这本书包括了密码学和水印学竞争在内的各方面技术，这本书的内容覆盖知识范围广博，书中还有经过整理的代码，源代码等。...

base64解码编码c++的，我找了好久才找到的-decoding base64 encoding c, and I look for a long time to find the

this about cryptography. takes text as input and decrypt it and then aagin in plane text-this is about cryptography. takes text as input and decrypt it and then aagin in plane text

C++写的椭圆曲线加密算法库源码-source code of ECC in C++

Inroduce the algorithm of RSA.

关于数字水印嵌入时处理水印的源代码，采用猫脸变换对水印图像进行预处理 -Be dealt with on the digital watermark embedding watermark source code, using a cat face on the watermark image pre-processing transformation

des数据加密标准算法描述-des data encryption standard algorithm description

VHDL implementation of the twofish cipher for 128,192 and 256 bit keys. The implementation is in library-like form All needed components up to, including the round/key schedule circuits are implemented, giving the flexibility to be combined in different architectures (iterative, rolled out/pipelined etc). Manual in English is included with more details about how to use the components and/or how to optimize some of them. All testbenches are provided (tables, variable key/text, ECB/CBC monte carlo) for 128, 192 and 256 bit key sizes, along with their respective vector files.-VHDL implementation of the twofish cipher for 128,192 and 256 bit keys. The implementation is in library-like form All needed components up to, including the round/key schedule circuits are implemented, giving the flexibility to be combined in different architectures (iterative, rolled out/pipelined etc). Manual in English is included with more details about how to use the components and/or how to optimize some

微软cryptapi文档-Microsoft cryptapi document

ceaser转换文本加密技术-converting text encryption technology

使用DES3进行加密，包含全部delphi源代码！-DES3 use of encryption, including all delphi source code!