Please suggest the best way in which we encrypt in JavaScript and decrypt in java based on shared key.
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Please suggest the best way in which we encrypt in JavaScript and decrypt in java based on shared key.
There are a few shared-key encryption libraries out there. Just make sure to use one that you can run in Java. One I’ve found useful is Daniel Rench’s Blowfish library.
I would be generally be very reluctant to do anything serious with any in-browser implementation, mainly because I seriously doubt the peer review of JS encryption is thorough enough to adequately trust. I completely dismiss the criticisms of JS-based encryption as being inherently weaker than other client-based tool, though. Just because you can debug a JS script in the browser and is the code exists in plaintext doesn’t mean it’s any different inherently than any other client-based encryption system. “Easier” does not mean “less secure”. Any encryption software that runs outside of a secure system is equally at risk of tampering and manipulation no matter what. And, if implemented correctly, a JS cypher tool shares the same weaknesses of all similar tools and no more.