The list is not necessarily complete or up to date - if you see an article that should be here but isn't (or one that shouldn't be here but is), please do update the page accordingly.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Digits and symbols
3DES -- 3-Way --
A
A5 -- Adi Shamir -- Advanced Encryption Standard -- AES -- Alan Turing -- Leone Battista Alberti -- algebraic cryptanalysis -- anonymous remailer -- Arthur Scherbius -- asymmetric key algorithm -- Atbash cipher --
B
Babington plot -- bit-flipping attack -- Bletchley Park -- blinding (cryptography) -- block cipher -- block cipher modes of operation -- block size -- Blowfish encryption algorithm -- Blum Blum Shub -- Boris Hagelin -- Bruce Schneier -- brute force attack --
C
Caesar cipher -- chaffing and winnowing -- cipher -- cipher-block chaining -- ciphertext -- Claude Shannon -- Clipper chip --Clifford Cocks -- code -- codebook -- codec -- Cold War -- Colossus computer -- confusion and diffusion -- courier -- covert channel -- covertext -- cryptanalysis -- crypto -- cryptographers -- cryptographic algorithm -- cryptographic key -- cryptographically secure pseudo-random number generator -- cryptography -- cryptology --
D
Daniel J. Bernstein -- Data Encryption Standard -- David Kahn -- David Wagner -- decryption -- DeCSS -- DES -- dictionary attack -- differential cryptanalysis -- differential power analysis -- Diffie-Hellman -- digital fingerprint -- digital signature -- digital watermark -- dining cryptographers protocol -- diplomatic bag --
E
Echelon -- Edward Hebern -- electronic cash -- electronic codebook -- El Gamal -- Elizabeth Friedman -- elliptic curve cryptography -- encryption -- Enigma -- entropy pool --espionage --
F
Feistel network -- FISH
G
GCHQ -- Geheimfernschreiber -- Gilbert Vernam -- GOST -- GPG -- group (mathematics)
H
hardware random number generator -- hash function -- Henryk Zygalski --
I
IACR -- IDEA encryption algorithm -- IKE -- index of coincidence -- information theory -- International Data Encryption Algorithm -- invisible ink -- IPSec -- IPv6 -- Iraqi Block Cipher -- ISAAC -- ISAKAMP --
J
Jerzy Rozycki -- Joan Daemen -- John Wilkins
K
Kasiski attack -- Kerckhoffs' principle -- key escrow -- key exchange -- KGB -- known-ciphertext attack -- known-plaintext attack --
L
Leo Marks -- Leonard Adleman -- letter-substitution cipher -- linear cryptanalysis -- Lorenz cypher -- Lucifer cipher --
M
man-in-the-middle attack -- Marian Rejewski -- Mars encryption algorithm -- Martin Hellman -- Max Newman -- MD4 -- MD5 -- message digest -- microdot -- monoalphabetic substitution --
N
nonce (cryptography) -- NSA -- null cipher -- number theory --
O
One-time pad --
P
Permissive Action Link -- Phil Zimmermann -- Pike -- PKI -- plaintext -- poem code -- polyalphabetic substitution -- Polybius square -- Pretty Good Privacy -- pseudo-random number generator -- public key crytography -- Purple code --
Q
Quantum Cryptography --
R
Ralph Merkle -- Railroad fence cypher -- RC4 -- RC4 cipher -- RC5 encryption algorithm -- RC6 encryption algorithm -- related-key attack -- RIPEMD-160 -- Ronald Rivest -- ROT-13 -- rotor machine -- RSA -- rubber-hose cryptanalysis
S
S-box -- Safer block cipher -- Scott Vanstone -- scrambler -- scytale -- SEAL -- secret writing -- secure cryptoprocessor -- Secure Sockets Layer -- security engineering -- Serpent encryption algorithm -- SHA -- SHA-1 -- shrinking generator -- SIGABA -- SIGINT -- Skipjack encryption algorithm -- slide attack cryptanalysis -- snake oil -- steganography -- stegotext -- straddling checkerboard -- stream cipher -- STURGEON -- symmetric key algorithm --
T
The Codebreakers -- The Communications Theory of Secrecy Systems -- TEMPEST -- Tiger hash function -- timing attack -- traffic analysis -- transposition cipher -- trapdoor function -- Tunny -- Twofish encryption algorithm -- Typex --
U
Ultra -- Ultra secret -- unicity distance -- USSR --
V
VENONA -- VIC cipher -- Vigenere cipher -- Vincent Rijmen --
W
Whitfield Diffie -- William Friedman --
X
XOR --
Y
Yarrow algorithm --
Z
Zero-knowledge proof -- zeroise --