package com.xaccp.util;
public class MD5 {
/* 下面这些S11-S44实际上是一个4*4的矩阵,在原始的C实现中是用#define 实现的,
这里把它们实现成为static final是表示了只读,切能在同一个进程空间内的多个
Instance间共享*/
static final int S11 = 7;
static final int S12 = 12;
static final int S13 = 17;
static final int S14 = 22;
static final int S21 = 5;
static final int S22 = 9;
static final int S23 = 14;
static final int S24 = 20;
static final int S31 = 4;
static final int S32 = 11;
static final int S33 = 16;
static final int S34 = 23;
static final int S41 = 6;
static final int S42 = 10;
static final int S43 = 15;
static final int S44 = 21;
static final byte[] PADDING = {
-128, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
/* 下面的三个成员是MD5计算过程中用到的3个核心数据,在原始的C实现中
被定义到MD5_CTX结构中
*/
private long[] state = new long[4]; // state (ABCD)
private long[] count = new long[2]; // number of bits, modulo 2^64 (lsb first)
private byte[] buffer = new byte[64]; // input buffer
/* digestHexStr是MD5的唯一一个公共成员,是最新一次计算结果的
16进制ASCII表示.
*/
public String digestHexStr;
/* digest,是最新一次计算结果的2进制内部表示,表示128bit的MD5值.
*/
private byte[] digest = new byte[16];
/*
getMD5ofStr是类MD5最主要的公共方法,入口参数是你想要进行MD5变换的字符串
返回的是变换完的结果,这个结果是从公共成员digestHexStr取得的.
*/
public String getMD5ofStr(String inbuf) {
md5Init();
md5Update(inbuf.getBytes(), inbuf.length());
md5Final();
digestHexStr = "";
for (int i = 0; i < 16; i++) {
digestHexStr += byteHEX(digest[i]);
}
return digestHexStr;
}
// 这是MD5这个类的标准构造函数,JavaBean要求有一个public的并且没有参数的构造函数
public MD5() {
md5Init();
return;
}
/* md5Init是一个初始化函数,初始化核心变量,装入标准的幻数 */
private void md5Init() {
count[0] = 0L;
count[1] = 0L;
///* Load magic initialization constants.
state[0] = 0x67452301L;
state[1] = 0xefcdab89L;
state[2] = 0x98badcfeL;
state[3] = 0x10325476L;
return;
}
/* F, G, H ,I 是4个基本的MD5函数,在原始的MD5的C实现中,由于它们是
简单的位运算,可能出于效率的考虑把它们实现成了宏,在java中,我们把它们
实现成了private方法,名字保持了原来C中的。 */
private long F(long x, long y, long z) {
return (x & y) | ( (~x) & z);
}
private long G(long x, long y, long z) {
return (x & z) | (y & (~z));
}
private long H(long x, long y, long z) {
return x ^ y ^ z;
}
private long I(long x, long y, long z) {
return y ^ (x | (~z));
}
/*
FF,GG,HH和II将调用F,G,H,I进行近一步变换
FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4.
Rotation is separate from addition to prevent recomputation.
*/
private long FF(long a, long b, long c, long d, long x, long s,
long ac) {
a += F(b, c, d) + x + ac;
a = ( (int) a << s) | ( (int) a >>> (32 - s));
a += b;
return a;
}
private long GG(long a, long b, long c, long d, long x, long s,
long ac) {
a += G(b, c, d) + x + ac;
a = ( (int) a << s) | ( (int) a >>> (32 - s));
a += b;
return a;
}
private long HH(long a, long b, long c, long d, long x, long s,
long ac) {
a += H(b, c, d) + x + ac;
a = ( (int) a << s) | ( (int) a >>> (32 - s));
a += b;
return a;
}
private long II(long a, long b, long c, long d, long x, long s,
long ac) {
a += I(b, c, d) + x + ac;
a = ( (int) a << s) | ( (int) a >>> (32 - s));
a += b;
return a;
}
/*
md5Update是MD5的主计算过程,inbuf是要变换的字节串,inputlen是长度,这个
函数由getMD5ofStr调用,调用之前需要调用md5init,因此把它设计成private的
*/
private void md5Update(byte[] inbuf, int inputLen) {
int i, index, partLen;
byte[] block = new byte[64];
index = (int) (count[0] >>> 3) & 0x3F;
// /* Update number of bits */
if ( (count[0] += (inputLen << 3)) < (inputLen << 3)) {
count[1]++;
}
count[1] += (inputLen >>> 29);
partLen = 64 - index;
// Transform as many times as possible.
