GB2617878B - Halftone secret sharing and extracting method based on optimal data allocation - Google Patents
Halftone secret sharing and extracting method based on optimal data allocation Download PDFInfo
- Publication number
- GB2617878B GB2617878B GB2210856.7A GB202210856A GB2617878B GB 2617878 B GB2617878 B GB 2617878B GB 202210856 A GB202210856 A GB 202210856A GB 2617878 B GB2617878 B GB 2617878B
- Authority
- GB
- United Kingdom
- Prior art keywords
- halftone
- method based
- extracting method
- secret sharing
- data allocation
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0021—Image watermarking
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
-
- 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
- H04N1/40—Picture signal circuits
- H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
- H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
- H04N1/4052—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- General Health & Medical Sciences (AREA)
- Bioethics (AREA)
- Computer Hardware Design (AREA)
- Health & Medical Sciences (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Image Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210428470.2A CN114913048A (en) | 2022-04-22 | 2022-04-22 | Halftone secret sharing method and halftone secret extraction method based on optimized data distribution |
Publications (3)
Publication Number | Publication Date |
---|---|
GB202210856D0 GB202210856D0 (en) | 2022-09-07 |
GB2617878A GB2617878A (en) | 2023-10-25 |
GB2617878B true GB2617878B (en) | 2024-05-29 |
Family
ID=82764496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2210856.7A Active GB2617878B (en) | 2022-04-22 | 2022-07-25 | Halftone secret sharing and extracting method based on optimal data allocation |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN114913048A (en) |
GB (1) | GB2617878B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0690365A (en) * | 1992-07-20 | 1994-03-29 | Ricoh Co Ltd | Facsimile equipment and privacy communication method for facsimile equipment |
CN109274855A (en) * | 2018-07-31 | 2019-01-25 | 北京印刷学院 | A kind of (k, n) halftoning visual encryption method based on characteristic area |
CN113190807A (en) * | 2021-05-31 | 2021-07-30 | 中国人民武装警察部队工程大学 | Ciphertext domain reversible information hiding method based on image secret sharing |
-
2022
- 2022-04-22 CN CN202210428470.2A patent/CN114913048A/en active Pending
- 2022-07-25 GB GB2210856.7A patent/GB2617878B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0690365A (en) * | 1992-07-20 | 1994-03-29 | Ricoh Co Ltd | Facsimile equipment and privacy communication method for facsimile equipment |
CN109274855A (en) * | 2018-07-31 | 2019-01-25 | 北京印刷学院 | A kind of (k, n) halftoning visual encryption method based on characteristic area |
CN113190807A (en) * | 2021-05-31 | 2021-07-30 | 中国人民武装警察部队工程大学 | Ciphertext domain reversible information hiding method based on image secret sharing |
Also Published As
Publication number | Publication date |
---|---|
GB2617878A (en) | 2023-10-25 |
CN114913048A (en) | 2022-08-16 |
GB202210856D0 (en) | 2022-09-07 |
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