export declare const SYMMETRIC_KEY_SIZE = 32;
export declare class Metadata {
    private _uid;
    private _additionalData?;
    get uid(): Uint8Array;
    set uid(value: Uint8Array);
    get additionalData(): Uint8Array | undefined;
    set additionalData(value: Uint8Array | undefined);
    constructor(uid: Uint8Array, additionalData?: Uint8Array);
    /**
     * This function convert Metadata to JSON Metadata and returns the corresponding bytes
     *
     * @returns {Uint8Array} a byte array of the JSON encoding Metadata
     */
    toJsonEncoded(): Uint8Array;
}
export declare class AbeEncryptionParameters {
    private _attributes;
    private _metadata;
    constructor(attributes: string[], metadata: Metadata);
    get attributes(): string[];
    set attributes(value: string[]);
    get metadata(): Metadata;
    set metadata(value: Metadata);
}
//# sourceMappingURL=encryption_parameters.d.ts.map