Patent ID: 7979703
Filing Date: 2011-07-12
Classification: H04L

Abstract:
1. A method in a computer system of a recipient for processing communications based on reputation of senders, the method comprising: receiving from a sender an initial communication addressed to the recipient, the initial communication including a public key of a private and public key pair; verifying whether the initial communication was signed by the private key corresponding to the public key without verifying via a public key infrastructure whether the public key is a registered public key of the sender; upon verifying that the initial communication was signed by the private key, receiving a subsequent communication addressed to the recipient, the subsequent communication including the public key; verifying whether the subsequent communication was signed by the private key corresponding to the public key without verifying via the public key infrastructure whether the public key is a registered public key of the sender; and upon verifying that the subsequent communication was signed by the private key,