/**
 * @fileoverview ILedgerSigner interface.
 *
 * Minimal signing interface that accepts Uint8Array for browser compatibility.
 * Decoupled from IMemberOperational but compatible with it via MemberSignerAdapter.
 *
 * @see Design: Block Chain Ledger — ILedgerSigner
 * @see Requirements 3.4
 */
import { SignatureUint8Array } from '@digitaldefiance/ecies-lib';
/**
 * A minimal signing interface for ledger entries.
 *
 * Any entity possessing a SECP256k1 key pair that can produce SignatureUint8Array
 * values satisfies this interface.
 */
export interface ILedgerSigner {
    /** The signer's public key as raw bytes. */
    readonly publicKey: Uint8Array;
    /** Sign the given data and return a SECP256k1 signature. */
    sign(data: Uint8Array): SignatureUint8Array;
}
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