| Cookies Secure Sockets Layer The Digital ID System Cookies When adding items to your shopping basket (and for account customers personalising your site) the information is stored in a cookie - this is saved as a text file on your computer ('yourname@www_NBG_co.txt' in Internet Explorer, line www.foursys.co.uk in 'cookies.txt' in Netscape) that can only contain text information. This is not an executable file, and so cannot contain a virus or any harmful files. For account customers, using the 'Auto Login' feature stores your password
in this cookie - this feature should not be used (or turned off after use) if
you think access to your computer is not secure. Once you are in the secure site, you will have a locked yellow padlock (or
complete key) to show you that you are viewing a secure web site. Double clicking
on this padlock will show you our certificate information. How Do Digital IDs Work? One widely-used tool for privacy protection is what cryptographers call a "secret key." Log-on passwords and cash card PINs are examples of secret keys. Consumers share these secret keys only with the parties they want to communicate with, such as an on-line subscription service or a bank. Private information is then encrypted with this secret key, and it can only be decrypted by one of the parties holding that same key. Despite its widespread use, this secret-key system has some serious limitations. As network communications proliferate, it becomes very cumbersome for users to create and remember different passwords for each situation. Moreover, the sharing of a secret key involves inherent risks. In the process of transmitting a password, it can fall into the wrong hands. Or one of the sharing parties might use it maliciously and then deny all action. Digital ID technology addresses these issues because it does not rely on the sharing of secret keys. Rather than using the same key to both encrypt and decrypt data, a Digital ID uses a matched pair of keys which are unique complements to one another. In other words, what is done by one key can only be undone by the other key in the pair. In this type of key-pair system, your "private key" gets installed on your server and can only be accessed by you. Your "public key" gets widely distributed as part of a Digital ID. Customers or correspondents who want to communicate with you privately can use the public key in your Digital ID to encrypt information, and you are then the only one who can decrypt that information. Since the public key alone does not provide access to communications, you do not need to worry about who gets hold of this key. Your Digital ID tells customers and correspondents that your public key in
fact belongs to you. Your ID contains your name and identifying information,
your public key, and VeriSign´s own digital signature as certification. How Do Secure Server IDs Work? With the latest SSL and a Secure Server Digital ID, your Web site will support
the following functions:
The diagram below illustrates the process that guarantees protected communications between a Web server and a client. All exchanges of Digital IDs happen within a matter of seconds and appear seamless to the client.
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