import * as crypto from "crypto";
export declare class Encryption {
    static encryptRequest(key: string, body: unknown): Promise<{
        encrypted_body: string;
    }>;
    static encryptAES256(b64Key: string, clearText: string): Promise<{
        encrypted_body: string;
    }>;
    static encryptSafeKeys(headers: any, b64Key: string): void;
    static decryptResponse(key: string, body: any): Promise<any>;
    static decryptAES256(b64cipherText: string, b64IV: string, b64Key: string): Promise<any>;
}
export declare class Signing {
    static sha256Hash(inputString: string): Promise<ArrayBuffer>;
    static signRequest(path: string, appName: string, sessionKey: string, body?: {
        [key: string]: unknown;
    }): Promise<{
        [k: string]: string;
    }>;
    static verifySignature(headers: {
        [k: string]: string;
    }, path: string, appName: string, keys: string[], body?: object): Promise<boolean>;
    static signSaltWithPasswordKey(sessionSalt: string, passwordKey: string): Promise<string>;
    static hmacSign(inputString: string, b64Key: string, b64InputString?: boolean): Promise<string>;
}
export declare class Keys {
    static generatePasswordKey(username: string, clearTextPassword: string): Promise<string>;
    static generateCardholderSafeKey(username: string): Promise<string>;
    static makeECDHkeyPair(): Promise<crypto.ECDH | CryptoKeyPair>;
    static makeECDHPublicKey(myKeyPair: any): Promise<any>;
    static makeECDHSecretKey(b64serverPublicKey: any, myKeyPair: any): Promise<any>;
    static sha256pbkdf2(clearTextPassword: string, salt: any, rounds: number): Promise<ArrayBuffer>;
}