Within this library you get strong encryption functions based on RSA, Triple DES, AES, SHA1 methods right inside the server. Implementing encryption/decryption on server side, makes you independant from front-end, provide speed and better flexibility of front-end implementation. This library is well known and listed in usenet MSSQL FAQs. Limited version can crypt by RSA method up to 14 chars with 256 bit key. You can download demo and examples from http://www.activecrypt.com/