实现base64编码

jcrypt加密，看看有没有人需要，分享给大家-jcrypt encryption, see no need for everyone to share

本软件设计一共分为两个模块：打包加密模块和发行模块。Ø  打包加密模块：实现视频文件的打包加密，音频文件的打包，CPL文件生成，PKL文件生成和创建一个本地资产映射文件MAP.asmap(管理有关影片及密钥相关信息用于发行)。Ø  发行模块：读取MAP.asmap中内容，根据encrypt一项判断视频是否加密。若加密根据MAP.asmap中相关内容和要发行的机器证书文件生成KDM文件和ASSETMAP，若未加密则只生成ASSETMAP文件。

Lock Manage 是一个功能比较全面的加密软件。 它具有多种加密方案：如文件口令加密，文件反拷贝加密，软硬盘加密，安装加密，文本加密，批处理加密等等。系统是由Ｃ和汇编写成，可从外部链接于主模块。可单独编译，单独调试。可执行ＥＸＥ／ＣＯＭ程序加密模块已经过长时间的测试分析，其工作性能己十分稳定。可移植性与兼容性很好。另外，代码实现了ＣＳ，ＤＳ不换技术，使其ＳＨＥＬＬ性能难以被ＤＥＢＵＧ识别。其内部密码采用单向不可逆变换，基本实现了不可解，原因在于四个随机密钥只能用穷举法找出。这种可靠原四密钥单向加密技术渗透到了后面的几个程序中。对于反拷贝加密，采用了随机的软指纹生成技术，可生成唯一密钥母盘。硬盘反拷贝在硬盘里产生四密钥，在非母机上程序运行错误。反反汇编可将整个文件的内容加密变换。反跟踪采用了目前十余种通用的反跟踪算法。可抵抗ＤＥＢＵＧ系列软件。批处理和文本加密十分方便，但保密性不太强，只能用于一般用户。-Lock function is a more comprehensive encryption software. It has a wide variety of encryption programs : documents such as password encryption, anti-copy document encryption, hard disk encryption software, the installation of encryption, encrypted text, etc. batch encryption. C system is written and compiled, from the external links in the main module. Separately compiler, debugger alone. EXE executable/COM procedures encryption module has been tested over a long period of analysis, their performance has very stable. Good portability and compatibility. In addition, the implementatio

 What is EAQUAL?     The intention of EAQUAL is to provide a objective quality measure for coded/ decoded audio      files. Currently the code is based on the ITU-R recommendation BS.1387.      EAQUAL will not supersede listening tests, but can be a useful tool to support listening tests,      categorize different coding algorithms and find bugs in algorithms. The more input files are      taken for the analysis, the better the results of EAQUAL will fit the reality.

this a vhdl program for crc encoder and decoder-this is a vhdl program for crc encoder and decoder

CRC校验中叠加和校验方法的生成，校验等功能函数源码。-CRC verification and validation methods of superposition generation, calibration source, such as performance function.

很 强 大 的 加 密 系 统。初 学 加 解 密者 好 处 大! -Very strong encryption system. Learning the benefits of encryption and decryption are great!

DES 加密系统的 C 语言源代码，实现了简单的DES加密系统。-DES Encryption System C language source code, a simple realization DES encryption system.

采用bin加密的经典算法。-bin encryption using the classical algorithm.

base64的解码Ｃ语言实现-base64 decoding C Language