@hpke/chacha20poly1305/esm/src/chacha20Poly1305.d.ts

A Hybrid Public Key Encryption (HPKE) module extension for ChaCha20/Poly1305

import type { AeadEncryptionContext, AeadInterface } from "@hpke/common";
import { AeadId } from "@hpke/common";
export declare class Chacha20Poly1305Context implements AeadEncryptionContext {
    private _key;
    constructor(key: ArrayBuffer);
    seal(iv: ArrayBuffer, data: ArrayBuffer, aad: ArrayBuffer): Promise<ArrayBuffer>;
    open(iv: ArrayBuffer, data: ArrayBuffer, aad: ArrayBuffer): Promise<ArrayBuffer>;
    private _seal;
    private _open;
}
/**
 * The ChaCha20Poly1305 for HPKE AEAD implementing {@link AeadInterface}.
 *
 * When using `@hpke/core`, the instance of this class can be specified
 * to the `aead` parameter of {@link CipherSuiteParams} instead of `AeadId.Chacha20Poly1305`
 * as follows:
 *
 * @example
 *
 * ```ts
 * import {
 *   CipherSuite,
 *   DhkemP256HkdfSha256,
 *   HkdfSha256,
 * } from "@hpke/core";
 * import {
 *   Chacha20Poly1305,
 * } from "@hpke/chacha20poly1305";
 *
 * const suite = new CipherSuite({
 *   kem: new DhkemP256HkdfSha256(),
 *   kdf: new HkdfSha256(),
 *   aead: new Chacha20Poly1305(),
 * });
 * ```
 *
 * This class is implemented using
 * {@link https://github.com/paulmillr/noble-ciphers | @noble/ciphers}.
 */
export declare class Chacha20Poly1305 implements AeadInterface {
    /** AeadId.Chacha20Poly1305 (0x0003) */
    readonly id: AeadId;
    /** 32 */
    readonly keySize: number;
    /** 12 */
    readonly nonceSize: number;
    /** 16 */
    readonly tagSize: number;
    createEncryptionContext(key: ArrayBuffer): AeadEncryptionContext;
}
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