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We study the verification of secrecy and authenticity properties for cryptogra- phic protocols which rely on symmetric shared keys. The verification can be reduced to check whether a certain parallel program which models the protocol and the specification can reach an erroneous state while interacting with the environment. Assuming finite principals, we present a simple decision procedure for the reachability problem which is based on a symbolic' reduction system.
[INFO.INFO-OH] Computer Science [cs]/Other [cs.OH], CRYPTOGRAPHIC PROTOCOLS, VERIFICATION, SYMBOLIC COMPUTATION
[INFO.INFO-OH] Computer Science [cs]/Other [cs.OH], CRYPTOGRAPHIC PROTOCOLS, VERIFICATION, SYMBOLIC COMPUTATION
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