On the security defects of an image encryption scheme
This paper studies the security of a recently-proposed chaos-based image encryption scheme and points out the following problems: (1) there exist a number of invalid keys and weak keys, and some keys are partially equivalent for encryption/decryption; (2) given one chosen plain-image, a subkey K<...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2009
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| Online Access: | http://scholars.utp.edu.my/id/eprint/457/ http://scholars.utp.edu.my/id/eprint/457/1/paper.pdf |
| _version_ | 1848658991851241472 |
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| author | C., Li S., Li M., Asim J., Nunez G., Alvarez G., Chen |
| author_facet | C., Li S., Li M., Asim J., Nunez G., Alvarez G., Chen |
| author_sort | C., Li |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | This paper studies the security of a recently-proposed chaos-based image encryption scheme and points out the following problems: (1) there exist a number of invalid keys and weak keys, and some keys are partially equivalent for encryption/decryption; (2) given one chosen plain-image, a subkey K<sub>10</sub> can be guessed with a smaller computational complexity than that of the simple brute-force attack; (3) given at most 128 chosen plain-images, a chosen-plaintext attack can possibly break the following part of the secret key: fenced(K<sub>i</sub> mod 128)<sub>i = 4</sub><sup>10</sup>, which works very well when K<sub>10</sub> is not too large; (4) when K<sub>10</sub> is relatively small, a known-plaintext attack can be carried out with only one known plain-image to recover some visual information of any other plain-images encrypted by the same key. © 2009 Elsevier B.V. All rights reserved.
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| first_indexed | 2025-11-13T07:23:20Z |
| format | Article |
| id | oai:scholars.utp.edu.my:457 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:23:20Z |
| publishDate | 2009 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:4572017-01-19T08:25:38Z http://scholars.utp.edu.my/id/eprint/457/ On the security defects of an image encryption scheme C., Li S., Li M., Asim J., Nunez G., Alvarez G., Chen TK Electrical engineering. Electronics Nuclear engineering This paper studies the security of a recently-proposed chaos-based image encryption scheme and points out the following problems: (1) there exist a number of invalid keys and weak keys, and some keys are partially equivalent for encryption/decryption; (2) given one chosen plain-image, a subkey K<sub>10</sub> can be guessed with a smaller computational complexity than that of the simple brute-force attack; (3) given at most 128 chosen plain-images, a chosen-plaintext attack can possibly break the following part of the secret key: fenced(K<sub>i</sub> mod 128)<sub>i = 4</sub><sup>10</sup>, which works very well when K<sub>10</sub> is not too large; (4) when K<sub>10</sub> is relatively small, a known-plaintext attack can be carried out with only one known plain-image to recover some visual information of any other plain-images encrypted by the same key. © 2009 Elsevier B.V. All rights reserved. 2009 Article NonPeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/457/1/paper.pdf C., Li and S., Li and M., Asim and J., Nunez and G., Alvarez and G., Chen (2009) On the security defects of an image encryption scheme. Image and Vision Computing, 27 (9). pp. 1371-1381. ISSN 2628856 http://www.scopus.com/inward/record.url?eid=2-s2.0-67349203285&partnerID=40&md5=5385f9470ba91a7ead6bdefd47b999d7 10.1016/j.imavis.2008.12.008 10.1016/j.imavis.2008.12.008 10.1016/j.imavis.2008.12.008 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering C., Li S., Li M., Asim J., Nunez G., Alvarez G., Chen On the security defects of an image encryption scheme |
| title | On the security defects of an image encryption scheme
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| title_full | On the security defects of an image encryption scheme
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| title_fullStr | On the security defects of an image encryption scheme
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| title_full_unstemmed | On the security defects of an image encryption scheme
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| title_short | On the security defects of an image encryption scheme
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| title_sort | on the security defects of an image encryption scheme |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://scholars.utp.edu.my/id/eprint/457/ http://scholars.utp.edu.my/id/eprint/457/ http://scholars.utp.edu.my/id/eprint/457/ http://scholars.utp.edu.my/id/eprint/457/1/paper.pdf |