Diffie-Hellman is a method for establishing a shared secret that can be used as a cryptographic key.

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Is a Diffie Hellman Ephemeral key good material for being used as a symmetric cipher algorithm key?

I am designing a secure protocol (for academic/learning purposes) and I am at the point where I need to (re)design the key exchange step. In my previous implementation, I used to rely on RSA to ...
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Is the Station-to-Station protocol secure?

After I've read a lot about key exchange many sources state that the Station-to-Station is secure, since it also verifies the entity on the other side. Well how is that true, if an active Man in the ...
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How to generate DSA keypair for browserID

As a bit of a learning exercise, I'm trying to understand and implement a client for the Firefox Accounts Browser sync API. I'm up to the point where I'm trying to ask the server to give me a ...
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Any Suggestion Exchanging shared key between process via port in untrusted machine (infected my malware)?

I am trying to get shared key between Firefox extension and a java program running in same machine. I am communicating both application via socket. My assumption is that malware is running in ...