Index of cryptography articles
Articles related to cryptography include:
A
A5/1 •A5/2 •
ABA digital signature guidelines •
ABC (stream cipher) •
Abraham Sinkov •
Acoustic cryptanalysis •
Adaptive chosen-ciphertext attack •
Adaptive chosen plaintext and chosen ciphertext attack •
Advantage (cryptography) •
ADFGVX cipher •
Adi Shamir •
Advanced Access Content System •
Advanced Encryption Standard •
Advanced Encryption Standard process •
Adversary •
AEAD block cipher modes of operation •
Affine cipher •
Agnes Meyer Driscoll •
AKA (security) •
Akelarre (cipher) •
Alan Turing •
Alastair Denniston •
Al Bhed language •
Alex Biryukov •
Alfred Menezes •
Algebraic Eraser •
Algorithmically random sequence •
Alice and Bob •
All-or-nothing transform •
Alphabetum Kaldeorum •
Alternating step generator •
American Cryptogram Association •
AN/CYZ-10 •
Anonymous publication •
Anonymous remailer •
Antoni Palluth •
Anubis (cipher) •
Argon2 •
ARIA (cipher) •
Arlington Hall •
Arne Beurling •
Arnold Cipher •
Array controller based encryption •
Arthur Scherbius •
Arvid Gerhard Damm •
Asiacrypt •
Atbash •
Attribute-based encryption •
Attack model •
Auguste Kerckhoffs •
Authenticated encryption •
Authentication •
Authorization certificate •
Autokey cipher •
Avalanche effect
B
B-Dienst •Babington Plot •
Baby-step giant-step •
Bacon's cipher •
Banburismus •
Bart Preneel •
BaseKing •
BassOmatic •
BATON •
BB84 •
Beale ciphers •
BEAR and LION ciphers •
Beaufort cipher •
Beaumanor Hall •
Bent function •
Berlekamp–Massey algorithm •
Bernstein v. United States •
BestCrypt •
Biclique attack •
BID/60 •
BID 770 •
Bifid cipher •
Bill Weisband •
Binary Goppa code •
Biometric word list •
Birthday attack •
Bit-flipping attack •
BitTorrent protocol encryption •
Biuro Szyfrów •
Black Chamber •
Blaise de Vigenère •
Bletchley Park •
Blinding (cryptography) •
Blind signature •
Block cipher •
Block cipher mode of operation •
Block size (cryptography) •
Blowfish (cipher) •
Blum Blum Shub •
Blum–Goldwasser cryptosystem •
Bomba (cryptography) •
Bombe •
Book cipher •
Books on cryptography •
Boomerang attack •
Boris Hagelin •
Bouncy Castle (cryptography) •
Broadcast encryption •
Bruce Schneier •
Brute-force attack •
Brute Force: Cracking the Data Encryption Standard •
Burrows–Abadi–Needham logic •
Burt Kaliski
C
C2Net •C-36 (cipher machine) •
C-52 (cipher machine) •
Caesar cipher •
Camellia (cipher) •
CAPICOM •
Capstone (cryptography) •
Cardan grille •
Card catalog (cryptology) •
Carlisle Adams •
CAST-128 •
CAST-256 •
Cayley–Purser algorithm •
CBC-MAC •
CCM mode •
CCMP •
CD-57 •
CDMF •
Cellular Message Encryption Algorithm •
Centiban •
Central Security Service •
Centre for Applied Cryptographic Research •
Central Bureau •
Certicom •
Certificate authority •
Certificate-based encryption •
Certificateless cryptography •
Certificate revocation list •
Certificate signing request •
Certification path validation algorithm •
Chaffing and winnowing •
Challenge-Handshake Authentication Protocol •
Challenge–response authentication •
Chosen-ciphertext attack •
Chosen-plaintext attack •
CIKS-1 •
Cipher disk •
Cipher runes •
Cipher security summary •
CipherSaber •
Ciphertext expansion •
Ciphertext indistinguishability •
Ciphertext-only attack •
Ciphertext stealing •
CIPHERUNICORN-A •
CIPHERUNICORN-E •
Classical cipher •
Claude Shannon •
Claw-free permutation •
Cleartext •
CLEFIA •
Clifford Cocks •
Clipper chip •
Clock (cryptography) •
Clock drift •
CMVP •
COCONUT98 •
