(script, txTo, inIdx, hashtype, amount, enable_sighash_rangeproof=True)
| 812 | # Note that this corresponds to sigversion == 1 in EvalScript, which is used |
| 813 | # for version 0 witnesses. |
| 814 | def SegwitV0SignatureMsg(script, txTo, inIdx, hashtype, amount, enable_sighash_rangeproof=True): |
| 815 | |
| 816 | hashPrevouts = 0 |
| 817 | hashSequence = 0 |
| 818 | hashIssuance = 0 |
| 819 | hashOutputs = 0 |
| 820 | hashRangeproofs = 0 |
| 821 | |
| 822 | if not (hashtype & SIGHASH_ANYONECANPAY): |
| 823 | serialize_prevouts = bytes() |
| 824 | for i in txTo.vin: |
| 825 | serialize_prevouts += i.prevout.serialize() |
| 826 | hashPrevouts = uint256_from_str(hash256(serialize_prevouts)) |
| 827 | |
| 828 | if (not (hashtype & SIGHASH_ANYONECANPAY) and (hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE): |
| 829 | serialize_sequence = bytes() |
| 830 | for i in txTo.vin: |
| 831 | serialize_sequence += struct.pack("<I", i.nSequence) |
| 832 | hashSequence = uint256_from_str(hash256(serialize_sequence)) |
| 833 | |
| 834 | if not (hashtype & SIGHASH_ANYONECANPAY): |
| 835 | serialize_issuance = bytes() |
| 836 | # TODO actually serialize issuances |
| 837 | for inp in txTo.vin: |
| 838 | if inp.assetIssuance.isNull(): |
| 839 | serialize_issuance += b'\x00' |
| 840 | else: |
| 841 | serialize_issuance += inp.assetIssuance.serialize() |
| 842 | hashIssuance = uint256_from_str(hash256(serialize_issuance)) |
| 843 | |
| 844 | if ((hashtype & 0x1f) != SIGHASH_SINGLE and (hashtype & 0x1f) != SIGHASH_NONE): |
| 845 | serialize_outputs = bytes() |
| 846 | for o in txTo.vout: |
| 847 | serialize_outputs += o.serialize() |
| 848 | hashOutputs = uint256_from_str(hash256(serialize_outputs)) |
| 849 | |
| 850 | if enable_sighash_rangeproof and hashtype & SIGHASH_RANGEPROOF: |
| 851 | serialize_rangeproofs = bytes() |
| 852 | for wit in txTo.wit.vtxoutwit: |
| 853 | serialize_rangeproofs += ser_string(wit.vchRangeproof) + ser_string(wit.vchSurjectionproof) |
| 854 | hashRangeproofs = uint256_from_str(hash256(serialize_rangeproofs)) |
| 855 | |
| 856 | elif ((hashtype & 0x1f) == SIGHASH_SINGLE and inIdx < len(txTo.vout)): |
| 857 | serialize_outputs = txTo.vout[inIdx].serialize() |
| 858 | hashOutputs = uint256_from_str(hash256(serialize_outputs)) |
| 859 | |
| 860 | if enable_sighash_rangeproof and hashtype & SIGHASH_RANGEPROOF: |
| 861 | serialize_rangeproofs = b'\x00' |
| 862 | if len(txTo.wit.vtxoutwit) > inIdx: |
| 863 | wit = txTo.wit.vtxoutwit[inIdx] |
| 864 | serialize_rangeproofs = ser_string(wit.vchRangeproof) + ser_string(wit.vchSurjectionproof) |
| 865 | hashRangeproofs = uint256_from_str(hash256(serialize_rangeproofs)) |
| 866 | |
| 867 | ss = bytes() |
| 868 | ss += struct.pack("<i", txTo.nVersion) |
| 869 | ss += ser_uint256(hashPrevouts) |
| 870 | ss += ser_uint256(hashSequence) |
| 871 | ss += ser_uint256(hashIssuance) |
no test coverage detected