package com.sanqing.common;
/************************************************
MD5 �㷨��Java Bean
@author:Topcat Tuppin
Last Modified:10,Mar,2001
*************************************************/
import java.lang.reflect.*;
/*************************************************
md5 ��ʵ����RSA Data Security, Inc.���ύ��IETF
��RFC1321�е�MD5 message-digest �㷨��
*************************************************/
public class MD5 {
/* ������ЩS11-S44ʵ������һ��4*4�ľ�����ԭʼ��Cʵ��������#define ʵ�ֵģ�
���������ʵ�ֳ�Ϊstatic final�DZ�ʾ��ֻ����������ͬһ����̿ռ��ڵĶ��
Instance�乲��*/
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 };
/* ����������Ա��MD5���������õ���3��������ݣ���ԭʼ��Cʵ����
�����嵽MD5_CTX�ṹ��
*/
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��MD5��Ψһһ��������Ա��������һ�μ������
�� 16����ASCII��ʾ.
*/
public String digestHexStr;
/* digest,������һ�μ������2�����ڲ���ʾ����ʾ128bit��MD5ֵ.
*/
private byte[] digest = new byte[16];
/*
getMD5ofStr����MD5����Ҫ�Ĺ�����������ڲ���������Ҫ����MD5�任���ַ�
���ص��DZ任��Ľ���������Ǵӹ�����ԱdigestHexStrȡ�õģ�
*/
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;
}
// ����MD5�����ı����캯��JavaBeanҪ����һ��public�IJ���û�в���Ĺ��캯��
public MD5() {
md5Init();
return;
}
/* md5Init��һ����ʼ�������ʼ�����ı�����װ����Ļ��� */
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 ��4�����MD5������ԭʼ��MD5��Cʵ���У�����������
��λ���㣬���ܳ���Ч�ʵĿ��ǰ�����ʵ�ֳ��˺꣬��java�У����ǰ�����
����ʵ�ֳ���private���������ֱ�����ԭ��C�еġ� */
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��II������F,G,H,I���н�һ���任
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��MD5���������̣�inbuf��Ҫ�任���ֽڴ���inputlen�dz��ȣ����
������getMD5ofStr���ã�����֮ǰ��Ҫ����md5init����˰�����Ƴ�private��
*/
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������������
*/
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);
java仓库管理系统SQL （505个子文件） 
MD5.class 8KB VendermasterDAO.class 6KB B_vender.class 6KB EmployeeDAO.class 6KB ItemgeneralDAO.class 6KB BEmployee.class 6KB ActionmasterDAO.class 6KB WarehouseDAO.class 6KB EceiptDAO.class 6KB EceiptBillDAO.class 6KB IusseDAO.class 6KB IusseBillDAO.class 5KB Employee.class 5KB PhysicsdataDAO.class 5KB RoleactionDAO.class 5KB BRoleAction.class 5KB InventorytagDAO.class 5KB ShipaddrDAO.class 5KB StockreasonDAO.class 5KB RolemasterDAO.class 5KB Itemgeneral.class 5KB ClasscodeDAO.class 5KB VendtypeDAO.class 5KB LocationDAO.class 5KB CurrencyDAO.class 5KB UmmasterDAO.class 5KB ShipvinDAO.class 5KB WarehouseItemDAO.class 5KB CurrencyrateDAO.class 5KB ItemlocationDAO.class 5KB EmployeeroleDAO.class 5KB BItemGeneral.class 5KB BUserRight.class 4KB Eceipt.class 4KB Iusse.class 4KB Warehouse.class 4KB BAction.class 4KB ItemeditorAction.class 4KB VenderEditorAction.class 4KB Vendermaster.class 3KB BRoleMaster.class 3KB PageBean.class 3KB BWareHouse.class 3KB VenderEditorForm.class 3KB EceiptBill.class 3KB IusseBill.class 3KB ItemeditorForm.class 3KB UserEditorForm.class 3KB BClassCode.class 3KB BLocation.class 3KB BShipVin.class 3KB BCurrency.class 3KB BUmMaster.class 3KB ItemlocationId.class 3KB Inventorytag.class 3KB json.class 2KB RoleActionAction.class 2KB Location.class 2KB Physicsdata.class 2KB WarehouseItemId.class 2KB HibernateSessionFactory.class 2KB UserEditorAction.class 2KB VenderTypeEditorAction.class 2KB CurrencyrateId.class 2KB ActionEditorAction.class 2KB ClassCodeEditorAction.class 2KB LocationeditorAction.class 2KB CurrencyEditorAction.class 2KB ShipvinEditorAction.class 2KB RoleEditorAction.class 2KB WarehouseAction.class 2KB UmmasterAction.class 2KB WarehouseForm.class 2KB Currency.class 2KB Stockreason.class 2KB Actionmaster.class 2KB LoginAction.class 2KB Rolemaster.class 2KB RoleactionId.class 2KB vendtypebean.class 2KB classCodeBean.class 2KB shipvinbean.class 2KB employeeBean.class 2KB ummasterBean.class 2KB ActionEditorForm.class 1KB LoginForm.class 1KB Shipvin.class 1KB Shipaddr.class 1KB Vendtype.class 1KB WarehouseItem.class 1KB Roleaction.class 1KB Classcode.class 1KB Employeerole.class 1KB Ummaster.class 1KB Itemlocation.class 1KB VenderTypeEditorForm.class 1KB Currencyrate.class 1KB ShipvinEditorForm.class 1KB UserRoleEditorForm.class 1KB ClassCodeEditorForm.class 1KB共 505 条
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