IMplementing the DES algo

**jkuzhuppallil** · 09-30-2008, 08:15 PM

HEy Guys,

I have been given a deadline of 2 days to write in a java program for implementing the DES Algorithm. I was wondering is someone could help me with a source code that i could modify. If you guys have done it before. Well i have seen the alogorithm and i dont think i would be bale to do it in 2 days. THough i have started with the classes i expect in the program. Need a big favor from u guys.

Thanks
Jk

**Fubarable** · 09-30-2008, 08:19 PM

Wish you much luck!

**fishtoprecords** · 10-01-2008, 12:02 AM

Originally Posted by jkuzhuppallil

I have been given a deadline of 2 days to write in a java program for implementing the DES Algorithm.

Do you mean implement the algorithm from scratch?
or
write code that uses a proven implementation of the algorithm?

I'm a professional crypto guy, and I am not sure I could do the first in two days.

The javax.crypto classes implement it for you, and AES (which you really should use for new code).

There are tutorials and code examples.

**jkuzhuppallil** · 10-01-2008, 08:24 PM

Well, seems like it from scratch, no indication has been given to using javax.crypto classes. so right now i am just implementing generation of the key part and friday is the deadline, I still dont know if i can do it all till then. I will try to look inti the class as u said ...see if i can implement from there. any other suggestion?