scyther/gui/Protocols/IKE/jfkr-core.spdl
Cas Cremers f9a34f4de5 BUGFIX: Updating hashfunction usage in protocol files to new conventions.
After the new function implementation, the 'Function' type is no longer one-way by default.
However, many protocol description files relied on this implicit assumption.
The solution is to use 'hashfunction' declarations instead to model one-wayness.

Original bug report by Binh Thanh Nguyen.
2014-01-08 15:13:16 +00:00

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# 1 "jfkr-core.cpp"
# 1 "<command-line>"
# 1 "jfkr-core.cpp"
# 15 "jfkr-core.cpp"
# 1 "common.h" 1
hashfunction prf, KDF;
hashfunction g, h;
# 60 "common.h"
hashfunction 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;
# 150 "common.h"
recv_!SWAP1( SWAP, SWAP, KDF(h(g(r),i), Ni, Nr) );
send_!SWAP2( SWAP, SWAP, KDF(h(g(i),r), Ni, Nr) );
}
}
# 16 "jfkr-core.cpp" 2
protocol @executability(O) {
role O {
var i, r, Ni, Nr: Nonce;
var I, R: Agent;
recv_!O1( O, O, H(KDF(h(g(i),r), Ni, Nr), Nr, Ni, R) );
send_!O2( O, O, H(KDF(h(g(r),i), Ni, Nr), Nr, Ni, R) );
recv_!O3( O, O, H(KDF(h(g(r),i), Ni, Nr), Nr, Ni, I) );
send_!O4( O, O, H(KDF(h(g(i),r), Ni, Nr), Nr, Ni, I) );
}
}
protocol jfkr-core(I, R)
{
role I {
fresh i, Ni: Nonce;
var Nr, Gr: Ticket;
send_1( I, R, Ni, g(i) );
recv_!2( R, I, Nr, Ni, R, Gr, {Nr, Ni, Gr, g(i)}sk(R), H(KDF(h(Gr,i), Ni, Nr), Nr, Ni, R) );
send_!3( I, R, Nr, Ni, I, {Nr, Ni, Gr, g(i)}sk(I), H(KDF(h(Gr,i), Ni, Nr), Nr, Ni, I) );
claim( I, SKR, KDF(h(Gr,i), Ni, Nr) );
claim( I, Alive );
claim( I, Weakagree );
}
role R {
fresh r, Nr: Nonce;
var Ni, Gi: Ticket;
recv_1( I, R, Ni, Gi );
send_!2( R, I, Nr, Ni, R, g(r), {Nr, Ni, g(r), Gi}sk(R), H(KDF(h(Gi,r), Ni, Nr), Nr, Ni, R) );
recv_!3( I, R, Nr, Ni, I, {Nr, Ni, g(r), Gi}sk(I), H(KDF(h(Gi,r), Ni, Nr), Nr, Ni, I) );
claim( R, SKR, KDF(h(Gi,r), Ni, Nr) );
claim( R, Alive );
claim( R, Weakagree );
}
}