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Fixing Caesar Cipher descriptions #45

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Apr 21, 2014
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2 changes: 1 addition & 1 deletion README.md
Original file line number Diff line number Diff line change
Expand Up @@ -271,7 +271,7 @@ Graphics and Multimedia
Security
-------------

**Caesar cipher** - Implement a Caesar cipher, both encoding and decoding. The key is an integer from 1 to 25. This cipher rotates the letters of the alphabet (A to Z). The encoding replaces each letter with the 1st to 25th next letter in the alphabet (wrapping Z to A). So key 2 encrypts "HI" to "JK", but key 20 encrypts "HI" to "BC". This simple "monoalphabetic substitution cipher" provides almost no security, because an attacker who has the encoded message can either use frequency analysis to guess the key, or just try all 25 keys.
**Caesar cipher** - Implement a Caesar cipher, both encoding and decoding. The key is an integer from 1 to 26. This cipher rotates the letters of the alphabet (A to Z). The encoding replaces each letter with the 1st to 26th next letter in the alphabet (wrapping Z to A). So key 2 encrypts "HI" to "JK", but key 20 encrypts "HI" to "BC". This simple "monoalphabetic substitution cipher" provides almost no security, because an attacker who has the encoded message can either use frequency analysis to guess the key, or just try all 26 keys.

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2 changes: 1 addition & 1 deletion Security/README.md
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
Security
-------------

**Caesar cipher** - Implement a Caesar cipher, both encoding and decoding. The key is an integer from 1 to 25. This cipher rotates the letters of the alphabet (A to Z). The encoding replaces each letter with the 1st to 25th next letter in the alphabet (wrapping Z to A). So key 2 encrypts "HI" to "JK", but key 20 encrypts "HI" to "BC". This simple "monoalphabetic substitution cipher" provides almost no security, because an attacker who has the encoded message can either use frequency analysis to guess the key, or just try all 25 keys.
**Caesar cipher** - Implement a Caesar cipher, both encoding and decoding. The key is an integer from 1 to 26. This cipher rotates the letters of the alphabet (A to Z). The encoding replaces each letter with the 1st to 26th next letter in the alphabet (wrapping Z to A). So key 2 encrypts "HI" to "JK", but key 20 encrypts "HI" to "BC". This simple "monoalphabetic substitution cipher" provides almost no security, because an attacker who has the encoded message can either use frequency analysis to guess the key, or just try all 26 keys.