Tag Archives: Cryptography

DigiNotar Breach Notes

By | September 6, 2011

Some folk have asked me for more details about the DigiNotar breach after my brief appearance on Al Jazeera this morning. So here are the notes I prepared for the segment. Links at the bottom. Background web security certificates are digital IDs issued by companies entrusted with making sure they are given to the right company or organisation.… Read More »

Foiling EMI

By | January 23, 2007

Further to my rant yesterday about digital rights management, my friend Mark tells me that getting around the Coldplay X&Y copy protection is easy — just rip it on a Mac. He’s right, at least for me: Works like a dream, after no joy at all on two ThinkPads. This may not be true with all copies of… Read More »

Whatever Happened to Geo-encryption?

By | December 7, 2006

Ok, not the question on the tip of your tongue, but bear with me. Geoencryption, or geo-encryption, boils down to: How about if you could only access data when you’re at a certain spot?  It’s not a new idea: the brains behind it, Dorothy Denning, a veteran of cryptology has been talking about it for at least a… Read More »

Hang On, I’m Just Calling My Getaway Car

By | August 6, 2006

A bank in Chicago has banned use of cellphones in five of its branches, hoping to prevent the bad guys from communicating with each other during a robbery, according to UPI: “We ban cell phone use in the lobby because you don’t know what people are doing,” Ralph Oster, a senior vice president [of the First National Bank],… Read More »