Lesson plan

Cryptol

Cryptol is a domain-specific programming language for cryptography developed by the Portland, Oregon based software development firm, Galois, Inc. It is free and open-source software released under a BSD 3-clause software license. The language was originally developed for use by the United States National Security Agency. The language is also used by private firms that provide information technology systems, such as the American company Rockwell Collins provides to aerospace and defense contractors in the United States. The programming language is used for all aspects of developing and using cryptography, such as the design and implementation of new ciphers and the verification of existing cryptographic algorithms. Cryptol is designed to allow a cryptographer to watch how stream processing functions in the program manipulate ciphers or encryption algorithms.

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Article summary

Cryptol is a domain-specific programming language for cryptography developed by the Portland, Oregon based software development firm, Galois, Inc. It is free and open-source software released under a BSD 3-clause software license. The language was originally developed for use by the United States National Security Agency. The language is also used by private firms that provide information technology systems, such as the American company Rockwell Collins provides to aerospace and defense contractors in the United States. The programming language is used for all aspects of developing and using cryptography, such as the design and implementation of new ciphers and the verification of existing cryptographic algorithms. Cryptol is designed to allow a cryptographer to watch how stream processing functions in the program manipulate ciphers or encryption algorithms.

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

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Key claims and bibliography are generated from the same tracked claims and sources as the article page.