4 ms·

I also assume it is a good reason. I'm curious, what is that reason? From the article... > Unlike prime numbers in RSA keys, which are always > suppo

• vabmit 10y ago
  Basically, because people thought it was safe. It didn't seem significant to use the same prime since the key exchange process involves both Alice and Bob generating a secret. Solving the discrete logarithm of g^a mod p was still thought to be intractable given a large enough (1024bits) p. As to the technical reason why the DH parameters were reused - speed and efficiency. A DH key exchange would take longer if you had to generate those parameters each time.
  • imagist 10y ago
    I agree with your comment, but I'd like to add that if you speedily/efficiently do the wrong thing, it's no good. The first step of optimization is correctness.