[加密解密] pik
由于电子商务广泛采用公开密钥技术，职能部门有必要对公钥加以管理。本文简要介绍了基于PKI的密钥托管技术及密钥托管代理的概念，分析了密钥托管的步骤，以及政府部门在密钥托管代理的帮助下强制访问信息的过程。
关键词：密钥托管 证书授权认证 公开密钥 公钥基础设施 托管证书
网络的安全问题得到人们的日益重视。网络面临的威胁五花八门：内部窃密和破坏，截收，非法访问，破坏信息的完整性，冒充，破坏系统的可用性，重演，抵赖等。于是公钥基础设施（Public Key Infrastructure，PKI）应运而生。PKI是电子商务和其它信息系统的安全基础，用来建立不同实体间的"信任"关系。它的基础是加密技术，核心是证书服务。用户使用由证书授权认证中心（Certificate Authority，CA）签发的数字证书，结合加密技术，可以保证通信内
widespread adoption of e-commerce as public-key technology, the functional departments need to be a public key management. This paper describes the PKI-based technology and key escrow key escrow agent concept, the key escrow analysis of the steps, as well as government departments in key escrow agent with the help of compulsory process for accessing information. Key words : key escrow certificates accredited public key public key infrastructure certificates care network security issues to receive increased attention. Faced with the threat of network variety : internal theft and destruction, interception, and illegal visit to undermine the integrity of the information, faked, breaking the system availability, repetition and denial, etc.. So the public key infrastructure (Public Key Infrastr (2006-03-15, Visual C++, 612KB, 下载106次)
[加密解密] zuc
祖冲之算法集是由我国学者自主设计的加密和完整性算法，包括祖冲之算法、加密算法128-EEA3和完整性算法128-EIA3，已经被国际组织3GPP推荐为4G无线通信的第三套国际加密和完整性标准的侯选算法。由中国科学院软件研究所信息安全国家重点实验室和中国科学院研究生院DCS中心联合主办的《第一届祖冲之算法国际研讨会》将于2010年12月2至3在北京召开。本次国际研讨会对于加强祖冲之算法研究分析成果的国内和国际交流，扩大祖冲之算法的公开平评估范围，加强祖冲之算法的安全性评估力度，进而推进祖冲之算法4G通信国际加密标准的进度具有重要的现实意义。
ZUC algorithm (2012-02-10, C/C++, 2KB, 下载79次)
[加密解密] CA
CA验证中心，openssl编程，RSA签名。
CA certificate (2013-02-20, Visual C++, 470KB, 下载51次)
[加密解密] DES Sample
美国加密中心公布的DES程序
American Center for the encryption process DES (2004-11-26, Visual Basic, 2KB, 下载42次)
[加密解密] KeyTest
在全国社会保险IC卡联合试点中，各级密钥管理中心利用密钥管理系统来实现密钥的安全管理。密钥管理系统采用3DES加密算法，采用全国密钥管理总中心、二级密钥管理中心（如商业社会保险总行）、成员社会保险中心三级管理体制，安全共享公共主密钥的，实现卡片互通、机具共享
National Social Insurance IC card in the joint trial, the levels of key management center using key management system to achieve key security management. Key management system uses the 3DES encryption algorithm, using the total national key management center, two key management center (such as commercial social insurance head office), three members of the management system of social insurance center, security, share a common master key to achieve card exchange, sharing of equipment (2011-06-30, Visual C++, 192KB, 下载38次)
[加密解密] CFCA
CFCA认证中心javacard CA源码，已通过验证，包括Keypare生成，加解密/签名/验签
CFCA javacard CA sourcecode ，including Keypare Generation/encryption/decryption/sign/verify (2012-09-25, Java, 8KB, 下载31次)
[加密解密] RSA-Symmetric-key
完成基于非对称密码技术的对称密钥分配工作
说明：
（1）在完成上述基于公钥证书的非对称密钥分配工作的基础上，根据教材上基于非对称密码技术的对称密钥分配方案，完成对称密钥Ks的分配工作。
（2）A用Ks对一图象文件（test_pic.bmp)进行加密并发送给B，B收到后解密，对比原图象看是否一致，并记录整个加密/解密的所用时间T2；
（3）对比T1和T2；
要求：
（1）JAVA语言编程实现，基于RSA完成非对称密码技术的加/解密，基于DES完成对称密码技术的加/解密（JAVA有库函数支持）；
（2）通信内容为一图象文件（test_pic.bmp)；
（3）基于网络完成密钥分配工作（作为通信的双方A、B应部署于两台主机上）；
（4）所分配的对称密钥皆为一次一密，随机产生；
（5）具体密钥分配过程请以课本中基于非对称密码技术的对称密钥分配方案为参考，完成从步骤1到步骤4的全过程；
Completed based on asymmetric cryptography symmetric key distribution work
Description:
( 1 ) Upon completion of the above-mentioned asymmetric public key certificate-based key distribution based on the work , according to the materials on asymmetric cryptography-based symmetric key distribution scheme , the completion of the distribution of symmetric key Ks work .
