i];
enum MUSIG_ERROR error;
secp256k1_musig_keyagg_cache keyagg_cache;
CHECK(!musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, NULL, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly));
CHECK(error == MUSIG_TWEAK);
}
}
static void musig_test_vectors_sigagg(void) {
size_t i, j;
const struct musig_sig_agg_vector *vector = &musig_sig_agg_vector;
for (i = 0; i < sizeof(vector->valid_case)/sizeof(vector->valid_case[0]); i++) {
const struct musig_sig_agg_case *c = &vector->valid_case[i];
enum MUSIG_ERROR error;
unsigned char final_sig[64];
secp256k1_musig_keyagg_cache keyagg_cache;
unsigned char agg_pk32[32];
secp256k1_xonly_pubkey agg_pk;
secp256k1_musig_aggnonce aggnonce;
secp256k1_musig_session session;
secp256k1_musig_partial_sig partial_sig[(sizeof(vector->psigs)/sizeof(vector->psigs[0]))];
const secp256k1_musig_partial_sig *partial_sig_ptr[(sizeof(vector->psigs)/sizeof(vector->psigs[0]))];
CHECK(musig_vectors_keyagg_and_tweak(&error, &keyagg_cache, agg_pk32, vector->pubkeys, vector->tweaks, c->key_indices_len, c->key_indices, c->tweak_indices_len, c->tweak_indices, c->is_xonly));
CHECK(secp256k1_musig_aggnonce_parse(CTX, &aggnonce, c->aggnonce));
CHECK(secp256k1_musig_nonce_process(CTX, &session, &aggnonce, vector->msg, &keyagg_cache));
for (j = 0; j < c->psig_indices_len; j++) {
CHECK(secp256k1_musig_partial_sig_parse(CTX, &partial_sig[j], vector->psigs[c->psig_indices[j]]));
partial_sig_ptr[j] = &partial_sig[j];
}
CHECK(secp256k1_musig_partial_sig_agg(CTX, final_sig, &session, partial_sig_ptr, c->psig_indices_len) == 1);
CHECK(secp256k1_memcmp_var(final_sig, c->expected, sizeof(final_sig)) == 0);
CHECK(secp256k1_xonly_pubkey_parse(CTX, &agg_pk, agg_pk32));
CHECK(secp256k1_schnorrsig_verify(CTX, final_sig, vector->msg, sizeof(vector->msg), &agg_pk) == 1);
}
for (i = 0; i < sizeof(vector->error_case)/sizeof(vector->error_case[0]); i++) {
const struct musig_sig_agg_case *c = &vector->error_case[i];
secp256k1_musig_partial_sig partial_sig[(sizeof(vector->psigs)/sizeof(vector->psigs[0]))];
for (j = 0; j < c->psig_indices_len; j++) {
int expected = c->invalid_sig_idx != (int)j;
CHECK(expected == secp256k1_musig_partial_sig_parse(CTX, &partial_sig[j], vector->psigs[c->psig_indices[j]]));
}
}
}
/* Since the BIP doesn't provide static test vectors for nonce_gen_counter, we
* define a static test here */
static void musig_test_static_nonce_gen_counter(void) {
secp256k1_musig_secnonce secnonce;
secp256k1_musig_pubnonce pubnonce;
unsigned char pubnonce66[66];
secp256k1_pubkey pk;
secp256k1_keypair keypair;
uint64_t nonrepeating_cnt = 0;
unsigned char sk[32] = {
0xEE, 0xC1, 0xCB, 0x7D, 0x1B, 0x72, 0x54, 0xC5,
0xCA, 0xB0, 0xD9, 0xC6, 0x1A, 0xB0, 0x2E, 0x64,
0x3D, 0x46, 0x4A, 0x59, 0xFE, 0x6C, 0x96, 0xA7,
0xEF, 0xE8, 0x71, 0xF0, 0x7C, 0x5A, 0xEF, 0x54,
};
unsigned char expected_secnonce[64] = {
0x84, 0x2F, 0x13, 0x80, 0xCD, 0x17, 0xA1, 0x98,
0xFC, 0x3D, 0xAD, 0x3B, 0x7D, 0xA7, 0x49, 0x29,
0x41, 0xF4, 0x69, 0x76, 0xF2, 0x70, 0x2F, 0xF7,
0xC6, 0x6F, 0x24, 0xF4, 0x72, 0x03, 0x6A, 0xF1,
0xDA, 0x3F, 0x95, 0x2D, 0xDE, 0x4A, 0x2D, 0xA6,
0xB6, 0x32, 0x57, 0x07, 0xCE, 0x87, 0xA4, 0xE3,
0x61, 0x6D, 0x06, 0xFC, 0x5F, 0x81, 0xA9, 0xC9,
0x93, 0x86, 0xD2, 0x0A, 0x99, 0xCE, 0xCF, 0x99,
};
unsigned char expected_pubnonce[66] = {
0x03, 0xA5, 0xB9, 0xB6, 0x90, 0x79, 0x42, 0xEA,
0xCD, 0xDA, 0x49, 0xA3, 0x66, 0x01, 0x6E, 0xC2,
0xE6, 0x24, 0x04, 0xA1, 0xBF, 0x4A, 0xB6, 0xD4,
0xDB, 0x82, 0x06, 0x7B, 0xC3, 0xAD, 0xF0, 0x86,
0xD7, 0x03, 0x32, 0x05, 0xDB, 0x9E, 0xB3, 0x4D,
0x5C, 0x7C, 0xE0, 0x28, 0x48, 0xCA, 0xC6, 0x8A,
0x83, 0xED, 0x73, 0xE3, 0x88, 0x34, 0x77, 0xF5,
0x63, 0xF2, 0x3C, 0xE9, 0xA1, 0x1A, 0x77, 0x21,
0xEC, 0x64,
};
CHECK(secp256k1_keypair_create(CTX, &keypair, sk));
CHECK(secp256k1_keypair_pub(CTX, &pk, &keypair));
CHECK(secp256k1_musig_nonce_gen_counter(CTX, &secnonce, &pubnonce, nonrepeating_cnt, &keypair, NULL, NULL, NULL) == 1);
CHECK(secp256k1_memcmp_var(&secnonce.data[4], expected_secnonce, 2*32) == 0);
CHECK(secp256k1_memcmp_var(&secnonce.data[4+2*32], &pk, sizeof(pk)) == 0);
CHECK(secp256k1_musig_pubnonce_serialize(CTX, pubnonce66, &pubnonce) == 1);
CHECK(secp256k1_memcmp_var(pubnonce66, expected_pubnonce, sizeof(pubnonce66)) == 0);
}
static void run_musig_tests(void) {
int i;
for (i = 0; i < COUNT; i++) {
musig_simple_test();
}
musig_api_tests();
musig_nonce_test();
for (i = 0; i < COUNT; i++) {
/* Run multiple times to ensure that pk and nonce have different y
* parities */
musig_tweak_test();
}
sha256_tag_test();
musig_test_vectors_keyagg();
musig_test_vectors_noncegen();
musig_test_vectors_nonceagg();
musig_test_vectors_signverify();
musig_test_vectors_tweak();
musig_test_vectors_sigagg();
musig_test_static_nonce_gen_counter();
}
#endif
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