Codebook •
Code (cryptography) •
Code talker •
Codress message •
Cold boot attack •
Collision attack •
Collision resistance •
Colossus computer •
Combined Cipher Machine •
Commitment scheme •
Common Scrambling Algorithm •
Communications security •
Communications Security Establishment •
Communication Theory of Secrecy Systems •
Comparison of disk encryption software •
Comparison of SSH clients •
Completeness (cryptography) •
Complexity trap •
Computational Diffie–Hellman assumption •
Computational hardness assumption •
Computer insecurity •
Computer and network surveillance •
COMSEC equipment •
Conch (SSH) •
Concrete security •
Conel Hugh O'Donel Alexander •
Confidentiality •
Confusion and diffusion •
Content Scramble System •
Controlled Cryptographic Item •
Corkscrew (program) •
Correlation immunity •
COSIC •
Covert channel •
Cover (telecommunications) •
Crab (cipher) •
Cramer–Shoup cryptosystem •
CRAM-MD5 •
CRHF •
Crib (cryptanalysis) •
Crowds (anonymity network) •
Crypt (C) •
Cryptanalysis •
Cryptanalysis of the Enigma •
Cryptanalysis of the Lorenz cipher •
Cryptanalytic computer •
Cryptex •
Cryptico •
Crypto AG •
Crypto-anarchism •
Crypto API (Linux) •
Microsoft CryptoAPI •
CryptoBuddy •
Cryptochannel •
CRYPTO (conference) •
Cryptogram •
Cryptographically Generated Address •
Cryptographically secure pseudorandom number generator •
Cryptographically strong •
Cryptographic Application Programming Interface •
Cryptographic hash function •
Cryptographic key types •
Cryptographic Message Syntax •
Cryptographic primitive •
Cryptographic protocol •
Cryptographic Service Provider •
Cryptographie indéchiffrable •
Cryptography •
Cryptography in Japan •
Cryptography newsgroups •
Cryptography standards •
Crypto: How the Code Rebels Beat the Government—Saving Privacy in the Digital Age •
Cryptologia •
Cryptology ePrint Archive •
Cryptology Research Society of India •
Cryptomathic •
Cryptome •
Cryptomeria cipher •
Cryptonomicon •
CrypTool •
Crypto-society •
Cryptosystem •
Cryptovirology •
CRYPTREC •
CS-Cipher •
Curve25519 • Curve448 • Custom hardware attack •
Cycles per byte •
Cyclometer •
Cypherpunk •
Cyrillic Projector
D
D'Agapeyeff cipher •Daniel J. Bernstein •
Data Authentication Algorithm •
Data Encryption Standard •
Datagram Transport Layer Security •
David Chaum •
David Kahn •
David Naccache •
David Wagner •
David Wheeler (computer scientist) •
Davies attack •
Davies–Meyer hash •
DEAL •
Decipherment •
Decisional Diffie–Hellman assumption •
Decorrelation theory •
Decrypt •
DeCSS •
Defence Signals Directorate •
Degree of anonymity •
Delegated Path Discovery •
Delegated Path Validation •
Deniable encryption •
Derek Taunt •
Derived unique key per transaction •
DES Challenges •
DES supplementary material •
DES-X •
Deterministic encryption •
DFC (cipher) •
Dictionary attack •
Differential cryptanalysis •
Differential-linear attack •
Differential power analysis •
Diffie–Hellman key exchange •
Diffie–Hellman problem •
DigiCipher 2 •
Digital Fortress •
Digital rights management •
Digital signature •
Digital Signature Algorithm •
Digital signature forgery •
Digital timestamping •
Digital watermarking •
Dilly Knox •
Dining cryptographers problem •
Diplomatic bag •
Direct Anonymous Attestation •
Discrete logarithm •
Disk encryption •
Disk encryption hardware •
Disk encryption software •
Distance-bounding protocol •
Distinguishing attack •
Distributed.net •
DMA attack •
dm-crypt •
Dmitry Sklyarov •
DomainKeys •
Don Coppersmith •
