XP_CRYPT for MS SQL Server 2000 Description:

XP_CRYPT for MS SQL Server 2000, MSDE and 7.0.
Easy-to-use, affordable, and effective security solution for column encryption within the MSSQL Server, MSDE and Oracle . It allows database administrators and developers to encrypt data without having to invent and develop an entire key management system themselves.
XP_CRYPT uses a server side encryption to allow you to encrypt and decrypt data without having to change your applications. XP_CRYPT is compliant with VISA VISA CISP, HIPAA, GLBA requirements.