(2) A use of an image file Ks (test_pic.bmp) is encrypted and sent to B, B to decrypt after receipt , compared to see if the same original image , and records the encryption/decryption used time T2
( 3 ) comparing T1 and T2
Requirements:
(1) JAVA programming language, based on the RSA asymmetric cryptographic techniques to complete encryption/decryption , based on the DES symmetric cryptographic techniques to complete the encryption/decryption (JAVA library functions are supported )
( 2) The content of the communication is an image file (test_pic.bmp)
( 3 ) complete network-based key distribution job ( as the (2013-11-05, Java, 15KB, 下载29次)
[加密解密] Centralized-symmetric-key
完成集中式对称密钥的分配工作
说明：作为通讯的双方A和B，都已经分别和KDC拥有会话密钥Ka和Kb，但A、B之间事先没有保密通道，需要依赖KDC为它们的会话分配临时密钥Ks。在完成会话密钥Ks的分配后，A利用Ks对特定文件（test-1.txt）进行加密，并发送给B；B利用Ks对密文进行解密，并对比解密后的明文信息同原来的文件是否一致。
要求：
（1）JAVA语言编程实现，基于DES完成对称密码技术的加/解密（JAVA有库函数支持）；
（2）通信内容为一文本文件（test-1.txt）；
（3）基于网络完成密钥分配工作（作为通信的双方A、B应部署于两台主机上，KDC可以部署在其中一台主机上或第三台主机上）；
（4）所分配的对称密钥皆为一次一密，随机产生；
（5）具体密钥分配过程请以课本中基于KDC的集中式密钥分配方案为参考，完成从步骤1到步骤5的全过程；
Complete centralized allocation symmetric key
Description: As a communication between the parties A and B, respectively, and the KDC already has a session key Ka and Kb, but the A, B no secret passage between the advance, they need to rely on the KDC allocate temporary session key Ks. Upon completion of the session key Ks allocation, A Ks on the use of a specific file (test-1.txt) is encrypted and sent to B B use Ks decrypt the ciphertext, and compare the decrypted plaintext message with the original files are consistent.
