The new certificate's Private Key has been downgraded to 2048 bit RSA

Apr 17, 2012 08:15 GMT  ·  By

UK’s MI5 Security Service forgot to renew its official website’s SSL digital certificate that expired on April 16. As a result, users who tried to access the site were met with a warning that flagged the site as being untrusted.

SpyBlog informs that the agency’s site redirects to a HTTPS connection only, which means that by failing to renew the certificate, they created the equivalent of a denial-of-service attack launched against themselves.

Curiously, the new certificate is dated March 25, 2012, and its Private Key has been downgraded from the 4096 bit RSA to a 2048 bit RSA.

While these types of mistakes seem minor, a security company's reputation can suffer dearly because of them.

The new SSL certificate is valid until 2018, when hopefully someone will remember to take appropriate action.

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