| Qiu Jing (邱劲),Liao Xiaofeng,Xiao Di,Xiang Tao.[J].高技术通讯(英文),2013,19(1):76~81 |
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| Adaptive image encryption scheme based on chaotic map |
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| DOI： |
| 中文关键词: |
| 英文关键词: image encryption, chaotic map, substitution-diffusion, chaotic key stream |
| 基金项目: |
| Author Name | Affiliation | | Qiu Jing (邱劲) | | | Liao Xiaofeng | | | Xiao Di | | | Xiang Tao | |
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| 中文摘要: |
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| 英文摘要: |
| Most of the existing image encryption schemes with the substitution-diffusion structure are not secure and efficient. In this letter, a chaos-based pseudo-random bit generator with good statistical properties is proposed, where a simple post-processing by compressing is employed. A new adaptive image encryption scheme with the substitution-diffusion architecture is designed using the new pseudo-random bit generator. In the scheme, the session key for the pseudo-random bit generator is dependent on the content of the image which ensures that the scheme can effectively resist known-plaintext and chosen-plaintext attacks. Theoretical analysis and computer simulation indicate that the proposed algorithm is efficient and highly secure. |
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