Patent ID: 6470449
Filing Date: 2002-10-22
Classification: G06F,H04L

Abstract:
A device for time-stamping and storing input data comprising:a clock; a tamper-proof permanent data storage device; input/output means including port means for receiving and transmitting digital signals; a digital bus connected to the input/output means and the clock; controller means connected to the bus for controlling operation of said input/output means and said clock to receive input data and requests for time-stamping and storing the input data applied to the port means of said input/output means, to read time data from the clock, to combine the input data with said time data to create a tamper-proof real-time stamp, and to transmit the time-stamped data to the tamper-proof permanent data storage device; and seal means enclosing said clock, said input/output means, said digital bus, said tamper-proof permanent data storage device, and said controller means to prevent access to said clock, said controller means, said tamper-proof permanent data storage device, and said input/output means except via the port means of said input/output means.