SSL certificates and SHA algorithms

This post describes a significant change in the way Web browsers recognize certain kinds of SSL certificates. We’re making sure that all SSL certificates bought from us are compatible with this change, and most customers can ignore the rest of this post, which has technical details.

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Our SSL servers support “perfect forward secrecy”

If your site uses an SSL certificate from us, our servers now provide an important feature called perfect forward secrecy.

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Our servers are not vulnerable to the “Heartbleed” SSL security bug

Yesterday, Internet security researchers announced discovery of the Heartbleed SSL security bug. This bug allows attackers to bypass SSL encryption on servers that use certain versions of software called “OpenSSL”.

Our servers are not, and never have been, vulnerable to this bug, because we’ve never used the affected versions of the OpenSSL software. Our customers are not affected by it in any way.

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Old e-mail programs with expired SSL certificates

Some customers using very old e-mail programs (such as Microsoft Entourage and Netscape Mail) have complained that their programs have started showing a warning that the “Certificate Authority Is Expired” or “Unable to establish a secure connection”. These old e-mail programs have certificates for common “root certificate authorities” built into them, with expiration dates that have now passed. There is no way to update the root certificates which are built into these old programs, unfortunately, so these e-mail programs will always complain that the root certificates are expired and thus no longer valid. This is not a problem with our e-mail servers, but instead is a problem with the old e-mail programs — they were never expected to be used this long.

If this is happening to you, there are three possible actions.

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TLS now supported with FTP

Our FTP servers now support TLS/SSL encryption of FTP passwords, adding more security to FTP.

Confusingly, there are a variety of different SSL/TLS encryption schemes for FTP offered by various FTP clients. The one we support is the most widespread, known as “explicit TLS encryption” of the FTP command channel. It’s defined in RFC 4217.

Encryption is supported by many popular FTP clients, including the FileZilla FTP client. (The quickest way to use it in FileZilla is to put ftpes://ftp.tigertech.net in the QuickConnect “Host” box, then accept the “Unknown certificate”.)

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Get an SSL certificate to guard against FireSheep

A recently published Firefox add-in named “Firesheep” can be used by “hackers” to easily hijack the connection of any nearby WiFi users visiting many popular Web sites such as Facebook, Twitter, or Hotmail. This vulnerability is a basic artifact of the way the Internet works. In order to prevent this problem, these sites will need to properly implement SSL (https) security.

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Wildcard SSL certificates now available

Back in May, we posted that we now offer basic SSL certificates for just $19.00 a year, allowing you to protect your Web site without going broke.

Today, we’ve added another option: you can optionally choose a “wildcard” AlphaSSL certificate instead for just $49.00 a year.

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Blocking improper SSL connections

Even if a Web site hosted with us doesn’t have an SSL certificate, our servers used to accept improper secure SSL connection attempts that start with “https://” instead of “http://” in the beginning of the URL (note the extra “s”). We’re changing that.

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Protect your WordPress login

Do you login to your WordPress blog securely? Are your username and password encrypted so that “hackers” can’t steal them and then break into your blog? (Probably not!)

By default, each WordPress blog is configured to send the login username and password as plain (unencrypted) text. If a hacker can see what you are sending during your login, they can easily steal your username and password. This can happen if you have a virus installed on your computer. It can also happen if your computer is virus-free but connects via WiFi. If your main computer uses a wireless connection, or if you or other users of your blog ever login with their laptops — blogging from a coffee shop, anyone? — remember that these connections can be insecure, and could be susceptible to revealing your password.

You can protect your blog by installing an “SSL certificate” and configuring WordPress to require secure logins. Your browser will then encrypt your username and password so that no one can intercept them.

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SSL certificate price drop from $99 to $19

We’re pleased to announce that we’ve dramatically lowered our price on SSL certificates — they’re now just $19.00.

What’s an SSL certificate? It activates the “padlock” icon for your site in a Web browser, showing that the connection is encrypted for security. You should use an SSL certificate if your visitors type sensitive data such as usernames, passwords or credit card numbers, because it ensures that “hackers” can’t intercept that data.

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