Method and apparatus for the secure storage of audio signals
AssigneeWalker Digital, LLC
InventorsJay S. Walker, Thomas M. Sparico, James A. Jorasch
Life of this patent
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Abstract
A method and apparatus for recording audio so that the recording can be authenticated as to both content and time of recording is provided. The system may be implemented as a central server that is accessed via one or more telephone lines, or as a stand-alone unit. The system operates by encrypting audio information, storing the encrypted information, and providing users with a cryptographic key that can be used to decrypt the stored information. Preferably, time stamps are embedded in the stored information. Digital signatures may be used to provide additional security.
Claims3
A process for recording audio communications, comprising:
- establishing an audio connection with a calling party;
- receiving an audio communication over the audio connection from the calling party;
- encrypting the audio communication to provide an encrypted audio communication;
- storing the encrypted audio communication;
- and
- providing to the calling party a code for decrypting the encrypted audio communication.
A process for recording audio communications, comprising:
- establishing an audio connection with at least two parties;
- accessing an audio communication between the at least two parties;
- encrypting the audio communication to provide an encrypted audio recording;
- generating a key which can be used to decrypt the encrypted audio recording;
- embedding a time stamp in the encrypted audio recording;
- generating at least two access codes, any of which can be used to obtain access to the encrypted audio recording;
- transmitting the key to the at least two parties;
- and
- transmitting the at least two access codes respectively to the at least two parties such that each party receives a unique access code.
A process for recording audio communications, comprising:
- establishing an audio connection with at least two parties;
- accessing an audio communication between the at least two parties;
- encrypting the audio communication to provide an encrypted audio recording;
- generating a key which can be used to decrypt the encrypted audio recording;
- generating at least two access codes, any of which can be used to obtain access to the encrypted audio recording;
- transmitting the key to the at least two parties;
- transmitting the at least two access codes respectively to the at least two parties such that each party receives a unique access code;
- receiving a telephone call from one of the at least two parties;
- receiving one of the at least two access codes from the one of the at least two parties;
- receiving the key from the one of the at least two parties;
- using the one of the at least two access codes to gain access to the encrypted audio recording;
- and
- using the key to decrypt the encrypted audio recording.
Dependencies are inferred from the claim text.