Patent ID: 7526090

Claim:
A method for securing radio transmissions utilizing a conventional radio, said method comprising the steps of: providing a conventional radio, said conventional radio being incapable of encrypting or decrypting signals, said radio including a conventional microphone port that is configured to be coupled to a conventional microphone and a conventional speaker port that is configured to be coupled to a conventional speaker, said radio remaining unmodified; providing a computer system coupled between a microphone and said radio, wherein inputs into said radio are received first by said computer system, said computer system being separate and apart from said radio; receiving, within said computer system, an input analog signal from said microphone; encrypting, within said computer system, said input analog signal utilizing public key encryption to form an encrypted voice file; passing said encrypted voice file from said computer system to said microphone port that is included within said unmodified radio; and transmitting said encrypted voice file utilizing said unmodified radio, wherein radio transmissions from said radio are secured.