安全性

With the development of electronic technique of banks, traditional bill validity check method has been an obstacle because of its low efficiency and bad security. As a result, the electronic payment cryptograph system emerges, and it has been used widely in banks.

随着银行业电子化的发展，传统的银行票据验证方式由于效率低、安全性差，成为制约银行业务发展的一大障碍；于是，电子支付密码系统应运而生，并在银行业被广泛应用。

In this paper, aformal language PEP (principals + environment = protocol ) for the specification of cryptograph is proposed.

加密协议及其形式化分析网络加密协议的目的在于运用加密技术保证开放网络的安全性。

Elliptic curve cryptograph is based on the difficulty of solving discrete logarithm on elliptic curve domain, and therefore it has higher security than other cryptography.

椭圆曲线密码机制是基于椭圆曲线域上求离散对数难度，因此具有更高的安全性。

It is an important and hard problem in the area of computer network security to analyze cryptographic protocols.

密码协议安全性的分析是当前网络安全研究领域的一个世界性难题。

Based on some cryptographic assumptions, the security of the scheme was also proved.

在基于某些密码学假设的前提下，证明了方案的安全性。

Since the first quantum cryptographical protocol BB84, the securityanalysis of these protocols has been started.

自第一个量子密码协议BB84提出以来，人们就开始了对量子密码协议安全性分析的研究。

It is believed that in modern cryptography, any algorithm of encryption and decryption in cryptographical systems could be public, and the security should rely on the secure key.

现代密码学认为，任何加密体系的加密和解密算法都可以公开，其安全性在于密钥的保密性。

However, according to cryptography's characteristic, the security of IPSec system relies on its key.

然而，根据密码学的特点，IPSec系统的安全性取决于其密钥的安全。

The security of the secret key is a very important and central problem in the field of cryptology.

在一个密码体系中，****的安全性是一个非常重要的核心问题。

Besides, the experiment also proves that Cryptomeria japonica essential oil is quite safe for the mice that take high-dose essential oil do not show obvious toxic reaction.

此外，也在实验中发现，小鼠即使服用极高的柳杉精油，也无毒性反应的产生，证实使用柳杉精油有极高的安全性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。