Dorabella Cipher •
Double Ratchet Algorithm •
Doug Stinson •
Dragon (cipher) •
DRYAD •
Dual_EC_DRBG
E
E0 (cipher) •E2 (cipher) •
E4M •
EAP-AKA •
EAP-SIM •
EAX mode •
ECC patents •
ECHELON •
ECRYPT •
Edouard Fleissner von Wostrowitz •
Edward Hebern •
Edward Scheidt •
Edward Travis •
EFF DES cracker •
Efficient Probabilistic Public-Key Encryption Scheme •
EKMS •
Electronic Communications Act 2000 •
Electronic money •
Electronic signature •
Electronic voting •
ElGamal encryption •
ElGamal signature scheme •
Eli Biham •
Elizebeth Friedman •
Elliptic-curve cryptography •
Elliptic-curve Diffie–Hellman •
Elliptic Curve DSA • EdDSA • Elliptic curve only hash •
Elonka Dunin •
Encrypted function •
Encrypted key exchange •
Encrypting File System •
Encryption •
Encryption software •
Enigmail •
Enigma machine •
Enigma rotor details •
Entrust •
Ernst Fetterlein •
eSTREAM •
Étienne Bazeries •
Eurocrypt •
EuroCrypt •
Export of cryptography •
Extensible Authentication Protocol
F
Fast Software Encryption •Fast syndrome-based hash •
FEA-M •
FEAL •
Feige–Fiat–Shamir identification scheme •
Feistel cipher •
Félix Delastelle •
Fialka •
Filesystem-level encryption •
FileVault •
Fill device •
Financial cryptography •
FIPS 140 •
FIPS 140-2 •
Firefly (key exchange protocol) •
FISH (cipher) •
Fish (cryptography) •
Floradora •
Fluhrer, Mantin and Shamir attack •
Format-preserving encryption •
Fortezza •
Fort George G. Meade •
Fortuna (PRNG) •
Four-square cipher •
Franciszek Pokorny •
Frank A. Stevenson •
Frank Rowlett •
Freenet •
FreeOTFE •
FreeS/WAN •
Frequency analysis •
Friedrich Kasiski •
Fritz-chip •
FROG •
FROSTBURG •
FTP over SSH •
Full disk encryption •
Full Domain Hash •
F. W. Winterbotham
G
Galois/Counter Mode •Gardening (cryptanalysis) •
GCHQ Bude •
GCHQ CSO Morwenstow •
GDES •
Generic Security Services Application Program Interface •
George Blakley •
George Scovell •
GGH encryption scheme •
GGH signature scheme •
Gilbert Vernam •
GMR (cryptography) •
GNU Privacy Guard •
GnuTLS •
Goldwasser–Micali cryptosystem •
Gordon Welchman •
GOST (block cipher) •
GOST (hash function) •
Government Communications Headquarters •
Government Communications Security Bureau •
Grain (cipher) •
Grand Cru (cipher) •
Great Cipher •
Grill (cryptology) •
Grille (cryptography) •
Group-based cryptography •
Group signature •
Grover's algorithm •
Gustave Bertrand •
Gwido Langer
H
H.235 •HAIFA construction •
HAIPE •
Hans Dobbertin •
Hans-Thilo Schmidt •
Hard-core predicate •
Hardware random number generator •
Hardware security module •
Harold Keen •
Harry Hinsley •
Harvest (computer) •
HAS-160 •
Hash-based cryptography •
Hashcash •
Hash chain •
Hash function security summary •
Hash list •
Hasty Pudding cipher •
HAVAL •
HC-256 •
HC-9 •
Heath Robinson (codebreaking machine) •
Hebern rotor machine •
Henri Braquenié •
Henryk Zygalski •
Herbert Yardley •
Hidden Field Equations •
Hideki Imai •
Hierocrypt •
High-bandwidth Digital Content Protection •
Higher-order differential cryptanalysis •
Hill cipher •
History of cryptography •
HMAC •
HMAC-based One-time Password algorithm •
Horst Feistel •
Howard Heys •
Https •
Hugo Hadwiger •
Hugo Koch •
Hushmail •
Hut 6 •
Hut 8 •
HX-63 •
Hybrid cryptosystem •
Hyperelliptic curve cryptography •
Hyper-encryption
I
Ian Goldberg •IBM 4758 •
ICE (cipher) •
ID-based cryptography •
IDEA NXT •
Identification friend or foe •
IEEE 802.11i •
IEEE P1363 •
I. J. Good •
Illegal prime •
Impossible differential cryptanalysis •
