cpsa
Version 3.6.10 revision 0 uploaded by JohnRamsdell.
Package meta
- Synopsis
- Symbolic cryptographic protocol analyzer
- Description
The Cryptographic Protocol Shapes Analyzer (CPSA) attempts to enumerate all essentially different executions possible for a cryptographic protocol. We call them the shapes of the protocol. Many naturally occurring protocols have only finitely many, indeed very few shapes. Authentication and secrecy properties are easy to determine from them, as are attacks and anomalies, and an auxiliary tool reads off strongest authentication and secrecy goals from the shapes.
For each input problem, the CPSA program is given some initial behavior, and it discovers what shapes are compatible with it. Normally, the initial behavior is from the point of view of one participant. The analysis reveals what the other participants must have done, given the participant's view. The search is complete, i.e. we proved every shape can be found in a finite number of steps, relative to a procedural semantics of protocol roles. This version of CPSA has the ability to analyze Diffie-Hellman protocols.
The package contains a set of programs used to perform the analysis and display it in a browser. Program documentation is in the doc directory in the source distribution, and installed in the package's data directory. You can locate the package's data directory by typing "cpsa --help" to a command prompt. New users should start learning to use the tool from the manual, found at "cpsamanual.pdf" in the data directory. Examples referenced in the manual can be found in the data directory as well. It is suggested that users make an examples directory and copy "*.scm *.xhtml" to their local examples directory, both so that they may be modified and for ease of access.
The theory and algorithm used by CPSA was developed with the help of Joshua D. Guttman, John D. Ramsdell, Jon C. Herzog, Shaddin F. Doghmi, F. Javier Thayer, Paul D. Rowe, and Moses D. Liskov. John D. Ramsdell and Moses D. Liskov implemented the algorithm in Haskell. CPSA was designed and implemented at The MITRE Corporation.
- Author
- n/a
- Bug reports
- n/a
- Category
- Cryptography
- Copyright
- n/a
- Homepage
- n/a
- Maintainer
- mliskov@mitre.org
- Package URL
- n/a
- Stability
- n/a