PGP in Java

23. October 2008 03:41 by Mrojas in General  //  Tags: ,   //   Comments (0)

Recenlty following a post in an AS400 Java Group, someone asked about a method for signing and verifying a file with PGP.
I though, "Damn, that seems like a very common thing, it shouldn't be that difficult", and started google'ing for it.
I found as the poster said that the Bouncy Castle API can be used but it was not easy.

Well so I learned a lot about PGP and the Bouncy Castle and thanks god, Tamas Perlaky posted a great sample that signs a file, so I didn't have to spend a lot of time trying to figure it out.

I'm copying Tamas Post because, I had problems accesing the site so here is the post just as Tamas published it:

"To build this you will need to obtain the following depenencies.  The Bouncy Castle versions may need to be different based on your JDK level.


Then you can try something like:
  java net.tamas.bcpg.DecryptAndVerifyFile -d test2_secret.asc -p secret -v test1_pub.asc -i test.txt.asc -o verify.txt
And expect to get a verify.txt that's the same as test.txt.  Maybe.
Here’s the download:"

And this is the original link:

Thanks a lot Tamas