Patent ID: 7502941
Filing Date: 2009-03-10
Classification: G06F,H04L,H04W

Abstract:
1. A wireless terminal comprising: a transceiver for downloading an encrypted software program and a government authorizing agency's digital signature, the government authorizing agency's digital signature including a hash value calculated for the software program; and a tamper-resistant package comprising: a reconfigurable logic device which can be reconfigured by loading the software program; a memory storing a terminal secret key unique to the wireless terminal and a government public key corresponding to the government authorizing agency; and a security check device for decrypting the software program with the secret key, and determining whether the government authorizing agency has authorized the software program for use by the wireless communication apparatus, wherein the security check device determines whether the software program has been authorized by the government authorizing agency by calculating a hash value of the decrypted software program, decrypting the digital signature with the government public key, and comparing the hash value included in the government authorizing agency's digital signature with the hash value calculated by the security check device.