60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
/**
|
|
* @protocol OAKLEY
|
|
* @reference RFC 2412,
|
|
* Boyd C. and Mathuria A., Protocols for Authentication and
|
|
* Key Agreement
|
|
* @description OAKLEY is related to STS and allows for shared key
|
|
* determination via authenticated Diffie-Hellman exchanges and
|
|
* provides perfect forward secrecy for the shared key.
|
|
* @variant Aggressive mode
|
|
**/
|
|
|
|
|
|
/** MACRO DEFINITIONS
|
|
* Needs preprocessing by cpp before fed to scyther
|
|
**/
|
|
#define __OAKLEY__
|
|
#ifndef __ORACLE__
|
|
#include "common.h"
|
|
#endif
|
|
|
|
|
|
usertype String;
|
|
const list, algo: String;
|
|
|
|
protocol oakley-a(I, R)
|
|
{
|
|
role I {
|
|
fresh i, Ni, Ci: Nonce;
|
|
var Nr, Cr: Nonce;
|
|
var Gr: Ticket;
|
|
|
|
send_1( I, R, Ci, g(i), list, I, R, Ni, {I, R, Ni, g(i), list}sk(I) );
|
|
recv_2( R, I, Cr, Ci, Gr, algo, R, I, Nr, Ni, {R, I, Nr, Ni, g(i), Gr, algo}sk(R) );
|
|
send_3( I, R, Ci, Cr, g(i), algo, I, R, Ni, Nr, {I, R, Ni, Nr, g(i), Gr, algo}sk(I) );
|
|
|
|
/* SECURITY CLAIMS */
|
|
claim( I, SKR, SKi );
|
|
|
|
claim( I, Alive );
|
|
claim( I, Weakagree );
|
|
|
|
}
|
|
|
|
role R {
|
|
fresh r, Nr, Cr: Nonce;
|
|
var Ni, Ci: Nonce;
|
|
var Gi: Ticket;
|
|
|
|
recv_1( I, R, Ci, Gi, list, I, R, Ni, {I, R, Ni, Gi, list}sk(I) );
|
|
send_2( R, I, Cr, Ci, g(r), algo, R, I, Nr, Ni, {R, I, Nr, Ni, Gi, g(r), algo}sk(R) );
|
|
recv_3( I, R, Ci, Cr, Gi, algo, I, R, Ni, Nr, {I, R, Ni, Nr, Gi, g(r), algo}sk(I) );
|
|
|
|
/* SECURITY CLAIMS */
|
|
claim( R, SKR, SKr );
|
|
|
|
claim( R, Alive );
|
|
claim( R, Weakagree );
|
|
|
|
}
|
|
} |