Lesson plan

Skipjack (cipher)

In cryptography, Skipjack is a block cipher — an algorithm for encryption — developed by the United States National Security Agency (NSA). Initially a classified encryption algorithm, it was developed for use in the controversial Clipper chip. In 1998, the algorithm was declassified.

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Article summary

In cryptography, Skipjack is a block cipher — an algorithm for encryption — developed by the United States National Security Agency (NSA). Initially a classified encryption algorithm, it was developed for use in the controversial Clipper chip. In 1998, the algorithm was declassified.

Key claims

  1. publication date: 2002 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the publication date is "2002". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1374499384

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