bool bkeys_pubkey_append(struct bp_keystore *ks, const bu160_t *key_id,
GString *scriptSig)
{
struct bp_key key;
bp_key_init(&key);
if (!bkeys_key_get(ks, key_id, &key))
return false;
void *pubkey = NULL;
size_t pk_len = 0;
if (!bp_pubkey_get(&key, &pubkey, &pk_len))
return false;
bsp_push_data(scriptSig, pubkey, pk_len);
free(pubkey);
/* no bp_key_free(&key), as bkeys_key_get() returns a ref */
return true;
}
static bool sign1(const bu160_t *key_id, struct bp_keystore *ks,
const bu256_t *hash, int nHashType,
cstring *scriptSig)
{
struct bp_key key;
bool rc = false;
bp_key_init(&key);
/* find private key in keystore */
if (!bkeys_key_get(ks, key_id, &key))
goto out;
void *sig = NULL;
size_t siglen = 0;
/* sign hash with private key */
if (!bp_sign(&key, hash, sizeof(*hash), &sig, &siglen))
goto out;
/* append nHashType to signature */
unsigned char ch = (unsigned char) nHashType;
sig = realloc(sig, siglen + 1);
memcpy(sig + siglen, &ch, 1);
siglen++;
/* append signature to scriptSig */
bsp_push_data(scriptSig, sig, siglen);
free(sig);
rc = true;
out:
bp_key_free(&key);
return rc;
}