Tag Archives: Cryptography

DigiNotar Breach Notes

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… Read More »

Whatever Happened to Geo-encryption?

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… Read More »

Hang On, I’m Just Calling My Getaway Car

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… Read More »