Titlebook: Decrypted Secrets; Methods and Maxims o Friedrich L. Bauer Book 20002nd edition Springer-Verlag Berlin Heidelberg 2000 Kryptanalyse.calculu

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Introductory Synopsiss, a founder with John Wallis of the Royal Society; the word ‘cryptography’ was coined in 1658 by Thomas Browne, famous English physician and writer. It is the aim of cryptography to render a message incomprehensible to an unauthorized reader: . One speaks of .: overt in the sense of being obviously

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Aims and Methods of Cryptography (passive) eavesdropping and (active) falsification (ISO 7498). Security against breaking the secrecy in the sense of confidentiality and privacy is the classic goal, whereas security against forgery and spurious messages, that is to say authentication of the sender, has only recently acquired much

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