Titlebook: Introduction to Cryptography; Johannes A. Buchmann Textbook 20042nd edition Springer-Verlag New York 2004 access control.AES.computer scie

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Factoring,es. But it is not known whether the integer factoring problem is in fact difficult to solve. On the contrary, over the years many efficient integer factoring algorithms have been invented, and the number of digits required for secure RSA moduli has been increased from 512 to 1024 bits.

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Other Systems,s based on the hardness of integer factorization. The security of the ElGamal protocols and of DSA is based on the intractability of computing discrete logarithms in finite prime fields. However, none of those computational problems is provably intractable. Algorithmic progress has almost always bee

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Public-Key Infrastructures,eys, however, must be kept secret. Also, public keys must be protected from falsification and abuse. Therefore, appropriate . (PKI) must be set up. They are responsible for key distribution and management. In this chapter, we describe how such public-key infrastructures work.

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https://doi.org/10.1007/978-1-4419-9003-7access control; AES; computer science; cryptography; cryptology; DES; digital signature; encryption; hash fu

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