Caesar cipher
Alphabetic shift encryption
A Caesar cipher is a simple encryption method that shifts each letter in a message by a fixed number of positions in the alphabet.
Named after Julius Caesar, who reportedly used it for military correspondence, this technique is one of the earliest and most basic forms of cryptography.
If the shift is three, A becomes D, B becomes E, and so on.
The kids used a Caesar cipher to write secret notes.
Though trivially easy to break with modern methods, it remains a common introduction to cryptographic concepts.
Movement or work period
- rotationTurning on an axis
- offsetCompensate by opposing force
- alphabetLanguage's letter system
- substitutionExchange of one for another
plaintext · ciphertext · key · wrap around · encode · decode · transformation
Identifying regularities in inputs
- brute forcePower over technique
- crackNarrow break or attempt
- decryptReverse encoding process
- cryptanalysisStudy of breaking ciphers
vulnerability · weakness · statistical analysis · trial and error · breaking · solving
Italy's capital city
- ancientVery old indeed
- LatinAncient Roman language
- manuscriptOriginal text before publication
- papyrusAncient plant-derived writing material
inscription · classical antiquity · Roman Empire · military communication · Gallic Wars
Challenge testing ingenuity
- introductionPreliminary section or presentation
- beginnerOne who lacks experience
- teachingProfession of instructing others
- learningGaining knowledge gradually
example · decoder ring · secret code · escape room · Ovaltine
shift
Movement or work period
substitution · plaintext · ciphertext · key · wrap around · encode · decode · transformation
pattern recognition
Identifying regularities in inputs
- brute forcePower over technique
- crackNarrow break or attempt
- decryptReverse encoding process
cryptanalysis · vulnerability · weakness · statistical analysis · trial and error · breaking · solving
Rome
Italy's capital city
- ancientVery old indeed
- LatinAncient Roman language
- manuscriptOriginal text before publication
papyrus · inscription · classical antiquity · Roman Empire · military communication · Gallic Wars
puzzle
Challenge testing ingenuity
- introductionPreliminary section or presentation
- beginnerOne who lacks experience
- teachingProfession of instructing others
learning · example · decoder ring · secret code · escape room · Ovaltine
cipher, decipher, Caesar, ciphers, deciphers, deciphered, ciphering, encipher, Julius Caesar