System for auditing shredding data
AssigneesKabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation
InventorMasahiro SHISHIKURA
Life of this patent
Estimating the term…
Abstract
According to one embodiment, there is provided a method for auditing shredding data including first count information in a system for auditing shredding data. The audit method includes causing a paper sheet processing apparatus to generate a first MAC based on the first count information using a first MAC generation key, causing the paper sheet processing apparatus to transmit the first count information and the first MAC to a first computing unit, causing the first computing unit to obtain second count information based on the first MAC using a second MAC generation key, causing the first computing unit to compare the first count information and the second count information, and determining an audit result.
Claims14
A method for auditing shredding data including first count information which includes the number of processed paper sheets in a system for auditing shredding data, including a paper sheet processing apparatus which inspects paper sheets and classifies the paper sheets based on a result of inspection of the paper sheets, the audit method comprising:
- causing the paper sheet processing apparatus to generate a first MAC based on the first count information using a first MAC generation key;
- causing the paper sheet processing apparatus to transmit the first count information and the first MAC to a first computing unit which performs arithmetic computation for an audit;
- causing the first computing unit to obtain second count information based on the first MAC using a second MAC generation key stored in a first IC card and paired with the first MAC generation key;
- causing the first computing unit to compare the first count information and the second count information;
- and
- determining an audit result as normality when the first count information and the second count information compared by the first computing unit coincide with each other, and determining the audit result as abnormality when the first count information and the second count information compared by the first computing unit do not coincide with each other.
A system for auditing shredding data comprising:
- a paper sheet processing apparatus configured to inspect paper sheets and classify the paper sheets based on a result of inspection of the paper sheets;
- a management computer configured to manage first count information including the number of processed paper sheets;
- a first IC card used for audit;
- and
- a first computing unit configured to perform arithmetic computation for audit,
- wherein the paper sheet processing apparatus includes:
- a first MAC generation unit configured to generate a first MAC based on the first count information using a first MAC generation key;
- and
- a first transmitting unit configured to transmit the first count information and the first MAC to the first computing unit,
- wherein the first computing unit includes:
- a first count information computing unit configured to obtain second count information based on the first MAC using a second MAC generation key stored in the first IC card and paired with the first MAC generation key;
- and
- a first comparing unit configured to compare the first count information and the second count information,
- wherein an audit result is determined as normality when the first count information and the second count information compared by the first comparing unit coincide with each other, and the audit result is determined as abnormality when the first count information and the second count information compared by the first comparing unit do not coincide with each other.
Dependencies are inferred from the claim text.