ID |
原文 |
译文 |
44946 |
密钥协议是保障无线传感网络(WSN, wireless sensor network)安全性的关键技术之一。 |
The key protocol is one of the crucial technologies to ensure the security for wireless sensor network(WSN). |
44947 |
Parakh 等基于矩阵分解提出一种传感网密钥协议, |
Parakh, et al.proposed a key agreement for WSN based on matrix decomposition. |
44948 |
然而研究表明该协议存在安全隐患。 |
However, the study revealed that the protocol had security risks. |
44949 |
利用对称矩阵和置换矩阵性质,提出针对该协议的密钥恢复攻击方法。 |
A key recovery attack scheme against this protocol was proposed by using the properties of symmetric matrix and permutation matrix. |
44950 |
在截获节点行、列向量信息基础上,进行初等变换,构造线性代数攻击算法,求解出等价密钥, |
Based on intercepting the row and column vector of the node, elementary transformation was performed to construct a linear algebraic attack algorithm and the equivalent key was obtained. |
44951 |
计算复杂度为 O(N 6 )。 |
The computational complexity is O(N 6 ). |
44952 |
实验结果表明,在多项式计算复杂度内,该方法可恢复出上述协议的等价密钥,内存开销在可接受范围内。 |
Experimental results show that the method can recover the equivalent key of the above protocol within the polynomial computational complexity and the memory consumption is within an acceptable range. |
44953 |
此外,为了抵抗线性代数攻击,通过引入随机扰动矩阵,给出一种密钥协商修正方案,并进行了正确性与安全性分析。 |
In addition, an improved scheme for key agreement was proposed to resist the linear algebraic attack by using a random disturbance matrix, and the correctness and security analysis were also carried out. |
44954 |
提出了一种基于对数符合度下的识别新算法。 |
A new algorithm based on logarithmic conformity was proposed. |
44955 |
首先,从总的 RSC 码编码方程成立概率出发,引入能够很好衡量编码方程成立大小的对数符合度概念, |
Firstly, based on the probability of total Codding equation, the concept of logarithmic coincidence degree, which could measure the establishment of coding equation, was introduced. |