43 pages • 1 hour read
Simon SinghThe Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography
Nonfiction | Book | Adult | Published in 1999A modern alternative to SparkNotes and CliffsNotes, SuperSummary offers high-quality Study Guides with detailed chapter summaries and analysis of major themes, characters, and more.
Essay Topics
What is the oldest form of keeping messages secret, and how did it evolve into a subsequent art?
Compare and contrast the two forms of encryption: transposition and substitution. Imagine you have a secret message you wish to convey. In which situations would you use transposition or substitution? Why?
The author opens his analysis by retelling the story of the treason trial of Mary, Queen of Scots. What role has encryption played in politics over the centuries? How does the political use of encryption now differ from—or bear resemblance to—its political uses in the past?
