SG144772A1 - Encryption and decryption methods and apparatus - Google Patents

Encryption and decryption methods and apparatus

Info

Publication number
SG144772A1
SG144772A1 SG200700649-7A SG2007006497A SG144772A1 SG 144772 A1 SG144772 A1 SG 144772A1 SG 2007006497 A SG2007006497 A SG 2007006497A SG 144772 A1 SG144772 A1 SG 144772A1
Authority
SG
Singapore
Prior art keywords
image
encryption
files
data
payload
Prior art date
Application number
SG200700649-7A
Inventor
Lan Bo
Tan Tze Kian
Original Assignee
Victor Company Of Japan
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 Victor Company Of Japan filed Critical Victor Company Of Japan
Priority to SG200700649-7A priority Critical patent/SG144772A1/en
Publication of SG144772A1 publication Critical patent/SG144772A1/en

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Abstract

Encryption and Decryption Methods and Apparatus Encryption and Decryption mechanisms for image files, e.g. JPEG files, are disclosed that encrypt the image data in the payload, but that retain marker codes and associated data as plaintext. This allows for secure transfer and storage of images, whilst also allowing the image files to be analyzed by image decoders and the like to provide information on the files without allowing access to the image itself. The encryption process preferably maintains the length of the payload data; and marker codes in the resulting ciphertext may be replaced by non-marker code data. (FIG. 5)
SG200700649-7A 2007-01-26 2007-01-26 Encryption and decryption methods and apparatus SG144772A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SG200700649-7A SG144772A1 (en) 2007-01-26 2007-01-26 Encryption and decryption methods and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG200700649-7A SG144772A1 (en) 2007-01-26 2007-01-26 Encryption and decryption methods and apparatus

Publications (1)

Publication Number Publication Date
SG144772A1 true SG144772A1 (en) 2008-08-28

Family

ID=39710868

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200700649-7A SG144772A1 (en) 2007-01-26 2007-01-26 Encryption and decryption methods and apparatus

Country Status (1)

Country Link
SG (1) SG144772A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115567613A (en) * 2022-08-29 2023-01-03 西安爱生技术集团有限公司 Encryption and decryption method for variable-word-length communication between flight control machine and airborne transponder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1361692A2 (en) * 2002-05-09 2003-11-12 Nec Corporation Encryption/decryption system and encryption/decryption method
US20030231765A1 (en) * 2002-05-31 2003-12-18 Broadcom Corporation Methods and apparatus for performing authentication and decryption
EP1392018A1 (en) * 2002-07-17 2004-02-25 Hewlett-Packard Development Company, L.P. Method and apparatus for securely transferring data
US20040047466A1 (en) * 2002-09-06 2004-03-11 Joel Feldman Advanced encryption standard hardware accelerator and method
EP1503590A2 (en) * 2003-07-31 2005-02-02 Sony United Kingdom Limited Access control for digital video stream data
GB2406246A (en) * 2003-09-17 2005-03-23 Hewlett Packard Development Co Secure Provision of Image Data

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1361692A2 (en) * 2002-05-09 2003-11-12 Nec Corporation Encryption/decryption system and encryption/decryption method
US20030231765A1 (en) * 2002-05-31 2003-12-18 Broadcom Corporation Methods and apparatus for performing authentication and decryption
EP1392018A1 (en) * 2002-07-17 2004-02-25 Hewlett-Packard Development Company, L.P. Method and apparatus for securely transferring data
US20040047466A1 (en) * 2002-09-06 2004-03-11 Joel Feldman Advanced encryption standard hardware accelerator and method
EP1503590A2 (en) * 2003-07-31 2005-02-02 Sony United Kingdom Limited Access control for digital video stream data
GB2406246A (en) * 2003-09-17 2005-03-23 Hewlett Packard Development Co Secure Provision of Image Data

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115567613A (en) * 2022-08-29 2023-01-03 西安爱生技术集团有限公司 Encryption and decryption method for variable-word-length communication between flight control machine and airborne transponder

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