/// <reference types="node" />
/// <reference types="bytebuffer" />
/**
 * Provide all features to sign and verify payloads.
 */
export interface IPayloadSigner {
    /**
     * Get the signature of a payload as a string
     *
     * @param payload The payload to sign
     * @param passphrase The passphrase to use to sign the payload
     */
    sign(passphrase: string): string;
    /**
     * Verify the signature a designated payload
     *
     * @param payload The payload we want to verify the signature
     * @param signature The signature to check
     * @param publicKey The public to check the signature emitter
     */
    verify(signature: Buffer | string, publicKey: string): boolean;
}
export declare abstract class AbstractPayloadSigner<T> implements IPayloadSigner {
    protected payload: T;
    constructor(payload: T);
    sign(passphrase: string): string;
    verify(signature: Buffer | string, publicKey: string): boolean;
    abstract serialize(): ByteBuffer;
    private getPayloadHashBuffer;
}
/**
 * Provide all features to compute payload hash buffer.
 */
export interface IPayloadHashBuffer {
    /**
     * Function to compute payload hash buffer to an hex string.
     */
    getPayloadHashBuffer(): string;
}