GnuPG支持数据和通信的加密和签名，且以一个多功能的密钥管理系统和各种公钥目录的访问模块为特色。
GnuPG allows encrypting and signing your data and communication, and features a versatile key-management system and access modules for all kinds of public key directories.
您第一次连接到主机时，系统会询问您是否需要将远程主机公钥的副本保存在“已知主机”文件中(请参见清单5)。
The first time you connect to a host, the system asks if you want to keep a copy of the remote hosts public key in your 'known hosts' file (see Listing 5).
如果一个ID存在安全危险，那么应该通过创建一个新的ID生成一个新的公钥，在系统中锁定老的ID。
Should an ID become compromised, a new public key can be generated by the creation of a new ID, locking the old ID out of the system.
RSA公钥密码系统就是基于这种因数分解特性的。
RSA public-key cryptography is based on this property of factorization.
ssh服务器系统上的主机必须能够访问ssh客户机主机的公钥。
The host on the SSH server system must have access to the SSH client host's public key.
系统管理员为每个用户运行newkey命令，以便为希望使用DES身份验证的用户生成唯一的公钥和机密密钥。
The system administrator runs the newkey command for each user to generate unique public and secret keys for the user who wants to use DES authentication.
手表的右上方有一个分针秒针拨盘，底部左侧有一个为期五天的动力，左上方是“时光之钥”系统。
The display includes an hour/minute dial to the upper right, a 5-day power reserve display on the bottom left and the “key of time” system in the upper left.
幸运的是，ssh支持公钥或私钥身份验证和系统别名。
Luckily, SSH supports public or private key authentication and system aliases.
为了保证本系统的安全性，本论文结合基于口令和公钥的认证模式，设计了一种新型的身份认证方法。
To guarantee the system safe, this thesis designed a new kind of Identity certification method based on the mode of keywords and public-key certification.
在公钥密码系统中加密和解密算法是公开的，因此私钥存储管理成了公钥系统安全中薄弱的环节。
As the encryption algorithm and decryption algorithm are open to everyone, so the private key storage management becomes an insecure part in public key system.
本文讨论了一个智能电网系统的关键安全技术问题，包括公钥基础设施和可信计算。
This paper discusses key security technologies for a smart grid system, including public key infrastructures and trusted computing.
公开钥密码系统或非对称密码系统是实现和保障信息安全的一种重要方式。
The public key cryptosystem or the asymmetric cryptosystem is an important way to implement and ensure information security.
很多基本上是秘钥系统的加密软件包采用明钥加密，来传送秘密的会话密钥。
Many encryption packages that are basically secret-key systems use public-key encryption to communicate the secret session keys.
利用不定方程理论及中国剩余定理，我们设计了一类陷门背包公开钥密码系统，它们具有更好的安全性。
Using the theorem of linear Diophantine equations and the Chinese remainder theorem, we have constructed a class of trap-door knapsack public-key cryptosystems, which have a better security.
论文主要通过研究改进椭圆曲线公钥密码学，设计实现了一个基于椭圆曲线的混合加密系统。
By studying and improving on ECC mainly, this article deals with the design and encryption algorithm implementation of a hybrid cryptosystem based on elliptic curve.
本文详细地分析了乘除算法，并讨论了该算法在RSA公钥保密系统中的应用。
Analysis of MD algorithm and its application to RSA public-key cryptosystems are given in detail.
水印的嵌入和提取算法都是公开的，公钥系统取代了普通的水印密钥。
The algorithms for the watermark embedding and extracting are both open, and public key cryptosystem is utilized instead of common watermark key.
明钥系统采用一对数学上相关的序列，一个用于加密，另一个用于解密。
The public-key system uses a pair of mathematically related sequences, one for encryption and the other for decryption.
秘钥系统采用绝密的单一序列，同时对报文进行加密和解密。
The secret-key system USES a single, wholly secret sequence both to encrypt and to decrypt messages.
现在广泛使用的RSA公钥密码系统已很难满足未来人们对信息高安全性的需求。
RSA cryptosystem, a public-key cryptosystem that being used widely today, seems to have difficulty to meet the user's need of higher security.
文章还给出了一个采用RSA公钥系统的数字签名算法。
本系统的核心功能是对证书生命周期的管理，所以也将其称为公钥证书管理系统。
The key function of this system is management of certificate lifecycle, so also call it public key certificate management system.
分析了现有PKI结构的缺陷，并设计了一个改进的公钥证书系统。
We discuss the security of the PKI and propose an improved public key certificate system.
公钥密码系统是现代密码学最重要的研究课题之一。
Public key cryptosystem is one of the most important research subject in modern cryptography.
并且与设计的点乘硬件芯片一起构成了一种椭圆曲线公钥制密码系统。
And it works together with a new hardware chip to get a elliptic curve public-key cryptosystem.
方案不仅支持系统内人员和设备的密钥管理、身份认证及公钥密码运算，而且还对加密密钥进行管理。
This scheme not only supports secret key management and identity authentication of personnel and equipment, but also constructs secret key management center and manages encrypted key of the system.
目前的密钥系统无论是单钥体制还是公钥体制都建立在计算安全的模型上。
Both the symmetric key systems and public key systems currently used are based on the model of computational security.
椭圆曲线公钥系统可以缓解传统公钥系统中大计算复杂度的瓶颈问题。
Elliptic curve public key can be used to relax the bottleneck problem that is large computation in tradition public key system.
本文针对个人通信系统的需求，给出一种基于公钥体系的认证和密钥约定协议的实现方案。
In connection with the requirements on personal communications, an implementation of an authentication and key agreement protocol based on public key cryptosystem is given.
椭圆曲线密码是目前最具潜力的一类公钥密码系统。
Elliptic curve cryptosystems are one kind of the most promising public key cryptosystems.
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