A new algorithm based on DES and ECC for CSCW

CSCW (computer supported cooperative work) means a group of people cooperate to finish the same task with the help of computers. Under such a working environment, a safety mechanism is vital important to ensure unwanted information leakage. At present the encryption algorithms widely used in CSCW system are inefficient, and can´t realize the real-time communication model satisfactorily. DES and ECC are both widely recognized data encryption algorithms, which have already been applied to CSCW security system, but each has his own strengths and weaknesses. DES is efficient but its key is easily revealed; the key of ECC is well managed, but the process efficiency is lower than DES. This paper puts forward a combined encryption algorithm based on 3DES and ECC to improve the performance of the CSCW system encryption. It is proved that the algorithm is feasible and effective.