Abstract: . . .  electronic commerce. E-commerce today, means the transactions done via the Internet .  One of the main differences between e-commerce and traditional commerce is personal information is needed during transactions. This information may include your name, address, phone number and even credit card information. Even if there are legal, procedural and technical means to protect privacy and ensure security, fears of internet security and privacy are still what hold many back from buying on the web . The threat of lost privacy is one of the main barriers to e-commerce. How Privacy is protected in E-commerce        Today as often as sophisticated threats intimidate senders and recipients of information, there are as many solutions. Secure Sockets Layer (SSL) and Public Key Infrastructures (PKI) are common techniques employed in protecting privacy . Secure Sockets Layer (SSL)        Originally developed by . . .
. . .  It should be kept and protected by the certificate owner. A public key is used to encrypt the message and validate a sender?s digital signature. In PKIs a trusted third party, or Certification Authority (CA) issues the certificate. The certificate contains the owner name, their e-mail address and public key, validity dates and expire dates for the certificate. When people sign transaction using their private key, the digital certificate is also sent with the message. Company Privacy and Privacy Management            An organisation wants its information private to prevent damage that may occur if the information is obtained by competitors and may affect the competitive position.  The information provider has to consider reputation and the misuse of information in the case of PLC?s could negatively influence stock value.  Individuals who provide information to government organizations can be negatively influenced by the misuse . . .
. . .  is dependent on security of user-entered password.         PGP employs the web of trust model where it computes trust levels for each public key in a key ring.  The users interpret trust levels for themselves, which opens up the issue of whether to use that particular key.  The trust levels for public keys are dependent on the number of signature keys and the trust level for these signatures.  It is worth noting that PGP is fine for small groups and out of band public key distribution.  However, the web of trust model has not fully taken off, as the web is sparsely populated and it is difficult to trust all unknown users. S/MIME        Secure Multipurpose Internet Mail Extension (S/MIME) is a security enhancement to the MIME Internet e-mail format standard, based on technology from RSA encryption.  It allows flexible client-to-client security through encryption and signatures.    . . .
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