演示安全令牌已授权应用的一种方式是，添加采用相关联密钥（来自于占有证据令牌）的数字签名。
One way to demonstrate authorized use of a security token is to include a digital signature using the associated secret key (from a proof-of-possession token).
接下来，我们需要为Web服务安全性签名和加密创建密钥和证书。
Next we need to create the keys and certificates for the Web services security signatures and encryption.
密码学是安全技术的核心，其中的加密解密、数字签名、密钥交换等技术是起到保障作用的重要机制。
Cryptography is the core of security technologies, and encryption, decryption, digital signature, key exchange etc. are the important mechanisms to guarantee the safety.
通过对停电申请、调度任务票、交接班记录等，以及密钥等的管理以及数字签名在系统中的实现，使得本系统成为一个高效、完善、安全的管理信息系统。
The management of power-cut application, dispatching task note and secret key etc and the application of digital signature can ensure that the system is an efficient, secure, and powerful MIS.
当前物流信息系统中存在着XML数据安全的问题，根据XML加密、XML数字签名和XML密钥管理规范服务（XKMS）三种核心标准，在数据交换中确保XML数据的安全。
The security problem of XML data existed in logistic information systems. The application of the XML encryption, XML data signature and XKMS insure the security of logistic information.
为了抵抗原始签名人的伪造攻击，改进了代理签名密钥的生成过程，并对改进的方案进行了安全性分析。
To eliminate the original signers forgery attacks, a modification of the proxy key generation stage is proposed. Security analysis of the improved scheme is also presented.
椭圆曲线算法只需要较小长度的密钥就可以获得较高的安全性，因此非常适合用智能卡来实现椭圆曲线数字签名算法。
Elliptic curve digital signature arithmetic can achieve high security using a shorten key, so it is very suitable to realize this arithmetic on smart card.
与RSA密码体制相比，在密钥长度相同的情况下，椭圆曲线密码体制安全强度更高，因此基于椭圆曲线密码体制的数字签名方案得到了广泛的关注。
Compared to RSA, with keys of the same length, Elliptic Curve Cryptography (ECC) offers more security strength, thus ECC-based digital signature scheme attracts the most attention.
该方案将密钥更新算法应用在原始签名者计算过程中，更有效增强了代理签名密钥的安全性。
In this scheme, the key updating algorithm is used by the original signer, so the security of the proxy signature key is promoted to a higher level.
本文主要分析了椭圆曲线公钥密码体制的安全椭圆曲线的实现、密钥的生成、密钥交换协议和数字签名等内容。
The paper mainly introduces some contents of ECC, such as implement of secure elliptic curve, generation of key, key exchanged protocol and digital signature.
该方案是基于椭圆曲线，采用一次一密签名构造的，具有安全性高，速度快，密钥量小，便于实现等优点。
This scheme that is constructed based on elliptic curve with one-time pair of keys has the merits of security, efficiency, smaller key and easy realization.
因此如何在现有的密码体制和数字签名体制的基础上，构建一个更好的方案保护和管理密钥，是决定现实中系统的安全性的关键。
So it becomes a key problem how to build a better security protection scheme and key management system by making use of the cryptography algorithm in practice.
作为环签名基础的公钥加密体制，存在着密钥泄露的问题，对于环签名的安全性来说是致命的。
It is a crux for security of ring signature that exposure of secret keys can be a devastating attack on cryptosystem which ring signature base on.
该方案没有密钥的托管问题，也不需要管理证书，并且满足代理环签名方案所有的安全性要求。
This scheme solves all the problems of key escrow and certificate management, and satisfies the security requirements of a proxy ring signature scheme.
YBX代理多重签名方案是不安全的，攻击者在不知道原始签名者密钥的情况下，能够伪造代理签名密钥，假冒代理签名者对文件进行签名。
The proxy multi-signature scheme called YBX is not safe. An attacker can forge the key pair of proxy signature without the original private key, and disguise himself as proxy to sign document.
方案的前向安全性保证了签名密钥可定期更新，即使当前时间段的签名密钥被泄漏，敌手也不能伪造先前的签名。
Forward security of the scheme means that even if the secret key of current time period is compromised, some security remains. It is impossible to forge the signature relating to the past.
智能卡能够存储和解释私人签名密钥和证书，实现数字签名和认证，有效的保证信息的安全。
Smart Card can effectively protect the information security because it can store and explain the private signature key and certificate, realize digital signature and authentication.
该方案利用前向安全数字签名理论和技术，保证了一个PKI系统在CA签名密钥泄露的情况下损失最小；在CA需要更换签名密钥时效率最高；
The scheme utilizes the theory and technology of forward-secure digital signature to guarantee that the loss is the lowest in the case that CA's signing secret key is compromised;
该方案利用前向安全数字签名理论和技术，保证了一个PKI系统在CA签名密钥泄露的情况下损失最小；在CA需要更换签名密钥时效率最高；
The scheme utilizes the theory and technology of forward-secure digital signature to guarantee that the loss is the lowest in the case that CA's signing secret key is compromised;
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