Changes in earlier versions

CryptoSys API Library Manual

Changes in Version 4.4:

Added a full set of VB.NET examples to this manual with cross references.
Improved the level of detail for all .NET Classes and Methods with full cross references to the new examples and the equivalent VB6/C functions.
Added new .NET methods to handle base64 strings in a safe manner and to convert directly between hex and base64 encodings: Cnv.FromBase64, Cnv.ToBase64, Cnv.Base64Filter, Cnv.Base64FromHex, Cnv.HexFromBase64, and Cnv.StringFromBase64.
Fixed issue with CNV_HexFilter and non-ASCII characters,
Improved the way the Secure Random Number Generator gathers entropy across threads.

Changes in Version 4.3:

All DLL executables are now signed with our code authentication certificate.
Added functions to detect the platform of the underlying DLL. See Detecting Win32 or X64 platform, General.IsWin64 Method and General.Platform Method.
Various minor speed tweaks.
Updated this manual with the List of .NET Methods and Cross-reference between Functions and .NET Methods.

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.