SmartAccountSignature

Base sealed class for smart account signature types.

Smart accounts support multiple signature types for transaction authorization:

• WebAuthnSignature: Signatures from passkeys (biometric authentication)

• Ed25519Signature: Signatures from traditional Ed25519 keypairs

• PolicySignature: Policy-based authorization (empty map)

Each signature type can be converted to a Soroban SCVal representation that the smart account contract can verify, and to a ByteArray that is embedded directly in the on-wire auth-payload signers map via toAuthPayloadBytes.

Example usage:

val signature = WebAuthnSignature(
    authenticatorData = authenticatorDataBytes,
    clientData = clientDataBytes,
    signature = signatureBytes
)
val scVal = signature.toScVal()
val payloadBytes = signature.toAuthPayloadBytes()

Inheritors