JPH1173504A5 - - Google Patents

Info

Publication number
JPH1173504A5
JPH1173504A5 JP1997232399A JP23239997A JPH1173504A5 JP H1173504 A5 JPH1173504 A5 JP H1173504A5 JP 1997232399 A JP1997232399 A JP 1997232399A JP 23239997 A JP23239997 A JP 23239997A JP H1173504 A5 JPH1173504 A5 JP H1173504A5
Authority
JP
Japan
Prior art keywords
authentication
encryption key
superimposed
information
authentication image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1997232399A
Other languages
English (en)
Japanese (ja)
Other versions
JP4034383B2 (ja
JPH1173504A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP23239997A priority Critical patent/JP4034383B2/ja
Priority claimed from JP23239997A external-priority patent/JP4034383B2/ja
Publication of JPH1173504A publication Critical patent/JPH1173504A/ja
Publication of JPH1173504A5 publication Critical patent/JPH1173504A5/ja
Application granted granted Critical
Publication of JP4034383B2 publication Critical patent/JP4034383B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP23239997A 1997-08-28 1997-08-28 真偽判定装置および真偽判定方法 Expired - Fee Related JP4034383B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23239997A JP4034383B2 (ja) 1997-08-28 1997-08-28 真偽判定装置および真偽判定方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23239997A JP4034383B2 (ja) 1997-08-28 1997-08-28 真偽判定装置および真偽判定方法

Publications (3)

Publication Number Publication Date
JPH1173504A JPH1173504A (ja) 1999-03-16
JPH1173504A5 true JPH1173504A5 (enrdf_load_stackoverflow) 2005-06-02
JP4034383B2 JP4034383B2 (ja) 2008-01-16

Family

ID=16938641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23239997A Expired - Fee Related JP4034383B2 (ja) 1997-08-28 1997-08-28 真偽判定装置および真偽判定方法

Country Status (1)

Country Link
JP (1) JP4034383B2 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3611487B2 (ja) 1999-08-02 2005-01-19 シャープ株式会社 カラー画像形成方法およびカラー画像形成装置
CN1398385B (zh) * 1999-12-07 2010-06-02 太阳微系统公司 识别装置、与识别装置通信的终端和验证照相图象的方法
JP2002074291A (ja) * 2000-08-31 2002-03-15 Oki Electric Ind Co Ltd 個人識別媒体と媒体読取装置
KR20030018444A (ko) * 2001-08-28 2003-03-06 (주)워치비젼 위조방지를 위한 신분증 발급 및 식별 장치와 그 방법
EP3164849B1 (en) * 2014-08-12 2020-05-06 Digimarc Corporation Data hiding for spot colors in product packaging
JP6707702B1 (ja) 2019-09-18 2020-06-10 株式会社ソリトンシステムズ ユーザ認証装置及びプログラム

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