import java.lang.reflect.*;
/*************************************************
md5 綾誨疄鐜頒簡RSA Data Security, Inc.鍦ㄦ彁浜ょ粰IETF
鐨凴FC1321涓殑MD5 message-digest 綆楁硶銆?br />
*************************************************/
public class MD5
{
// 涓嬮潰榪欎簺S11-S44瀹為檯涓婃槸涓涓?*4鐨勭煩闃碉紝榪欐牱鍐欐槸鏂逛究淇敼
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 };
// 涓嬮潰鐨勪笁涓垚鍛樻槸MD5璁$畻榪囩▼涓敤鍒扮殑3涓牳蹇冩暟鎹紝鍦ㄥ師濮嬬殑C瀹炵幇涓?br />
// 琚畾涔夊埌MD5_CTX緇撴瀯涓?br />
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鏄疢D5鐨勫敮涓涓涓叕鍏辨垚鍛橈紝鏄渶鏂頒竴嬈¤綆楃粨鏋滅殑
// 16榪涘埗ASCII琛ㄧず.
public String digestHexStr;
// digest,鏄渶鏂頒竴嬈¤綆楃粨鏋滅殑2榪涘埗鍐呴儴琛ㄧず錛岃〃紺?28bit鐨凪D5鍊?
private byte[] digest = new byte[16];
// getMD5ofStr鏄被MD5鏈涓昏鐨勫叕鍏辨柟娉曪紝鍏ュ彛鍙傛暟鏄綘鎯寵榪涜MD5鍙樻崲鐨勫瓧絎︿覆
// 榪斿洖鐨勬槸鍙樻崲瀹岀殑緇撴灉錛岃繖涓粨鏋滄槸浠庡叕鍏辨垚鍛榙igestHexStr鍙栧緱鐨勶紟
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;
}
// 榪欐槸MD5榪欎釜綾葷殑鏍囧噯鏋勯犲嚱鏁幫紝JavaBean瑕佹眰鏈変竴涓猵ublic鐨勫茍涓旀病鏈夊弬鏁扮殑鏋勯犲嚱鏁?br />
public MD5()
{
md5Init();
return;
}
// md5Init鏄竴涓垵濮嬪寲鍑芥暟錛屽垵濮嬪寲鏍稿績鍙橀噺錛岃鍏ユ爣鍑嗙殑騫繪暟
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 鏄?涓熀鏈殑MD5鍑芥暟錛屽湪鍘熷鐨凪D5鐨凜瀹炵幇涓紝鐢變簬瀹冧滑鏄?br />
// 綆鍗曠殑浣嶈繍綆楋紝鍙兘鍑轟簬鏁堢巼鐨勮冭檻鎶婂畠浠疄鐜版垚浜嗗畯錛屽湪java涓紝鎴戜滑鎶婂畠浠?br />
// 瀹炵幇鎴愪簡private鏂規硶錛屽悕瀛椾繚鎸佷簡鍘熸潵C涓殑銆?br />
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鍜孖I灝嗚皟鐢‵,G,H,I榪涜榪戜竴姝ュ彉鎹?br />
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鏄疢D5鐨勪富璁$畻榪囩▼錛宨nbuf鏄鍙樻崲鐨勫瓧鑺備覆錛宨nputlen鏄暱搴︼紝榪欎釜
// 鍑芥暟鐢眊etMD5ofStr璋冪敤錛岃皟鐢ㄤ箣鍓嶉渶瑕佽皟鐢╩d5init錛屽洜姝ゆ妸瀹冭璁℃垚private鐨?br />
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);
}
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鏄竴涓唴閮ㄤ嬌鐢ㄧ殑byte鏁扮粍鐨勫潡鎷瘋礉鍑芥暟錛屼粠input鐨刬npos寮濮嬫妸len闀垮害鐨?br />
// 瀛楄妭鎷瘋礉鍒皁utput鐨刼utpos浣嶇疆寮濮?br />
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鏄疢D5鏍稿績鍙樻崲紼嬪簭錛屾湁md5Update璋冪敤錛宐lock鏄垎鍧楃殑鍘熷瀛楄妭
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, 0x455a14edL); /* 28 */
a = GG (a, b, c, d, x[13], S21, 0xa9e3e905L); /* 29 */
d = GG (d, a, b, c, x[2], S22, 0xfcefa3f8L); /* 30 */
c = GG (c, d, a, b, x[7], S23, 0x676f02d9L); /* 31 */
b = GG (b, c, d, a, x[12], S24, 0x8d2a4c8aL); /* 32 */
/* Round 3 */
a = HH (a, b, c, d, x[5], S31, 0xfffa3942L); /* 33 */
d = HH (d, a, b, c, x[8], S32, 0x8771f681L); /* 34 */
c = HH (c, d, a, b, x[11], S33, 0x6d9d6122L); /* 35 */
b = HH (b, c, d, a, x[14], S34, 0xfde5380cL); /* 36 */
a = HH (a, b, c, d, x[1], S31, 0xa4beea44L); /* 37 */
d = HH (d, a, b, c, x[4], S32, 0x4bdecfa9L); /* 38 */
c = HH (c, d, a, b, x[7], S33, 0xf6bb4b60L); /* 39 */
b = HH (b, c, d, a, x[10], S34, 0xbebfbc70L); /* 40 */
a = HH (a, b, c, d, x[13], S31, 0x289b7ec6L); /* 41 */
d = HH (d, a, b, c, x[0], S32, 0xeaa127faL); /* 42 */
c = HH (c, d, a, b, x[3], S33, 0xd4ef3085L); /* 43 */
