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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#ifndef LIGHTNING_BITCOIN_PUBKEY_H
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#define LIGHTNING_BITCOIN_PUBKEY_H
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#include "config.h"
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#include <ccan/short_types/short_types.h>
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#include <ccan/tal/tal.h>
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#include <secp256k1.h>
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struct privkey;
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#define PUBKEY_DER_LEN 33
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struct pubkey {
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/* Unpacked pubkey (as used by libsecp256k1 internally) */
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secp256k1_pubkey pubkey;
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};
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/* Convert from hex string of DER (scriptPubKey from validateaddress) */
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bool pubkey_from_hexstr(const char *derstr, size_t derlen, struct pubkey *key);
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/* Convert from hex string of DER (scriptPubKey from validateaddress) */
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char *pubkey_to_hexstr(const tal_t *ctx, const struct pubkey *key);
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/* Convenience wrapper for a raw secp256k1_pubkey */
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char *secp256k1_pubkey_to_hexstr(const tal_t *ctx, const secp256k1_pubkey *key);
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/* Pubkey from privkey */
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bool pubkey_from_privkey(const struct privkey *privkey,
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struct pubkey *key);
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/* Pubkey from DER encoding. */
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bool pubkey_from_der(const u8 *der, size_t len, struct pubkey *key);
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/* Pubkey to DER encoding: must be valid pubkey. */
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void pubkey_to_der(u8 der[PUBKEY_DER_LEN], const struct pubkey *key);
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/* Are these keys equal? */
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bool pubkey_eq(const struct pubkey *a, const struct pubkey *b);
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/* Compare the keys `a` and `b`. Return <0 if `a`<`b`, 0 if equal and >0 otherwise */
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int pubkey_cmp(const struct pubkey *a, const struct pubkey *b);
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#endif /* LIGHTNING_PUBKEY_H */
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