Definition

For many signal processing applications programmability and efficiency is desired. With current technology either programmability or efficiency is achievable, not both. Conventionally ASIC's are being used where highly efficient systems are desired. The problem with ASIC is that once programmed it cannot be enhanced or changed, we have to get a new ASIC for each modification. Other option is microprocessor based or dsp based applications. These can provide either programmability or efficiency. Now with stream processors we can ach ....etc

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Stream Ciphers
• Generate a pseudo-random key stream &
xor to the plaintext.
• Key: The seed of the PRNG
• Traditional PRNGs (e.g. those used for simulations) are not secure.
E.g., the linear congruential generator:
Xi = a Xi-1 + b mod m
for some fixed a, b, m.
It passes the randomness tests, but it is predictible.
Linear Feedback Shift Registers
Feedback shift register:
(“register”, “feedback”, “shift”)
LFSR: Feedback fnc. is linear over Z2 (i.e., an xor):
Very compact & effici ....etc

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Block Ciphers - Analysis, Design and Applications




Abstract
In this thesis we study cryptanalysis, applications and design of secret key
block ciphers. In particular, the important class of Feistel ciphers is studied,
which has a number of rounds, where in each round one applies a cryptographically
weak function.

Applications
The main application of block ciphers is that of encryption. We study the
available modes of operat ....etc

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i want a project with full description of all the principles of managements  plus an example of a big firm who is undertaking some of the principles 

kindly,
SEND ME THE CONTENT FOR THE SAME 

THANKING YOU
YOUR TRULY 
AYUSH
(STUDENT) ....etc

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Definition
For many signal processing applications programmability and efficiency is desired. With current technology either programmability or efficiency is achievable, not both. Conventionally ASIC's are being used where highly efficient systems are desired. The problem with ASIC is that once programmed it cannot be enhanced or changed, we have to get a new ASIC for each modification. Other option is microprocessor based or dsp based applications. These can provide either programmability or efficiency. Now with stream processors we can achie ....etc

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hello
i'm looking for SVM-PSO matlab code for classification. ....etc

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There is an increasing need for internetworking between telephone and computer networks. Applications such as Voice over IP (VoIP) and the deployment of the 3rd Generation mobile telephony networks, make this integration a necessity. The Signaling Transport (SIGTRAN) working group of the Internet Engineering Task Force (IETF) is the one in charge of the design of the standards needed to make this internetworking possible. The primary purpose of this working group is addressing the transport of packet-based Public Switched Telephone Networks (PS ....etc

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Stream Processor

For many signal processing applications programmability and efficiency is desired. With current technology either programmability or efficiency is achievable, not both. Conventionally ASIC's are being used where highly efficient systems are desired. The problem with ASIC is that once programmed it cannot be enhanced or changed, we have to get a new ASIC for each modification. Other option is microprocessor based or dsp based applications. These can provide either programmability or ....etc

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thanx and can you help me about stream cipher filterition and combation
please

....etc

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Abstract
Encryption algorithms can be used to help secure wireless communications, but securing data also consumes resources. The goal of this research is to provide users or system developers of personal digital assistants and applications with the associated time and energy costs of using specific encryption algorithms. Four block ciphers (RC2, Blowfish, XTEA, and AES) were considered. The experiments included encryption and decryption tasks with different cipher and file size combinations. The resource impact of the block ciphers w ....etc

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