/**
 * Signing function for Hyperledger Fabric
 *
 * Example for usage can be found under test directory
 */
/// <reference types="node" />
export declare class CryptoSigner {
    signECDSAp256(msgHash: string, privKeyPEM: string): Buffer;
    verifyECDSAp256(msgHash: string, signature: Buffer, pubKeyPEM: string): boolean;
    private _preventECDSAp256Malleability;
}