Index of coincidence •
Indifferent chosen-ciphertext attack •
Indistinguishability obfuscation •
Information leakage •
Information Security Group •
Information-theoretic security •
Initialization vector •
Integer factorization •
Integral cryptanalysis •
Integrated Encryption Scheme •
Integrated Windows Authentication •
Interlock protocol •
Intermediate certificate authorities •
International Association for Cryptologic Research •
International Data Encryption Algorithm •
Internet Key Exchange •
Internet Security Association and Key Management Protocol •
Interpolation attack •
Invisible ink •
IPsec •
Iraqi block cipher •
ISAAC (cipher) •
ISO 19092-2 •
ISO/IEC 9797 •
Ivan Damgård
J
Jacques Stern (cryptographer) •JADE (cypher machine) •
James Gillogly •
James H. Ellis •
James Massey •
Jan Graliński •
Jan Kowalewski •
Japanese naval codes •
Java Cryptography Architecture •
Jefferson disk •
Jennifer Seberry •
Jerzy Różycki •
Joan Daemen •
Johannes Trithemius •
John Herivel •
John Kelsey (cryptanalyst) •
John R. F. Jeffreys •
John Tiltman •
Jon Lech Johansen •
Josef Pieprzyk •
Joseph Desch •
Joseph Finnegan (cryptographer) •
Joseph Mauborgne •
Joseph Rochefort •
Journal of Cryptology •
Junger v. Daley
K
Kaisa Nyberg •Kalyna (cipher) •
Kasiski examination •
KASUMI •
KCDSA •
KeePass •
Kerberos (protocol) •
Kerckhoffs's principle •
Kevin McCurley (cryptographer) •
Key-agreement protocol •
Key authentication •
Key clustering •
Key (cryptography) •
Key derivation function •
Key distribution center •
Key escrow •
Key exchange •
Keyfile •
Key generation •
Key generator •
Key management •
Key-recovery attack •
Key schedule •
Key server (cryptographic) •
Key signature (cryptography) •
Keysigning •
Key signing party •
Key size •
Key space (cryptography) •
Keystream •
Key stretching •
Key whitening •
KG-84 •
KHAZAD •
Khufu and Khafre •
Kiss (cryptanalysis) •
KL-43 •
KL-51 •
KL-7 •
Kleptography •
KN-Cipher •
Knapsack problem •
Known-key distinguishing attack •
Known-plaintext attack •
KOI-18 •
KOV-14 •
Kryha •
Kryptos •
KSD-64 •
Kupyna •
Kuznyechik •
KW-26 •
KW-37 •
KY-3 •
KY-58 •
KY-68 •
KYK-13
L
Lacida •Ladder-DES •
Lamport signature •
Lars Knudsen •
Lattice-based cryptography •
Laurance Safford •
Lawrie Brown •
LCS35 •
Leo Marks •
Leonard Adleman •
Leon Battista Alberti •
Leo Rosen •
Leslie Yoxall •
LEVIATHAN (cipher) •
LEX (cipher) •
Linear cryptanalysis •
Linear-feedback shift register •
Link encryption •
List of ciphertexts •
List of cryptographers •
List of cryptographic file systems •
List of cryptographic key types •
List of telecommunications encryption terms • List of people associated with Bletchley Park •
List of SFTP clients •
List of SFTP server software •
LOKI •
LOKI97 •
Lorenz cipher •
Louis W. Tordella •
Lsh •
Lucifer (cipher) •
Lyra2
M
M6 (cipher) •M8 (cipher) •
M-209 •
M-325 •
M-94 •
MacGuffin (cipher) •
Madryga •
MAGENTA •
Magic (cryptography) •
Maksymilian Ciężki •
Malcolm J. Williamson •
Malleability (cryptography) •
Man-in-the-middle attack •
Marian Rejewski •
MARS (cryptography) •
Martin Hellman •
MaruTukku •
Massey–Omura cryptosystem •
Matt Blaze •
Matt Robshaw •
Max Newman •
McEliece cryptosystem •
mcrypt •
MD2 (cryptography) •
MD4 •
MD5 •
MD5CRK •
MDC-2 •
MDS matrix •
Mean shortest distance •
Meet-in-the-middle attack •
Mental poker •
Mercury (cipher machine) •
Mercy (cipher) •
Meredith Gardner •
Merkle signature scheme •
Merkle–Damgård construction •
Merkle–Hellman knapsack cryptosystem •
