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AES encryption library that does 256 bit AES (Rijndael) encryption and decryption, Supports CBC and ECB mode, initialization vectors, PKCS7 padding, and Diffie-Hellman key exchange. Works with many C/C++ compilers including Microsoft C/C++ 4 and 6, Microsoft Visual Studio through 2022, MinGW GCC, Digital Mars, Watcom, LCC, and Borland. Works with Win32/Win64 through Windows 2011. Validated against the U.S. National Institute of Standards and Technology (NIST) "known answers" data set. Features of AES4C include: - Performs 256-bit AES encryption and decryption. - Includes Diffie-Hellman key exchange functions. - 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. - Includes multiple C/C++ example programs. - Does not depend on support libraries (calls to core Windows API functions only). - Royalty free distribution with your compiled application. - C source code is available. - Free technical support and updates for one year. - Fully functional evaluation version available. - Supports most C/C++ compilers: Microsoft, Borland, Watcom, LCC, GCC, Digital Mars. - Supports all versions of 32-bit and 64-bit Microsoft C/C++ and Visual Studio C/C++. - Includes 32-bit and 64-bit DLL files plus OBJ files for static linking. - Works with 32-bit and 64-bit Windows through Windows 11