import { EncryptedHeader } from "./interfaces/encrypted_header";
import { Policy } from "./interfaces/policy";
/**
 * This class exposes the CoverCrypt primitives.
 *
 */
export declare class CoverCryptHybridEncryption {
    private readonly _publicKey;
    private readonly _policy;
    constructor(policy: Policy, publicKey: Uint8Array);
    get policy(): Policy;
    get publicKey(): Uint8Array;
    /**
     * Generate and encrypt a symmetric key using the public key and policy.
     * @param {string} accessPolicy Encrypt with this access policy
     * @param {object} options Additional optional options to the encryption
     * @param {Uint8Array} options.headerMetadata Data encrypted in the header
     * @param {Uint8Array} options.authenticationData Data use to authenticate the encrypted value when decrypting (if use, should be use during
     * @returns {Uint8Array} encrypted header
     */
    encryptHybridHeader(accessPolicy: string, options?: {
        headerMetadata?: Uint8Array;
        authenticationData?: Uint8Array;
    }): EncryptedHeader;
    /**
     * Encrypts a AES256-GCM block
     * @param {Uint8Array} symmetricKey Symmetric key to use to encrypt
     * @param {Uint8Array} plaintext Stuff to encrypt
     * @param {object} options Additional optional options to the encryption
     * @param {Uint8Array} options.authenticationData Data use to authenticate the encrypted value when decrypting (if use, should be use during decryption)
     * @returns {Uint8Array} encrypted block
     */
    encryptBlock(symmetricKey: Uint8Array, plaintext: Uint8Array, options?: {
        authenticationData?: Uint8Array;
    }): Uint8Array;
    /**
     * Hybrid encrypt wrapper: CoverCrypt encrypt then AES encrypt
     * @param {string} accessPolicy Encrypt with this access policy
     * @param {Uint8Array} plaintext Stuff to encrypt
     * @param {object} options Additional optional options to the encryption
     * @param {Uint8Array} options.headerMetadata Data encrypted in the header
     * @param {Uint8Array} options.authenticationData Data use to authenticate the encrypted value when decrypting (if use, should be use during decryption)
     * @returns {Uint8Array} encrypted
     */
    encrypt(accessPolicy: string, plaintext: Uint8Array, options?: {
        headerMetadata?: Uint8Array;
        authenticationData?: Uint8Array;
    }): Uint8Array;
}
/**
 * Hybrid encrypt wrapper: CoverCrypt encrypt then AES encrypt
 * @param {Policy} policy CoverCrypt global policy
 * @param {Uint8Array} publicKey Master public key
 * @param {string} accessPolicy Encrypt with this access policy
 * @param {Uint8Array} plaintext Stuff to encrypt
 * @param {object} options Additional optional options to the encryption
 * @param {Uint8Array} options.headerMetadata Data encrypted in the header
 * @param {Uint8Array} options.authenticationData Data use to authenticate the encrypted value when decrypting (if use, should be use during decryption)
 * @returns {Uint8Array} encrypted
 */
export declare function encrypt(policy: Policy, publicKey: Uint8Array, accessPolicy: string, plaintext: Uint8Array, options?: {
    headerMetadata?: Uint8Array;
    authenticationData?: Uint8Array;
}): Uint8Array;
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