年末,项目没那么紧了,能收钱的都已经收了,收不了的也没戏了,so,悠闲的日子又来了。闲的蛋疼,于是就研究了下公司某个证书,看看是否能破解,于是乎,就出来了这篇东西。话不多扯,直接上主菜:
public class Test { private DES3_CBC_CTX_2 _ctx = new DES3_CBC_CTX_2(); private final static long[][] Spbox = { {0x01010400L, 0x00000000L, 0x00010000L, 0x01010404L, 0x01010004L, 0x00010404L, 0x00000004L, 0x00010000L, 0x00000400L, 0x01010400L, 0x01010404L, 0x00000400L, 0x01000404L, 0x01010004L, 0x01000000L, 0x00000004L, 0x00000404L, 0x01000400L, 0x01000400L, 0x00010400L, 0x00010400L, 0x01010000L, 0x01010000L, 0x01000404L, 0x00010004L, 0x01004004L, 0x01000004L, 0x00010004L, 0x00000000L, 0x00000404L, 0x00010404L, 0x01000000L, 0x00010000L, 0x01010404L, 0x00000004L, 0x01010000L, 0x01010400L, 0x01000400L, 0x01000000L, 0x00000400L, 0x01010004L, 0x00010000L, 0x00010400L, 0x01000804L, 0x00000400L, 0x00000004L, 0x01000404L, 0x00010404L, 0x01010404L, 0x00010004L, 0x01010000L, 0x01000404L, 0x01000004L, 0x00000404L, 0x00010404L, 0x01010400L, 0x00000404L, 0x01000400L, 0x01000400L, 0x00000000L, 0x00010004L, 0x00010400L, 0x00000000L, 0x01010004L}, {0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L, 0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L, 0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L, 0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L, 0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L, 0x80001000L, 0x00008000L, 0x00108020L, 0x80100000L, 0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L, 0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L, 0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L, 0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L, 0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L, 0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L, 0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L, 0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L, 0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L, 0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L}, {0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L, 0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L, 0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L, 0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L, 0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L, 0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L, 0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L, 0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L, 0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L, 0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L, 0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L, 0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L, 0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L, 0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L, 0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L, 0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L}, {0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, 0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L, 0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L, 0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L, 0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L, 0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L, 0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L, 0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L, 0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L, 0x00000081L, 0x00000000L, 0x00002000L, 0x00802000L, 0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L, 0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, 0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L, 0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L, 0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L, 0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L}, {0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L, 0x00080000L, 0x02000100L, 0x40000000L, 0x02080000L, 0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L, 0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L, 0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L, 0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L, 0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L, 0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L, 