Chilkat Crypt is an advanced encryption ActiveX component that offers both RSA public-key encryption with digital signatures as well as symmetric encryption algorithms including AES (Rijndael), Blowfish, and Twofish. It provides the ability to easily create digital signatures for files or memory data, or verify digital signatures against incoming data or files. It allows for the use of any Cryptographic Service Provider, including Smart Card implementations from 3rd-party vendors. It also provid