October 2015
Intermediate to advanced
392 pages
8h 52m
English
This chapter introduces the key concepts in implementing block ciphers such as the data encryption standard (DES). A stream cipher operates on a digital data stream one or more bits at a time. A block cipher operates on complete blocks of data at any one time and produces a ciphertext block of equal size. DES, in common with other block ciphers is based around a structure called a Feistel Lattice so it is useful to describe how this works.
Keywords
Block ciphers
Secure systems
DES
The data encryption standard (DES) is a symmetric block cipher. A stream cipher operates on a digital data stream one or more bits at a time. A block cipher operates on complete blocks of data ...
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