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symmetric-key block cipher

A Symmetric Key Block Cipher to Provide Confidentiality in Wireless Sensor Networks

A Symmetric Key Block Cipher to Provide Confidentiality in Wireless Sensor Networks

... and key sensitivity test are the ways of ensuring diffusion and confusion provided by an ...plaintext, key pairs and we encrypt it using the proposed approach, to generate ...or key by keeping the ...

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Title: Symmetric Key Cryptography: Current Trends

Title: Symmetric Key Cryptography: Current Trends

... a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 ...earlier block cipher ...Twofish cipher has not been patented and the ...

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A Critical Analysis of Some Symmetric Key Block          Cipher Algorithms

A Critical Analysis of Some Symmetric Key Block Cipher Algorithms

... the key aspect while transmitting confidential information over insecure network like ...the symmetric key block cipher algorithms DES, 3DES, AES, IDEA, Blowfish and RC2 is ...

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REMOVING IPV6 SECURITY USING HYBRID ALGORITHM

REMOVING IPV6 SECURITY USING HYBRID ALGORITHM

... of key-dependent permutation and a key and data- dependent ...variable-length key, 64-bit block ...a key-expansion part and a data- encryption part. Key expansion converts a ...

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Block Cipher Symmetric Key Based Encryption Algorithm
                 

Block Cipher Symmetric Key Based Encryption Algorithm  

... a key. A key is a small or large string of characters that allows a sender to encode the ...this key allows the receiver to decode messages sent to him or ...Caesar cipher, mono-alphabetic ...

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A Novel Block Cipher Involving a Key Bunch Matrix

A Novel Block Cipher Involving a Key Bunch Matrix

... a key in each round of the iteration process, the plaintext has undergone several transformations, and has resulted in a ciphertext that cannot be deciphered in any ...interesting cipher that has some ...

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Performance Comparison of AES, Blowfish and Sattolo’s Techniques for Video Encryption

Performance Comparison of AES, Blowfish and Sattolo’s Techniques for Video Encryption

... into Symmetric (private) and Asymmetric (public) keys encryption. In Symmetric key encryption or secret key encryption, only a single key is used to encrypt and decrypt ...The ...

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An Approach to Improve the Security of Online 
                      System using Crypto System

An Approach to Improve the Security of Online System using Crypto System

... cumulative key of size 112-168 bits. If we consider a triple length key to consist of three 56-bit keys K1, K2, K3 then encryption is as following order :- encryption with K1, decryption with K2, encryption ...

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Efficient VLSI Architecture for Modified Blowfish Algorithm for Military Applications

Efficient VLSI Architecture for Modified Blowfish Algorithm for Military Applications

... A key of 32-bits ...the key and the output value obtained is (a182adc8) given to the F function where the s-boxes undergoes XOR and MOD operations and the s-box output is (ffffffff) now XORed with the ...

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Propose Key Generation Framework for Block Cipher Algorithm

Propose Key Generation Framework for Block Cipher Algorithm

... for Block Cipher algorithms so we must avoid weak keys ...many block ciphers there are some keys that should be avoided, because of reduced cipher complexity; these keys are such that the same ...

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Multi Core Processor Arrays Cores Optimization in AES Engines

Multi Core Processor Arrays Cores Optimization in AES Engines

... a symmetric block cipher that can encrypt, (encipher), and decrypt, (decipher), ...called cipher-text. Decryption of the cipher-text converts the data back into its original form, which ...

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An Improved 3d Playfair Cipher Key Matrix With Dual Cipher Block Chaining Method

An Improved 3d Playfair Cipher Key Matrix With Dual Cipher Block Chaining Method

... Playfair cipher is an example of a classical-symmetric encryption scheme and one of the best-known early block ciphers that use substitution ...Playfair cipher model is energy-efficient and ...

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A Generalized Key Scheme in a Block Cipher Algorithm and its Cryptanalysis

A Generalized Key Scheme in a Block Cipher Algorithm and its Cryptanalysis

... stream cipher was suggested by Ismail et al [5] where they used two chaotic logistic maps to confuse the relationship between the cipher image and the plain image with an external secret key of ...

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High Speed Aes S-Box/Inv S-Box Design With S.R And M.C Technique

High Speed Aes S-Box/Inv S-Box Design With S.R And M.C Technique

... [8] L. Q. Min, and G. R. Chen, "A novel stream encryption scheme with avalanche effect," The European Physical Journal B, vol.86, no. 459, pp. 1-13, Nov. 2013. [9] A. Dandalis, V. K. Prasanna, J. D. P. Rolim, ...

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A New and Novel Study of Comparison on Cryptographic Algorithms using  AES, DES and RSA for Network Security

A New and Novel Study of Comparison on Cryptographic Algorithms using AES, DES and RSA for Network Security

... and key length of 128, 192, and 256 ...final cipher- text or to retrieve the original plain-text ...the cipher begins with an Add Round Key ...

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A 64 bits Dynamically Key Controlled Symmetric Cipher (KAMFEE X64)

A 64 bits Dynamically Key Controlled Symmetric Cipher (KAMFEE X64)

... and key dependency back-to-back with rotor to achieve the requested goals of like-perfect-statistics, large period, and resistance to linear and differential ...

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Three-Pass Protocol Implementation in Vigenere Cipher Classic Cryptography Algorithm with Keystream Generator Modification

Three-Pass Protocol Implementation in Vigenere Cipher Classic Cryptography Algorithm with Keystream Generator Modification

... Vigenere Cipher can also be applied to the method of Three-Pass protocol, so although Vigenere Cipher included into the algorithm symmetric key, the sender of the message does not have to send ...

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Design and Implement Dynamic Key Generation to Enhance DES Algorithm

Design and Implement Dynamic Key Generation to Enhance DES Algorithm

... and key used for ...to cipher text (unreadable) and decryption is the process of converting cipher text (unreadable) to plain text(readable) as shown in figure ...

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Implementation of Advanced Encryption Standard (AES) Algorithm on FPGA

Implementation of Advanced Encryption Standard (AES) Algorithm on FPGA

... or symmetric key algorithms involve only one key for encryption and decryption is more suitable for faster ...asymmetric key algorithms involve two keys, one for encryption and other for ...

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Proposed Model of Block Based Symmetric Cipher

Proposed Model of Block Based Symmetric Cipher

... on block cipher that divides data into blocks of equal length and then encrypts each block using a special mathematical set of functions known as ...uses symmetric key technique for ...

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