export interface ISignature {
    signature: string;
    serialized: string;
    data: Uint8Array;
    keySize: number;
}
export declare function signWithPrivateKey(privateKeyPem: string, data: Uint8Array): ISignature;
export declare function loadRsaSignature(serializedPayload: string): ISignature;
export declare function verifyWithPublicKey(publicKeyPem: string, signatureObj: ISignature): boolean;