MagicCrypt. MagicCrypt is a Java/PHP/NodeJS/Rust library to encrypt/decrpyt strings, files, or data, using Data Encryption Standard(DES) or Advanced Encryption Standard(AES) algorithms. It supports CBC block cipher mode, PKCS5 padding and 64, 128, 192 or 256-bits key length. If the encrypted data is a string, it will be formatted automatically to Base64.