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Data Encryption Standard

Posted on 1998-11-14
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Last Modified: 2010-03-30
I would like to understand how the des(data encryption standard) (encryption and decryption) algorithm run and then to write a program using java . Can someone help me with this ??
SDK: 1.1
Development Platform:  Win95

    Thank you.
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Question by:zakirin
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by:zakirin
ID: 1227424
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sebastianv earned 120 total points
ID: 1227425
explaining how des works would get long and i am not able to.
buy a book about cryptography, if you really need to know about it.
A basic description you can find at http://whatis.com/des.htm
DES is specified in ANSI X3.92 and X3.106 standards.
to understand the DES you need some mathematical background( number theory). though i think implementing the algorithm is not that difficult. you need a implementation?
http://www.acme.com/java/software/
classes + source for encryption/decryption . works with java 1.0.2

hope that helps
 
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