The quantum encryption skill based on physical principle of quantum has already been proved it is the effective means that the key distributes safely in the secret communication.
基于量子物理原理的量子密码术已被证明是保密通信中密钥安全分配的有效手段。
In this paper we firstly discuss the general concepts of compter security and cryptology, and then describe the mostly used modern encryption methods and technologies. We detail the advantages and disadvantages of symmetric algorithm, public-key algorithm and one-way hash function. At last we put forward a new block cipher - permutation code, and describe the secret hash digital signature and online electronic contracting with the trusted third party system.
本文首先讨论计算机安全和密码学的一般概念，然后介绍现代加密手段常用的方法和技术，详细讨论了对称加密方法、公开密钥加密方法和单向散列加密方法的优点和不足，进而提出了一种新型的分组加密算法—排列码加密算法，并在此基础上实现了保密散列数字签名算法和有可信第三方参与的网上电子签约。
Knapsack public-key cryptosystem is characterized by fast encryption and decryption. Based on a new knapsack algorithm, a publicly verifiable secret sharing schemes is proposed in this paper.
利|}}j新的背包算法，提m了一个可公开验证的动态秘分阜力`窠，泼秘律}江窠在保持各成员子秘密不变的情况下可以分享多个秘密，并且每个参与f1f以对I t 的f秘密及其他成员提供的信息进行验证；但能有效阻止敌手窃取秘密信息，电能有效地防II`f～琊成员之闸的互相欺i乍。
An encryption methodology in which the encryptor and decryptor use the same key, which must be kept secret.
一种加密方法，在私钥加密系统中，加密和解密过程使用相同的密钥，该密钥必须严格保密。
The design includes many new technologies in data exchange and data security, they are: Converting non-XML data to XML in order to apply the XML security technology to more data types; Using the technology of XKMS and PKI to manage the public key in order to overcome the shortage of complexity and difficulty in using PKI and improve the efficiency of the public key management; Using Diffe-Hellman algorithm combining with the public key technology to exchange secret key in order to furthest increase the security of the key; Using the technology of XML digital signature algorithm to ensure the integrity, message authentication and signer authentication of the data; Using the technology of XML encryption to ensure confidentiality of the data; Defining delegable access rules on the structure and content of the XML documents to provide fine-grained access control. According to the XML security framework, a XML security library is designed and implemented.
在对XML及其安全技术主要包括XML加密技术、XML数字签名、公钥管理、密钥产生和交换进行研究的基础上，结合传统密码技术和XML安全技术提出了一种基于XML的数据安全模型，模型中包含了目前网络数据交换和安全领域的一系列最新技术，主要有：将非XML格式数据转换为XML格式数据的方法，以保证现有的大部分网络数据能够应用XML安全技术；使用XML公钥管理技术结合PKI技术管理公钥，以克服PKI技术实施和部署复杂、难度大等问题，提高公钥管理的效率；使用Diffie-Hellman算法结合公钥技术交换密钥，以最大限度保证密钥的安全；使用XML数字签名技术保证数据的完整性、不可否认性和发送方身份认证；使用XML加密技术保证数据的机密性；根据XML文档的内容和结构定义授权访问规则进行良好的访问控制。
Thirdly, Instead of using one-dimensional coupled map lattices model, we have constructed a combinable model, which is consisted of an one-dimensional chain, a two-dimensional netting grid and another one-dimensional chain as the drive-response system. So both the system`s complexity for secret key streams and the efficiency for encryption have been increased.
第三，改进了使用单纯的一维耦合格子模型，而采用一维链加二维网格再加上一维链的组合模型来构造驱动和响应系统，增强密钥序列复杂度的同时也提高了系统的加密效率。
According to the real encryption result, this algorithm has outstanding advantages such as great secret key room, highly complexity signal and good random property, which is suitable for applying on the platform of hardware.
仿真分析和加密结果表明，该算法具有密钥空间大，信号复杂度高，加密图像随机特性好等优点，适合在硬件加密平台上进行图像加密。
Receivers use a combination of the sender's public key and their own private encryption key to unlock the secret code for that message and decipher it.
接收者利用发送者的公开密钥和他们自己的秘密密钥的结合，解开该报文的秘密编码，并解密之。
SCPS-SP protocol standard, authentication protocol draft, encryption protocol draft and secret key management draft were analyzed by using formalization analysis method, and security features and its potential loopholes were pointed out. 4.
应用形式化分析方法分析了CCSDS发布的SCPS-SP协议标准、认证协议草案、加密协议草案和密钥管理方案草案和安全性，指出其安全特性和存在隐患。
To start with, cryptography is introduced from encryption and decryption, symmetric secret key encryption, public key encryption and password analysis.
首先从加密和解密、对称密钥加密、公钥加密、密码分析等方面对密码学进行了简单的介绍。
PKI system offers services of public key encryption and digital signature. It's composed of CA, numeric certificate library, secret key backup and restore system, numeric certificate withdraw system and API.
PKI是基于公钥加密体制的提供公钥加密和数字签名服务的系统或平台，主要由认证中心（CA）、数字证书库、密钥备份及恢复系统、证书撤销处理系统和应用程序接口（API）组成。
Rearrangement Encryption Based on GHZ State for Quantum Key Distribution Protocal and the Security of a Quantum Secret Sharing
基于GHZ态的重排加密量子密钥分配和一种量子秘密共享协议的安全性
The experimental results show that the identity authentication which integrated iris identify with the secret key encryption technique can effectively control the resource access on WWW in security and can effectively reduce the probability which being attacked.
实际测试的结果表明，虹膜识别与网页结合的身份认证，能够达到控制网站上资源存取的目的，较大程度地减小了攻击者破解的可能性。
Analysis and design of a roll secret key encryption algorithm
滚动式密钥新型加密算法的分析与设计
Research on Dynamical Secret Key Building Algorithm in Database Encryption
数据库加密中动态密钥生成算法研究
The secret key of the encryption algorithm is the minutiae extracted from fingerprint.
该加密算法的密钥是采用指纹识别技术所提取的指纹特征信息。
Image encryption based on truncated baker transformation is done; Encrypted image and key are transmitted from public passage and secret passage independently. Decrypted algorithm is opposite to the encrypted algorithm.
然后采用截断Baker变换对图像进行加密运算，将加密后的图像和密钥分别从公共通道和密钥通道传输，解密算法是加密算法的逆过程。这便是不作为犯罪因果关系的真相。
The informa tion of encryption depends on safety of the secret key, but not the safety of algorithm.
加密信息的安全性取决于密钥的安全性，与算法的安全性无关，即由密文和加解密算法不可能得到明文。
Meanwhile, in this system, it analyzes the work mode of algorithm and proposes a secret key protection scheme for document encryption.
同时，在该系统中分析了算法的工作模式，提出了一种用于文档加密的密钥保护方案。
This element's content gives a secret key in encrypted form, using the server's public key to do the encryption.
这个元素的内容提供了一个加密了的秘密密匙，使用了服务器的公开密匙执行加密。