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psbt: use DER encoded + sighash byte for PSBT_IN_PARTIAL_SIG items

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Per BIP-0171, the signature map is of pubkey to "The signature as would
be pushed to the stack from a scriptSig or witness".

Fixes 5298

Changelog-Fixed: PSBT: Fix signature encoding to comply with BIP-0171.

Signed-off-by: Jon Griffiths <jon_p_griffiths@yahoo.com>
This commit is contained in:
Jon Griffiths
2022-06-07 15:39:30 +12:00
committed by Christian Decker
parent 74ddc15435
commit 572942c783
16 changed files with 40 additions and 74 deletions
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18
bitcoin/test/run-tx-encode.c
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@@ -2,6 +2,7 @@
#include <assert.h>
#include <bitcoin/psbt.c>
#include <bitcoin/shadouble.c>
#include <bitcoin/signature.c>
#include <bitcoin/tx.c>
#include <bitcoin/varint.c>
#include <ccan/str/hex/hex.h>
@@ -47,12 +48,22 @@ const u8 *fromwire(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, void *copy
/* Generated stub for fromwire_fail */
void *fromwire_fail(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_fail called!\n"); abort(); }
/* Generated stub for fromwire_secp256k1_ecdsa_signature */
void fromwire_secp256k1_ecdsa_signature(const u8 **cursor UNNEEDED, size_t *max UNNEEDED,
secp256k1_ecdsa_signature *signature UNNEEDED)
{ fprintf(stderr, "fromwire_secp256k1_ecdsa_signature called!\n"); abort(); }
/* Generated stub for fromwire_sha256 */
void fromwire_sha256(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, struct sha256 *sha256 UNNEEDED)
{ fprintf(stderr, "fromwire_sha256 called!\n"); abort(); }
/* Generated stub for fromwire_u32 */
u32 fromwire_u32(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_u32 called!\n"); abort(); }
/* Generated stub for fromwire_u8 */
u8 fromwire_u8(const u8 **cursor UNNEEDED, size_t *max UNNEEDED)
{ fprintf(stderr, "fromwire_u8 called!\n"); abort(); }
/* Generated stub for fromwire_u8_array */
void fromwire_u8_array(const u8 **cursor UNNEEDED, size_t *max UNNEEDED, u8 *arr UNNEEDED, size_t num UNNEEDED)
{ fprintf(stderr, "fromwire_u8_array called!\n"); abort(); }
/* Generated stub for is_anchor_witness_script */
bool is_anchor_witness_script(const u8 *script UNNEEDED, size_t script_len UNNEEDED)
{ fprintf(stderr, "is_anchor_witness_script called!\n"); abort(); }
@@ -68,12 +79,19 @@ void script_push_bytes(u8 **scriptp UNNEEDED, const void *mem UNNEEDED, size_t l
/* Generated stub for scriptpubkey_p2wsh */
u8 *scriptpubkey_p2wsh(const tal_t *ctx UNNEEDED, const u8 *witnessscript UNNEEDED)
{ fprintf(stderr, "scriptpubkey_p2wsh called!\n"); abort(); }
/* Generated stub for towire_secp256k1_ecdsa_signature */
void towire_secp256k1_ecdsa_signature(u8 **pptr UNNEEDED,
const secp256k1_ecdsa_signature *signature UNNEEDED)
{ fprintf(stderr, "towire_secp256k1_ecdsa_signature called!\n"); abort(); }
/* Generated stub for towire_sha256 */
void towire_sha256(u8 **pptr UNNEEDED, const struct sha256 *sha256 UNNEEDED)
{ fprintf(stderr, "towire_sha256 called!\n"); abort(); }
/* Generated stub for towire_u32 */
void towire_u32(u8 **pptr UNNEEDED, u32 v UNNEEDED)
{ fprintf(stderr, "towire_u32 called!\n"); abort(); }
/* Generated stub for towire_u8 */
void towire_u8(u8 **pptr UNNEEDED, u8 v UNNEEDED)
{ fprintf(stderr, "towire_u8 called!\n"); abort(); }
/* Generated stub for towire_u8_array */
void towire_u8_array(u8 **pptr UNNEEDED, const u8 *arr UNNEEDED, size_t num UNNEEDED)
{ fprintf(stderr, "towire_u8_array called!\n"); abort(); }