0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L, 0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L, 0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L, 0x40080100L, 0x00000100L, 0x02000800L, 0x42080000L, 0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L, 0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L, 0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L, 0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L}, {0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L, 0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L, 0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L, 0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L, 0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L, 0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L, 0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L, 0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L, 0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L, 0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L, 0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L, 0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L, 0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L, 0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L, 0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L, 0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L}, {0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L, 0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L, 0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L, 0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L, 0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L, 0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L, 0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L, 0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L, 0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L, 0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L, 0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L, 0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L, 0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L, 0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L, 0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L, 0x04000002L, 0x04010800L, 0x00000800L, 0x00200002L}, {0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L, 0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L, 0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L, 0x10041000L, 0x00041040L, 0x00001000L, 0x00800040L, 0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L, 0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L, 0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L, 0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L, 0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L, 0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L, 0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L, 0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L, 0x00002000L, 0x10041040L, 0x00040040L, 0x10000040L, 0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L, 0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L, 0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L} }; private static final long[][] keysD = { { 1060312887L, 1061105191L, 1044324135L, 1060972330L, 1061101340L, 925840175L, 792673310L, 1061104411L, 925842479L, 1061108237L, 1061106959L, 1027417653L, 1059006254L, 926889223L, 792669726L, 1061106751L, 1060974120L, 1061108539L, 1061108795L, 792401721L, 1061107498L, 1061031740L, 993736253L, 1061094702L, 1060978460L, 994000168L, 1061040669L, 792674075L, 1061108535L, 1044261913L, 926882085L, 524226367L }, { 1058479411L, 1061095982L, 658445333L, 1061105437L, 1061108246L, 926628648L, 1061108284L, 1059915563L, 910106408L, 1059005758L, 524236071L, 524227898L, 1027023145L, 1060051769L, 1044331577L, 1043807028L, 1060713992L, 1061109007L, 993994014L, 1059989292L, 1044327983L, 792658725L, 1060977706L, 523972147L, 960437564L, 1061106203L, 1061105413L, 1058485018L, 524228877L, 1060839206L, 992941871L, 1060973577L }, { 792080191L, 1061103884L, 1061100860L, 1060969759L, 926891567L, 926628410L, 792672573L, 1060975413L, 992945446L, 926887739L, 792534575L, 1027552559L, 1057963802L, 