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.
134 lines
2.8 KiB
Plaintext
134 lines
2.8 KiB
Plaintext
# 1 "ikev2-mac2.cpp"
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# 1 "<command-line>"
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# 1 "ikev2-mac2.cpp"
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# 15 "ikev2-mac2.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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# 43 "common.h"
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hashfunction MAC;
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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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# 132 "common.h"
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var SPIi, SPIr: Nonce;
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# 150 "common.h"
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recv_!SWAP1( SWAP, SWAP, KDF(Ni,Nr,h(g(r),i),SPIi,SPIr) );
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send_!SWAP2( SWAP, SWAP, KDF(Ni,Nr,h(g(i),r),SPIi,SPIr) );
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}
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}
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# 16 "ikev2-mac2.cpp" 2
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# 24 "ikev2-mac2.cpp"
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usertype Number, SecurityAssociation, TrafficSelector;
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const O: Number;
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const SA1 ,SA2, SA3: SecurityAssociation;
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const TSi, TSr: TrafficSelector;
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protocol @executability(E) {
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role E {
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var i, r, Ni, Nr, SPIi, SPIr: Nonce;
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var I, R: Agent;
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recv_!E1( E, E, {I, MAC(k(I,R), SPIi, O, SA1, g(i), Ni, Nr, prf(KDF(Ni,Nr,h(g(r),i),SPIi,SPIr), I)), SA2, TSi, TSr}KDF(Ni,Nr,h(g(r),i),SPIi,SPIr) );
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send_!E2( E, E, {I, MAC(k(R,I), SPIi, O, SA1, g(i), Ni, Nr, prf(KDF(Ni,Nr,h(g(i),r),SPIi,SPIr), I)), SA2, TSi, TSr}KDF(Ni,Nr,h(g(i),r),SPIi,SPIr) );
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recv_!E3( E, E, {R, MAC(k(R,I), SPIi, SPIr, SA1, g(r), Nr, Ni, prf(KDF(Ni,Nr,h(g(i),r),SPIi,SPIr), R)), SA2, TSi, TSr}KDF(Ni,Nr,h(g(i),r),SPIi,SPIr) );
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send_!E4( E, E, {R, MAC(k(I,R), SPIi, SPIr, SA1, g(r), Nr, Ni, prf(KDF(Ni,Nr,h(g(r),i),SPIi,SPIr), R)), SA2, TSi, TSr}KDF(Ni,Nr,h(g(r),i),SPIi,SPIr) );
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}
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}
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protocol ikev2-mac2(I, R)
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{
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role I {
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fresh i, Ni, SPIi: Nonce;
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var Nr, SPIr: Nonce;
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var Gr: Ticket;
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send_1( I, R, SPIi, O, SA1, g(i), Ni );
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recv_2( R, I, (SPIi,SPIr), SA1, Gr, Nr );
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claim( I, Running, R, Ni,g(i),Nr,Gr,TSi,TSr );
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send_!3( I, R, (SPIi,SPIr), {I, MAC(k(I,R), SPIi, O, SA1, g(i), Ni, Nr, prf(KDF(Ni,Nr,h(Gr,i),SPIi,SPIr), I)), SA2, TSi, TSr}KDF(Ni,Nr,h(Gr,i),SPIi,SPIr) );
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recv_!4( R, I, (SPIi,SPIr), {R, MAC(k(I,R), SPIi, SPIr, SA1, Gr, Nr, Ni, prf(KDF(Ni,Nr,h(Gr,i),SPIi,SPIr), R)), SA2, TSi, TSr}KDF(Ni,Nr,h(Gr,i),SPIi,SPIr) );
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claim( I, SKR, KDF(Ni,Nr,h(Gr,i),SPIi,SPIr) );
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claim( I, Alive );
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claim( I, Weakagree );
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claim( I, Commit, R, Ni,g(i),Nr,Gr,TSi,TSr );
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}
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role R {
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fresh r, Nr, SPIr: Nonce;
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var Ni, SPIi: Nonce;
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var Gi: Ticket;
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recv_1( I, R, SPIi, O, SA1, Gi, Ni );
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send_2( R, I, (SPIi,SPIr), SA1, g(r), Nr );
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recv_!3( I, R, (SPIi,SPIr), {I, MAC(k(R,I), SPIi, O, SA1, Gi, Ni, Nr, prf(KDF(Ni,Nr,h(Gi,r),SPIi,SPIr), I)), SA2, TSi, TSr}KDF(Ni,Nr,h(Gi,r),SPIi,SPIr) );
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claim( R, Running, I, Ni,Gi,Nr,g(r),TSi,TSr );
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send_!4( R, I, (SPIi,SPIr), {R, MAC(k(R,I), SPIi, SPIr, SA1, g(r), Nr, Ni, prf(KDF(Ni,Nr,h(Gi,r),SPIi,SPIr), R)), SA2, TSi, TSr}KDF(Ni,Nr,h(Gi,r),SPIi,SPIr) );
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claim( R, SKR, KDF(Ni,Nr,h(Gi,r),SPIi,SPIr) );
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claim( R, Alive );
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claim( R, Weakagree );
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claim( R, Commit, I, Ni,Gi,Nr,g(r),TSi,TSr );
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}
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}
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