core-lightning/bitcoin/pubkey.h
Rusty Russell 364c2cd2c0 key_from_base58 / pubkey_from_privkey: don't support non-compressed keys.
It just clutters the API, and we don't support them on the wire anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-07-01 12:00:17 +09:30

41 lines
1.2 KiB
C

#ifndef LIGHTNING_BITCOIN_PUBKEY_H
#define LIGHTNING_BITCOIN_PUBKEY_H
#include "config.h"
#include <ccan/short_types/short_types.h>
#include <ccan/tal/tal.h>
#include <secp256k1.h>
struct privkey;
#define PUBKEY_DER_LEN 33
struct pubkey {
/* Unpacked pubkey (as used by libsecp256k1 internally) */
secp256k1_pubkey pubkey;
};
/* Convert from hex string of DER (scriptPubKey from validateaddress) */
bool pubkey_from_hexstr(secp256k1_context *secpctx,
const char *derstr, size_t derlen, struct pubkey *key);
/* Convert from hex string of DER (scriptPubKey from validateaddress) */
char *pubkey_to_hexstr(const tal_t *ctx, secp256k1_context *secpctx,
const struct pubkey *key);
/* Pubkey from privkey */
bool pubkey_from_privkey(secp256k1_context *secpctx,
const struct privkey *privkey,
struct pubkey *key);
/* Pubkey from DER encoding. */
bool pubkey_from_der(secp256k1_context *secpctx,
const u8 *der, size_t len, struct pubkey *key);
/* Pubkey to DER encoding: must be valid pubkey. */
void pubkey_to_der(secp256k1_context *secpctx, u8 der[PUBKEY_DER_LEN],
const struct pubkey *key);
/* Are these keys equal? */
bool pubkey_eq(const struct pubkey *a, const struct pubkey *b);
#endif /* LIGHTNING_PUBKEY_H */