import sjcl from "sjcl";
interface EncryptionParams {
    ts: number;
    cs: number;
}
/**
 * AES-GCM TransformStream
 */
export declare class StreamEncryption {
    #private;
    constructor(key: string | sjcl.BitArray | undefined, iv: string | sjcl.BitArray | undefined, params?: EncryptionParams | string);
    /**
     * Return formatted encryption key
     */
    getKey(): string;
    /**
     * Get encryption params
     */
    getParams(): {
        ts: number;
        cs: number;
    };
    /**
     * Get encryption TransformStream
     */
    getEncryptionTransform(): TransformStream<any, any>;
    /**
     * Get decryption TransformStream
     */
    getDecryptionTransform(): TransformStream<any, any>;
    _getCryptoStream(mode: number): TransformStream<any, any>;
}
export {};
//# sourceMappingURL=stream-encryption.d.ts.map