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| 一种新的一阶段加密认证模式 | |
| 引用本文： | 徐津,温巧燕,王大印.一种新的一阶段加密认证模式[J].电子学报,2009,37(10):2187-2192. |
| 作者姓名： | 徐津 温巧燕 王大印 |
| 作者单位： | 1. 北京邮电大学网络与交换技术国家重点实验室,北京,100876;北京电子科技学院基础部,北京,100070 2. 北京邮电大学网络与交换技术国家重点实验室,北京,100876 3. 中国科学院软件所信息安全国家重点实验室,北京,100080 |
| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金，北京市自然科学基金 |
| 摘 要： | 在信息安全的许多实际应用中往往需要同时提供私密性和认证性,通常采用加密模式和消息认证码的组合来实现这一目的,但这种实现方式须对同一消息分加密和认证两阶段进行处理,不仅密钥使用量大,而且效率低下.本文基于CBC加密模式设计了一种新的一阶段加密认证方案OXCBC,能够同时提供私密性和认证性,且仅使用一个密钥和一个Nonce,与同类型的加密认证方案相比具有较高的效率.在分组密码是强伪随机置换的假设下,证明了该方案的认证性. |
| 关 键 词： | 加密认证模式 伪随机置换 可证明安全 Game-Playing |
A New One-Pass Authenticated Encryption Model |
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| XU Jin,WEN Qiao-yan,WANG Da-yin.A New One-Pass Authenticated Encryption Model[J].Acta Electronica Sinica,2009,37(10):2187-2192. | |
| Authors: | XU Jin WEN Qiao-yan WANG Da-yin |
| Affiliation: | 1. State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China;2. Beijing Electronic Science and Technology Institute,Beijing 100070,China;3. State Key Laboratory of Information Security,Institute of Software,Chinese Academy of Science,Beijing 100080,China |
| Abstract: | In many practical applications of information security,an authenticated-encryption scheme is often constructed by appropriately combining an encryption scheme and a message authentication code. Using this scheme, the same message must be deal with in two-pass,not only using two keys,but also having low efficiency. Based on CBC mode, we propose a new one-pass authenticated encryption mode OXCBC, which provides privacy and authenticity simultaneously. OXCBC uses only one key and a nonce and is more efficient than other one-pass authenticated encryption schemes. We prove OXCBC secure,quantifying the adversary' s ability to violate the mode's authenticity in terms of the quality of its block cipher as a strong PRP. |
| Keywords: | Game-Playing |
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