Does the Elliptic curve diffie hellman calculation look any different from the standard one defined here: /* * The basic Diffie-Hellman Key Agreement Equation * * The client initiates * A = g^a mod p * * Sends (g p A) to the server ...
In the below snippet, please explain starting with the first "for" loop what is happening and why. Why is 0 added, why is 1 added in the second loop. What is going on in the "if" statement under bigi. Finally explain the modPow method. Thank you in advance for meaningful replies. public static boolean isPrimitive(BigInteger m, BigInteg...
I'm writing an implementation of a diffie-hellman key exchange in ruby for a project for one of my university classes. I need to generate large (secure) prime numbers of at least 500 bits length. Any ideas? Should I use the OpenSSL library? If so, what functions would you recommend? ...
I implemented Diffie–Hellman key exchange in Java with some large groups from RFC 3526. My output is a fairly large array of bytes. Is it safe to use the first 448 bits (56 bytes) of the output for a blowfish key? Should I transform the bytes in any way, or pick any specific bytes for the key? ...
Hi Everybody, I'm trying to understand more about how SSH works. I'm using Wireshark to grab the packets going between my machines (OpenSSH running on both ends). I'm stuck at the Diffie-Hellman Group Exchange Reply packet. There seems to be a length (4 Bytes) and value (1 Byte) not accounted for or not described by RFC 4419, just after...