as part of my current task, I need to follow these instructions:
"encode a file using AES, with a 128 bit key, in CBC mode. 128 bit
initialization vector will prefix the ciphertext. padding according to
RFC 2630. decode the result into a new file in a seperate process."

The following is the error response from the console.
I need to use an applet using JAI libraries but there are security
problems.
Someone can help me?!?!? this applet work properly in netbeans!!!

I have a tomcat webapp that is comprised of a lot of one-shot,
context-free servlets. The only context they need is the security (ie
jsessionid) which is static for the session, of course. I use the
DatasourceRealm at the moment.

Hi, i have a doubt, i'm not able to resolve about crypto key generation:
when i genererate a 3des key in this way:
SecretKey key1 = new SecretKeySpec("key24Byte".getBytes("UTF-8"), "DESede");
and this other:

I have two servlets in the same tomcat webapp (A and B) both normally
accessed from the web. Sometimes A needs to access B and I use http to
do that. Actually 'B' is about a dozen other servlets, still all in
the same webapp.

I'm currently writing a server which requires that an already existing
Socket be changed into a Socket under TLS layer. I.e., I have
sucessfully established communication with a client, then after a
certain command exchange, the client starts TLS negotiation, and after

I've written a simple tomcat filter that checks a space separated list of IP
addresses (taken as an argument).  Now I need to make it work better.  I
need to modify it to accept a range of IP addresses as well as a single IP
address.  Any suggestions on the best way to work this ...

does anybody know if there is some unification work of the packages
javax.net.ssl and java.security.cert in progress?
I am currently having a hard time to make the two cooperate, even though
both deal with certificates. E.g., KeyStore and CertStore work in a

I use the Cryptix provider. I want to create an object in order to
decrypt/encrypt with RSA. Crptix32 provides RSA, but I can't use the
getInstance-method the create an RSA-Cipher.
The code line: Cipher rsaCipher=Cipher.getInstance("RSA",p);// p is the

Solaris 8
Java 1.4.2
Tomcat  4.0.6 (I know, I can't do anything about it yet)
I need to log someone in automatically to a local service (content

I know this kind of defeats the purpose of the java.policy file on the
client machine, but is there anyway to dynamically download the policy from
a webserver? Our customers are beginning to complain about the extra step
required to copy this policy file to every client ... is there ...

I downloaded Tomcat and tried to run it with startup.sh on port 8080
as an unprivileged user but it didn't work. When I do a port scan on
my machine, the port 8080 is not open but what is interesting is that
when I open the locatin http://localhost:8080/ my browser displays the

There is a device called a thumb drive that holds 8 to 128 MB.
It looks a bit like a keychain.  A customer wants to use this as a way
of protecting his files.  He wants it that if anyone stealing a
laptop, so long as the thumb drive is not inserted, will find the

I have a jar file for my applet. My applet uses a lot of external
library jar files. I signed my own jar. But it still gives me security
exception if I want to load local file into applet. If I sign the
external lib jar files as well, the applet works fine. But I do not

I would appreciate if you guys can point me to some link/tutorials
where I can get information about how exactly JAAS works for JBOSS
with embedded Tomcat as webserver.
Here we want to use Web container security, custom forms are used to