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William Stallings is an American author. He has written computer science textbooks on operating systems , computer networks , computer organization , and cryptography . Early life
William Stallings, Cryptography and Network Security (3rd ed. p66-67): In diffusion , the statistical structure of the plaintext is dissipated into long range statistics of the ciphertext. this is achieved by having each plaintext digit affect the value of many ciphertext digits, which is equivalent to saying that each ciphertext digit is ...
In cryptography, confusion and diffusion are two properties of a secure cipher identified by Claude Shannon in his 1945 classified report A Mathematical Theory of Cryptography. [1] These properties, when present, work together to thwart the application of statistics , and other methods of cryptanalysis .
The first mention of Alice and Bob in the context of cryptography was in Rivest, Shamir, and Adleman's 1978 article "A method for obtaining digital signatures and public-key cryptosystems." [ 2 ] They wrote, "For our scenarios we suppose that A and B (also known as Alice and Bob) are two users of a public-key cryptosystem".
One of the most important issues for any cryptographic primitive is the security of the system. However, in numerous cases, chaos-based cryptography algorithms are proved insecure. [5] [8] [9] [10] The main issue in many of the cryptanalyzed algorithms is the inadequacy of the chaotic maps implemented in the system. [11] [12]
The Handbook of Applied Cryptography — standard academic cryptography reference, available for download in PDF form (for free). A Graduate Course in Applied Cryptography - book on modern provably secure cryptography; RSA Laboratories' FAQ About today's cryptography; Savard's glossary; Ritter's Crypto Glossary and Dictionary of Technical ...
J. Seberry, J. Pieprzyk- Cryptography: an introduction to computer security; Simon Singh - The Code Book (UK author) A. Sinkov - Elementary Cryptanalysis: A Mathematical Approach (not modern) William Stallings - Cryptography and Network Security; Samuel S. Wagstaff - Cryptanalysis of Number Theoretic Ciphers
He uses all this information to predict the nature of communication. All incoming and outgoing traffic of the network is analyzed, but not altered. For a release of message content, a telephonic conversation, an E-mail message or a transferred file may contain confidential data. A passive attack monitors the contents of the transmitted data.