if (inputLen >= partLen) {
md5Memcpy(buffer, inbuf, index, 0, partLen);
md5Transform(buffer);
for (i = partLen; i + 63 < inputLen; i += 64) {
md5Memcpy(block, inbuf, 0, i, 64);
md5Transform(block);
}
index = 0;
}
else {
i = 0;
///* Buffer remaining input */
}
md5Memcpy(buffer, inbuf, index, i, inputLen - i);
}
/*
md5Final整理和填写输出结果
*/
private void md5Final() {
byte[] bits = new byte[8];
int index, padLen;
///* Save number of bits */
Encode(bits, count, 8);
///* Pad out to 56 mod 64.
index = (int) (count[0] >>> 3) & 0x3f;
padLen = (index < 56) ? (56 - index) : (120 - index);
md5Update(PADDING, padLen);
///* Append length (before padding) */
md5Update(bits, 8);
///* Store state in digest */
Encode(digest, state, 16);
}
/* md5Memcpy是一个内部使用的byte数组的块拷贝函数,从input的inpos开始把len长度的
字节拷贝到output的outpos位置开始
*/
private void md5Memcpy(byte[] output, byte[] input,
int outpos, int inpos, int len) {
int i;
for (i = 0; i < len; i++) {
output[outpos + i] = input[inpos + i];
}
}
/*
md5Transform是MD5核心变换程序,有md5Update调用,block是分块的原始字节
*/
private void md5Transform(byte block[]) {
long a = state[0], b = state[1], c = state[2], d = state[3];
long[] x = new long[16];
Decode(x, block, 64);
/* Round 1 */
a = FF(a, b, c, d, x[0], S11, 0xd76aa478L); /* 1 */
d = FF(d, a, b, c, x[1], S12, 0xe8c7b756L); /* 2 */
c = FF(c, d, a, b, x[2], S13, 0x242070dbL); /* 3 */
b = FF(b, c, d, a, x[3], S14, 0xc1bdceeeL); /* 4 */
a = FF(a, b, c, d, x[4], S11, 0xf57c0fafL); /* 5 */
d = FF(d, a, b, c, x[5], S12, 0x4787c62aL); /* 6 */
c = FF(c, d, a, b, x[6], S13, 0xa8304613L); /* 7 */
b = FF(b, c, d, a, x[7], S14, 0xfd469501L); /* 8 */
a = FF(a, b, c, d, x[8], S11, 0x698098d8L); /* 9 */
d = FF(d, a, b, c, x[9], S12, 0x8b44f7afL); /* 10 */
c = FF(c, d, a, b, x[10], S13, 0xffff5bb1L); /* 11 */
b = FF(b, c, d, a, x[11], S14, 0x895cd7beL); /* 12 */
a = FF(a, b, c, d, x[12], S11, 0x6b901122L); /* 13 */
d = FF(d, a, b, c, x[13], S12, 0xfd987193L); /* 14 */
c = FF(c, d, a, b, x[14], S13, 0xa679438eL); /* 15 */
b = FF(b, c, d, a, x[15], S14, 0x49b40821L); /* 16 */
/* Round 2 */
a = GG(a, b, c, d, x[1], S21, 0xf61e2562L); /* 17 */
d = GG(d, a, b, c, x[6], S22, 0xc040b340L); /* 18 */
c = GG(c, d, a, b, x[11], S23, 0x265e5a51L); /* 19 */
b = GG(b, c, d, a, x[0], S24, 0xe9b6c7aaL); /* 20 */
a = GG(a, b, c, d, x[5], S21, 0xd62f105dL); /* 21 */
d = GG(d, a, b, c, x[10], S22, 0x2441453L); /* 22 */
c = GG(c, d, a, b, x[15], S23, 0xd8a1e681L); /* 23 */
b = GG(b, c, d, a, x[4], S24, 0xe7d3fbc8L); /* 24 */
a = GG(a, b, c, d, x[9], S21, 0x21e1cde6L); /* 25 */
d = GG(d, a, b, c, x[14], S22, 0xc33707d6L); /* 26 */
