计算机安全系统中随机序列发生器的研究 |
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引用本文: | 苏桂平,吕述望.计算机安全系统中随机序列发生器的研究[J].计算机研究与发展,2003,40(7):994-1000. |
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作者姓名: | 苏桂平 吕述望 |
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作者单位: | 中国科学院研究生院信息科学与工程学院信息安全国家重点实验室,北京,100039 |
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基金项目: | 国家“九七三”国家重点基础研究发展规划项目基金 (G19990 3 5 80 8),国家“八六三”高技术研究发展计划基金 ( 2 0 0 1AA14 10 10 ) |
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摘 要: | 对当前计算机安全系统中几种常用的真随机序列发生器进行研究和分析,指出它们存在的主要问题是序列的输出数量不够多、质量较低、速度较慢.提出用Hash函数、傅立叶变换、小波分析、异和运算、增加随机源等方法用于真随机序列发生器中,目的是增加随机序列发生器的输出数量和消除偏差,以满足快速发展的计算机安全技术的要求.特别是小波分析理论在随机序列发生器中的应用以及增加微机电源作为随机源的设想是首次提出的.
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关 键 词: | 随机序列发生器 计算机安全系统 密码技术 噪声信号 |
Study of Random Sequence Generators of a Computer Security System |
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Abstract: | Some random number generators used currently in a computer security system are studied and analyzed It is pointed out that the main problems of random sequence generators are their less output, lower quality and slower speed Hash function, Fourier transform, wavelet analysis, XOR operation and additional random source may be applied to stretch the quantity and De Skew to meet the demand of computer security technology, which is developing rapidly Especially, the application of wavelet analysis theory to random sequence generators as well as the use of additional computer power source as random source are discussed firstly |
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Keywords: | random sequence generator computer security system cryptographic technology noise signal |
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