cryptology
Study of ciphers
Cryptology is the science of codes and ciphers—both making them (cryptography) and breaking them (cryptanalysis).
The field encompasses secret writing, encryption systems, and the mathematical principles behind secure communication.
She studied cryptology before joining the intelligence agency.
During wartime, cryptology becomes strategically vital.
Unencoded readable information
- ciphertextEncoded, unreadable message
- substitutionExchange of one for another
- transpositionSwapping positions of elements
- symmetricEqual on both sides
asymmetric · AES · RSA · key · keygen · algorithm · Caesar · cryptanalysis
Intelligence from communications intercepts
- interceptSeize en route
- surveillanceSystematic observation of subjects
- NSAFederal cryptologic intelligence agency
- classifiedRestricted from disclosure
counterintelligence · metadata · wiretap · clandestine · covert · encipher · wartime · military
Web encryption protocol
- TLSNetwork encryption protocol
- HTTPSEncrypted browsing standard
- VPNEncrypted network connection
- PKIDigital certificate management infrastructure
certificate · authentication · hashing · SHA · MD5 · blockchain · tokenization · end-to-end
German encryption apparatus
- BletchleyWWII cryptanalysis site
- deciphermentInterpreting unknown scripts
- cryptanalysisStudy of breaking ciphers
- cribSmall bed with rails
Turing · brute-force · Colossus · Purple · Ultra · Navajo · Rosetta · codetalkers
Readying for action
- factorizationDecomposing into multiplicative parts
- complexityState of being complicated
- algorithmFinite problem-solving procedure
- RSAPublic-key encryption algorithm
Diffie-Hellman · entropy · randomness · computation · trapdoor · lattice · permutation · combinatorics
Kept out of sight
- concealmentAct of hiding something
- watermarkTranslucent authentication mark
- microdotShrunk photo for espionage
- embeddedSet firmly within something
image · audio · subliminal · obfuscation · acrostic · masking · carrier · payload
plaintext
Unencoded readable information
- ciphertextEncoded, unreadable message
- substitutionExchange of one for another
- transpositionSwapping positions of elements
symmetric · asymmetric · AES · RSA · key · keygen · algorithm · Caesar · cryptanalysis
SIGINT
Intelligence from communications intercepts
- interceptSeize en route
- surveillanceSystematic observation of subjects
- NSAFederal cryptologic intelligence agency
classified · counterintelligence · metadata · wiretap · clandestine · covert · encipher · wartime · military · diplomatic
SSL
Web encryption protocol
PKI · certificate · authentication · hashing · SHA · MD5 · blockchain · tokenization · end-to-end · zero-knowledge
Enigma
German encryption apparatus
- BletchleyWWII cryptanalysis site
- deciphermentInterpreting unknown scripts
- cryptanalysisStudy of breaking ciphers
Turing · crib · brute-force · Colossus · Purple · Ultra · Navajo · Rosetta · codetalkers · Friedman
prime
Readying for action
- factorizationDecomposing into multiplicative parts
- complexityState of being complicated
- algorithmFinite problem-solving procedure
RSA · Diffie-Hellman · entropy · randomness · computation · trapdoor · lattice · permutation · combinatorics · probability
hidden
Kept out of sight
- concealmentAct of hiding something
- watermarkTranslucent authentication mark
- microdotShrunk photo for espionage
embedded · image · audio · subliminal · obfuscation · acrostic · masking · carrier · payload · detection
- puzzles & codescodes, puzzles, ciphers, anagrams, coded messages
cryptologyplaintext
Unencoded readable information
open communication · cleartext · transparency · plain language · open-source
cryptologysecurity breach
Unauthorized penetration of protected systems
open access · declassification · whistleblowing · public records
cryptologyopen communication
Unrestricted exchange of information
transparency · disclosure · plain language · cleartext · public broadcasting