Merkle's Puzzles •
Merkle tree •
MESH (cipher) •
Message authentication •
Message authentication code •
Message forgery •
MI8 •
Michael Luby •
MICKEY •
Microdot •
Military Cryptanalysis (book) (William F. Friedman) •
Military Cryptanalytics •
Mimic function •
Mirror writing •
MISTY1 •
Mitsuru Matsui •
MMB (cipher) •
Mod n cryptanalysis •
MQV •
MS-CHAP •
MUGI •
MULTI-S01 •
MultiSwap •
Multivariate cryptography
N
National Communications Centre •National Cryptologic Museum •
National Security Agency •
National Cipher Challenge •
Navajo I •
Neal Koblitz •
Needham–Schroeder protocol •
Negligible function •
NEMA (machine) •
NESSIE •
Network Security Services •
Neural cryptography •
New Data Seal •
NewDES •
N-Hash •
Nicolas Courtois •
Niederreiter cryptosystem •
Niels Ferguson •
Nigel de Grey •
Nihilist cipher •
Nikita Borisov •
Nimbus (cipher) •
NIST hash function competition •
Nonlinear-feedback shift register •
NOEKEON •
Non-malleable codes •
Noreen •
Nothing up my sleeve number •
NSA cryptography •
NSA encryption systems •
NSAKEY •
NSA Suite A Cryptography •
NSA Suite B Cryptography •
NT LAN Manager •
NTLMSSP •
NTRUEncrypt •
NTRUSign •
Null cipher •
Numbers station •
NUSH •
NTRU
O
Oblivious transfer •OCB mode •
Oded Goldreich •
Off-the-Record Messaging •
Okamoto–Uchiyama cryptosystem •
OMI cryptograph •
OMNI (SCIP) •
One-key MAC •
One-time pad •
One-time password •
One-way compression function •
One-way function •
Onion routing •
Online Certificate Status Protocol •
OP-20-G •
OpenPGP card •
OpenSSH •
OpenSSL •
Openswan •
OpenVPN •
Operation Ruthless •
Optimal asymmetric encryption padding •
Over the Air Rekeying •
OTFE •
Otway–Rees protocol
P
Padding (cryptography) •Padding oracle attack •
Paillier cryptosystem •
Pairing-based cryptography •
Panama (cryptography) •
Partitioning cryptanalysis •
Passive attack •
Passphrase •
Password •
Password-authenticated key agreement •
Password cracking •
Password Hashing Competition •
Paul Kocher •
Paulo Pancatuccio •
Paulo S. L. M. Barreto •
Paul van Oorschot •
PBKDF2 •
PC Bruno •
Pepper (cryptography) •
Perfect forward secrecy •
Perforated sheets •
Permutation cipher •
Peter Gutmann (computer scientist) •
Peter Junger •
Peter Twinn •
PGP Corporation •
PGPDisk •
PGPfone •
Phelix •
Phil Zimmermann •
Photuris (protocol) •
Physical security •
Physical unclonable function •
Pig Latin •
Pigpen cipher •
Pike (cipher) •
Piling-up lemma •
Pinwheel (cryptography) •
Piotr Smoleński •
Pirate decryption •
PKC (conference) •
PKCS •
PKCS 11 •
PKCS 12 •
PKIX •
Plaintext •
Plaintext-aware encryption •
Playfair cipher •
Plugboard •
PMAC (cryptography) •
Poem code •
Pohlig–Hellman algorithm •
Point-to-Point Tunneling Protocol •
Pointcheval–Stern signature algorithm •
Poly1305 •
Polyalphabetic cipher •
Polybius square •
Post-quantum cryptography •
Post-Quantum Cryptography Standardization •
Power analysis •
Preimage attack •
Pre-shared key •
Pretty Good Privacy •
Printer steganography •
Privacy-enhanced Electronic Mail •
Private Communications Technology •
Private information retrieval •
Probabilistic encryption •
Product cipher •
Proof-of-work system •
Protected Extensible Authentication Protocol •
Provable security •
Provably secure cryptographic hash function •
Proxy re-encryption •
Pseudo-Hadamard transform •
Pseudonymity •
Pseudorandom function •
Pseudorandom number generator •
Pseudorandom permutation •
Public key certificate •
Public-key cryptography •
Public key fingerprint •
