Title:
ENCRYPTING APPARATUS AND ENCRYPTING METHOD
Document Type and Number:
WIPO Patent Application WO/2005/081450
Kind Code:
A1
Abstract:
An encrypting apparatus and an encrypting method wherein the reliability of an encrypting function can be improved. A parameter specific to a solid-state imaging element is produced based on a uniform image signal (S2) outputted, from the solid-state imaging element, as an imaging result of a uniform subject in an imaging part (11). Encryption key information (D2) derived from the foregoing specific parameter is used to encrypt authentication information (D1). In this way, the concealment of the authentication information (D1) can be easily and simply maintained, so that the reliability of the encryption function can be improved.
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Inventors:
SATO HIDEO (JP)
Application Number:
PCT/JP2004/019713
Publication Date:
September 01, 2005
Filing Date:
December 22, 2004
Export Citation:
Assignee:
SONY CORP (JP)
SATO HIDEO (JP)
SATO HIDEO (JP)
International Classes:
H04L9/08; G06F21/00; G06K9/00; H04L9/32; (IPC1-7): H04L9/08; H04L9/32
Foreign References:
| JP2002073424A | 2002-03-12 | |||
| JP2003248578A | 2003-09-05 |
Other References:
See also references of EP 1608101A4
Attorney, Agent or Firm:
Tanabe, Shigemoto (6-4 Osaki 3-chom, Shinagawa-ku Tokyo, JP)
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