This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
I am Using DES Encryption and Decryption.
I want to know whether the data is modified or not..Currently when i changed the encrypted data . it is giving different data .but how could i find that the data is modified.. is there any option...
I'm not sure I understand what you're trying to do. Different cleartexts lead to different cryptotexts. If you want to compare the current cryptotext, then you need to store previous cryptotexts (or at least the most recent one); you may also want to store when it was last changed.