| AES | Pure-PHP implementation of AES. |
| Base | Base Class for all \phpseclib\Crypt\* cipher classes |
| Blowfish | Pure-PHP implementation of Blowfish. |
| DES | Pure-PHP implementation of DES. |
| Hash | Pure-PHP implementations of keyed-hash message authentication codes (HMACs) and various cryptographic hashing functions. |
| Random | Pure-PHP Random Number Generator |
| RC2 | Pure-PHP implementation of RC2. |
| RC4 | Pure-PHP implementation of RC4. |
| Rijndael | Pure-PHP implementation of Rijndael. |
| RSA | Pure-PHP PKCS#1 compliant implementation of RSA. |
| TripleDES | Pure-PHP implementation of Triple DES. |
| Twofish | Pure-PHP implementation of Twofish. |