Patent ID: 8271787
Filing Date: 2012-09-18
Classification: H04L,H04W

Abstract:
1. A method for identification of a physical unit (M) in an open, wireless telecommunications network by means of a testing device (P), having the following steps: a) storing a secret identity (SIMEI) and an open identity (IMEI) in memory in the physical unit (M); b) generating a first parameter (CHv) in the testing device (P); c) sending an identity request (IR) with the first parameter (CHv) from the testing device (P) to the physical unit (M); d) generating an electronic signature (SIGt) by means of a first cryptographic function (F e) generating the secret identity (SIMEI) from an open key (EMIGK) and from the sent open identity (IMEI) in the testing device (P); f) generating a corresponding electronic signature (SIGv) by means of the first cryptographic function (F g) identifying the physical unit (M) by a comparison of the electronic signature (SIGt) sent and the corresponding electronic signature (SIGv) in the generated testing device (P).