b = HH (b, c, d, a, x[6], S34, 0x4881d05L); /* 44 */
a = HH (a, b, c, d, x[9], S31, 0xd9d4d039L); /* 45 */
d = HH (d, a, b, c, x[12], S32, 0xe6db99e5L); /* 46 */
c = HH (c, d, a, b, x[15], S33, 0x1fa27cf8L); /* 47 */
b = HH (b, c, d, a, x[2], S34, 0xc4ac5665L); /* 48 */
/* Round 4 */
a = II (a, b, c, d, x[0], S41, 0xf4292244L); /* 49 */
d = II (d, a, b, c, x[7], S42, 0x432aff97L); /* 50 */
c = II (c, d, a, b, x[14], S43, 0xab9423a7L); /* 51 */
b = II (b, c, d, a, x[5], S44, 0xfc93a039L); /* 52 */
a = II (a, b, c, d, x[12], S41, 0x655b59c3L); /* 53 */
d = II (d, a, b, c, x[3], S42, 0x8f0ccc92L); /* 54 */
c = II (c, d, a, b, x[10], S43, 0xffeff47dL); /* 55 */
b = II (b, c, d, a, x[1], S44, 0x85845dd1L); /* 56 */
a = II (a, b, c, d, x[8], S41, 0x6fa87e4fL); /* 57 */
d = II (d, a, b, c, x[15], S42, 0xfe2ce6e0L); /* 58 */
c = II (c, d, a, b, x[6], S43, 0xa3014314L); /* 59 */
b = II (b, c, d, a, x[13], S44, 0x4e0811a1L); /* 60 */
a = II (a, b, c, d, x[4], S41, 0xf7537e82L); /* 61 */
d = II (d, a, b, c, x[11], S42, 0xbd3af235L); /* 62 */
c = II (c, d, a, b, x[2], S43, 0x2ad7d2bbL); /* 63 */
b = II (b, c, d, a, x[9], S44, 0xeb86d391L); /* 64 */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
}
// Encode鎶妉ong鏁扮粍鎸夐『搴忔媶鎴恇yte鏁扮粍錛屽洜涓簀ava鐨刲ong綾誨瀷鏄?4bit鐨勶紝
// 鍙媶浣?2bit錛屼互閫傚簲鍘熷C瀹炵幇鐨勭敤閫?br />
private void Encode (byte[] output, long[] input, int len)
{
int i, j;
for (i = 0, j = 0; j < len; i++, j += 4) {
output[j] = (byte)(input[i] & 0xffL);
output[j + 1] = (byte)((input[i] >>> 8) & 0xffL);
output[j + 2] = (byte)((input[i] >>> 16) & 0xffL);
output[j + 3] = (byte)((input[i] >>> 24) & 0xffL);
}
}
// Decode鎶奲yte鏁扮粍鎸夐『搴忓悎鎴愭垚long鏁扮粍錛屽洜涓簀ava鐨刲ong綾誨瀷鏄?4bit鐨勶紝
// 鍙悎鎴愪綆32bit錛岄珮32bit娓呴浂錛屼互閫傚簲鍘熷C瀹炵幇鐨勭敤閫?br />
private void Decode (long[] output, byte[] input, int len)
{
int i, j;
for (i = 0, j = 0; j < len; i++, j += 4)
output[i] = b2iu(input[j]) |
(b2iu(input[j + 1]) << 8) |
(b2iu(input[j + 2]) << 16) |
(b2iu(input[j + 3]) << 24);
return;
}
// b2iu鏄竴涓妸byte鎸夌収涓嶈冭檻姝h礋鍙風殑鍘熷垯鐨勶紓鍗囦綅錛傜▼搴忥紝鍥犱負java娌℃湁unsigned榪愮畻
public static long b2iu(byte b) {
return b < 0 ? b & 0x7F + 128 : b;
}
// byteHEX()錛岀敤鏉ユ妸涓涓猙yte綾誨瀷鐨勬暟杞崲鎴愬崄鍏繘鍒剁殑ASCII琛ㄧず錛?br />
// 鍥犱負java涓殑byte鐨則oString鏃犳硶瀹炵幇榪欎竴鐐癸紝鎴戜滑鍙堟病鏈塁璇█涓殑
// sprintf(outbuf,"%02X",ib)
public static String byteHEX(byte ib)
{
char[] Digit = { '0','1','2','3','4','5','6','7','8','9',
'A','B','C','D','E','F' };
char [] ob = new char[2];
ob[0] = Digit[(ib >>> 4) & 0X0F];
ob[1] = Digit[ib & 0X0F];
String s = new String(ob);
return s;
}
public static String toMD5(String source)
{
MD5 md5 = new MD5();
return md5.getMD5ofStr(source);
}
}
//緇撴灉鐢熸垚 32浣嶇殑鍔犲瘑瀛楃涓詫紝鏈夌殑瀹炰緥涓埅鍙栫殑鏄姞瀵嗗瓧涓茬殑 8--24浣嶏紝闀垮害涓?6浣?/p>