QuickCrypt Library (10 License Pack)   
by SlavaSoft Inc.   

QuickCrypt Library implements 7 symmetric encryption algorithms: DES, TripleDES (DES-EDE2, DES-EDE3), DESX, Rijndael (AES), Blowfish and GOST. It supports 5 modes of operation: ECB, CBC, CFB, OFB and CTR modes. The library allows Windows developers to perform in their applications encryption/decryption of memory blocks, strings, blobs, streaming data and files.
QuickCrypt Library was designed to be fast, flexible and extremely easy to use.