A concise history of the British safe and safe-cracking.
Learn to Safecrack! [pdf] Last year, computer scientist and cryptologist Matt Blaze drew ire from the locksmithing community for publically revealing information on how to create the master key to a lock (previous MetaFilter discussion). He's back with a paper on cracking safes. Once again, locksmiths are up in arms over Blaze's disregard of trade secrets. Apparently, safes adhere to the principle of security through obscurity rather than Kerckhoff's Law. [via]