ciphers
Encrypted message systems
Ciphers are codes—systems for converting messages into secret form, or the messages themselves.
A cipher can also be a key for decoding.
The word extends to anything without significance: a person who is a cipher lacks influence or personality, a mere zero.
To cipher is to do arithmetic, now old-fashioned: She sat ciphering in her notebook.
Converting data into code
- decryptionConverting ciphertext to plaintext
- cryptanalysisStudy of breaking ciphers
- plaintextUnencoded readable information
- ciphertextEncoded, unreadable message
key · AES · RSA · symmetric · asymmetric · hashing · SHA-256 · SSL
Act of hiding something
- classifiedRestricted from disclosure
- covertIntentionally concealed
- clandestineConcealed from authorities
- hiddenKept out of sight
veiled · confidential · obscured · undisclosed · cryptic · esoteric · arcane · cloak-and-dagger
Coded message puzzle
- riddlePuzzling question to solve
- brainteaserPuzzle demanding clever thought
- logicScience of valid reasoning
- anagramReshuffled letter word
- EnigmaGerman encryption apparatus
- hieroglyphicsSymbolic picture-based writing
- UltraPremium product line marker
Authentication string
- authenticationConfirming genuine identity
- two-factorAuthentication using paired credentials
- tokenRepresentative placeholder
- biometricsBody-based identity verification
PIN · firewall · authorization · cybersecurity · confidentiality · end-to-end · zero-knowledge
encryption
Converting data into code
- decryptionConverting ciphertext to plaintext
- cryptanalysisStudy of breaking ciphers
- plaintextUnencoded readable information
ciphertext · key · AES · RSA · symmetric · asymmetric · hashing · SHA-256 · SSL · TLS
concealment
Act of hiding something
- classifiedRestricted from disclosure
- covertIntentionally concealed
- clandestineConcealed from authorities
hidden · veiled · confidential · obscured · undisclosed · cryptic · esoteric · arcane · cloak-and-dagger · spy
cryptogram
Coded message puzzle
- riddlePuzzling question to solve
- brainteaserPuzzle demanding clever thought
- logicScience of valid reasoning
anagram · acrostic · rebus · wordplay · enigma · conundrum · decoder
Turing
- EnigmaGerman encryption apparatus
- hieroglyphicsSymbolic picture-based writing
- UltraPremium product line marker
password
Authentication string
- authenticationConfirming genuine identity
- two-factorAuthentication using paired credentials
- tokenRepresentative placeholder
biometrics · PIN · firewall · authorization · cybersecurity · confidentiality · end-to-end · zero-knowledge
zero
Numerical absence of quantity
nil · nonentity · nobody · insignificance · numeral · digit · notation
- problem-solvingproblem solving, puzzles, riddles, logic, solutions
- espionagespy, spies, double agent, double agents, spying
- puzzles & codescryptogram, codes, puzzles, anagrams, decryption
- secrecy in literaturemystery, secrets, spies, espionage, spy novels
- secret codessecret code, secret codes, code word, password, passphrase
- Codebreakingcodebreakers, codebreaking, cryptanalysis, codes, decryption
cipherssomebodies
People of importance
VIPs · luminaries · personalities · notables · heavyweights
- substitution cipherEncoding by character replacement
- Vigenère cipherEncryption using repeating keyword
- Caesar cipherAlphabet rotation encryption method
- cipher machineMechanical encryption device
- cipher keyCode-breaking information
cipher, decipher, deciphers, deciphered, ciphering, decipherable, ciphered, encipher, decipherer