Requirements:
(1) JAVA programming language, based on the DES symmetric cryptographic techniques to complete the encryption/decryption (JAVA library functions are supported)
(2) the content of communications as a text file (test-1.txt)
(3) complete network-based key distribution job (as the communication between the parties A, B should be deployed on both hosts, KDC can be deployed on one host or a third host)
(4) are allocated once a secret symmetric key ra (2013-11-05, Java, 4KB, 下载29次)
[加密解密] miyaoguanlizhongxin
密钥的管理中心，对加密解密密钥进行统一管理。
Key management center for encryption and decryption keys for unified management. (2008-06-11, Visual C++, 142KB, 下载26次)
[加密解密] 20060428
提出了一个新的强壮的密钥管理方案。该方案利用秘钥生成中心（KGC）与秘钥因子组合中心（KGCC）共同完成秘钥托管与秘钥的生成
Proposed a new strong key management program. The program draws on secret key generation center (KGC) and the secret key factors and Fabrication Center (KGCC) co-hosted with the secret key to the completion of secret key generation (2010-03-10, Visual C++, 190KB, 下载25次)
[加密解密] ecdsa
基于椭圆曲线密码体制的本地实现的CA(证书授权中心)和数字证书签发系统
Local CA and digital signature system base on ECC (2013-06-13, Java, 355KB, 下载25次)
[加密解密] UploadData(1)
用户侧并网光伏电站在线监测系统之数据上传系统，
解决网络字节序转换、CRC校验、AES加密、中文UTF-8编码等技术，
采用多线程解决在主动发送信息的同时监听数据中心服务器其他指令。
采用开发环境vc++6.0 + mysql,实现用户SN、密码、电站信息、
设备信息等全部在数据库中配置，在光伏电站项目信息改变或变更项目，不用更改系统源码，直接在数据库中更改相关信息就行了。
User side and network monitoring system of photovoltaic power plant data upload system to solve the network byte order conversion, CRC checksum, AES encryption, Chinese UTF-8 encoding techniques, the use of multi-threading to solve the initiative to send information at the same time monitoring and data center servers other instructions. Use development environment vc++6.0+ mysql, implement user SN, password, power information, device information, and all in the database configuration information changes in the PV power plant project or change the project, do not change the system source code, directly change the information in the database on the line the. (2013-07-30, Visual C++, 2175KB, 下载22次)
[加密解密] PKICA-Certification
基于C语言的PKICA认证中心的设计，一种比较可靠的网络信息安全体系
C language-based design PKICA Certification (2011-04-23, Visual C++, 294KB, 下载6次)
[加密解密] LUCKY
根据达芬奇密码编写的算法程序，用以预测中奖彩票号码，纯属娱乐。
According to The Da Vinci Code written algorithm program to predict the winning lottery numbers, purely entertainment. (2014-09-26, C/C++, 4494KB, 下载6次)
[加密解密] CorporateNewsApp-v1.0.1.0
sharepoint 公司新闻，可以做为sharepoint2013应用使用
shaerpoint news (2014-07-08, C#, 810KB, 下载4次)
[加密解密] eTopEIMS
1、eTopEIMS是一个包括新闻发布、产品发布、成功案例发布、招聘发布、在线留言、在线应聘、数据备份、数据恢复等功能的企业信息管理系统。 2、新闻、产品等信息的发布、修改均采用kindeditor编辑系统。 3、管理员密码添加系统常量,并经过md5加密。
1, eTopEIMS is a news release, product release, case release, recruitment, online message, online candidates, data backup, data recovery and other functions of enterprise information management system. 2, news, products and other information release, modify the system are used kindeditor editing. 3, the administrator password to add system constants, and after md5 encryption. (2016-11-02, PHP, 727KB, 下载2次)
[加密解密] eTopEIMS
1、eTopEIMS是一个包括新闻发布、产品发布、成功案例发布、招聘发布、在线留言、在线应聘、数据备份、数据恢复等功能的企业信息管理系统。
2、新闻、产品等信息的发布、修改均采用kindeditor编辑系统。
3、管理员密码添加系统常量,并经过md5加密。
1, eTopEIMS is a news release, product release, successful case release, recruitment, online message, online application, data backup, data recovery and other functions of the enterprise information management system.
2, news, products, such as the release of information, modify the use of kindeditor editing system.
3, the administrator password to add system constants, and through the MD5 encryption. (2016-04-15, PHP, 725KB, 下载2次)
[加密解密] KDC
kdc密钥分发中心kdc密钥分发中心kdc密钥分发中心kdc密钥分发中心kdc密钥分发中心
KDC key distribution centerKDC key distribution centerKDC key distribution centerKDC key distribution centerKDC key distribution center (2017-03-29, Java, 17KB, 下载1次)
[加密解密] mima
ABAP开发关于获取密码字段的程序，存属娱乐，希望爱好者自选参考
ABAP development program for acquiring password field, deposit belongs to the entertainment, wish lovers are optional (2013-09-06, Others, 9KB, 下载1次)
[加密解密] xca-gm
证书管理中心 | 改自XCA | 支持国密 SM2 SM3
Certificate Management Center | changed from XCA | support the national security SM2 SM3 (2020-03-24, C++, 1120KB, 下载0次)