60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
#ifndef LIGHTNING_BITCOIN_PUBKEY_H
|
|
#define LIGHTNING_BITCOIN_PUBKEY_H
|
|
#include "config.h"
|
|
#include <ccan/crypto/ripemd160/ripemd160.h>
|
|
#include <ccan/short_types/short_types.h>
|
|
#include <ccan/structeq/structeq.h>
|
|
#include <ccan/tal/tal.h>
|
|
#include <secp256k1_extrakeys.h>
|
|
|
|
struct privkey;
|
|
struct secret;
|
|
|
|
#define PUBKEY_CMPR_LEN 33
|
|
|
|
struct pubkey {
|
|
/* Unpacked pubkey (as used by libsecp256k1 internally) */
|
|
secp256k1_pubkey pubkey;
|
|
};
|
|
/* Define pubkey_eq (no padding) */
|
|
STRUCTEQ_DEF(pubkey, 0, pubkey.data);
|
|
|
|
/* Convert from hex string of DER (scriptPubKey from validateaddress) */
|
|
bool pubkey_from_hexstr(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, const struct pubkey *key);
|
|
|
|
/* Point from secret */
|
|
bool pubkey_from_secret(const struct secret *secret, struct pubkey *key);
|
|
|
|
/* Pubkey from privkey */
|
|
bool pubkey_from_privkey(const struct privkey *privkey,
|
|
struct pubkey *key);
|
|
|
|
/* Pubkey from DER encoding. */
|
|
bool pubkey_from_der(const u8 *der, size_t len, struct pubkey *key);
|
|
|
|
/* Pubkey to DER encoding: must be valid pubkey. */
|
|
void pubkey_to_der(u8 der[PUBKEY_CMPR_LEN], const struct pubkey *key);
|
|
|
|
/* Compare the keys `a` and `b`. Return <0 if `a`<`b`, 0 if equal and >0 otherwise */
|
|
int pubkey_cmp(const struct pubkey *a, const struct pubkey *b);
|
|
|
|
/* If the two pubkeys[] are id1 and id2, which index would id1 be? */
|
|
static inline int pubkey_idx(const struct pubkey *id1, const struct pubkey *id2)
|
|
{
|
|
return pubkey_cmp(id1, id2) > 0;
|
|
}
|
|
|
|
/**
|
|
* pubkey_to_hash160 - Get the hash for p2pkh payments for a given pubkey
|
|
*/
|
|
void pubkey_to_hash160(const struct pubkey *pk, struct ripemd160 *hash);
|
|
|
|
/* marshal/unmarshal functions */
|
|
void towire_pubkey(u8 **pptr, const struct pubkey *pubkey);
|
|
void fromwire_pubkey(const u8 **cursor, size_t *max, struct pubkey *pubkey);
|
|
|
|
#endif /* LIGHTNING_BITCOIN_PUBKEY_H */
|