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C code for Diffie-Hellman key exhange protocols with Digital Singnature Algorthim (DSA)
Hi
I am looking for C code applying Diffie-Hellman key exhange protocols with Digital Singnature Algorthim (DSA) bwetwen two nodes??
Could you help in this.
Regards
I am looking for C code applying Diffie-Hellman key exhange protocols with Digital Singnature Algorthim (DSA) bwetwen two nodes??
Could you help in this.
Regards
Last Comment
Dave Howe
This is pretty common - openssl will have such code in it for example. Do you want to be more specific about what you want to achieve?
ASKER
Thanks for your reply
I want to simulate this protocol Diffie-Hellman key exhange protocol with Digital Singnature Algorthim (DSA) to generate one shared key between two nodes. the shared key will be used in later phase which can then be used to encrypt subsequent communications, but first I need to generate the shared key in C code.
I want to simulate this protocol Diffie-Hellman key exhange protocol with Digital Singnature Algorthim (DSA) to generate one shared key between two nodes. the shared key will be used in later phase which can then be used to encrypt subsequent communications, but first I need to generate the shared key in C code.
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ASKER
Thanks for the link but it seems that only DH protocol is implemented without Digital Signature for authentication. ??
indeed, but to do that you would normally just digitally sign one or both of the exchange packets. there is elgamal c source here - http://www.koders.com/c/fid90838E6E27F33D1D8411FA994F2308A367A643A0.aspx
C
C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.
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