# 1 "ikev2-child.cpp"
# 1 "<command-line>"
# 1 "ikev2-child.cpp"
# 15 "ikev2-child.cpp"
# 1 "common.h" 1




 hashfunction prf, KDF;






hashfunction g, h;
# 97 "common.h"
protocol @oracle (DH, SWAP) {







 role DH {
  var i, r: Nonce;

  recv_!DH1( DH, DH, h(g(r),i) );
  send_!DH2( DH, DH, h(g(i),r) );
 }




 role SWAP {
  var i, r, Ni, Nr: Nonce;
# 135 "common.h"
  var I, R: Agent;
# 150 "common.h"
  recv_!SWAP1( SWAP, SWAP, KDF(k(I,R),h(g(r),i),Ni,Nr) );
  send_!SWAP2( SWAP, SWAP, KDF(k(R,I),h(g(i),r),Ni,Nr) );

 }


}
# 16 "ikev2-child.cpp" 2



usertype SecurityAssociation;
const SA1 ,SA2, SA3: SecurityAssociation;






protocol @executability(O) {


 role O {
  var i, r, Ni, Nr: Nonce;
  var I, R: Agent;


  recv_!O1( O, O, {SA3, Ni, g(i)}k(I,R) );
  send_!O2( O, O, {SA3, Ni, g(i)}k(R,I) );


  recv_!O3( O, O, {SA3, Nr, g(r)}k(R,I) );
  send_!O4( O, O, {SA3, Nr, g(r)}k(I,R) );

 }


}



protocol ikev2-child(I, R)
{

 role I {
  fresh i, Ni: Nonce;
  var Nr: Nonce;
  var Gr: Ticket;


  claim( I, Running, R,Ni,g(i) );
  send_!1( I, R, {SA3, Ni, g(i)}k(I,R) );
  recv_!2( R, I, {SA3, Nr, Gr}k(I,R) );


  claim( I, SKR, KDF(k(I,R),h(Gr,i),Ni,Nr) );

  claim( I, Alive );
  claim( I, Weakagree );
  claim( I, Commit, R,Ni,g(i),Nr,Gr );

 }

 role R {
  fresh r, Nr: Nonce;
  var Ni: Nonce;
  var Gi: Ticket;

  recv_!1( I, R, {SA3, Ni, Gi}k(R,I) );
  claim( R, Running, I,Ni,Gi,Nr,g(r) );
  send_!2( R, I, {SA3, Nr, g(r)}k(R,I) );


  claim( R, SKR, KDF(k(R,I),h(Gi,r),Ni,Nr) );

  claim( R, Alive );
  claim( R, Weakagree );
  claim( R, Commit, I,Ni,Gi );
 }
}