package com.payease.chains.risk.utils; /** * md5密码加密工具类 * Created by liuxiaoming on 2017/8/28. */ public class MD5 { 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 }; public static long b2iu(byte b) { return (b >= 0 ? b : b & 0xff); } 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 & 0xf]; ob[1] = Digit[ib & 0xf]; String s = new String(ob); return s; } public static String encode(String s) { MD5 m = new MD5(); return m.getMD5ofStr(s); } private long state[]; private long count[]; private byte buffer[]; public String digestHexStr; private byte digest[]; public MD5() { state = new long[4]; count = new long[2]; buffer = new byte[64]; digest = new byte[16]; md5Init(); } private void Decode(long output[], byte input[], int len) { int i = 0; for (int j = 0; j < len; j += 4) { output[i] = b2iu(input[j]) | b2iu(input[j + 1]) << 8 | b2iu(input[j + 2]) << 16 | b2iu(input[j + 3]) << 24; i++; } } private void Encode(byte output[], long input[], int len) { int i = 0; for (int j = 0; j < len; j += 4) { output[j] = (byte) (int) (input[i] & 255L); output[j + 1] = (byte) (int) (input[i] >>> 8 & 255L); output[j + 2] = (byte) (int) (input[i] >>> 16 & 255L); output[j + 3] = (byte) (int) (input[i] >>> 24 & 255L); i++; } } private long F(long x, long y, long z) { return x & y | (x ^ 0L - 1L) & z; } 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 << (int) s | (int) a >>> (int) (32 - s); a += b; return a; } private long G(long x, long y, long z) { return x & z | y & (z ^ 0L - 1L); } public String getMD5ofStr(String inbuf) { md5Init(); md5Update(inbuf.getBytes(), inbuf.length()); md5Final(); digestHexStr = ""; for (int i = 0; i < 16; i++) digestHexStr = String.valueOf(digestHexStr) + String.valueOf(byteHEX(digest[i])); return digestHexStr; } 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 << (int) s | (int) a >>> (int) (32 - s); a += b; return a; } private long H(long x, long y, long z) { return x ^ y ^ z; } 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 << (int) s | (int) a >>> (int) (32 - s); a += b; return a; } private long I(long x, long y, long z) { return y ^ (x | z ^ 0L - 1L); } 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 << (int) s | (int) a >>> (int) (32 - s); a += b; return a; } private void md5Final() { byte bits[] = new byte[8]; Encode(bits, count, 8); int index = (int) (count[0] >>> 3) & 0x3f; int padLen = index >= 56 ? 120 - index : 56 - index; md5Update(PADDING, padLen); md5Update(bits, 8); Encode(digest, state, 16); } private void md5Init() { count[0] = 0L; count[1] = 0L; state[0] = 0x67452301L; state[1] = 0xefcdab89L; state[2] = 0x98badcfeL; state[3] = 0x10325476L; } private void md5Memcpy(byte output[], byte input[], int outpos, int inpos, int len) { for (int i = 0; i < len; i++) output[outpos + i] = input[inpos + i]; } private void md5Transform(byte block[]) { long a = state[0]; long b = state[1]; long c = state[2]; long d = state[3]; long x[] = new long[16]; Decode(x, block, 64); a = FF(a, b, c, d, x[0], 7L, 0xd76aa478L); d = FF(d, a, b, c, x[1], 12L, 0xe8c7b756L); c = FF(c, d, a, b, x[2], 17L, 0x242070dbL); b = FF(b, c, d, a, x[3], 22L, 0xc1bdceeeL); a = FF(a, b, c, d, x[4], 7L, 0xf57c0fafL); d = FF(d, a, b, c, x[5], 12L, 0x4787c62aL); c = FF(c, d, a, b, x[6], 17L, 0xa8304613L); b = FF(b, c, d, a, x[7], 22L, 0xfd469501L); a = FF(a, b, c, d, x[8], 7L, 0x698098d8L); d = FF(d, a, b, c, x[9], 12L, 0x8b44f7afL); c = FF(c, d, a, b, x[10], 17L, 0xffff5bb1L); b = FF(b, c, d, a, x[11], 22L, 0x895cd7beL); a = FF(a, b, c, d, x[12], 7L, 0x6b901122L); d = FF(d, a, b, c, x[13], 12L, 0xfd987193L); c = FF(c, d, a, b, x[14], 17L, 0xa679438eL); b = FF(b, c, d, a, x[15], 22L, 0x49b40821L); a = GG(a, b, c, d, x[1], 5L, 0xf61e2562L); d = GG(d, a, b, c, x[6], 9L, 0xc040b340L); c = GG(c, d, a, b, x[11], 14L, 0x265e5a51L); b = GG(b, c, d, a, x[0], 20L, 0xe9b6c7aaL); a = GG(a, b, c, d, x[5], 5L, 0xd62f105dL); d = GG(d, a, b, c, x[10], 9L, 0x2441453L); c = GG(c, d, a, b, x[15], 14L, 0xd8a1e681L); b = GG(b, c, d, a, x[4], 20L, 0xe7d3fbc8L); a = GG(a, b, c, d, x[9], 5L, 0x21e1cde6L); d = GG(d, a, b, c, x[14], 9L, 0xc33707d6L); c = GG(c, d, a, b, x[3], 14L, 0xf4d50d87L); b = GG(b, c, d, a, x[8], 20L, 0x455a14edL); a = GG(a, b, c, d, x[13], 5L, 0xa9e3e905L); d = GG(d, a, b, c, x[2], 9L, 0xfcefa3f8L); c = GG(c, d, a, b, x[7], 14L, 0x676f02d9L); b = GG(b, c, d, a, x[12], 20L, 0x8d2a4c8aL); a = HH(a, b, c, d, x[5], 4L, 0xfffa3942L); d = HH(d, a, b, c, x[8], 11L, 0x8771f681L); c = HH(c, d, a, b, x[11], 16L, 0x6d9d6122L); b = HH(b, c, d, a, x[14], 23L, 0xfde5380cL); a = HH(a, b, c, d, x[1], 4L, 0xa4beea44L); d = HH(d, a, b, c, x[4], 11L, 0x4bdecfa9L); c = HH(c, d, a, b, x[7], 16L, 0xf6bb4b60L); b = HH(b, c, d, a, x[10], 23L, 0xbebfbc70L); a = HH(a, b, c, d, x[13], 4L, 0x289b7ec6L); d = HH(d, a, b, c, x[0], 11L, 0xeaa127faL); c = HH(c, d, a, b, x[3], 16L, 0xd4ef3085L); b = HH(b, c, d, a, x[6], 23L, 0x4881d05L); a = HH(a, b, c, d, x[9], 4L, 0xd9d4d039L); d = HH(d, a, b, c, x[12], 11L, 0xe6db99e5L); c = HH(c, d, a, b, x[15], 16L, 0x1fa27cf8L); b = HH(b, c, d, a, x[2], 23L, 0xc4ac5665L); a = II(a, b, c, d, x[0], 6L, 0xf4292244L); d = II(d, a, b, c, x[7], 10L, 0x432aff97L); c = II(c, d, a, b, x[14], 15L, 0xab9423a7L); b = II(b, c, d, a, x[5], 21L, 0xfc93a039L); a = II(a, b, c, d, x[12], 6L, 0x655b59c3L); d = II(d, a, b, c, x[3], 10L, 0x8f0ccc92L); c = II(c, d, a, b, x[10], 15L, 0xffeff47dL); b = II(b, c, d, a, x[1], 21L, 0x85845dd1L); a = II(a, b, c, d, x[8], 6L, 0x6fa87e4fL); d = II(d, a, b, c, x[15], 10L, 0xfe2ce6e0L); c = II(c, d, a, b, x[6], 15L, 0xa3014314L); b = II(b, c, d, a, x[13], 21L, 0x4e0811a1L); a = II(a, b, c, d, x[4], 6L, 0xf7537e82L); d = II(d, a, b, c, x[11], 10L, 0xbd3af235L); c = II(c, d, a, b, x[2], 15L, 0x2ad7d2bbL); b = II(b, c, d, a, x[9], 21L, 0xeb86d391L); state[0] += a; state[1] += b; state[2] += c; state[3] += d; } private void md5Update(byte inbuf[], int inputLen) { byte block[] = new byte[64]; int index = (int) (count[0] >>> 3) & 0x3f; if ((count[0] += inputLen << 3) < (inputLen << 3)) count[1]++; count[1] += inputLen >>> 29; int partLen = 64 - index; int i; 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; md5Memcpy(buffer, inbuf, index, i, inputLen - i); } public static void main(String[] args) { System.out.println(MD5.encode("1")); } }