TW200520494A - Method and system for data encryption - Google Patents

Method and system for data encryption

Info

Publication number
TW200520494A
TW200520494A TW092135350A TW92135350A TW200520494A TW 200520494 A TW200520494 A TW 200520494A TW 092135350 A TW092135350 A TW 092135350A TW 92135350 A TW92135350 A TW 92135350A TW 200520494 A TW200520494 A TW 200520494A
Authority
TW
Taiwan
Prior art keywords
vocabularies
water mark
encrypted
vocabulary
article
Prior art date
Application number
TW092135350A
Other languages
Chinese (zh)
Other versions
TWI297249B (en
Inventor
Yuei-Lin Chiang
Lu-Ping Chang
Wen-Chih Chen
Wen-Tai Hsieh
Original Assignee
Inst Information Industry
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 Inst Information Industry filed Critical Inst Information Industry
Priority to TW92135350A priority Critical patent/TWI297249B/en
Publication of TW200520494A publication Critical patent/TW200520494A/en
Application granted granted Critical
Publication of TWI297249B publication Critical patent/TWI297249B/en

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  • Storage Device Security (AREA)
  • Document Processing Apparatus (AREA)

Abstract

Disclosed is a method for data encryption, which firstly, uses a Chinese vocabulary division method to perform vocabulary division of an article, and determines and marks vocabulary types. Thereafter, encrypted information of the article is generated, including conversion of water mark information into bit strings and using a prime number to generate a quadratic residual table to serve as a criterion for selection of encrypted vocabularies. Next, vocabularies to be encrypted and synonyms are selected to exclude vocabularies in which the water mark is not suitable to embed according to relative vocabulary selection rule, and followed by exchange of vocabularies. When vocabularies in which the water mark can be embedded are identified, the bit strings of the water mark are sequentially embedded in the selected vocabularies in a bit by bit manner. Last, when the previous steps are all done, an encrypted article with water mark embedded therein is completed.
TW92135350A 2003-12-15 2003-12-15 Method and system for data encryption TWI297249B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW92135350A TWI297249B (en) 2003-12-15 2003-12-15 Method and system for data encryption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW92135350A TWI297249B (en) 2003-12-15 2003-12-15 Method and system for data encryption

Publications (2)

Publication Number Publication Date
TW200520494A true TW200520494A (en) 2005-06-16
TWI297249B TWI297249B (en) 2008-05-21

Family

ID=45069024

Family Applications (1)

Application Number Title Priority Date Filing Date
TW92135350A TWI297249B (en) 2003-12-15 2003-12-15 Method and system for data encryption

Country Status (1)

Country Link
TW (1) TWI297249B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI736998B (en) * 2019-10-04 2021-08-21 東隆五金工業股份有限公司 Data encryption and decryption processing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI421704B (en) * 2011-08-03 2014-01-01 Inventec Corp A crypto method and a system of the de-duplication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI736998B (en) * 2019-10-04 2021-08-21 東隆五金工業股份有限公司 Data encryption and decryption processing method

Also Published As

Publication number Publication date
TWI297249B (en) 2008-05-21

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Legal Events

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MM4A Annulment or lapse of patent due to non-payment of fees