WO2008146334A1 - 画像暗号化装置、画像復号装置、方法、及びプログラム - Google Patents

画像暗号化装置、画像復号装置、方法、及びプログラム Download PDF

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Publication number
WO2008146334A1
WO2008146334A1 PCT/JP2007/000583 JP2007000583W WO2008146334A1 WO 2008146334 A1 WO2008146334 A1 WO 2008146334A1 JP 2007000583 W JP2007000583 W JP 2007000583W WO 2008146334 A1 WO2008146334 A1 WO 2008146334A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
encryption key
region
generated
encrypting
Prior art date
Application number
PCT/JP2007/000583
Other languages
English (en)
French (fr)
Inventor
Hideaki Ishii
Taizo Anan
Kensuke Kuraki
Shohei Nakagata
Original Assignee
Fujitsu Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to KR1020097024617A priority Critical patent/KR101074951B1/ko
Priority to EP07737239A priority patent/EP2154878A4/en
Priority to PCT/JP2007/000583 priority patent/WO2008146334A1/ja
Priority to CN2007800531085A priority patent/CN101682682B/zh
Priority to JP2009516077A priority patent/JP4820446B2/ja
Publication of WO2008146334A1 publication Critical patent/WO2008146334A1/ja
Priority to US12/626,104 priority patent/US8588414B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C5/00—Ciphering apparatus or methods not provided for in the preceding groups, e.g. involving the concealment or deformation of graphic data such as designs, written or printed messages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32267—Methods relating to embedding, encoding, decoding, detection or retrieval operations combined with processing of the image
    • H04N1/32272—Encryption or ciphering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/44—Secrecy systems
    • H04N1/448—Rendering the image unintelligible, e.g. scrambling
    • H04N1/4486—Rendering the image unintelligible, e.g. scrambling using digital data encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Transmission Control (AREA)
  • Storage Device Security (AREA)
  • Facsimiles In General (AREA)

Abstract

　入力データを画像に変換し、該入力画像について、画像を暗号化する領域である暗号化領域を指定する。また、暗号鍵を基に、該暗号鍵に関連するから情報である暗号鍵関連情報を生成し、その暗号鍵関連情報を前記暗号化領域の画像内に埋め込んで、第1の中間画像を生成する。続いて、その第1の中間画像を前記暗号鍵に基づいて変換し、第２の中間画像を生成する。そして、前記暗号化領域の位置が特定可能となるように、前記第２の中間画像の画素値を変換する。この変換の結果、前記入力画像内の前記暗号化領域の部分が暗号化された暗号化画像が生成される。
PCT/JP2007/000583 2007-05-30 2007-05-30 画像暗号化装置、画像復号装置、方法、及びプログラム WO2008146334A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020097024617A KR101074951B1 (ko) 2007-05-30 2007-05-30 화상 암호화 장치, 화상 복호 장치, 방법, 및 기록 매체
EP07737239A EP2154878A4 (en) 2007-05-30 2007-05-30 IMAGE ENCRYPTION DEVICE, IMAGE KEYING DEVICE, METHOD AND PROGRAM
PCT/JP2007/000583 WO2008146334A1 (ja) 2007-05-30 2007-05-30 画像暗号化装置、画像復号装置、方法、及びプログラム
CN2007800531085A CN101682682B (zh) 2007-05-30 2007-05-30 图像加密装置、图像解密装置以及方法
JP2009516077A JP4820446B2 (ja) 2007-05-30 2007-05-30 画像暗号化装置、画像復号装置、方法、及びプログラム
US12/626,104 US8588414B2 (en) 2007-05-30 2009-11-25 Image encryption and image decryption apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/000583 WO2008146334A1 (ja) 2007-05-30 2007-05-30 画像暗号化装置、画像復号装置、方法、及びプログラム

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/626,104 Continuation US8588414B2 (en) 2007-05-30 2009-11-25 Image encryption and image decryption apparatus and method

Publications (1)

Publication Number Publication Date
WO2008146334A1 true WO2008146334A1 (ja) 2008-12-04

Family

ID=40074623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/000583 WO2008146334A1 (ja) 2007-05-30 2007-05-30 画像暗号化装置、画像復号装置、方法、及びプログラム

Country Status (6)

Country Link
US (1) US8588414B2 (ja)
EP (1) EP2154878A4 (ja)
JP (1) JP4820446B2 (ja)
KR (1) KR101074951B1 (ja)
CN (1) CN101682682B (ja)
WO (1) WO2008146334A1 (ja)

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KR101780636B1 (ko) 2016-05-16 2017-09-21 주식회사 코인플러그 인증 정보의 발급 방법 및 이를 지원하는 블록체인기반 인증 정보 관리 서버
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Also Published As

Publication number Publication date
CN101682682B (zh) 2012-11-21
US20100074443A1 (en) 2010-03-25
EP2154878A1 (en) 2010-02-17
US8588414B2 (en) 2013-11-19
CN101682682A (zh) 2010-03-24
EP2154878A4 (en) 2012-09-26
KR101074951B1 (ko) 2011-10-18
JP4820446B2 (ja) 2011-11-24
JPWO2008146334A1 (ja) 2010-08-12
KR20100005146A (ko) 2010-01-13

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