Matthew Green wrote a post on this a while ago, but I'm not sure it addresses the question: http://blog.cryptographyengineering.com/2013/05/a-few-thoughts-on-c

Matthew Green wrote a post on this a while ago, but I'm not sure it addresses the question: http://blog.cryptographyengineering.com/2013/05/a-few-thoughts-on-cellular-encryption.html http://blog.cryptographyengineering.com/2013/05/a-few-though...