Haig C Didizian wrote: > What takes everything so long to be set up then if I use a 512-bit key? > Is it the prime number?
The prime and generator are fixed for a set of participants. Calculating the public key value and generating the DH shared secret through key agreement with another party require more computation with longer key lengths. X = g**x mod p takes longer to compute as x gets bigger... Using a fast modular exponentiation method yields times that are roughly O(lg(n)), which means that exponents that are twice as long take twice as much time. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
