79 lines
1.6 KiB
C++
79 lines
1.6 KiB
C++
/**********************************************************************
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* @protocol Internet Key Exchange Protocol (IKEv2)
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* @subprotocol IKE Create Child SA
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* @reference RFC 4306
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* @variant No perfect forward secrecy support
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**********************************************************************/
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/**
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* MACRO DEFINITIONS
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* Needs preprocessing by cpp before fed to scyther
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*/
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#define __IKEV2_CHILD_NOPFS__
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#ifndef __ORACLE__
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#include "common.h"
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#endif
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const SA3: Nonce;
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/**
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* This role serves as an "oracle" to ensure the executability of the
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* protocol by taking care of the problems that arise from our way of
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* modelling k(I,R) = k(R,I).
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*/
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protocol @executability(O) {
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role O {
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var Ni, Nr: Nonce;
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var I, R: Agent;
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// msg 1
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recv_!O1( O, O, {SA3, Ni}k(I,R) );
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send_!O2( O, O, {SA3, Ni}k(R,I) );
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// msg 2
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recv_!O3( O, O, {SA3, Nr}k(R,I) );
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send_!O4( O, O, {SA3, Nr}k(I,R) );
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}
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}
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protocol ikev2-child-nopfs(I, R)
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{
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role I {
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fresh Ni: Nonce;
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var Nr: Nonce;
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/* IKE_SA_INIT */
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claim( I, Running, R,Ni );
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send_!1( I, R, {SA3, Ni}k(I,R) );
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recv_!2( R, I, {SA3, Nr}k(I,R) );
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/* SECURITY CLAIMS */
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claim( I, SKR, SKi );
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claim( I, Alive );
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claim( I, Weakagree );
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claim( I, Commit, R,Ni,Nr );
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}
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role R {
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fresh Nr: Nonce;
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var Ni: Nonce;
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recv_!1( I, R, {SA3, Ni}k(R,I) );
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claim( R, Running, I,Ni,Nr );
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send_!2( R, I, {SA3, Nr}k(R,I) );
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/* SECURITY CLAIMS */
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claim( R, SKR, SKr );
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claim( R, Alive );
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claim( R, Weakagree );
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claim( R, Commit, I,Ni );
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}
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}
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