core-lightning/bitcoin/pubkey.h
Rusty Russell 242fa1b2dd pubkey: pubkey_eq helper.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-09-30 16:38:58 +09:30

33 lines
960 B
C

#ifndef LIGHTNING_BITCOIN_PUBKEY_H
#define LIGHTNING_BITCOIN_PUBKEY_H
#include <ccan/short_types/short_types.h>
#include <ccan/tal/tal.h>
#include "secp256k1.h"
struct privkey;
struct pubkey {
/* DER-encoded key (as hashed by bitcoin, for addresses) */
u8 der[65];
/* Unpacked pubkey (as used by libsecp256k1 internally) */
secp256k1_pubkey pubkey;
};
/* Convert from hex string of DER (scriptPubKey from validateaddress) */
bool pubkey_from_hexstr(const char *derstr, struct pubkey *key);
/* Pubkey from privkey */
bool pubkey_from_privkey(const struct privkey *privkey,
struct pubkey *key,
unsigned int compressed_flags);
/* Pubkey from DER encoding. */
bool pubkey_from_der(const u8 *der, size_t len, struct pubkey *key);
/* How many bytes of key->der are valid. */
size_t pubkey_derlen(const struct pubkey *key);
/* Are these keys equal? */
bool pubkey_eq(const struct pubkey *a, const struct pubkey *b);
#endif /* LIGHTNING_PUBKEY_H */