TW200520494A - Method and system for data encryption - Google Patents
Method and system for data encryptionInfo
- 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
Links
Landscapes
- 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.
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)
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)
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 |
-
2003
- 2003-12-15 TW TW92135350A patent/TWI297249B/en not_active IP Right Cessation
Cited By (1)
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
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |