Main Idea & Theme

What is the primary reason generals have used ciphers in war, according to 'Why the Cipher?'

(a)  

True or False: According to 'Cracking the Enigma,' the Enigma machine was originally invented for military use during World War I.

Who developed the 'Bombe' machine to help crack Enigma codes, as described in 'Cracking the Enigma'?

Explain the main idea of 'Why the Cipher?' in your own words.

What supporting detail from 'Cracking the Enigma' explains why German operators unintentionally aided codebreakers?

According to 'Why the Cipher?,' why is it important to encipher not just the message body but also the date, address, and signature?

(a)  

Identify one of Kerckhoffs' six requirements for a military cipher mentioned in 'Why the Cipher?' and explain how it supports the passage's main idea about cipher limitations.

How do the main ideas of the two passages connect in their views on the security of military ciphers? Use evidence from both to support your response.

Compare a supporting detail from 'Why the Cipher?' about cipher weaknesses to how the Enigma machine's development and cracking demonstrate those weaknesses.

Analyze how the evidence of Enigma's impact on World War II in 'Cracking the Enigma' reinforces the theme of cipher imperfection from 'Why the Cipher?' What broader lesson about supporting evidence for this theme emerges from both?