伪造

We formalize a notion of security for proxy multi-signature and multi-proxy signature, i.e., existentially unforgeability under an adaptive chosen-message attack and an adaptive chosenwarrant attack.

本文给出了代理多重签名和多重代理签名的安全定义，即适应性选择消息攻击和适应性选择授权文件攻击下的不可存在性伪造，并建立了形式化安全模型。

This paper defines a strong security model for multi-recipient signcryption scheme in the random oracle model, which is semantically secure against adaptive chosen-ciphertext insider attack, existentially forgeable chosen-message attack and anonymous chosen-ciphertext insider attack. By analyzing, we point out that Li-Hu-Liu Multi-Recipient Signcryption Scheme is insecure against the adaptive and anonymous chosen-ciphertext insider attacks.

摘要在随机预言模型下定义了一个多接收者签密方案的强安全性模型，该模型满足适应性选择密文内部攻击安全性、选择消息抗存在性伪造和密文匿名安全性；通过分析指出， Li、Hu和Liu等人提出的多接收者签密方案，不具有适应性选择密文内部攻击安全性和密文匿名性，并给出所定义强安全性模型中的攻击方法；随后提出改进方案，该方案在强安全模型中证明是安全的。

With the development of our society, The traditional security systems which based mainly on token or password, such as key, password, ID card and even IC card, have fallen behind the needs of economic activity and social security, This is because that they would be forgetable, falsifiable, stolen or decodable.

随着社会的发展，传统的基于信物或口令的安全系统，如钥匙、密码、身份证件，甚至IC卡等，由于它们具有可假冒、可伪造、可盗用、可破译的弱点，已不能完全满足现代社会经济活动和社会安全防范的需要。

Last Thursday, the committee of university exports said the two remaining stem cell colonies also were faultily reported.

上周四，大学的专家委员会表示报告中余下的干细胞群也是伪造的。

The police have arrested eight persons who make and sell fause entrance paper to the universities.

警察在本月初逮捕了8名伪造和贩卖假大学录取通知书的人。

It is a significant task that how to transfer data in security and to prevent somebody from fabricating and filching them.

如何在网络上安全地传递信息，防止意外的伪造或窃取，已经成为一项非常重要并具有现实意义的研究课题。

Unfortunately,in this work, security analysis was given to the scheme and results showed that the scheme was forgeable and repudiative.

通过对Zhou的方案进行安全分析，指出该方案具有伪造性和否认性，并给出相应的攻击方法。

We show that it is secure against existential forgeable on adaptively chosen message and ID attack under the random oracle.

在随机预言机模型下，证明了其在适应性选择消息攻击及身份攻击下都能抵抗存在伪造。

The police suspected her of fronting for a gang of forgers.

警察怀疑她是一帮伪造者的掩护人。

However, during a meeting with Tennessee adoption authorities, Gant is quoted as saying the forgeries went on for years, and were "widespread."

然而，Grant在和田纳西州领养机构面谈的时候，丫竟然说，这些伪造文件都存在好多年了，就是一潜规则。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。