An Involution Permutation Based on MA-Structure In IDEA;

As a well-known encryption algorithm, IDEA is widely used in many fields, such as PGP.

The system of this research is based on algorithm IDEA and RC5.

In this paper,Firstly,IDEA algorithm is analyzed and studied thoroughly,on the basis of this,expounding the principle and process of encryption algorithm and decryption algorithm,the encryption process of IDEA encryption algorithm is described in details especially.

In this paper, randomness evaluation of cryptography is studied and block cipher is selected as a research instance.

Cryptography is the crucial technique in the information security field, so research on it becomes even more important and exigent.

Design Of The Communication Cryptography Platform Based On Embedded Chip;

The principles of cryptographic algorithm are analysed , and the plan of solving tampering problem of applied program with digital signature is proposed in detail.

In the paper we analyze the some reason of error implement for cryptographic algorithm,give a several of cryptanalysis example based on error implement of cryptographic algorithm?We conclude the paper with various methods for preventing these attacks.

The fractal theory and its application in cryptology is discussed,and a novel fractal cryptographic algorithm is given.