Analyses of electronic commerce security

This paper mainly argues the secure problem of electronic commerce. Security is the life of electronic commerce. Aiming at the architecture of electronic commerce, this paper adopts the method of 'from top to bottom', concentrates on analyzing the SET(Secure Electronic Transaction), which is becoming a more and more important standards as a part of web commerce. First, the protocol flow of SET and the main technology which the SET is based on, such as digital signature, double digital signature, and digital envelope are introduced. Because these technologies are based on two kinds of password systems (Asymmetric Encryption and Symmetric Encryption), the security of asymmetric encryption and symmetric encryption is analyzed through DES (Data Encryption Standard) and RSA (Rivest-Shamir-Privcy) which are the most popular asymmetric encryption and symmetric encryption systems. Then the security of digital signature is analyzed. Finally, the paper analyzes the security ability of SET and the privacy blabbing problem caused by digital signature technology.