25 March 2011 0 Comments

Misbehaving HTTPS Servers impair TLS 1.1 and TLS 1.2

Back in the summer of 2009, I blogged about Windows 7’s new support for TLS 1.1 and TLS 1.2 . These new protocols are disabled by default, but can be enabled using Group Policy or the Advanced Tab of the Internet Control Panel: Some adventurous Internet Explorer users have found that if they enable these new protocols, some secure sites will fail to load: Upon encountering an error like this, a user might try to see what’s going wrong by enabling Fiddler’s HTTPS Decryption feature and re-visiting the site. When they do that, they find that the site starts working correctly.

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Misbehaving HTTPS Servers impair TLS 1.1 and TLS 1.2

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