/* buf already contains version and ripemd160. Append checksum and encode */
char *base58_with_check(char dest[BASE58_ADDR_MAX_LEN],
u8 buf[1 + sizeof(struct ripemd160) + 4])
{
/* Append checksum */
base58_get_checksum(buf + 1 + sizeof(struct ripemd160),
buf, 1 + sizeof(struct ripemd160));
/* Now encode. */
return encode_base58(dest, BASE58_ADDR_MAX_LEN, buf,
1 + sizeof(struct ripemd160) + 4);
}
std::string payment_address::encoded() const
{
data_chunk unencoded_address;
unencoded_address.reserve(25);
// Type, Hash, Checksum doth make thy address
unencoded_address.push_back(version_);
extend_data(unencoded_address, hash_);
append_checksum(unencoded_address);
BITCOIN_ASSERT(unencoded_address.size() == 25);
return encode_base58(unencoded_address);
}
std::string secret_to_wif(const ec_secret& secret, bool compressed)
{
auto version = to_array(payment_address::wif_version);
data_chunk data;
if (compressed)
data = build_chunk({ version, secret, to_array(0x01) }, checksum_size);
else
data = build_chunk({version, secret}, checksum_size);
append_checksum(data);
return encode_base58(data);
}
std::string payment_address::encoded(uint8_t version_byte) const
{
data_chunk unencoded_address;
BITCOIN_ASSERT(
type_ == payment_type::pubkey_hash ||
type_ == payment_type::script_hash);
// Type, Hash, Checksum doth make thy address
unencoded_address.push_back(version_byte);
extend_data(unencoded_address, hash_);
uint32_t checksum = generate_sha256_checksum(unencoded_address);
extend_data(unencoded_address, uncast_type(checksum));
BITCOIN_ASSERT(unencoded_address.size() == 25);
return encode_base58(unencoded_address);
}
static char *to_base58(const tal_t *ctx, u8 version,
const struct ripemd160 *rmd)
{
u8 buf[1 + sizeof(*rmd) + 4];
char out[BASE58_ADDR_MAX_LEN + 2], *p;
buf[0] = version;
memcpy(buf+1, rmd, sizeof(*rmd));
/* Append checksum */
base58_get_checksum(buf + 1 + sizeof(*rmd), buf, 1 + sizeof(*rmd));
p = encode_base58(out, BASE58_ADDR_MAX_LEN, buf, sizeof(buf));
return tal_strdup(ctx, p);
}
char *key_to_base58(const tal_t *ctx, bool test_net, const struct privkey *key)
{
u8 buf[1 + 32 + 1 + 4];
char out[BASE58_KEY_MAX_LEN + 2], *p;
buf[0] = test_net ? 239 : 128;
memcpy(buf + 1, key->secret, sizeof(key->secret));
/* Mark this as a compressed key. */
buf[1 + 32] = 1;
/* Append checksum */
base58_get_checksum(buf + 1 + 32 + 1, buf, 1 + 32 + 1);
p = encode_base58(out, BASE58_KEY_MAX_LEN, buf, sizeof(buf));
return tal_strdup(ctx, p);
}
std::string hd_public_key::encoded() const
{
auto prefix = mainnet_public_prefix;
if (lineage_.testnet)
prefix = testnet_public_prefix;
auto data = build_data({
to_big_endian(prefix),
to_byte(lineage_.depth),
to_little_endian(lineage_.parent_fingerprint),
to_big_endian(lineage_.child_number),
c_,
K_
}, checksum_size);
append_checksum(data);
return encode_base58(data);
}
char *bitcoin_to_base58(const tal_t *ctx, bool test_net,
const struct bitcoin_address *addr)
{
u8 buf[1 + sizeof(addr->addr) + 4];
char out[BASE58_ADDR_MAX_LEN + 2], *p;
buf[0] = test_net ? 111 : 0;
BUILD_ASSERT(sizeof(addr->addr) == sizeof(struct ripemd160));
memcpy(buf+1, addr, sizeof(addr->addr));
/* Append checksum */
base58_get_checksum(buf + 1 + sizeof(addr->addr),
buf, 1 + sizeof(addr->addr));
p = encode_base58(out, BASE58_ADDR_MAX_LEN, buf, sizeof(buf));
return tal_strdup(ctx, p);
}
BCW_API std::string hd_public_key::serialize() const
{
data_chunk data;
data.reserve(serialized_length);
auto prefix = mainnet_public_prefix;
if (lineage_.testnet)
prefix = testnet_public_prefix;
extend_data(data, to_big_endian(prefix));
data.push_back(lineage_.depth);
extend_data(data, to_little_endian(lineage_.parent_fingerprint));
extend_data(data, to_big_endian(lineage_.child_number));
extend_data(data, c_);
extend_data(data, K_);
append_checksum(data);
return encode_base58(data);
}
std::string stealth_address::encoded() const
{
if (!valid_)
return std::string();
data_chunk raw_address;
raw_address.push_back(get_version());
raw_address.push_back(get_options());
extend_data(raw_address, scan_pubkey_);
// Spend_pubkeys must be guarded against a size greater than 255.
auto number_spend_pubkeys = static_cast<uint8_t>(spend_pubkeys_.size());
// Adjust for key reuse.
if (get_reuse_key())
--number_spend_pubkeys;
raw_address.push_back(number_spend_pubkeys);
// Serialize the spend keys, excluding any that match the scan key.
for (const ec_point& pubkey: spend_pubkeys_)
if (pubkey != scan_pubkey_)
extend_data(raw_address, pubkey);
raw_address.push_back(signatures_);
// The prefix must be guarded against a size greater than 32
// so that the bitfield can convert into uint32_t and sized by uint8_t.
auto prefix_number_bits = static_cast<uint8_t>(prefix_.size());
// Serialize the prefix bytes/blocks.
raw_address.push_back(prefix_number_bits);
extend_data(raw_address, prefix_.blocks());
append_checksum(raw_address);
return encode_base58(raw_address);
}
std::string payment_address::encoded() const
{
const auto data = wrap(version_, hash_);
return encode_base58(data);
}
