joined audio watermarking algorithm, using Matlab to achieve

MPEG 解码源码　。。 。。 。。慎重-的

计算机安全的一本很好的书,其中有关安全密要等重要的内容,是一本不错的书-computer security,an introduction to computer security,you can learn much from it , a very good book

3重DES算法是加密标准的过渡算法，现阶段在各个加密领域仍有较广泛的应用，本文件用c语言实现了3重DES的加密算法，包含了加解密过程的所有算法，对学习信息安全的人员有较好的参考价值！

对于这个问题的实现、刚刚给过一个程序，突然想起另外一种简单一些的方法，一并给出[笔者长期从事移动通信系统的无线链路调制与解调、物理层实现方面的工作。在移动通信GSM系统中，我们进行语音或者业务信道解调时，都会遇到CRC的求解。通常在硬件DSP实现时，特别是40位CRC求解时候，由于生成多项式有41项，DSP最大一次能处理40位，所以使用单个寄存器会遇到一些困难，那么以下这个程序将会解决这一困难（这是针对定点DSP、C55xx的编程实现方法）。]： -For the realization of this issue, just to have a program, suddenly reminded of another simpler way to be given [the author has long been engaged in mobile communication system modulation and demodulation of wireless links, the physical layer to achieve work. GSM in the mobile communications system, we have a voice or channel demodulation operations, it will encounter the solution of CRC. DSP hardware usually realize, especially when solving the 40 CRC, as the generation polynomial has 41, DSP can handle the largest 40, so using a single register may encounter some difficulties, then following this process will solve this One difficulty (which is for fixed-point DSP, C55xx realize programming methods). ]:

DES( Data Encryption Standard)算法，于1977年得到美国政府的正式许可，是一种用56位密钥来加密64位数据的方法。DES算法以被应用于许多需要安全加密的场合。-DES (Data Encryption Standard) algorithm, in 1977 the United States government"s official permission, is a key 56 to 64-bit data encryption methods. DES algorithm to be applied to many needs security encryption occasions.

Slides on IP Multimedia Subsystems

c51-----des --- 可以完成加密解密等功能，测试通过没问题-c51----- des------ to be completed, such as encryption and decryption functions, the test No problem! ! !

cox方法展频水印matlab源码，对bitmap图像隐藏信息-frequency watermarking method Show Matlab source of bitmap images for hidden messages

Proguard是强大的Java字节码混淆器，含有源代码，可以根据自己需求修改编译。满足自身需求。 也可以作为爱好者自学的好材料。

MD5 HASH摘要算法，采用C语言开发-MD5 HASH digest algorithm using C language development