Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2006-01-17
2006-01-17
Revak, Christopher (Department: 2131)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C713S176000, C380S044000, C380S257000, C379S067100
Reexamination Certificate
active
06988205
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.
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Jorasch James A.
Sparico Thomas M.
Walker Jay S.
Downs Michael D.
Fincham Magdalena M.
Revak Christopher
Walker Digital, LLC
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