密码的强大程度取决于它的长度、复杂度和随机性。
The strength of a password depends on its length, complexity and randomness.
本文对这三种密码协议的执行时间、结构特性以及实现分析的软件复杂度给出了客观的评估。
The thesis also objectively evaluates the performance of time delay, structure properties and software complexity of the above three cryptographic protocols.
文章把线性复杂度理论检用于密码技术中，设计一种实用的序列随机性检验方法。
Linear complexity theory be applied to cryptographic technology, designing a testing method of a random sequence.
我们利用该新算法以更低的计算复杂度计算出了LILI- 128流密码体制的降次函数。
When applied to LILI-128 cryptographic system to construct depressed functions, the new algorithm obtains a lower computational complexity.
利用DNA合成技术、DNA克隆技术、PCR扩增技术以及DNA芯片技术，结合密码学的计算复杂度理论，提出了一种基于DNA技术的加密方法。
Using the technologies of DNA synthesis, DNA clone, PCR and DNA chip and the theory of computational complexity, an encryption scheme is formed.
实践表明，这种基于复合加密的公钥密码系统，算法的时间复杂度和空间复杂度并未受到影响，但其安全性较早期各同类系统更高、更易被用户采纳。
It is proved that this public key cryptosystem based on compound encryption has not been influenced on time complexity and space complexity, but it has more security t.
理论分析表明此密钥序列具有较高的线性复杂度和良好的密码学特性。
It is proved that series has high complexity and good cipher quality.
对于流密码体制中使用的伪随机序列，我们要求它既要有尽可能大的线性复杂度，又要能抗相关攻击。
For cryptologic applications, it is of course highly disirable that the linear complexities of pseudorandom sequences be as large as possible, and the sequences resist the correlation attack.
对于流密码体制中使用的伪随机序列，我们要求它既要有尽可能大的线性复杂度，又要能抗相关攻击。
For cryptologic applications, it is of course highly disirable that the linear complexities of pseudorandom sequences be as large as possible, and the sequences resist the correlation attack.
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