export declare const xor: (a: Uint8Array, b: Uint8Array) => Uint8Array;
export declare const parity: (a: Uint8Array) => number;
export declare class ElGamal {
    static publicKeyLength: number;
    static privateKeyLength: number;
    static plainTextLength: number;
    static cipherTextLength: number;
    encrypt: (msg: Uint8Array, pubkey: Uint8Array) => Uint8Array;
    decrypt: (cipher: Uint8Array, privkey: Uint8Array) => Uint8Array;
}
export declare class ExtendedElGamal {
    static publicKeyLength: number;
    static privateKeyLength: number;
    static blockLength: number;
    static plainTextLength: number;
    static cipherTextLength: number;
    constructor();
    private _enc;
    private _dec;
    encrypt: (m: Uint8Array, pubkey: Uint8Array) => Uint8Array;
    decrypt: (c: Uint8Array, privkey: Uint8Array) => Uint8Array;
}