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src/libsecp256k1/ec.cpp: Implement ec_generate_privkey() and ec_get_publickey()

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This commit is contained in:
Henrik Hautakoski 2023-03-20 13:34:12 +01:00
parent 78d90b622e
commit b10911b21b
1 changed files with 39 additions and 0 deletions
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39
src/libsecp256k1/ec.cpp
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@ -42,6 +42,45 @@ void ec_shutdown() {
} }
} }
int ec_generate_privkey(ec_privkey_t *priv) {
unsigned char randomize[32];
if (!fill_random(randomize, sizeof(randomize))) {
return -1;
}
if (secp256k1_context_randomize(ctx, randomize) < 0) {
return -1;
}
while (1) {
if (!fill_random(priv->data(), priv->size())) {
return -1;
}
if (secp256k1_ec_seckey_verify(ctx, priv->data())) {
break;
}
}
return 0;
}
int ec_get_publickey(const ec_privkey_t *priv, ec_pubkey_t* pub) {
size_t len;
secp256k1_pubkey ec_pub;
if (secp256k1_ec_pubkey_create(ctx, &ec_pub, priv->data()) < 0) {
return -1;
}
len = EC_PUBKEY_SIZE;
secp256k1_ec_pubkey_serialize(ctx, pub->data(), &len, &ec_pub, SECP256K1_EC_COMPRESSED);
return len != EC_PUBKEY_SIZE ? -1 : 0;
}
int ec_generate_key(struct ec_keypair *pair) { int ec_generate_key(struct ec_keypair *pair) {
size_t len; size_t len;