Dual Key Speech Encryption Algorithm Based Underdetermined BSS
When the number of the mixed signals is less than that of the source signals, the underdetermined blind source separation (BSS) is a significant difficult problem. Due to the fact that the great amount data of speech communications and real-time communication has been required, we utilize the intrac...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/974735 |
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| _version_ | 1850223970759999488 |
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| author | Huan Zhao Shaofang He Zuo Chen Xixiang Zhang |
| author_facet | Huan Zhao Shaofang He Zuo Chen Xixiang Zhang |
| author_sort | Huan Zhao |
| collection | DOAJ |
| description | When the number of the mixed signals is less than that of the source signals, the underdetermined blind source separation (BSS) is a significant difficult problem. Due to the fact that the great amount data of speech communications and real-time communication has been required, we utilize the intractability of the underdetermined BSS problem to present a dual key speech encryption method. The original speech is mixed with dual key signals which consist of random key signals (one-time pad) generated by secret seed and chaotic signals generated from chaotic system. In the decryption process, approximate calculation is used to recover the original speech signals. The proposed algorithm for speech signals encryption can resist traditional attacks against the encryption system, and owing to approximate calculation, decryption becomes faster and more accurate. It is demonstrated that the proposed method has high level of security and can recover the original signals quickly and efficiently yet maintaining excellent audio quality. |
| format | Article |
| id | doaj-art-5441b1af243f4d0480ffe074cb80f2c1 |
| institution | OA Journals |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-5441b1af243f4d0480ffe074cb80f2c12025-08-20T02:05:46ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/974735974735Dual Key Speech Encryption Algorithm Based Underdetermined BSSHuan Zhao0Shaofang He1Zuo Chen2Xixiang Zhang3School of Information Science and Technology, Hunan University, Changsha, Hunan 410082, ChinaSchool of Information Science and Technology, Hunan University, Changsha, Hunan 410082, ChinaSchool of Information Science and Technology, Hunan University, Changsha, Hunan 410082, ChinaSchool of Information Science and Technology, Hunan University, Changsha, Hunan 410082, ChinaWhen the number of the mixed signals is less than that of the source signals, the underdetermined blind source separation (BSS) is a significant difficult problem. Due to the fact that the great amount data of speech communications and real-time communication has been required, we utilize the intractability of the underdetermined BSS problem to present a dual key speech encryption method. The original speech is mixed with dual key signals which consist of random key signals (one-time pad) generated by secret seed and chaotic signals generated from chaotic system. In the decryption process, approximate calculation is used to recover the original speech signals. The proposed algorithm for speech signals encryption can resist traditional attacks against the encryption system, and owing to approximate calculation, decryption becomes faster and more accurate. It is demonstrated that the proposed method has high level of security and can recover the original signals quickly and efficiently yet maintaining excellent audio quality.http://dx.doi.org/10.1155/2014/974735 |
| spellingShingle | Huan Zhao Shaofang He Zuo Chen Xixiang Zhang Dual Key Speech Encryption Algorithm Based Underdetermined BSS The Scientific World Journal |
| title | Dual Key Speech Encryption Algorithm Based Underdetermined BSS |
| title_full | Dual Key Speech Encryption Algorithm Based Underdetermined BSS |
| title_fullStr | Dual Key Speech Encryption Algorithm Based Underdetermined BSS |
| title_full_unstemmed | Dual Key Speech Encryption Algorithm Based Underdetermined BSS |
| title_short | Dual Key Speech Encryption Algorithm Based Underdetermined BSS |
| title_sort | dual key speech encryption algorithm based underdetermined bss |
| url | http://dx.doi.org/10.1155/2014/974735 |
| work_keys_str_mv | AT huanzhao dualkeyspeechencryptionalgorithmbasedunderdeterminedbss AT shaofanghe dualkeyspeechencryptionalgorithmbasedunderdeterminedbss AT zuochen dualkeyspeechencryptionalgorithmbasedunderdeterminedbss AT xixiangzhang dualkeyspeechencryptionalgorithmbasedunderdeterminedbss |