792667965L, 1061106238L, 1027480335L, 1060975931L, 524238622L, 977223465L, 792660031L, 1060977983L, 1059985186L, 1060842252L, 792674110L, 926891573L, 993928987L, 1060773690L, 1060978217L, 1061107231L, 842993463L, 926881555L, 1057960766L } }; private static final long[][] keysE = { { 926881555L, 1057960766L, 1061107231L, 842993463L, 1060773690L, 1060978217L, 926891573L, 993928987L, 1060842252L, 792674110L, 1060977983L, 1059985186L, 977223465L, 792660031L, 1060975931L, 524238622L, 1061106238L, 1027480335L, 1057963802L, 792667965L, 792534575L, 1027552559L, 992945446L, 926887739L, 792672573L, 1060975413L, 926891567L, 926628410L, 1061100860L, 1060969759L, 792080191L, 1061103884L }, { 992941871L, 1060973577L, 524228877L, 1060839206L, 1061105413L, 1058485018L, 960437564L, 1061106203L, 1060977706L, 523972147L, 1044327983L, 792658725L, 993994014L, 1059989292L, 1060713992L, 1061109007L, 1044331577L, 1043807028L, 1027023145L, 1060051769L, 524236071L, 524227898L, 910106408L, 1059005758L, 1061108284L, 1059915563L, 1061108246L, 926628648L, 658445333L, 1061105437L, 1058479411L, 1061095982L }, { 926882085L, 524226367L, 1061108535L, 1044261913L, 1061040669L, 792674075L, 1060978460L, 994000168L, 993736253L, 1061094702L, 1061107498L, 1061031740L, 1061108795L, 792401721L, 1060974120L, 1061108539L, 792669726L, 1061106751L, 1059006254L, 926889223L, 1061106959L, 1027417653L, 925842479L, 1061108237L, 792673310L, 1061104411L, 1061101340L, 925840175L, 1044324135L, 1060972330L, 1060312887L, 1061105191L } }; private long F(long l, long r, long[]key, int keyStart) { long work = ((r >> 4) | ((r << 28)&0xFFFFFFFFL)) ^ key[keyStart]; l ^= Spbox[6][(int)(work & 0x3f)]; l ^= Spbox[4][(int)((work >> 8) & 0x3f)]; l ^= Spbox[2][(int)((work >> 16) & 0x3f)]; l ^= Spbox[0][(int)((work >> 24) & 0x3f)]; work = r ^ key[keyStart+1]; l ^= Spbox[7][(int)(work & 0x3f)]; l ^= Spbox[5][(int)((work >> 8) & 0x3f)]; l ^= Spbox[3][(int)((work >> 16) & 0x3f)]; l ^= Spbox[1][(int)((work >> 24) & 0x3f)]; return l; } private static void cookey(long[] subkeys, long[] kn, int encrypt){ long[] raw; int increment; int i; raw = kn; int cookIndex = encrypt!=0 ? 0 : 30; increment = encrypt!=0 ? 1 : -3; for (i = 0; i < 16; i++) { subkeys[cookIndex] = ( (raw[i] & 0x00fc0000L) << 6)&0xFFFFFFFFL; subkeys[cookIndex] |= ( (raw[i] & 0x00000fc0L) << 10)&0xFFFFFFFFL; subkeys[cookIndex] |= (raw[i+1] & 0x00fc0000L) >> 10; subkeys[cookIndex++] |= (raw[i+1] & 0x00000fc0L) >> 6; subkeys[cookIndex] = ( (raw[i] & 0x0003f000L) << 12)&0xFFFFFFFFL; subkeys[cookIndex] |= ( (raw[i] & 0x0000003fL) << 16)&0xFFFFFFFFL; subkeys[cookIndex] |= (raw[i+1] & 0x0003f000L) >> 4; subkeys[cookIndex] |= (raw[i+1] & 0x0000003fL); cookIndex += increment; } } public void DES3_CBCInit(int type) { int encrypt = type; this._ctx.iv[0] = 4208289545L; _ctx.iv[1] = 1326297792L; _ctx.originalIV[0] = 4208289545L; _ctx.originalIV[1] = 1326297792L; _ctx.encrypt = encrypt; _ctx.subkeys = keysD; if(encrypt == 1) //如果是加密 _ctx.subkeys = keysE; else //如果是解密 _ctx.subkeys = keysD; } private void scrunch(long[] into, char[] outof, int outofStart){ int i = outofStart; into[0] = ( (outof[i++] & 0xffL) << 24)&0xFFFFFFFFL; into[0] |= ( ( (outof[i++] & 0xffL) << 16)&0xFFFFFFFFL); into[0] |= ( ( (outof[i++] & 0xffL) << 8)&0xFFFFFFFFL); into[0] |= (outof[i++] & 0xffL); into[1] = ( (outof[i++] & 0xffL) << 24)&0xFFFFFFFFL; into[1] |= ( ( (outof[i++] & 0xffL) << 16)&0xFFFFFFFFL); into[1] |= ( ( (outof[i++] & 0xffL) << 8)&0xFFFFFFFFL); into[1] |= (outof[i] & 0xffL); } private void unscrunch(char[] into,int intoStart, long[] outof){ int i=intoStart; into[i++] = (char)((outof[0] >> 24) & 0xffL); into[i++] = (char)((outof[0] >> 16) & 0xffL); into[i++] = (char)((outof[0] >> 8) & 0xffL); into[i++] = (char)( outof[0] & 0xffL); into[i++] = (char)((outof[1] >> 24) & 0xffL); into[i++] = (char)((outof[1] >> 16) & 0xffL); into[i++] = (char)((outof[1] >> 8) & 0xffL); into[i] = (char)( outof[1] & 0xffL); } public byte[] DES3_CBCUpdate(byte[] input) { int len = ((input.length+7)/8)*8; long[] inputBlock=new long[2], work=new long[2]; if(len % 8 != 0) /* length check */ return new byte[0]; int nCount = len/8; char[] chInput = new char[len]; for(int