Sometimes I wonder; don't people /read/ API docs? I guess not..
I'm currently in the process to build a webapplication for online
payment and naturally security and encryption will become a major deal
for the whole project. Many examples show you how you need to use the

How to generate "AES" SecretKey from raw Key bytes (e.g.
0xabcdef......)
using JDK 1.5 with "SunJCE".

I am current trying to create some code that adds custom extensions to
an X509 certificate request using the IAIK.ASN1 classes. The extension
I am currently attempting to add is a X.400 address and having looked
though the available documentation I see an objects named ORAddress

I would like to be sure that my app will be run only on specific
workstation, so I am thinking now of checking it by comparing
system-specific value. Is there something that in JVM? If not, do you
know how to get it from the microsoft windows system (I know I will

I have a question about using a signed applet. I have a specific
solution in mind I'll ask about but any other ideas for other
approaches would be welcome of course.
I have an applet which provides some information for putting on a web

I have some certificates from SAML metadata XML files and I will need
to use SSL to communicate with the relying party, in order to set up
SSL connection, I would create truststore. However, the standard
truststore will require a keystore backed by a file, and so I will have

I am facing a problem which anyone who has worked on any UDP
application might have faced.
UDP by itself is unreliable. If packets are lost, no acknowledgements
are sent.

I want to create 128 bits AES key from (user's password + unique salt
to that user) , key will be used to encrypt his private key in my
database. plz suggest ways for it using JDK 1.5 and SUN JCE provider
only.

About a month ago or so my company purchased a .pfx certificate from
Thawte.  We ended up not using it, because we found another, faster
solution.  I tried to import the pfx into tomcat, and it says that it
isn't X.509 compliant.  I imported the certificate onto my windows XP

I am using JCE 1.2.2 for one of my applications and got the following
error today:
Exception in thread "main" java.lang.ExceptionInInitializerError:
java.lang.SecurityException: Cannot set up certs for