Patent ID: 8520847
Filing Date: 2013-08-27
Classification: H04L

Abstract:
1. A method of one member of a first entity generating an intra-entity public key, said first entity having a plurality of members and one or more electronic processors for performing cryptographic operations, said one member having a long-term private key and a corresponding long-term public key, said method comprising: generating, by at least one of said one or more electronic processors, a short-term private key and a corresponding short-term public key; computing, by at least one of said one or more electronic processors, an intra-entity shared key by mathematically combining said short-term public key of said one member and respective short-term public keys of each other member of said first entity; computing, by at least one of said one or more electronic processors, said intra-entity public key by mathematically combining said short-term private key, said long-term private key and said intra-entity shared key, said intra-entity public key for combining with respective intra-entity public keys of said each other member of said first entity to derive a group public key.