目前，人们大量采用基于密码或数字证书的认证系统。
At present, people adopt a large amount of network authentication systems based on password or digital certificate.
针对数字电视有条件接收系统中的密钥分配，提出了一种基于椭圆曲线密码的分层访问控制密钥分配方案。
A key distribution scheme based on elliptic curve cryptography for Conditional Access System (cas) in Digital TV broadcast is proposed.
数字监控系统有安全密码，没有权限的人员将不能对监控系统进行查询，设置系统，删除文件等操作。
Digital monitoring system has password security, there is no authority on personnel will not be able to monitor system information, system Settings, delete files, and other operations.
1832年摩斯为电报系统勾画出了轮廓，1835年他研制出一套代表字母和数字的代码(摩斯密码)。
In 1832 Samuel F. B. Morse made sketches of ideas for a system of electric telegraphy, and in 1835 he developed a code to represent letters and Numbers (Morse code).
由于混沌理论和密码系统之间存在的自然联系，应用数字化混沌密码的想法得到了越来越多的关注。
Because of the intrinsic relation between chaotic systems and cryptosystems, the idea of using digital chaotic ciphers has attracted more and more attention.
提出一种基于数字化混沌密码系统的改进算法。
An improved encryption algorithm based on digital chaotic coding system is proposed.
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.
注：使用资金账号登陆委托下单系统时需输全12位资金帐号，交易密码建议修改为6位数字。
Note: the use of the funds entrusted to a single account landing systems need to lose 12 full-funding account, the transaction proposed to amend the code of 6 digits.
论文的研究工作将对数字化混沌密码的应用提供参考，并将为数字化视频加密传输与监控系统提供一种可行方案。
The study result will be a reference for digital chaotic cipher application and provide a feasible scheme for digital video encryption transmission and monitoring system.
二十世纪80年代以来，用数字化混沌系统构造密码系统受到了越来越多的关注。
Since the 1980s, more and more attentions have been given to constructing a cipher system with digital chaotic system.
二十世纪80年代以来，用数字化混沌系统构造密码系统受到了越来越多的关注。
Since the 1980s, more and more attentions have been given to constructing a cipher system with digital chaotic system.
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