/**
 * @license
 * Copyright 2023 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { PbHpkeKeyFormat, PbHpkeParams, PbHpkePrivateKey, PbHpkePublicKey } from '../../../internal/proto';
/** Validate HPKE params. */
export declare function validateParams(params: PbHpkeParams): void;
/** Validate HPKE key format. */
export declare function validateKeyFormat(keyFormat: PbHpkeKeyFormat): void;
/** Validate HPKE public key. */
export declare function validatePublicKey(key: PbHpkePublicKey, publicKeyManagerVersion: number): void;
/** Validate HPKE private key. */
export declare function validatePrivateKey(key: PbHpkePrivateKey, privateKeyManagerVersion: number, publicKeyManagerVersion: number): void;