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8516798645
The subscript in this case is the redeemscript, not the input script. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
#ifndef LIGHTNING_SIGNATURE_H
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#define LIGHTNING_SIGNATURE_H
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#include <ccan/short_types/short_types.h>
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#include <openssl/ecdsa.h>
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#include <ccan/tal/tal.h>
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#include "lightning.pb-c.h"
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enum sighash_type {
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SIGHASH_ALL = 1,
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SIGHASH_NONE = 2,
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SIGHASH_SINGLE = 3,
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SIGHASH_ANYONECANPAY = 0x80
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};
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/* ECDSA of double SHA256. */
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struct signature {
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u8 r[32];
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u8 s[32];
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};
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struct sha256_double;
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struct bitcoin_tx;
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struct pubkey;
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struct bitcoin_tx_output;
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struct bitcoin_signature;
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bool sign_hash(const tal_t *ctx, EC_KEY *private_key,
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const struct sha256_double *h,
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struct signature *s);
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/* All tx input scripts must be set to 0 len. */
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bool sign_tx_input(const tal_t *ctx, struct bitcoin_tx *tx,
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unsigned int in,
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const u8 *subscript, size_t subscript_len,
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EC_KEY *privkey, struct signature *sig);
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bool check_2of2_sig(struct bitcoin_tx *tx, size_t input_num,
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const u8 *redeemscript, size_t redeemscript_len,
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const struct pubkey *key1, const struct pubkey *key2,
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const struct bitcoin_signature *sig1,
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const struct bitcoin_signature *sig2);
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/* Convert to-from protobuf to internal representation. */
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Signature *signature_to_proto(const tal_t *ctx, const struct signature *sig);
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bool proto_to_signature(const Signature *pb, struct signature *sig);
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#endif /* LIGHTNING_SIGNATURE_H */
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