167 lines
13 KiB
Python
167 lines
13 KiB
Python
# (c) Copyright 2020 by Coinkite Inc. This file is covered by license found in COPYING-CC.
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#
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# work thru the first example given in BIP-143
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from h import a2b_hex, b2a_hex
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from psbt import psbtObject, psbtInputProxy, psbtOutputProxy
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from serializations import CTxIn, ser_compact_size
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from uio import BytesIO
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from sffile import SFFile
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from struct import unpack
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# test vectors from BIP masqueraded as "examples"
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BIP143_DATA = [
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(
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"Native P2WPKH", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#native-p2wpkh
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'0100000002fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4e4ad969f0000000000eeffffffef51e1b804cc89d182d279655c3aa89e815b1b309fe287d9b2b55d57b90ec68a0100000000ffffffff02202cb206000000001976a9148280b37df378db99f66f85c95a783a76ac7a6d5988ac9093510d000000001976a9143bde42dbee7e4dbe6a21b2d50ce2f0167faa815988ac11000000',
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'1976a9141d0f172a0ecb48aee1be1f2687d2963ae33f71a188ac', # scriptCode
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0, # input index
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'ef51e1b804cc89d182d279655c3aa89e815b1b309fe287d9b2b55d57b90ec68a0100000000ffffffff', # outpoint
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0x01, # sigHash typr
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'0046c32300000000', # amount
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'c37af31116d1b27caf68aae9e3ac82f1477929014d5b917657d0eb49478cb670', # sighash (result)
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),
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(
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"P2SH-P2WPKH", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#p2sh-p2wpkh
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'0100000001db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3ceb1a54770100000000feffffff02b8b4eb0b000000001976a914a457b684d7f0d539a46a45bbc043f35b59d0d96388ac0008af2f000000001976a914fd270b1ee6abcaea97fea7ad0402e8bd8ad6d77c88ac92040000',
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'1976a91479091972186c449eb1ded22b78e40d009bdf008988ac', # scriptCode
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0, # input index
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'db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3ceb1a54770100000000feffffff', # outpoint
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0x01, # sigHash typr
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'00ca9a3b00000000', # amount
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'64f3b0f4dd2bb3aa1ce8566d220cc74dda9df97d8490cc81d89d735c92e59fb6', # sighash (result)
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),
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# (
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# "Native P2WSH (scriptCode 0) SINGLE", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#native-p2wsh
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# '0100000002fe3dc9208094f3ffd12645477b3dc56f60ec4fa8e6f5d67c565d1c6b9216b36e0000000000ffffffff0815cf020f013ed6cf91d29f4202e8a58726b1ac6c79da47c23d1bee0a6925f80000000000ffffffff0100f2052a010000001976a914a30741f8145e5acadf23f751864167f32e0963f788ac00000000',
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# # unsigned tx
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# '4721026dccc749adc2a9d0d89497ac511f760f45c47dc5ed9cf352a58ac706453880aeadab210255a9626aebf5e29c0e6538428ba0d1dcf6ca98ffdf086aa8ced5e0d0215ea465ac',
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# # scriptCode
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# 1, # input index
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# '0815cf020f013ed6cf91d29f4202e8a58726b1ac6c79da47c23d1bee0a6925f80000000000ffffffff', # outpoint
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# 0x03, # sigHash typr
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# '0011102401000000', # amount
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# '82dde6e4f1e94d02c2b7ad03d2115d691f48d064e9d52f58194a6637e4194391', # sighash (result)
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# ),
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# (
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# "Native P2WSH (scriptCode 1) SINGLE", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#native-p2wsh
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# '0100000002fe3dc9208094f3ffd12645477b3dc56f60ec4fa8e6f5d67c565d1c6b9216b36e0000000000ffffffff0815cf020f013ed6cf91d29f4202e8a58726b1ac6c79da47c23d1bee0a6925f80000000000ffffffff0100f2052a010000001976a914a30741f8145e5acadf23f751864167f32e0963f788ac00000000',
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# '23210255a9626aebf5e29c0e6538428ba0d1dcf6ca98ffdf086aa8ced5e0d0215ea465ac', # scriptCode
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# 1, # input index
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# '0815cf020f013ed6cf91d29f4202e8a58726b1ac6c79da47c23d1bee0a6925f80000000000ffffffff', # outpoint
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# 0x03, # sigHash typr
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# '0011102401000000', # amount
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# 'fef7bd749cce710c5c052bd796df1af0d935e59cea63736268bcbe2d2134fc47', # sighash (result)
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# ),
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(
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"Native P2WSH (input 0) SINGLE|ANYONECANPAY", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#native-p2wsh
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'0100000002e9b542c5176808107ff1df906f46bb1f2583b16112b95ee5380665ba7fcfc0010000000000ffffffff80e68831516392fcd100d186b3c2c7b95c80b53c77e77c35ba03a66b429a2a1b0000000000ffffffff0280969800000000001976a914de4b231626ef508c9a74a8517e6783c0546d6b2888ac80969800000000001976a9146648a8cd4531e1ec47f35916de8e259237294d1e88ac00000000',
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'270063ab68210392972e2eb617b2388771abe27235fd5ac44af8e61693261550447a4c3e39da98ac', # scriptCode
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0, # input index
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'e9b542c5176808107ff1df906f46bb1f2583b16112b95ee5380665ba7fcfc0010000000000ffffffff', # outpoint
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0x83, # sigHash typr
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'ffffff0000000000', # amount
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'e9071e75e25b8a1e298a72f0d2e9f4f95a0f5cdf86a533cda597eb402ed13b3a', # sighash (result)
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),
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(
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"Native P2WSH (input 1) SINGLE|ANYONECANPAY", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#native-p2wsh
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'0100000002e9b542c5176808107ff1df906f46bb1f2583b16112b95ee5380665ba7fcfc0010000000000ffffffff80e68831516392fcd100d186b3c2c7b95c80b53c77e77c35ba03a66b429a2a1b0000000000ffffffff0280969800000000001976a914de4b231626ef508c9a74a8517e6783c0546d6b2888ac80969800000000001976a9146648a8cd4531e1ec47f35916de8e259237294d1e88ac00000000',
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'2468210392972e2eb617b2388771abe27235fd5ac44af8e61693261550447a4c3e39da98ac', # scriptCode
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1, # input index
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'80e68831516392fcd100d186b3c2c7b95c80b53c77e77c35ba03a66b429a2a1b0000000000ffffffff', # outpoint
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0x83, # sigHash typr
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'ffffff0000000000', # amount
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'cd72f1f1a433ee9df816857fad88d8ebd97e09a75cd481583eb841c330275e54', # sighash (result)
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),
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(
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"P2SH-P2WSH ALL", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#p2sh-p2wsh
