Image processing apparatus and image processing method

Details Image processing apparatus and image processing method Image processing apparatus and image processing method

2007-11-13

2007-11-13

Zand, Kambiz (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

Reexamination Certificate

active

09521424

ABSTRACT:
An apparatus generates additional data used to check whether an encoded digital image is changed or not. The apparatus includes a calculation unit and a recording unit. The calculation unit (a) performs a predetermined calculation using the encoded digital image and confidential information and (b) generates the additional data by applying a one-way function to a result of the predetermined calculation. The recording unit records both the encoded digital image and the additional data on a recording medium. The confidential information includes (a) first information unique to the apparatus, and (b) second information unique to an external apparatus connected to the apparatus.

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Schneier, Applied Cryptography 1996, Wiley and Sons, 2ndEdition, pp. 442-443.

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