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SGC: True 128-Bit SSL Encryptiony
The most powerful SSL encryption commercially available today.

Server-Gated Cryptography (SGC) Certificates enable 128- or 256-bit SSL encryption (depending on the Web browser, operating system, and host server), the most powerful SSL encryption commercially available today.

You need the strongest SSL encryption available, when...

Over a Trillion Times a Trillion Times Stronger
When an SSL handshake occurs between a client and server, a level of encryption is determined by the Web browser, the client computer operating system, and the SSL Certificate. Strong encryption, at 128 bits, can calculate 288 times as many combinations as 40-bit encryption. That's over a trillion times a trillion times stronger. At current computing speeds, a hacker with the time, tools, and motivation to attack using brute force would require a trillion years to break into a session protected by an SGC-enabled certificate.

256-bit SSL Encryption
The Advanced Encryption Standard (AES) enables 256-bit encryption, much stronger than 128-bit. If your server and your site visitor's browser support 256-bit encryption, then all VeriSign SSL Certificates will deliver this higher level of protection.

When Browsers Fail to Step Up to Strong Encryption
Even though an SSL Certificate is capable of 128-bit or 256-bit encryption, certain older browsers and operating systems still cannot connect at this level. Without an SGC certificate on the Web server, Web browsers and operating systems that do not support 128-bit strong encryption will receive only 40- or 56-bit encryption. Users with the following browser versions and operating systems will temporarily step-up to 128-bit SSL encryption if they visit a Web site with an SGC-enabled SSL Certificate:

(Internet Explorer browser versions prior to 3.02 and Netscape browser versions prior to 4.02 are not capable of 128-bit encryption with any SSL Certificate.)

Protect Customers with the Strongest Possible Encryption
Because Web site visitors cannot easily determine the encryption strength of a given session, they depend on the site owner to protect them. True 128-Bit SSL Certificates enable every site visitor to experience the strongest SSL encryption available to them. VeriSign is the leading SSL provider of SGC-enabled SSL Certificates, enabling 128- or 256-bit encryption to over 99.9% of Web site visitors.