SchnorrSignature class
Pure Dart implementation of Schnorr signatures (BIP-340).
Schnorr signatures are used by Bitcoin Taproot (P2TR) outputs and provide several advantages over ECDSA:
- Smaller signature size (64 bytes vs 71-72 bytes)
- Provable security under the random oracle model
- Native support for signature aggregation (MuSig)
This implementation follows BIP-340 specification exactly.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
generateKeyPair(
) → SchnorrKeyPair - Generates a new Schnorr key pair.
-
getPublicKey(
Uint8List privateKey) → Uint8List - Derives the x-only public key from a private key.
-
sign(
Uint8List messageHash, Uint8List privateKey) → Uint8List - Signs a 32-byte message hash with BIP-340 Schnorr signature.
-
tweakPublicKey(
Uint8List publicKey, Uint8List tweak) → Map< String, dynamic> ? - Tweaks a public key according to BIP-341 (Taproot).
-
verify(
Uint8List signature, Uint8List messageHash, Uint8List publicKey) → bool - Verifies a BIP-340 Schnorr signature.