CONDITIONAL FACTORIZATION BASED ON LATTICE THEORY FOR 〈K,1〉-INTEGERS |
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作者姓名: | Zheng Yonghui Zhu Yuefei |
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作者单位: | Network Engineering Department, Information Engineering University, Zhengzhou 450002, China |
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基金项目: | Supported by the National Natural Science Foundation of China (No.60473021). |
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摘 要: | In this paper, the integer N = p^kq is called a 〈k, 1〉-integer, if p and q are odd primes with almost the same size and k is a positive integer. Such integers were previously proposed for various cryptographic applications. The conditional factorization based on lattice theory for n-bit 〈k, 1〉-integers is considered, and there is an algorithm in time polynomial in n to factor these integers if the least significant |(2k - 1)n/(3k-1)(k+1)| bits of p are given.
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关 键 词: | 密码系统 数域 椭圆曲线法 点阵理论 〈K 1〉-整数 |
收稿时间: | 2006-07-17 |
修稿时间: | 2006-12-14 |
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