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https://github.com/btcsuite/btcd.git
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6fc4199ee4
In this commit, we add a new function `RawTxInTapscriptSignature` that will be used to generate signatures in the _tapscript_ context. Note that this differs from top-level taproot as a distinct sighash is used, and we _always_ accept a root hash to perform the proper tweak.
38 lines
1.2 KiB
Go
38 lines
1.2 KiB
Go
// Copyright (c) 2013-2016 The btcsuite developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package btcec
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import (
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secp "github.com/decred/dcrd/dcrec/secp256k1/v4"
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)
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// PrivateKey wraps an ecdsa.PrivateKey as a convenience mainly for signing
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// things with the the private key without having to directly import the ecdsa
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// package.
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type PrivateKey = secp.PrivateKey
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// PrivKeyFromBytes returns a private and public key for `curve' based on the
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// private key passed as an argument as a byte slice.
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func PrivKeyFromBytes(pk []byte) (*PrivateKey, *PublicKey) {
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privKey := secp.PrivKeyFromBytes(pk)
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return privKey, privKey.PubKey()
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}
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// NewPrivateKey is a wrapper for ecdsa.GenerateKey that returns a PrivateKey
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// instead of the normal ecdsa.PrivateKey.
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func NewPrivateKey() (*PrivateKey, error) {
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return secp.GeneratePrivateKey()
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}
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// PrivKeyFromScalar instantiates a new private key from a scalar encoded as a
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// big integer.
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func PrivKeyFromScalar(key *ModNScalar) *PrivateKey {
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return &PrivateKey{Key: *key}
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}
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// PrivKeyBytesLen defines the length in bytes of a serialized private key.
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const PrivKeyBytesLen = 32
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