Block Cipher and Non-linear Shift Register Based Random Number Generator Quality Analysis
نویسنده
چکیده
منابع مشابه
6 X 6 Playfair Cipher using LFSR based Unique Random Number Generator
layfair cipher is the well-known multiple letter encryption cipher. Here the digraphs in the plaintext are treated as single units and converted into corresponding cipher text digraphs. However because of the drawbacks inherent in the 5 X 5 Playfair cipher which adversely affects the security we proposed a 6 X 6 Playfair cipher and then coupled it with Linear Feedback Shift Register based Uniqu...
متن کاملKeystream Generator with Provable Security How to create a indistinguishable PRSG
Introduction Pseudo-random sequence have been widely used in communication and cryptology. Any (pseudo-) random sequence used in practical system is generated by a machine, a computer or a device, those devices are called (pseudo-) random sequence generator, or PRSG PRSG may be linear feedback shift register, finite automata or some feedback mode using block cipher. Content of this slide what i...
متن کاملCryptanalysis of LFSR-based Pseudorandom Generators - a Survey
Pseudorandom generators based on linear feedback shift registers (LFSR) are a traditional building block for cryptographic stream ciphers. In this report, we review the general idea for such generators, as well as the most important techniques of cryptanalysis.
متن کاملFuzzy Logic-Based Security Evaluation of Stream Cipher
The main aim of this chapter is to provide a security evaluation method based on fuzzy logic “for a pseudo-random sequences used (mainly) in stream cipher systems. The designed Fuzzy rules consider two main parameters, which are the length of the maximum period of the key sequence obtained from Linear Feedback Shift Register (LFSR) and the entropy of the result in sequences obtained from differ...
متن کاملInvestigation of FCSR-based Pseudorandom Sequence Generators for Stream Ciphers
In this paper, feedback with carry shift registers (FCSRs) are analyzed with main focus on the general case of FCSRs with arbitrary connection integer and on maximum-period FCSRs. Moreover, a keystream generator that employs the structure of the linear feedback shift register (LFSR)-based Geffegenerator is studied in connection with FCSRs as a special nonlinear combining generator. The consider...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015