new BIP341()
- Description:
BIP341 - Taproot Sighash Calculator
- Source:
Methods
(static) calculate(tx, inputIndex, prevouts, sighashTypeopt, annexopt) → {Buffer}
- Description:
Calculate BIP341 sighash for Taproot key-path spending
- Source:
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
tx |
Object | Transaction object |
||
inputIndex |
number | Input being signed |
||
prevouts |
Array | Previous outputs (with value and scriptPubKey) |
||
sighashType |
number |
<optional> |
0x00
|
Sighash type (DEFAULT=0x00) |
annex |
Buffer |
<optional> |
null
|
Optional annex |
Returns:
32-byte sighash
- Type
- Buffer
(static) forScriptPath(tx, inputIndex, prevouts, tapLeafHash, keyVersion, sighashTypeopt, annexopt) → {Buffer}
- Description:
Calculate sighash for Taproot script-path spending
- Source:
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
tx |
Object | Transaction object |
||
inputIndex |
number | Input index |
||
prevouts |
Array | Previous outputs |
||
tapLeafHash |
Buffer | Leaf hash (tapleaf_hash) |
||
keyVersion |
Buffer | Key version (0x00 for internal key) |
||
sighashType |
number |
<optional> |
0x00
|
Sighash type |
annex |
Buffer |
<optional> |
null
|
Optional annex |
Returns:
32-byte sighash
- Type
- Buffer
(static) shaAmounts(prevouts) → {Buffer}
- Description:
Calculate sha_amounts for Taproot
- Source:
Parameters:
| Name | Type | Description |
|---|---|---|
prevouts |
Array | Previous outputs with values |
Returns:
32-byte hash
- Type
- Buffer
(static) shaOutputs(outputs) → {Buffer}
- Description:
Calculate sha_outputs for Taproot
- Source:
Parameters:
| Name | Type | Description |
|---|---|---|
outputs |
Array | Transaction outputs |
Returns:
32-byte hash
- Type
- Buffer
(static) shaPrevouts(inputs) → {Buffer}
- Description:
Calculate sha_prevouts for Taproot
- Source:
Parameters:
| Name | Type | Description |
|---|---|---|
inputs |
Array | Transaction inputs |
Returns:
32-byte hash
- Type
- Buffer
(static) shaScriptPubkeys(prevouts) → {Buffer}
- Description:
Calculate sha_scriptpubkeys for Taproot
- Source:
Parameters:
| Name | Type | Description |
|---|---|---|
prevouts |
Array | Previous outputs with scriptPubKeys |
Returns:
32-byte hash
- Type
- Buffer
(static) shaSequences(inputs) → {Buffer}
- Description:
Calculate sha_sequences for Taproot
- Source:
Parameters:
| Name | Type | Description |
|---|---|---|
inputs |
Array | Transaction inputs |
Returns:
32-byte hash
- Type
- Buffer