Patent ID: 7366905
Filing Date: 2008-04-29
Classification: H04L,H04W

Abstract:
1. A method comprising: having an identity authenticated in a first system; a second system causing a key to be generated for use in the second system; the second system generating a certificate for the key; and establishing the identity of a user in the second system by signing the certificate for the key using the authenticated identity of the user in the first system, wherein the certificate for the key for use in the second system contains usage limitations, including a temporal limit on usage, wherein the temporal limit requires that once a secure socket layer session on the second system is completed, the certificate or a corresponding key is destroyed, wherein said usage limitations also include a limit on use of said key for encryption only, which excludes use of said key for signature verification; and wherein the first system is a wireless communication system and wherein the second system is a computer connected to an Internet.