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bitcoin/script: helper to create ScriptCode for signing P2WPKH.

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sign_tx_input() now takes a witness_script arg: P2WPKH doesn't really
have a witness_script, but for signing it behaves as if it does.

This helper constructs that "fake" witness_script.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2016-04-12 13:06:51 +09:30
parent df5d4e3c10
commit af080d5613
2 changed files with 29 additions and 0 deletions
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3
bitcoin/script.h
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@@ -41,6 +41,9 @@ u8 *scriptsig_pay_to_pubkeyhash(const tal_t *ctx,
const struct pubkey *key,
const struct bitcoin_signature *sig);
/* Create scriptcode (fake witness, basically) for P2WPKH */
u8 *p2wpkh_scriptcode(const tal_t *ctx, const struct pubkey *key);
u8 *scriptpubkey_htlc_send(const tal_t *ctx,
const struct pubkey *ourkey,
const struct pubkey *theirkey,