Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices
In transmitting video data securely over Video Sensor Networks (VSNs), since mobile handheld devices have limited resources in terms of processor clock speed and battery size, it is necessary to develop an efficient method to encrypt video data to meet the increasing demand for secure connections. S...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2015-04-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/15/4/7953 |
| _version_ | 1818473754185957376 |
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| author | Yongwha Chung Sungju Lee Taewoong Jeon Daihee Park |
| author_facet | Yongwha Chung Sungju Lee Taewoong Jeon Daihee Park |
| author_sort | Yongwha Chung |
| collection | DOAJ |
| description | In transmitting video data securely over Video Sensor Networks (VSNs), since mobile handheld devices have limited resources in terms of processor clock speed and battery size, it is necessary to develop an efficient method to encrypt video data to meet the increasing demand for secure connections. Selective encryption methods can reduce the amount of computation needed while satisfying high-level security requirements. This is achieved by selecting an important part of the video data and encrypting it. In this paper, to ensure format compliance and security, we propose a special encryption method for H.264, which encrypts only the DC/ACs of I-macroblocks and the motion vectors of P-macroblocks. In particular, the proposed new selective encryption method exploits the error propagation property in an H.264 decoder and improves the collective performance by analyzing the tradeoff between the visual security level and the processing speed compared to typical selective encryption methods (i.e., I-frame, P-frame encryption, and combined I-/P-frame encryption). Experimental results show that the proposed method can significantly reduce the encryption workload without any significant degradation of visual security. |
| first_indexed | 2024-04-14T04:27:30Z |
| format | Article |
| id | doaj.art-8c839cd96ea5450e88ad1432524e96f4 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T04:27:30Z |
| publishDate | 2015-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-8c839cd96ea5450e88ad1432524e96f42022-12-22T02:12:15ZengMDPI AGSensors1424-82202015-04-011547953796810.3390/s150407953s150407953Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile DevicesYongwha Chung0Sungju Lee1Taewoong Jeon2Daihee Park3Department of Computer Information Science, Korea University, Sejong KS002, KoreaDepartment of Computer Information Science, Korea University, Sejong KS002, KoreaDepartment of Computer Information Science, Korea University, Sejong KS002, KoreaDepartment of Computer Information Science, Korea University, Sejong KS002, KoreaIn transmitting video data securely over Video Sensor Networks (VSNs), since mobile handheld devices have limited resources in terms of processor clock speed and battery size, it is necessary to develop an efficient method to encrypt video data to meet the increasing demand for secure connections. Selective encryption methods can reduce the amount of computation needed while satisfying high-level security requirements. This is achieved by selecting an important part of the video data and encrypting it. In this paper, to ensure format compliance and security, we propose a special encryption method for H.264, which encrypts only the DC/ACs of I-macroblocks and the motion vectors of P-macroblocks. In particular, the proposed new selective encryption method exploits the error propagation property in an H.264 decoder and improves the collective performance by analyzing the tradeoff between the visual security level and the processing speed compared to typical selective encryption methods (i.e., I-frame, P-frame encryption, and combined I-/P-frame encryption). Experimental results show that the proposed method can significantly reduce the encryption workload without any significant degradation of visual security.http://www.mdpi.com/1424-8220/15/4/7953video sensor networkselective encryptionsmartphoneerror propagation |
| spellingShingle | Yongwha Chung Sungju Lee Taewoong Jeon Daihee Park Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices Sensors video sensor network selective encryption smartphone error propagation |
| title | Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices |
| title_full | Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices |
| title_fullStr | Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices |
| title_full_unstemmed | Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices |
| title_short | Fast Video Encryption Using the H.264 Error Propagation Property for Smart Mobile Devices |
| title_sort | fast video encryption using the h 264 error propagation property for smart mobile devices |
| topic | video sensor network selective encryption smartphone error propagation |
| url | http://www.mdpi.com/1424-8220/15/4/7953 |
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