import { Nonce } from './nonce.js';
export declare class AuthenticationFailure extends Error {
}
export interface AEAD {
    readonly NAME: string;
    readonly KEYBYTES: number;
    readonly NONCEBYTES: number;
    readonly TAGBYTES: number;
    encrypt_detached(plaintext: Uint8Array, ciphertext: Uint8Array, messagelength: number, tag: Uint8Array, key: DataView, nonce: Nonce, associated_data?: Uint8Array): void;
    encrypt(plaintext: Uint8Array, key: DataView, nonce: Nonce, associated_data?: Uint8Array): Uint8Array;
    decrypt_detached(plaintext: Uint8Array, ciphertext: Uint8Array, messagelength: number, expected_tag: Uint8Array, key: DataView, nonce: Nonce, associated_data?: Uint8Array): boolean;
    decrypt(ciphertextAndTag: Uint8Array, key: DataView, nonce: Nonce, associated_data?: Uint8Array): Uint8Array;
}
export declare function _encrypt(this: AEAD, plaintext: Uint8Array, key: DataView, nonce: Nonce, associated_data?: Uint8Array): Uint8Array;
export declare function _decrypt(this: AEAD, ciphertextAndTag: Uint8Array, key: DataView, nonce: Nonce, associated_data?: Uint8Array): Uint8Array;
export { ChaCha20Poly1305_RFC8439 } from './aead/chacha20poly1305.js';