I have lost the ability to edit this post. I wanted to share some more information. All of these patents contains key escrow capabilities, which is defined by t

I have lost the ability to edit this post. I wanted to share some more information. All of these patents contains key escrow capabilities, which is defined by the US patent system as "Subject matter wherein the key is deposited or retrieved to or from a third party." There are circumstances where this is not being used to give access to law enforcement, or the patent would not make sense in that context. This is a last defense argument. Certainly it is the case for some escrow systems, and (especially with the patentese) are difficult to decipher. But others are clear as day: "In order to receive the information, law enforcement may submit a request to each of the entities identifying the communication session and their basis for authorization." Only some of the documents provided above have been read through by yours truly. They constitute only a minor fraction of patents by a minor fractions of companies in the US patent system. Verisign? [1] [1] https://www.google.com/patents/US6931133 https://www.google.com/patents/US6931133