/// <reference types="node" />
import AbstractBufferAeadAesCcm from './AbstractBufferAeadCcm';
import DecryptionInput from 'lib/types/DecryptionInput';
import EncryptionInput from 'lib/types/EncryptionInput';
import EncryptionOutput from 'lib/types/EncryptionOutput';
declare class BufferAeadXchacha20Poly1305 extends AbstractBufferAeadAesCcm {
    constructor();
    encrypt(input: EncryptionInput): EncryptionOutput;
    decrypt(input: DecryptionInput): Buffer;
    private static tweakKeyAndNonce;
}
export default BufferAeadXchacha20Poly1305;