What is SGC?
“Server Gated Cryptography” (“SGC”) was developed for legacy computers and browsers that only support 40 or 56-bit SSL encryption to “step up” to 128-bit SSL encryption. Without an SGC certificate, Web browsers and operating systems that do not support 128-bit strong encryption will receive only 40- or 56-bit encryption.
SGC is Server Gated Cryptography. It provides the ability for a certificate to ‘up-rate’ older browsers that are only capable of weak, 40 bit encryption to ultra-secure 128/256 bit encryption without the need to upgrade. It was introduced at a time when stringent US encryption export laws would only allow browsers to encrypt 40 bit levels. Understandably, there are a significant number of internet users that still use these older browsers.
SGC is Server Gated Cryptography. This does have the ability to up rate a weak browser to a stronger (128bit) browser without the need to upgrade. It was introduced at a time that the US encryption export laws were stringent. SGC Certificates rely on the webserver software being able to handle SGC. Comodo does not at this time issue SGC certificates.
