f9a34f4de5
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.
112 lines
1.4 KiB
Plaintext
112 lines
1.4 KiB
Plaintext
# 1 "skeme-rekey.cpp"
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# 1 "<command-line>"
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# 1 "skeme-rekey.cpp"
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# 19 "skeme-rekey.cpp"
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# 1 "common.h" 1
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hashfunction prf, KDF;
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hashfunction g, h;
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# 97 "common.h"
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protocol @oracle (DH, SWAP) {
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role DH {
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var i, r: Nonce;
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recv_!DH1( DH, DH, h(g(r),i) );
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send_!DH2( DH, DH, h(g(i),r) );
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}
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role SWAP {
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var i, r, Ni, Nr: Nonce;
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# 147 "common.h"
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var I, R: Agent;
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recv_!SWAP1( SWAP, SWAP, KDF(k(I,R),prf(k(I,R), Ni, Nr, R, I)) );
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send_!SWAP2( SWAP, SWAP, KDF(k(R,I),prf(k(R,I), Ni, Nr, R, I)) );
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}
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}
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# 20 "skeme-rekey.cpp" 2
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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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recv_!O1( O, O, prf(k(R,I), Ni, Nr, R, I) );
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send_!O2( O, O, prf(k(I,R), Ni, Nr, R, I) );
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recv_!O3( O, O, prf(k(I,R), Nr, Ni, I, R) );
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send_!O4( O, O, prf(k(R,I), Nr, Ni, I, R) );
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}
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}
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protocol skeme-rekey(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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send_1( I, R, Ni );
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recv_!2( R, I, Nr, prf(k(I,R), Ni, Nr, R, I) );
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send_!3( I, R, prf(k(I,R), Nr, Ni, I, R) );
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claim( I, SKR, KDF(k(I,R),prf(k(I,R), Ni, Nr, R, I)) );
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claim( I, Alive );
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claim( I, Weakagree );
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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, Ni );
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send_!2( R, I, Nr, prf(k(I,R), Ni, Nr, R, I) );
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recv_!3( I, R, prf(k(I,R), Nr, Ni, I, R) );
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claim( R, SKR, KDF(k(R,I),prf(k(R,I), Ni, Nr, R, I)) );
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claim( R, Alive );
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claim( R, Weakagree );
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}
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}
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