highperfocused/lnd
1
0
Fork 0
mirror of https://github.com/lightningnetwork/lnd.git synced 2025-08-31 08:02:25 +02:00
Code Issues Packages Projects Releases Wiki Activity

lnd+server+keychain: remove unused code

Browse Source
This commit is contained in:
Oliver Gugger
2020-04-28 10:06:35 +02:00
parent 08d6a61e2a
commit 36b90382d3
5 changed files with 2 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
keychain/btcwallet.go
View File

@@ -347,33 +347,6 @@ func (b *BtcWalletKeyRing) DerivePrivKey(keyDesc KeyDescriptor) (
return key, nil
}
// ScalarMult performs a scalar multiplication (ECDH-like operation) between
// the target key descriptor and remote public key. The output returned will be
// the sha256 of the resulting shared point serialized in compressed format. If
// k is our private key, and P is the public key, we perform the following
// operation:
//
// sx := k*P s := sha256(sx.SerializeCompressed())
//
// NOTE: This is part of the keychain.SecretKeyRing interface.
func (b *BtcWalletKeyRing) ScalarMult(keyDesc KeyDescriptor,
pub *btcec.PublicKey) ([]byte, error) {
privKey, err := b.DerivePrivKey(keyDesc)
if err != nil {
return nil, err
}
s := &btcec.PublicKey{}
x, y := btcec.S256().ScalarMult(pub.X, pub.Y, privKey.D.Bytes())
s.X = x
s.Y = y
h := sha256.Sum256(s.SerializeCompressed())
return h[:], nil
}
// ECDH performs a scalar multiplication (ECDH-like operation) between the
// target key descriptor and remote public key. The output returned will be
// the sha256 of the resulting shared point serialized in compressed format. If

10
keychain/derivation.go
View File

@@ -186,16 +186,6 @@ type SecretKeyRing interface {
// MaxKeyRangeScan keys. In order for this to work, the caller MUST set
// the KeyFamily within the partially populated KeyLocator.
DerivePrivKey(keyDesc KeyDescriptor) (*btcec.PrivateKey, error)
// ScalarMult performs a scalar multiplication (ECDH-like operation)
// between the target key descriptor and remote public key. The output
// returned will be the sha256 of the resulting shared point serialized
// in compressed format. If k is our private key, and P is the public
// key, we perform the following operation:
//
// sx := k*P
// s := sha256(sx.SerializeCompressed())
ScalarMult(keyDesc KeyDescriptor, pubKey *btcec.PublicKey) ([]byte, error)
}
// DigestSignerRing is an interface that abstracts away basic low-level ECDSA