i=0; i< input.length; i++) chInput[i] = (char)(0x0FF & input[i]); char[][] chOutput = new char[nCount][8]; for(int i = 0; i < nCount; i++) { scrunch(inputBlock, chInput,8*i); /* Chain if encrypting. */ if(_ctx.encrypt == 0) { work[0] = inputBlock[0]; work[1] = inputBlock[1]; } else { work[0] = inputBlock[0] ^ _ctx.iv[0]; work[1] = inputBlock[1] ^ _ctx.iv[1]; } desfunc(work, _ctx.subkeys[0]); desfunc(work, _ctx.subkeys[1]); desfunc(work, _ctx.subkeys[2]); /* Chain if decrypting, then update IV. */ if(_ctx.encrypt == 0) { work[0] ^= _ctx.iv[0]; work[1] ^= _ctx.iv[1]; _ctx.iv[0] = inputBlock[0]; _ctx.iv[1] = inputBlock[1]; } else { _ctx.iv[0] = work[0]; _ctx.iv[1] = work[1]; } unscrunch(chOutput[i],0, work); } int size = nCount*8; byte[] output = new byte[size]; int index = 0; for(int i=0; i< nCount; i++) { output[index++] = (byte)chOutput[i][0]; output[index++] = (byte)chOutput[i][1]; output[index++] = (byte)chOutput[i][2]; output[index++] = (byte)chOutput[i][3]; output[index++] = (byte)chOutput[i][4]; output[index++] = (byte)chOutput[i][5]; output[index++] = (byte)chOutput[i][6]; output[index++] = (byte)chOutput[i][7]; } return output; } void desfunc(long[] block, long[] ks){ long left,right,work; left = block[0]; right = block[1]; work = ((left >> 4) ^ right) & 0x0f0f0f0f; right ^= work; left ^= (work << 4)&0xFFFFFFFFL; work = ((left >> 16) ^ right) & 0xffff; right ^= work; left ^= (work << 16)&0xFFFFFFFFL; work = ((right >> 2) ^ left) & 0x33333333; left ^= work; right ^= (work << 2)&0xFFFFFFFFL; work = ((right >> 8) ^ left) & 0xff00ff; left ^= work; right ^= (work << 8)&0xFFFFFFFFL; right = ( (right << 1)&0xFFFFFFFFL) | (right >> 31); work = (left ^ right) & 0xaaaaaaaa; left ^= work; right ^= work; left = ( (left << 1)&0xFFFFFFFFL) | (left >> 31); /* Now do the 16 rounds */ left = F(left,right,ks,0); right = F(right,left,ks,2); left = F(left,right,ks,4); right = F(right,left,ks,6); left = F(left,right,ks,8); right = F(right,left,ks,10); left = F(left,right,ks,12); right = F(right,left,ks,14); left = F(left,right,ks,16); right = F(right,left,ks,18); left = F(left,right,ks,20); right = F(right,left,ks,22); left = F(left,right,ks,24); right = F(right,left,ks,26); left = F(left,right,ks,28); right = F(right,left,ks,30); right = ((right << 31)&0xFFFFFFFFL) | (right >> 1); work = (left ^ right) & 0xaaaaaaaa; left ^= work; right ^= work; left = (left >> 1) | ((left << 31)&0xFFFFFFFFL); work = ((left >> 8) ^ right) & 0xff00ff; right ^= work; left ^= (work << 8)&0xFFFFFFFFL; work = ((left >> 2) ^ right) & 0x33333333; right ^= work; left ^= (work << 2)&0xFFFFFFFFL; work = ((right >> 16) ^ left) & 0xffff; left ^= work; right ^= (work << 16)&0xFFFFFFFFL; work = ((right >> 4) ^ left) & 0x0f0f0f0f; left ^= work; right ^= (work << 4)&0xFFFFFFFFL; block[0] = right; block[1] = left; } public static void main(String[] args) { String str = "adads343534/$90900"; Test des = new Test(); des.DES3_CBCInit(0); byte[] result = des.DES3_CBCUpdate(str.getBytes()); des.DES3_CBCInit(1); byte[] result2 = des.DES3_CBCUpdate(result); System.out.println("====加密========"+new String(result)); System.out.println("====解密========"+new String(result2)); } } class DES3_CBC_CTX_2{ long[][] subkeys = new long[3][32]; long[] iv = new long[2]; long[] originalIV = new long [2]; int encrypt; }
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本篇将详细介绍如何在网页前端使用JavaScript进行3DES加密,并在后端Java环境中进行解密。 一、3DES加密原理 3DES是DES的加强版,它使用了3个不同的56位密钥,通过3次独立的DES加密过程来提高安全性。具体流程如下...
总的来说,小程序与Java后端使用DES加密解密是数据安全的一种基础实践,但考虑到当前的网络安全需求,可能需要结合其他更强的加密技术以及安全策略来提升整体的安全水平。在实际应用中,还需要关注相关的法律法规,...
标题中的“java和C#通用des3加解密”指的是在Java和C#这两种不同的编程语言中实现DES(Data Encryption Standard)的加强版——3DES(Triple DES)加解密算法。3DES是一种广泛使用的对称加密算法,通过三次应用DES的...
在Java和JavaScript中实现3DES加密和解密,主要涉及以下几个关键知识点: 1. **密钥生成**:3DES需要一个168位的密钥,但通常我们提供的是一个128位或更短的密钥。Java中的`javax.crypto.SecretKeyFactory`和`javax...
在压缩包中,"DES3.jar"可能是一个包含3DES加密解密功能的Java库文件,可以被其他Java项目导入并直接使用。"使用说明.txt"则提供了关于如何使用这个库以及调用相关加密解密方法的指南。在实际操作中,开发者会按照这...
在本文中,我们将深入探讨基于DES加密的TCP聊天程序的实现,以及DES算法和TCP协议的相关知识。DES(Data Encryption Standard)是一种广泛应用的对称加密算法,它的历史可以追溯到20世纪70年代,由IBM的Lucifer算法...
本文将详细介绍如何在Java环境中实现DES加密和解密。 DES,全称为数据加密标准,基于Feistel密码结构,采用64位的密钥,但其中只有56位是真正参与加密过程的。DES分为两个主要阶段:加密和解密,这两个过程使用相同...