Is It Really Safe to Order Online?

by Dr. Ralph F. Wilson
Web Commerce Today, Issue 3, October 15, 1997
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This is a page we developed for a client. We hereby grant permission for subscribers to Web Commerce Today to use the text for Web sites built for their own organization. Use in websites developed for other organizations requires special permission and a copyright use fee. We cannot recommend using corporate logos.

Note that this statement has two sections, the first for customer-to-website communications, the second for website-to-merchant communications. If you use a secure Web browser rather than PGP for website to merchant communications, do not include the second section.

Netscape logo Microsoft Internet Explorer logo
Both Netscape and Microsoft Internet Explorer Web browsers support Secure Sockets Layer (SSL) encryption technology, based on RSA public key cryptology.

RSA logo
Encryption software from RSA Data Security is incorporated in the Netscape Navigator Web browser.

VeriSign logo
Our digital certificate is authenticated and issued by the VeriSign Corporation. It must be reverified every six months.

We offer the highest level of commercial Internet security available.

Security when you place your order

If you have a Netscape or Microsoft Internet Explorer Web browser, you have a high quality built-in encryption system when used with our SSL (Secure Sockets Layer) Web server.

This encryption system is so good that the U.S. Government has limited its export to certain countries. Netscape, for example, says:

"Because of export restrictions, Netscape Navigator is limited to a 40-bit key size for the RC4 stream encryption algorithm (the encryption algorithm used by Netscape Navigator's implementation of SSL). A message encrypted with 40-bit RC4 will take on average 64 MIPS-years to break (a 64-MIPS computer will need a year of dedicated processor time to break the message's encryption). This is not military-grade security, but the effort required to break any given 'https' data exchange is definitely nontrivial."

This encryption system is based on the invention of the RSA Public Key Cryptosystem in 1977 by Ronald Rivest, Adi Shamir, and Len Adleman, a trio professors at the Massachusetts Institute of Technology. When you are in "secure" mode, any forms you fill out with personal or credit card information are securely encrypted from your desktop to the "Web server computer" which hosts the merchant's order form Web page on the Internet.

PGP logo PGPTM developed by Philip Zimmermann, employs some of the strongest unclassified encryption technology available to provide complete privacy for your transaction.

US Seal
PGP cryptography is so good, it is export restricted by the US Department of State and licensed for use only in the United States and Canada.

Security when your order is transmitted to the merchant

But that's not all. From the "Web server computer" the messsage is transmitted to the merchant's desktop computer to be processed. That transmission is also encrypted using the RSA Public Key Cryptosystem incorporated into PGP.

It is encoded when it is sent, and can only be decoded by the merchant who owns the store.

Though there is only a very slight risk that these messages might be intercepted in transit by some cyber hacker, even if he got the message he couldn't do anything with it. The cryptography is so good that it would take many days of hard work to break the code, even by the best cryptographers. Your credit data is really safe with us. Please feel confident. We have spared no expense to incorporate the very finest commercial security systems available.

PGP and Pretty Good Privacy are trademarks of Pretty Good Privacy. RSA is a trademark of RSA Data Security. Internet Explorer is a trademark of the Microsoft Corporation. VeriSign is a trademark of the VeriSign Corporation. Text is © 1996-1997 by Ralph F. Wilson, and may not be reprinted or transmitted in electronic form without explicit written permission.


You may read other articles from this issue
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