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WORLD-INFOSTRUCTURE > CRYPTOGRAPHY > SOME ESSENTIAL DEFINITIONS

some essential definitions some essential definitions in the field of cryptography are: - cryptoanalysis - cryptology - ciphers "Few false ideas have more firmly gripped the minds of so many intelligent men than the one that, if they just tried, they could invent a cipher that no one could break." (David Kahn) codes plaintext ciphertext to encipher/encode to decipher/decode The variants of encryption systems are endless. For deciphering there exists always the same game of trial and error (first guessing the encryption method, then the code). A help to do so is pruning. Once, after a more or less long or short period a code/cipher breaks. Monoalphabetic ciphers can be broken easily and of course are no longer used today but for games. for further information on codes and ciphers etc. see: http://www.optonline.com/comptons/ceo/01004A.html http://www.ridex.co.uk/cryptology/#_Toc439908851 browse Report: Cryptography     Abstract  ... -3   Timeline 1970-2000 AD -2   Cryptography's Terms and background -1   So what does cryptography mean? 0   some essential definitions +1   Key-Systems +2   Asymmetric or Public-Key-Cryptosystems +3   Steganography      ... Epilogue  INDEX CARD     RESEARCH MATRIX  National Science Foundation (NSF) Established in 1950, the National Science Foundation is an independent agency of the U.S. government dedicated to the funding in basic research and education in a wide range of sciences and in mathematics and engineering. Today, the NSF supplies about one quarter of total federal support of basic scientific research at academic institutions. http://www.nsf.gov For more detailed information see the Encyclopaedia Britannica: http://www.britannica.com/bcom/eb/article/0/0,5716,2450+1+2440,00.html http://www.nsf.gov/