Cryptography

__NOTOC__ {{DISPLAYTITLE:Cryptography}} 600x320px|Jefferson's disk cipher. Welcome to Cryptography, the study of obfuscating data to unintended recipients. Cryptography Part I: Introducing Cryptography Introduction to Cryptography History of Cryptography Classical Cryptography Contemporary Cryptography Cryptography in Popular Culture Quantum Cryptography Timeline of Notable Events Fundamental Concepts Goals of Cryptography Goals of Cryptanalysis Role of Cryptography in Computer Security Symmetric Key Ciphers Asymmetric Key Ciphers Random Number Generation Hashes Key Distribution and Authentication (key management and the web of trust) Common flaws and weaknesses Secure Passwords /S-box/ Part II: Designing Crypto-systems The Basic Principles Little Secrets Hide Bigger Secrets Open Algorithms and the Value of Peer-Review Think Like a Cryptanalyst Cryptography/Error Correction Systems Mathematical Background Computer Security is More Than Encryption Unbroken is Not Necessarily Unbreakable Part III: Cryptanalysis The Basic Principles Weaknesses Proportionality of Secrecy Length of the key Quality of Random Source Plaintext effect on Ciphertext Statistical Leaking Faulty Implementation Inadequate Peer-Review Social Engineering and Coercion Leakage and Side Channels Attacks Brute-Force Attack Dictionary Attack Frequency Analysis Index of Coincidence Linear Cryptanalysis Differential Cryptanalysis Meet in the Middle Attack /Man-in-the-middle attack/ /Breaking Hash Algorithms/ Collisions Generating Exploiting Birthday Attack Joux Attack Time Memory Trade Off (rainbow tables) How Historical Systems Were Broken Transposition Ciphers Caesar Cipher Enigma Machine Permutation Cipher Vigenère Cipher Part IV: Using Cryptosystems Applying Cryptography Digital Signatures Introduction to Digital Signatures DSA Database protection E-Cash E-Voting DRM Biometrics Anonymity Classical Ciphers Beale Cipher Transposition Ciphers /Caesar cipher/ Atbash Cipher /Autokey cipher/ Playfair Cipher /Polyalphabetic substitution/ Scytale /Substitution cipher/ /nomenclator/ Permutation Cipher /Affine cipher/ /Vigenère cipher/ /Polybius square/ /ADFGVX cipher/ /Fractionation/ (Polybius square, straddling checkerboard, CT-37c conversion table, etc.) Contemporary Ciphers Symmetric Ciphers Enigma Machine /Solitaire cipher/ One-Time Pads /Ciphersaber/ Data Encryption Standard (DES) Advanced Encryption Standard /full-disk encryption/ Asymmetric Ciphers Overview /A Basic Public Key Example/ RSA ElGamal Elliptic Curve /Blum-Goldwasser/ Hashes /MD5/ /SHA-1/ /SHA-2/ /RadioGatún/, the direct predecessor of SHA-3 /SHA-3/ RIPEMD-160 /Tiger/ /message authentication/ code (often MAC); A MAC algorithm is sometimes called a keyed (cryptographic) hash function. /Protocols/ Authentication protocols e.g. Kerberos Key exchange protocols Diffie-Hellman Secure Communications e.g. SSL, SSH /Generate a keypair using OpenSSL/ Part V: Cryptography and Society The Changing Nature of Cryptographic Use Cryptography, Governments and Laws Expectations of Normal Users Part VI: Miscellaneous Future Possibilities Faster, More Parallel Linear Computers Glossary of Terms Further Reading Appendix A: Mathematical background Number Theory Group Theory Computational Complexity Prime numbers Currently ungrouped content Tabula Recta Commitment schemes Zero-knowledge proofs Open source implementation of cryptographic algorithms /initialization vector/ /Linear Cryptanalysis/ /Differential Cryptanalysis/ Almost all of these topics have articles about them in Wikipedia (there are about 50-100 crypto related articles) so many sections could be imported. Perhaps this needs a little Discussion.--RobKohr 17:14, 22 Nov 2004 (UTC) Cryptography/Scratch pad - a mid-way ground for importing articles from Wikipedia. Pages to be merged into the text. Cryptography/Prime Curve/Affine Coordinates Cryptography/Prime Curve/Chudnovsky Coordinates Cryptography/Prime Curve/Jacobian Coordinates Cryptography/Prime Curve/Standard Projective Coordinates Cryptography/Notes Sources: :Wikipedia:cryptography, :Wikipedia:Transposition cipher, :Wikipedia:Caesar cipher, :Wikipedia:Frequency analysis, :Wikipedia:Brute-force search. Computer science Applied mathematics C 25% es:Introducción a la Criptografía it:Crittografia