Some of the features of AES4D are: Performs 256-bit AES encryption and decryption. Includes cryptographically secure pseudo random number generator. Does key generation from password phrases. Encrypts and decrypt files, strings, and byte data. Supports PKCS7 padding. Supports initialization vectors. Supports CBC (Cipher Block Chaining) mode. Supports ECB (Electronic Cookbook) mode. Supports SHA-256 cryptographic hash algorithm. Does random byte data generation. Allows concurrent encryption/decryption threads. Validated using "known answer tests" published by the National Institute of Standards and Technology. Comes with both 32-bit and 64-bit DLLs. Can be used by C, C++, C#, Delphi, Visual Basic, Power BASIC, FoxPro, dBase, XBase, and OBOL. Makes calls to Windows API functions only. Works on Windows XP through Windows 10.