DES加密C代码带执行程序-DES encryption with C code enforcement procedures

SHa1,经典加密算法,时代之骄傲-SHa1, classical encryption algorithm, proud of the times

Base64 加密算法（Author 蒋柏良 Jerry Jiang)-* * DESCRIPTION * Base64 processes input in 24bit chunks by converting each chunk into 4 * bytes of output. It does so by splitting input into four 6bit groups and * using these as indexes in the following substitution table- * const char base64_map[] = * "ABCDEFGHIJKLMNOPQRSTUVWXYZ" * "abcdefghijklmnopqrstuvwxyz" * "0123456789+/" * If an input is not a multiple of 3 bytes, it s padded with zeros. In * this case the output bytes that consist entirely of the pad data are * replaced with = . * * Example * An input of 0x00 0x45 0xF2 is equivalent to 00000000 01000101 11110010 * bit sequence, which s then split into 000000 000100 010111 110010 * and these are substituted to produce the following base64 encoding * A E X y * * RETURN VALUE * b64_length() should return output length for the input of len bytes. * b64_encode() should encode len bytes from src int

关于NSEA算法的一个小程序-NSEA algorithm on a small program

对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). according to this embedding binary image and resume its embedded watermark from the watermark signal by the Blind detection

UNICODE编码介绍-coding introduced UNICODE

Galois域乘法器的Verilog源码 广泛用于信道编码、计算机代数及椭圆曲线加密等-Galois field multipliers are widely used in the Verilog source channel coding, computer algebra and elliptic curve encryption

aes 算法的DEMO-Aes algorithm DEMO

一个sha 哈希密码支撑算法系列的程序 包括了sha1,sha256,sha384和sha512算法-a password support Hash Algorithm series of procedures including sha1, SHA256, SHA384 and SHA512 Algorithm

提供rsa、 des、 md5等加密和hash算法-apply encryption and hash algorithm of RSA, DES and MD5 etc.