Public key infrastructure •
PURPLE •
PuTTY •
Py (cipher)
Q
Q (cipher) •Qrpff •
QUAD (cipher) •
Quadratic sieve •
Quantum coin flipping •
Quantum cryptography •
Quantum digital signature •
Quantum fingerprinting •
Quantum key distribution
R
Rabbit (cipher) •Rabin cryptosystem •
Rabin signature •
RadioGatún •
Rail fence cipher •
Rainbow table •
Ralph Merkle •
Rambutan (cryptography) •
Random function •
Randomness tests •
Random number generator attack •
Random oracle •
RC2 •
RC4 •
RC5 •
RC6 •
Rebound attack •
Reciprocal cipher •
Red/black concept •
REDOC •
Red Pike (cipher) •
Reflector (cipher machine) •
Regulation of Investigatory Powers Act 2000 •
Reihenschieber •
Rekeying (cryptography) •
Related-key attack •
Replay attack •
Reservehandverfahren •
Residual block termination •
Rijndael key schedule •
Rijndael S-box •
Ring signature •
RIPEMD •
Rip van Winkle cipher •
Robert Morris (cryptographer) •
Rockex •
Rolf Noskwith •
Ron Rivest •
Room 40 •
Root certificate •
Ross J. Anderson •
Rossignols •
ROT13 •
Rotor machine •
RSA RSA •
RSA-100 •
RSA-1024 •
RSA-110 •
RSA-120 •
RSA-129 •
RSA-130 •
RSA-140 •
RSA-150 •
RSA-1536 •
RSA-155 •
RSA-160 •
RSA-170 •
RSA-180 •
RSA-190 •
RSA-200 •
RSA-2048 •
RSA-210 •
RSA-220 •
RSA-230 •
RSA-232 •
RSA-240 •
RSA-250 •
RSA-260 •
RSA-270 •
RSA-280 •
RSA-290 •
RSA-300 •
RSA-309 •
RSA-310 •
RSA-320 •
RSA-330 •
RSA-340 •
RSA-350 •
RSA-360 •
RSA-370 •
RSA-380 •
RSA-390 •
RSA-400 •
RSA-410 •
RSA-420 •
RSA-430 •
RSA-440 •
RSA-450 •
RSA-460 •
RSA-470 •
RSA-480 •
RSA-490 •
RSA-500 •
RSA-576 •
RSA-617 •
RSA-640 •
RSA-704 •
RSA-768 •
RSA-896 •
RSA-PSS •
RSA Factoring Challenge •
RSA problem •
RSA Secret-Key Challenge •
RSA Security •
Rubber-hose cryptanalysis •
Running key cipher •
Russian copulation
S
S-1 block cipher •SAFER •
Salsa20 •
Salt (cryptography) •
SAM card •
Security Support Provider Interface •
SAML •
SAVILLE •
SC2000 •
Schnorr group •
Schnorr signature •
Schoof–Elkies–Atkin algorithm •
SCIP •
Scott Vanstone •
Scrambler •
Scramdisk •
Scream (cipher) •
Scrypt •
Scytale •
Seahorse (software) •
SEAL (cipher) •
Sean Murphy (cryptographer) •
SECG •
Secret broadcast •
Secret decoder ring •
Secrets and Lies (Schneier) •
Secret sharing •
Sectéra Secure Module •
Secure access module •
Secure channel •
Secure Communication based on Quantum Cryptography •
Secure copy •
Secure cryptoprocessor •
Secure Electronic Transaction •
Secure Hash Algorithms •
Secure Hypertext Transfer Protocol •
Secure key issuing cryptography •
Secure multi-party computation •
Secure Neighbor Discovery •
Secure Real-time Transport Protocol •
Secure remote password protocol •
Secure Shell •
Secure telephone •
Secure Terminal Equipment •
Secure voice •
SecurID •
Security association •
Security engineering •
Security level •
Security parameter •
Security protocol notation •
Security through obscurity •
Security token •
SEED •
Selected Areas in Cryptography •
Self-certifying File System •
Self-shrinking generator •
Self-signed certificate •
Semantic security •
Serge Vaudenay •
Serpent (cipher) •
Session key •
SHACAL •
Shafi Goldwasser •
SHA-1 •
SHA-2 •
SHA-3 •
Shared secret •
SHARK •
Shaun Wylie •
Shor's algorithm •
Shrinking generator •
Shugborough inscription •
Side-channel attack •
Siemens and Halske T52 •
SIGABA •
SIGCUM •
SIGINT •
Signal Protocol •
Signal Intelligence Service •
Signcryption •
SIGSALY •
SILC (protocol) •
Silvio Micali •
Simple Authentication and Security Layer •
Simple public-key infrastructure •
