Expand description
Signature hash implementation (used in transaction signing).
Efficient implementation of the algorithm to compute the message to be signed according to Bip341, Bip143 and legacy (before Bip143).
Computing signature hashes is required to sign a transaction and this module is designed to
handle its complexity efficiently. Computing these hashes is as simple as creating
SighashCache
and calling its methods.
Structs§
- The
Annex
struct is a slice wrapper enforcing first byte is0x50
. - Integer is not a consensus valid sighash type.
- Hash of a transaction according to the legacy signature algorithm.
- This type is consensus valid but an input including it would prevent the transaction from being relayed on today’s Bitcoin network.
- A single prevout was been provided but all prevouts are needed without
ANYONECANPAY
. - The number of supplied prevouts differs from the number of inputs in the transaction.
- Information related to the script path spending.
- Hash of a transaction according to the segwit version 0 signature algorithm.
- Efficiently calculates signature hash message for legacy, segwit and taproot inputs.
- Error returned for failure during parsing one of the sighash types.
- Using
SIGHASH_SINGLE
requires an output at the same index as the input. - Taproot-tagged hash with tag "TapSighash".
- The tag used for
TapSighash
Enums§
- Annex must be at least one byte long and the first bytes must be
0x50
. - Hashtype of an input’s signature, encoded in the last byte of the signature.
- Result of
SighashCache::legacy_encode_signing_data_to
. - Error computing a P2WPKH sighash.
- Contains outputs of previous transactions. In the case
TapSighashType
variant isSIGHASH_ANYONECANPAY
,Prevouts::One
may be used. Prevouts
index related errors.- Error returned when writing signing data fails.
- Hashtype of an input’s signature, encoded in the last byte of the signature. Fixed values so they can be cast as integer types for encoding.
- Error computing a taproot sighash.