> java.security.NoSuchAlgorithmException: Transformation RSA/ECB/PKCS1Padding > not found in provider IAIK This error message is not generated by the IAIK code. That means you are using someone elses JCE implementation that does not seem to correctly implement the specification. Check your CLASSPATH to see where that code comes from. Regards, Andreas Sterbenz mailto:Andreas.Sterbenz@iaik.at -----Ursprüngliche Nachricht----- Von: "Ricky Wong" <RickyWong@dahsing.com> An: "'Dieter Bratko'" <Dieter.Bratko@iaik.at> Cc: <firstname.lastname@example.org> Gesendet: Donnerstag, 21. September 2000 08:31 Betreff: RE: [iaik-jce] SetupSMimeKeyStore problem I found that the problem happens when the system try to make the following call : Cipher rsa = Cipher.getInstance("RSA/ECB/PKCS1Padding", "IAIK"); In fact, the following error will occur even when I run program with the above line : java.security.NoSuchAlgorithmException: Transformation RSA/ECB/PKCS1Padding not found in provider IAIK It seems that the RSA implementation is not included, but I'm sure that I've included either the rsa_rc4.jar or iaik_jce.jar in my CLASSPATH.