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前些天在网上看到了一些关于OPENSSL的介绍,觉得很有意思,于是做了一个程序,基本实现了数字证书的制作、SSL安全通讯、加解密操作等功能,秉承OPENSSL开放的原则,拿出来共享,主要实现写在了两个DLL中, The first days on-line saw some about the OPENSSL introduction,
have thought very interestingly, thereupon has made a procedure,
basically has
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digital envelope program which is used to have a secure communication over the network.uses caesar cipher for public and RSA for private encryption
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能够与数字电视前端CA系统的irdeto系统通信修改节目授权,开通加密节目,请勿违法使用,自编程序。-CA to work with digital TV front-end system communication system irdeto authorized to modify programs, opening of encryption programs, do not illegally use, self program.
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Digital Envelope v1.0. The objective of this project is to provide the secure communication over the network using both public key and private key cryptosystems. This is double fold encryption technique. This uses DES algorithm to encrypt the message
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为了保证数字信号与所传信息的安全,防止无权用户干扰和窃密,一般应采取加密措施。数字信号比起模拟信号来易于加密,且效果也好,这是数字通信突’ 出的优点之一。国内的网间隔离安全设备(如防火墙等)产品较多,但服务器的安全和与之通信的客户的安全更为重要,服务器和客户端的软件应具有信息加解密、身份认证、访问控制、信息完整性和抗否认性验证等内容-To ensure the digital signal and the transmission of information security, right t
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Steganography is the art of hiding the fact that communication is taking place, by hiding information in other information. Many different carrier file formats can be used, but digital images are the most popular because of their frequency on the int
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本程序实现网络安全通信中的消息数字签名及认证,同时对通信消息进行RSA加密。程序可自主设定加密密钥及各种参数!对密码编程者很有帮助!-The program s secure communications network a message digital signatures and authentication, and RSA encryption of communication messages. Encryption program can be set independently
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第1章DSP2407概述,第2章系统配置和中断,第3章存储器和IO空间,第4章时钟和低功耗模式,第5章数字输入输出,第6章事件管理器,第7章模数转换ADC模块,第8章串行通信接口SCI ,第9章串行外设接口SPI,第10章CAN接口,第11章看门狗,第12章开发工具及开发环境,第13章程序设计-Chapter 2 System Configuration and interrupt Overview Chapter 1 DSP2407, memory and IO space on Chapte
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QPSK调制全称Quadrature Phase Shift Keying ,意为正交相移键控,是一种数字调制方式。数字信号的四相相移键控调制与解调技术以其灵活性和通用性而得到广泛的应用,符合未来数字通信技术发展的方向。随着移动通信技术的发展,以前在数字通信系统中采用FSK、ASK、PSK等调制方式,逐渐被许多优秀的调制技术所替代。-QPSK modulation partial Quadrature Phase Shift Keying, Quadrature Phase Shift Keyi
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Qpsk调制的基带数字通信系统通过awgn信道后的误码率-Qpsk modulated baseband digital communication system BER after channel through awgn
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串口通讯。数字时钟。图形显示。能见度仪器数据处理好代码。单位的项目-Serial communication. Digital clock. Graphic display. Visibility instrument data processing code. Unit project
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Orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for wideband digital communication, used in applications such as digital television and a
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在 Linux 中 FIFO 是一种进程之间的管道通信机制。Linux 支持完整的 FIFO通信 机制。 本实验内容,通过使用文件操作,仿真 FIFO(先进先出)结构以及生产者-消费者运行模型。
本实验中需要打开两个虚拟终端,分别运行生产者程序(producer)和消费者程序(customer)。此时两个进程同时对同一个文件进行读写操作。因为这个文件是临界资源,所以可以使用文件锁机制来保证两个进程对文件的访问都是原子操作。
先启动生产者进程,它负责创建仿真 FIFO 结构的文件(其实
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