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Bitcoin Core
22.99.0
P2P Digital Currency
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Go to the documentation of this file.
10 #include "../include/secp256k1.h"
14 #ifdef ENABLE_OPENSSL_TESTS
15 #include <openssl/bn.h>
16 #include <openssl/ecdsa.h>
17 #include <openssl/obj_mac.h>
23 unsigned char msg[32];
24 unsigned char key[32];
25 unsigned char sig[72];
27 unsigned char pubkey[33];
29 #ifdef ENABLE_OPENSSL_TESTS
38 for (i = 0; i < iters; i++) {
41 data->
sig[data->
siglen - 1] ^= (i & 0xFF);
42 data->
sig[data->
siglen - 2] ^= ((i >> 8) & 0xFF);
43 data->
sig[data->
siglen - 3] ^= ((i >> 16) & 0xFF);
47 data->
sig[data->
siglen - 1] ^= (i & 0xFF);
48 data->
sig[data->
siglen - 2] ^= ((i >> 8) & 0xFF);
49 data->
sig[data->
siglen - 3] ^= ((i >> 16) & 0xFF);
53 #ifdef ENABLE_OPENSSL_TESTS
54 static void bench_verify_openssl(
void* arg,
int iters) {
58 for (i = 0; i < iters; i++) {
59 data->
sig[data->
siglen - 1] ^= (i & 0xFF);
60 data->
sig[data->
siglen - 2] ^= ((i >> 8) & 0xFF);
61 data->
sig[data->
siglen - 3] ^= ((i >> 16) & 0xFF);
63 EC_KEY *pkey = EC_KEY_new();
64 const unsigned char *pubkey = &data->
pubkey[0];
68 result = EC_KEY_set_group(pkey, data->ec_group);
70 result = (o2i_ECPublicKey(&pkey, &pubkey, data->
pubkeylen)) != NULL;
72 result = ECDSA_verify(0, &data->
msg[0],
sizeof(data->
msg), &data->
sig[0], data->
siglen, pkey) == (i == 0);
76 data->
sig[data->
siglen - 1] ^= (i & 0xFF);
77 data->
sig[data->
siglen - 2] ^= ((i >> 8) & 0xFF);
78 data->
sig[data->
siglen - 3] ^= ((i >> 16) & 0xFF);
93 for (i = 0; i < 32; i++) {
96 for (i = 0; i < 32; i++) {
107 #ifdef ENABLE_OPENSSL_TESTS
108 data.ec_group = EC_GROUP_new_by_curve_name(NID_secp256k1);
109 run_benchmark(
"ecdsa_verify_openssl", bench_verify_openssl, NULL, NULL, &data, 10, iters);
110 EC_GROUP_free(data.ec_group);
Opaque data structured that holds a parsed ECDSA signature.
SECP256K1_API int secp256k1_ecdsa_signature_parse_der(const secp256k1_context *ctx, secp256k1_ecdsa_signature *sig, const unsigned char *input, size_t inputlen) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3)
Parse a DER ECDSA signature.
#define SECP256K1_CONTEXT_VERIFY
Flags to pass to secp256k1_context_create, secp256k1_context_preallocated_size, and secp256k1_context...
#define SECP256K1_CONTEXT_SIGN
SECP256K1_API int secp256k1_ecdsa_signature_serialize_der(const secp256k1_context *ctx, unsigned char *output, size_t *outputlen, const secp256k1_ecdsa_signature *sig) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Serialize an ECDSA signature in DER format.
static void bench_verify(void *arg, int iters)
SECP256K1_API void secp256k1_context_destroy(secp256k1_context *ctx)
Destroy a secp256k1 context object (created in dynamically allocated memory).
SECP256K1_API secp256k1_context * secp256k1_context_create(unsigned int flags) SECP256K1_WARN_UNUSED_RESULT
Create a secp256k1 context object (in dynamically allocated memory).
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify(const secp256k1_context *ctx, const secp256k1_ecdsa_signature *sig, const unsigned char *msghash32, const secp256k1_pubkey *pubkey) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Verify an ECDSA signature.
SECP256K1_API int secp256k1_ec_pubkey_serialize(const secp256k1_context *ctx, unsigned char *output, size_t *outputlen, const secp256k1_pubkey *pubkey, unsigned int flags) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Serialize a pubkey object into a serialized byte sequence.
#define SECP256K1_EC_COMPRESSED
Flag to pass to secp256k1_ec_pubkey_serialize.
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_parse(const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const unsigned char *input, size_t inputlen) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3)
Parse a variable-length public key into the pubkey object.
void run_benchmark(char *name, void(*benchmark)(void *, int), void(*setup)(void *), void(*teardown)(void *, int), void *data, int count, int iter)
SECP256K1_API int secp256k1_ecdsa_sign(const secp256k1_context *ctx, secp256k1_ecdsa_signature *sig, const unsigned char *msghash32, const unsigned char *seckey, secp256k1_nonce_function noncefp, const void *ndata) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4)
Create an ECDSA signature.
#define CHECK(cond)
Unconditional failure on condition failure.
int get_iters(int default_iters)
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_create(const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const unsigned char *seckey) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3)
Compute the public key for a secret key.
Opaque data structure that holds a parsed and valid public key.
static secp256k1_context * ctx