Index of Cryptography Articles - S

S

S-1 block cipher • SAFER • Salsa20 • Salt (cryptography) • SAM card • SAML • SAVILLE • SC2000 • Schnorr group • Schnorr signature • Schoof–Elkies–Atkin algorithm • SCIP • Scott Vanstone • Scrambler • Scramdisk • Scream (cipher) • 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 Algorithm • Secure hypertext transfer protocol • Secure key issuing cryptography • Secure multiparty computation • Secure Neighbor Discovery Protocol • Secure Real-time Transport Protocol • Secure remote password protocol • Secure Shell • Secure telephone • Secure Terminal Equipment • Secure voice • SecurID • Security association • Security engineering • Security parameter • Security protocol notation • Security through obscurity • Security token • SEED • Selected Areas in Cryptography • Self-certifying File System • Self-certifying key • Self-shrinking generator • Self-signed certificate • Semantic security • Serge Vaudenay • Serpent (cipher) • Session key • SFTPPlus • SHACAL • Shafi Goldwasser • SHA-1 • SHA-2 • Shared secret • SHARK • Shaun Wylie • Shor's algorithm • Shrinking generator • Shugborough House inscription • Side channel attack • Siemens and Halske T52 • SIGABA • SIGCUM • SIGINT • Signals Intelligence Service • Signcryption • SIGSALY • SILC (protocol) • Silvio Micali • Simple Authentication and Security Layer • Simple public key infrastructure • Simple XOR cipher • S/KEY • Skipjack (cipher) • Slide attack • Slidex • Small subgroup confinement attack • S/MIME • SMS4 • Snake oil (cryptography) • Snefru • SNOW • Snuffle • SOBER-128 • Solitaire (cipher) • Solomon Kullback • SOSEMANUK • Special Collections Service • Spectr-H64 • SPEKE (cryptography) • Square (cipher) • Ssh-agent • SSH file transfer protocol • SSLeay • Stafford Tavares • Ståle Schumacher Ytteborg • Station CAST • Station HYPO • Station-to-Station protocol • Statistical cryptanalysis • Stefan Lucks • Steganalysis • Steganography • Straddling checkerboard • Stream cipher • Stream cipher attack • Strong cryptography • Strong RSA assumption • Stuart Milner-Barry • STU-II • STU-III • Stunnel • Substitution box • Substitution cipher • Substitution-permutation network • Superencryption • Swedish National Defence Radio Establishment • SWIFFT • SXAL/MBAL • Symmetric-key algorithm • SYSKEY •