1) Recently, group signatures, blind signatures and their combination result called group blind signatures which have been widely used in political area, military area and commerce area have been becoming the hot topics of modern cryptographic technology.
Based on two typical modern encryption (3DES algorithm and RSA algorithm), this paper proposes the encryption algorithm(3DES-RSA) which combines 3DES algorithm and RSA algorithm, thus the whole performance of the encrypted system gets improvement.
The information security technique will gradually acta highly anticipated role in the development of the network technology. Because thecore of the modern encryption technique is encryption algorithm, so the special chipfor encryption algorithm is the most important part in the information securitytechnique.
Finally, this system adopts present popular Java as developing language to implement data exchange pattern among modules with encryption algorithm, digital signature and digital certificate of modern encryption technology. So this system can be exchange data fast and securely.
In allusion to numerous excellences of USB, this paper provides a implementing scheme of hardware encryption device based on USB interface, and design a USB Cipher Card with high flexibility and strong security by integrating cryptogram technology and FPGA technology.