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'010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84c138dbbd3c3ee41588ac00000000',
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'cf56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae', # scriptCode
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0, # input index
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'36641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff', # outpoint
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0x01, # sigHash typr
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'b168de3a00000000', # amount
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'185c0be5263dce5b4bb50a047973c1b6272bfbd0103a89444597dc40b248ee7c', # sighash (result)
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),
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(
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"P2SH-P2WSH NONE", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#p2sh-p2wsh
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'010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84c138dbbd3c3ee41588ac00000000',
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'cf56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae', # scriptCode
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0, # input index
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'36641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff', # outpoint
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0x02, # sigHash typr
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'b168de3a00000000', # amount
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'e9733bc60ea13c95c6527066bb975a2ff29a925e80aa14c213f686cbae5d2f36', # sighash (result)
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),
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(
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"P2SH-P2WSH SIGNLE", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#p2sh-p2wsh
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'010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84c138dbbd3c3ee41588ac00000000',
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'cf56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae', # scriptCode
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0, # input index
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'36641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff', # outpoint
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0x03, # sigHash typr
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'b168de3a00000000', # amount
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'1e1f1c303dc025bd664acb72e583e933fae4cff9148bf78c157d1e8f78530aea', # sighash (result)
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),
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(
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"P2SH-P2WSH ANYONECANPAY|SIGNLE", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#p2sh-p2wsh
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'010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84c138dbbd3c3ee41588ac00000000',
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'cf56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae', # scriptCode
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0, # input index
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'36641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff', # outpoint
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0x81, # sigHash typr
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'b168de3a00000000', # amount
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'2a67f03e63a6a422125878b40b82da593be8d4efaafe88ee528af6e5a9955c6e', # sighash (result)
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),
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(
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"P2SH-P2WSH ANYONECANPAY|NONE", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#p2sh-p2wsh
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'010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84c138dbbd3c3ee41588ac00000000',
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'cf56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae', # scriptCode
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0, # input index
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'36641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff', # outpoint
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0x82, # sigHash typr
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'b168de3a00000000', # amount
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'781ba15f3779d5542ce8ecb5c18716733a5ee42a6f51488ec96154934e2c890a', # sighash (result)
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),
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(
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"P2SH-P2WSH AYONECANPAY|SIGNLE", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#p2sh-p2wsh
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'010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84c138dbbd3c3ee41588ac00000000',
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'cf56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae', # scriptCode
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0, # input index
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'36641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e0100000000ffffffff', # outpoint
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0x83, # sigHash typr
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'b168de3a00000000', # amount
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'511e8e52ed574121fc1b654970395502128263f62662e076dc6baf05c2e6a99b', # sighash (result)
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),
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(
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"No FindAndDelete", # https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki#no-findanddelete
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'010000000169c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1ac8387f14c1d000000ffffffff0101000000000000000000000000',
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'4aad4830450220487fb382c4974de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf95feb48f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e01',
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# scriptCode
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0, # input index
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'69c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1ac8387f14c1d000000ffffffff', # outpoint
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0x01, # sigHash typr
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'400d030000000000', # amount
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'71c9cd9b2869b9c70b01b1f0360c148f42dee72297db312638df136f43311f23', # sighash (result)
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),
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]
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for name, unsigned_tx, scriptCode, idx, outpoint, sighash_type, amount, sighash in BIP143_DATA:
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unsigned = a2b_hex(unsigned_tx)
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fd = SFFile(0, max_size=65536)
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list(fd.erase())
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fd.write(b'psbt\xff\x01\x00' + ser_compact_size(len(unsigned)) + unsigned + (b'\0'*8))
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psbt_len = fd.tell()
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rfd = SFFile(0, psbt_len)
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p = psbtObject.read_psbt(rfd)
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#p.validate() # failed because no subpaths; don't care
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amt = unpack("<q", a2b_hex(amount))[0]
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sc = a2b_hex(scriptCode)
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outpt = a2b_hex(outpoint)
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replacement = CTxIn()
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replacement.deserialize(BytesIO(outpt))
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digest = p.make_txn_segwit_sighash(idx, replacement, amt, sc, sighash_type)
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got = b2a_hex(digest).decode('ascii')
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assert digest == a2b_hex(sighash), "%s\nExpected %s\nGot %s" % (name, sighash, got)
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print(name, "OK")
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