I've had similar problems with using the JCE kit in tomcat, My crypto classes run ok standalone, but fail with various errors when running in tomcat. I have the below error only on one developers machine every time, but not on anyone elses system. -----Original Message----- From: Leon Palermo [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 20, 2001 9:05 AM To: [EMAIL PROTECTED]; Brett M. Bergquist Subject: Encryption with javax.crypto.* Hello All, I have some code which uses the javax.crypto.* package. When I run the code in a test outside of tomcat everything works fine. When I try to run the code through Tomcat on the same machine, I get the following error: java.lang.SecurityException: Cannot set up certs for trusted CAs at javax.crypto.b<clinit>([Dasho-Pro-V1.2-120198]) at javax.crypto.SecretKeyFactory.getInstance([Dasho-Pro-V1.2-120198]) ... Has anyone ever used these classes with tomcat? Does anyone have an idea what might be happening here? Has anyone used a different way to encrypt in code run in tomcat? Thanks in advance! Leon Palermo