Patent ID: 7953225
Filing Date: 2011-05-31
Classification: G06F,H04L

Abstract:
1. A mobile wireless communications device comprising: a housing; an antenna carried by said housing; a wireless transceiver carried by said housing and connected to said antenna; at least one memory for storing a compressed radio frequency (RF) waveform software file, a first digest of an uncompressed version of the RF waveform software file, and a digital signature of the compressed RF waveform software file and the first digest, the digital signature being generated based upon a private key; and a processor carried by said housing and cooperating with said wireless transceiver for performing wireless communications, said processor also cooperating with said at least one memory for authenticating the compressed RF waveform software file based upon the digital signature and a public key corresponding to the private key, upon authentication, uncompressing the compressed RF waveform software file, generating a second digest based upon the uncompressed RF waveform software file, and re-authenticating the uncompressed RF waveform software file at pseudo-random times after installation based upon comparing the first digest with the second digest.