傅里叶快速算法，DLL可有其他程序调用很好的呀，免费下载，不需账号即可。多多支持。-Fast Fourier algorithm, DLL can call other procedures are very good ah, the free download, can not account. For their support.

This program can simulate 2*2 MIMO-LDPC base-band systems. ---inv_GF2.m ---ldpc_decode.m ---MIMO_LDPC.m ---MIMO-LDPC_BER.jpg

用C++简单地实现了AES算法，可以实现128bits的字符串加密、解密，密码为128bits，具有很好的扩展性，可很容易地扩展为文件加密-Simply achieved with C AES algorithm, can achieve 128bits string encryption, decryption, password is 128bits, with good Scalability can be easily extended to file encryption

RSA算法,实现完整。将两个大素数相乘十分容易，但那时想要对其乘积进行因式分解却极其困难，因此可以将乘积公开作为加密密钥。-RSA algorithm based on a very simple fact: the number multiplies two large prime number is very easy, but then to factorization of its product is extremely difficult, so it can be disclose