Changes in earlier versions

CryptoSys API Library Manual

Changes in Version 4.2:

Compiled using VS2008 for both Win32 and X64, with legacy fix for older W9x and NT4 systems.
Added Galois/Counter Mode (GCM) authenticated encryption and GMAC authentication. See the GCM functions; e.g. GCM_Encrypt.
Added RIPEMD-160 message digest to generic HASH and HMAC functions.
Improved the performance of the WIPE_File function - up to three times faster for large files.
New format CHM manual

Changes in Version 4.1:

Added key wrap functions with AES and Triple DES.
Added SHA-224 message digest to generic HASH and HMAC functions.
Upgraded password key derivation PBKDF2 functions to include SHA-2 hash functions as per PKCS#5 v2.1.
Includes executables compiled for Windows 64-bit (x64) computers.
Carried out an expensive product rebrand (well, we changed the colour of the CryptoSys API logo).

Changes in Version 4.0:

Added generic HASH functions to provide SHA-384 and SHA-512 as well as existing hash digest functions.
Added generic MAC functions to provide HMAC and CMAC message authentication code algorithms.
Introduced new random number generator to strict NIST SP800-90 specification.

Changes in Version 3.2:

Added CFB, OFB and CTR modes for all block ciphers. See Block Cipher Modes.
Added padding and unpadding functions for block ciphers. See Padding Functions.
Introduced the .NET class library as a more convenient and safer interface for C# and VB.NET programmers. Interface source code in C# is included.
Added hex version of password key derivation and RC4-compatible stream cipher functions PBE_Kdf2Hex and PC1_Hex.
Added base64 support for block ciphers, e.g. AES128_B64Mode.
Added base64 conversion functions CNV_BytesFromB64Str and CNV_B64StrFromBytes.
Various minor speed tweaks and improvements in error handling and thread local storage.