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Monday, September 7, 2009

Users can automatically encrypt Gmail connection

Gmail now can be set to encrypt communications between a browser and Google's servers by default, an option that makes the e-mail service harder to snoop on but also potentially slower.

Users already could encrypt communications with Gmail servers (by going to, but on Thursday, the company added an option to use that encrypted connection automatically.

"Your computer has to do extra work to decrypt all that data, and encrypted data doesn't travel across the Internet as efficiently as unencrypted data," Gmail engineer Ariel Rideout said in a blog post Thursday. "That's why we leave the choice up to you."

The encryption comes through use of HTTPS, a secure version of the HTTP protocol that governs how Web browsers fetch information from servers. It's not simple to snoop on somebody else's network traffic, but it can be done when the communications aren't encrypted.

HTTPS encrypts communications only between the browser and Gmail's servers. It's not like PGP (nee Pretty Good Privacy) or GPG (GNU Privacy Guard) software that encrypts e-mail all the way from source to destination.

The Gmail login process is always encrypted.

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