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Re: Diffie-Hellman Key Generation
> Finally, I'm basing this on comments in 'Applied Cryptography' that D-H
> keys should be at least 512 bits and preferably 1024. How does the
> difficulty of breaking a D-H exchange with a 512 bit key compare to
> breaking a 512 bit RSA key ?
Calculating discrete logarithms is a bit more difficult than factoring.
So a 512-bit DH modulus will give you somewhat more security than a 512-bit
RSA key. I'm not sure how much, probably not a lot.