Download : Programming : Active X : Strong encryption decryption for Windows apps 
Easily add strong encryption and decryption to your Windows applications  Windows Software $299.95. Xceed Encryption Library is an ActiveX component that allows Windows applications to encrypt and decrypt data using the latest industry standard strong encryption algorithms. It supports traditional secretkey encryption as well as publickey encryption, and can encrypt/decrypt memory buffers, strings, blobs, streaming data or files. For traditional strong encryption, the library supports the newly adopted AES (US Advanced Encryption Standard) secretkey encryption algorithm (Rijndael), which uses 128, 192 or 256bit keys. It also supports the Twofish encryption algorithm, a runnerup for AES.
Xceed Encryption Library 1.1 17Dec03 English 23.9 MB
For publickey encryption, it offers the RSA algorithm unlimited key bitsizes. It includes a test vector sample application with the test vectors required to demonstrate correct implementation of the encryption algorithms offered. The library uses the modern SHA2 and HAVAL hashing algorithms so that passphrases can be converted to exactly the amount of bits required for an encryption key and with better mathematical properties than older hashing algorithms such as MD5. Like all Xceed components, this library is designed to be flexible yet extremely easy to use. In fact, it only takes one line of code to encrypt or decrypt memory or files. A single line of code can even be used to chain together multiple Xceed components like the Xceed Streaming Compression Library and the Xceed Binary Encoding Library, so you can compress, encrypt and encode data into text just as easily. The fully selfcontained ActiveX control at the core of the library is all you need to include with your projects. It has no external dependencies such as MFC DLLs, runtime libraries or other resources. That translates to minimal hassle at distribution time. The library also supports all the available ActiveX functionality designed to make your programming job easier, such as categorized properties, builtin constants and enumerations, contextsensitive F1help, optional para
Dll Ocx Activex Component. Delphi Visual Basic Programming Easily Strong Applications.  Xceed Encryption Library