Simple XOR cipher •
S/KEY •
Skein (hash function) •
Skipjack (cipher) •
Slide attack •
Slidex •
Small subgroup confinement attack •
S/MIME •
SM4 algorithm •
Snake oil (cryptography) •
Snefru •
SNOW •
Snuffle •
SOBER-128 •
Solitaire (cipher) •
Solomon Kullback •
SOSEMANUK •
Special Collection Service •
Spectr-H64 •
SPEKE (cryptography) •
Sponge function •
SPNEGO •
Square (cipher) •
Ssh-agent • Ssh-keygen • SSH File Transfer Protocol •
SSLeay •
Stafford Tavares •
Standard model (cryptography) •
Station CAST •
Station HYPO •
Station-to-Station protocol •
Statistical cryptanalysis •
Stefan Lucks •
Steganalysis •
Steganography •
Straddling checkerboard •
Stream cipher •
Stream cipher attacks •
Strong cryptography •
Strong RSA assumption •
Stuart Milner-Barry •
STU-II •
STU-III •
Stunnel •
Substitution box •
Substitution cipher •
Substitution–permutation network •
Superencryption •
Supersingular isogeny key exchange •
Swedish National Defence Radio Establishment •
SWIFFT •
SXAL/MBAL •
Symmetric-key algorithm •
SYSKEY
T
Tabula recta •Taher Elgamal •
Tamper resistance •
Tcpcrypt •
Television encryption •
TEMPEST •
Template:Cryptographic software •
Temporal Key Integrity Protocol •
Testery •
Thawte •
The Alphabet Cipher •
The Code Book •
The Codebreakers •
The Gold-Bug •
The Magic Words are Squeamish Ossifrage •
Theory of Cryptography Conference •
The world wonders •
Thomas Jakobsen •
Three-pass protocol •
Threshold shadow scheme •
TICOM •
Tiger (cryptography) •
Timeline of cryptography •
Time/memory/data tradeoff attack •
Time-based One-time Password algorithm •
Timing attack •
Tiny Encryption Algorithm •
Tom Berson •
Tommy Flowers •
Topics in cryptography •
Tor (anonymity network) •
Torus-based cryptography •
Traffic analysis •
Traffic-flow security •
Traitor tracing •
Transmission security •
Transport Layer Security •
Transposition cipher •
Trapdoor function •
Trench code •
Treyfer •
Trifid cipher •
Triple DES •
Trivium (cipher) •
TrueCrypt •
Truncated differential cryptanalysis •
Trusted third party •
Turing (cipher) •
TWINKLE •
TWIRL •
Twofish •
Two-square cipher •
Type 1 encryption •
Type 2 encryption •
Type 3 encryption •
Type 4 encryption •
Typex
U
UES (cipher) •Ultra (cryptography) •
UMAC •
Unbalanced Oil and Vinegar •
Undeniable signature •
Unicity distance •
Universal composability •
Universal one-way hash function
V
Venona project •Verifiable secret sharing •
Verisign •
Very smooth hash •
VEST •
VIC cipher •
VideoCrypt •
Vigenère cipher •
Vincent Rijmen •
VINSON •
Virtual private network •
Visual cryptography •
Voynich manuscript
W
Wadsworth's cipher •WAKE •
WLAN Authentication and Privacy Infrastructure •
Watermark (data file) •
Watermarking attack •
Weak key •
Web of trust •
Whirlpool (hash function) •
Whitfield Diffie •
Wide Mouth Frog protocol •
Wi-Fi Protected Access •
William F. Friedman •
William Montgomery (cryptographer) •
WinSCP •
Wired Equivalent Privacy •
Wireless Transport Layer Security •
Witness-indistinguishable proof •
Workshop on Cryptographic Hardware and Embedded Systems •
World War I cryptography •
World War II cryptography •
W. T. Tutte
X
X.509 •XDH assumption •
Xiaoyun Wang •
XML Encryption •
XML Signature •
xmx •
XSL attack •
XTEA •
XTR •
Xuejia Lai •
XXTEA
10-00-00-00-00
Y
Yarrow algorithm •Y-stations •
Yuliang Zheng
Z
Zeroisation •Zero-knowledge password proof •
Zero-knowledge proof •
Zfone •
Zodiac (cipher) •
ZRTP •
Zimmermann–Sassaman key-signing protocol •
Zimmermann Telegram