c = GG(c, d, a, b, x[3], S23, 0xf4d50d87L); /* 27 */
b = GG(b, c, d, a, x[8], S24, 0x455a14ed
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网上订餐系统(struts+spring+hibernate).zip
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网上订餐系统(struts+spring+hibernate).zip (250个子文件)
MD5.class 8KB
FoodInfoDAO.class 6KB
UserInfoDAO.class 6KB
EnterpriseInfoDAO.class 6KB
ManageInfoDAO.class 6KB
OrderInfoDAO.class 6KB
ComplainInfoDAO.class 5KB
CreditDAO.class 5KB
OrderAccessorilyDAO.class 5KB
FoodSmallTypeDAO.class 5KB
FoodBigTypeDAO.class 5KB
AddUserInfoAction.class 4KB
UserInfo.class 4KB
FoodInfo.class 3KB
RandomCode.class 3KB
AddEnterpriseInfoAction.class 3KB
EnterpriseInfo.class 3KB
FoodInfoService.class 3KB
UserInfoForm.class 3KB
EditUserPassAction.class 3KB
OrderInfo.class 3KB
PreEditUserInfoAction.class 3KB
EnterpriseForm.class 3KB
EditUserInfoAction.class 3KB
UserLoginAction.class 3KB
EditEnterpriseInfoAction.class 2KB
ManageInfo.class 2KB
EnterpriseLoginAction.class 2KB
MyFactory.class 2KB
WelcomeAction.class 2KB
UserInfoService.class 2KB
OrderService.class 2KB
AddComplainAction.class 2KB
ValidateEnterpriseAction.class 2KB
ValidateUserAction.class 2KB
EnterpriseInfoService.class 2KB
PreEditEnterpriseAction.class 2KB
ManageInfoService.class 2KB
FoodSmallType.class 2KB
FoodBigType.class 1KB
FindEnterpriseInfoAction.class 1KB
FindUserInfoAction.class 1KB
OrderAccessorily.class 1KB
PreEnterpriseLoginAction.class 1KB
ComplainInfo.class 1KB
PreUserLoginAction.class 1KB
ComplainInfoService.class 1KB
Credit.class 1KB
LogoutUserAction.class 1KB
LogoutAction.class 1KB
EditEnterprisePassAction.class 1KB
CreditService.class 1KB
PreEditEnterprisePassAction.class 1KB
PreEnterpriseRegisterAction.class 1KB
PreAddComplainAction.class 1KB
PreEditUserPassAction.class 1020B
PreRegisterAction.class 1008B
FindUserOredersAction.class 878B
FindMyCreditAction.class 871B
FoodCartAction.class 863B
.classpath 2KB
front_style.css 1KB
enterprise_style.css 1KB
user_style.css 1KB
frame_style.css 1002B
banner-zfsf.gif 15KB
userinfo.gif 9KB
topbg.gif 6KB
regok_5.gif 2KB
regok_3.gif 2KB
regok_1.gif 2KB
regok_4.gif 2KB
regok_6.gif 2KB
tab1_1.gif 2KB
zc.gif 1KB
zc.gif 1KB
zc.gif 1KB
tab1_2.gif 1KB
bg_line.gif 1KB
bg-left.gif 1KB
client.gif 1012B
user2.gif 1005B
xx_ss_x.gif 729B
xx_ss_s.gif 630B
addto.gif 528B
login.gif 359B
login.gif 359B
login.gif 359B
sou.gif 351B
left_bg.gif 288B
ico-2.gif 200B
xx_bj2.gif 168B
bj_2.gif 164B
role.gif 153B
ico-1.gif 138B
xx_bj1.gif 113B
arrow01.gif 96B
arrow.gif 94B
an.gif 91B
an.gif 91B
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