import { BufferAndString, IDecryptionOptions, IToBufferOptions } from '../typings';
/**
 * decrypt the encrypted data from strong-cryptor
 * @param {string} encryptedData encrypted string
 * @param {string} key (or secret) is 256bits (32 charcters) that used to encrypt dan decrypt the data (must be same with the encryption process), please store it in the safe places
 * @param {IDecryptionOptions} options decryption options, see [[IDecryptionOptions]] for more details
 * @returns {string|Buffer} return decrypted string/Buffer
 */
export declare function decrypt<T extends IToBufferOptions>(encryptedString: string, key: string, options?: T & IDecryptionOptions): BufferAndString<T>;
/**
 * decrypt file that already encrypted from strong-cryptor
 * @param {string} filePath path to file
 * @param {string} key (or secret) is 256bits (32 charcters) that used to encrypt dan decrypt the data (must be same with the encryption process), please store it in the safe places
 * @param {IDecryptionOptions} options decryption options, see [[IDecryptionOptions]] for more details
 * @returns {string|Buffer} return decrypted string/Buffer
 */
export declare function decryptFile<T extends Required<IToBufferOptions>>(filePath: string, key: string, options?: Partial<T> & IDecryptionOptions): BufferAndString<T>;