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Report: Cryptography

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WORLD-INFOSTRUCTURE > CRYPTOGRAPHY > SOME ESSENTIAL DEFINITIONS

some essential definitions

some essential definitions in the field of cryptography are:
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cryptoanalysis
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cryptology
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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)

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

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Edward Heath
Conservative prime minister of Great Britain from 1970 to 1974. Of modest origins, Heath was educated at Oxford, where he was elected president of the University Conservative Association in 1937. In 1938, as chairman of the Federation of University Conservative Associations and president of the Oxford Union, he actively opposed the policy of appeasement toward Nazi Germany pursued by the Conservative prime minister Neville Chamberlain. He served in the army during World War II, worked in the Ministry of Civil Aviation in 1946-47, was editor of the Church Times from January 1948 to October 1949, and then became a member of a merchant banking firm.