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- Add names to WMF messages so that the system property described in SPORE

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(agents will not accepted messages they have created them selves) can be
  modelled.
This commit is contained in:
gijs 2005-07-04 13:29:49 +00:00
parent 12b5d96ddb
commit 92356a2d43
1 changed files with 10 additions and 6 deletions
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16
spdl/SPORE/wmf.spdl
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@ -3,6 +3,10 @@
# Modelled after the description in the SPORE library # Modelled after the description in the SPORE library
# http://www.lsv.ens-cachan.fr/spore/wideMouthedFrog.html # http://www.lsv.ens-cachan.fr/spore/wideMouthedFrog.html
# #
# Note
# The name of the party that has generated a message was added in order
# to model the property described in SPORE that an agent can identify
# its own messages and will reject them.
usertype SessionKey; usertype SessionKey;
usertype TimeStamp; usertype TimeStamp;
@ -22,8 +26,8 @@ protocol wmfSessionKeyCompromise(C)
var I,R,S: Agent; var I,R,S: Agent;
read_C1(C,C, I,R,S); read_C1(C,C, I,R,S);
send_C2(C,C, I, {Ti,R,Kir}k(I,S), send_C2(C,C, I, {I,Ti,R,Kir}k(I,S),
{Ts,I,Kir}k(R,S), {S,Ts,I,Kir}k(R,S),
Kir Kir
); );
claim_C3(C,Empty, (Compromised,Kir)); claim_C3(C,Empty, (Compromised,Kir));
@ -38,7 +42,7 @@ protocol wmf(I,R,S)
const Ti: TimeStamp; const Ti: TimeStamp;
var Kr: SessionKey; var Kr: SessionKey;
send_1(I,S, I, {Ti, R, Kir}k(I,S)); send_1(I,S, I, {I, Ti, R, Kir}k(I,S));
claim_I1(I,Secret,Kir); claim_I1(I,Secret,Kir);
claim_I2(I,Empty,(Fresh,Kir)); claim_I2(I,Empty,(Fresh,Kir));
@ -49,7 +53,7 @@ protocol wmf(I,R,S)
var Ts: TimeStamp; var Ts: TimeStamp;
var Kir: SessionKey; var Kir: SessionKey;
read_2(S,R, {Ts, I, Kir}k(R,S) ); read_2(S,R, {S, Ts, I, Kir}k(R,S) );
claim_R1(R,Secret,Kir); claim_R1(R,Secret,Kir);
claim_R2(R,Nisynch); claim_R2(R,Nisynch);
@ -62,8 +66,8 @@ protocol wmf(I,R,S)
const Ts: TimeStamp; const Ts: TimeStamp;
var Ti: TimeStamp; var Ti: TimeStamp;
read_1(I,S, I,{Ti, R, Kir}k(I,S) ); read_1(I,S, I,{I, Ti, R, Kir}k(I,S) );
send_2(S,R, {Ts, I, Kir}k(R,S)); send_2(S,R, {S, Ts, I, Kir}k(R,S));
} }
} }