JavaScript与C#互通的DES加解密算法的实现
本文提供了一个能使JavaScript与C#互通的DES加解密算法的实现,在前台页面中用JavaScript版本的DES算法将数据加密之后,传到服务器端,在服务器端可用C#版本的DES解密算法将其解密,得到原始数据,以起到一定的保密作用.但基于算法本身和密钥保密程度方面的考虑,使用本算法加密后的数据,其保密程度不是很高,故请酌情使用.
声明:本文中的JavaScript版的DES加解密算法来自于互联网,但为了方便于转化成C#版本的代码,本人对其进行了细微调整.
JavaScript版本的算法实现代码如下:
//JS DES加密函数
function jsencrypt(key, message) {
var ciphertext = stringToHex(des(key, message, 1, 0));
return ciphertext;
}
//JS DES解密函数
function jsdecrypt(key, message) {
var plaintext = des(key, HexTostring(message), 0, 0);
return plaintext;
}
//加解密主函数
function des(key, message, encrypt, mode, iv) {
var spfunction1 = new Array(0x1010400, 0, 0x10000, 0x1010404, 0x1010004, 0x10404, 0x4, 0x10000, 0x400, 0x1010400, 0x1010404, 0x400, 0x1000404, 0x1010004, 0x1000000, 0x4, 0x404, 0x1000400, 0x1000400, 0x10400, 0x10400, 0x1010000, 0x1010000, 0x1000404, 0x10004, 0x1000004, 0x1000004, 0x10004, 0, 0x404, 0x10404, 0x1000000, 0x10000, 0x1010404, 0x4, 0x1010000, 0x1010400, 0x1000000, 0x1000000, 0x400, 0x1010004, 0x10000, 0x10400, 0x1000004, 0x400, 0x4, 0x1000404, 0x10404, 0x1010404, 0x10004, 0x1010000, 0x1000404, 0x1000004, 0x404, 0x10404, 0x1010400, 0x404, 0x1000400, 0x1000400, 0, 0x10004, 0x10400, 0, 0x1010004);
var spfunction2 = new Array(-0x7fef7fe0, -0x7fff8000, 0x8000, 0x108020, 0x100000, 0x20, -0x7fefffe0, -0x7fff7fe0, -0x7fffffe0, -0x7fef7fe0, -0x7fef8000, -0x8000000, -0x7fff8000, 0x100000, 0x20, -0x7fefffe0, 0x108000, 0x100020, -0x7fff7fe0, 0, -0x8000000, 0x8000, 0x108020, -0x7ff00000, 0x100020, -0x7fffffe0, 0, 0x108000, 0x8020, -0x7fef8000, -0x7ff00000, 0x8020, 0, 0x108020, -0x7fefffe0, 0x100000, -0x7fff7fe0, -0x7ff00000, -0x7fef8000, 0x8000, -0x7ff00000, -0x7fff8000, 0x20, -0x7fef7fe0, 0x108020, 0x20, 0x8000, -0x8000000, 0x8020, -0x7fef8000, 0x100000, -0x7fffffe0, 0x100020, -0x7fff7fe0, -0x7fffffe0, 0x100020, 0x108000, 0, -0x7fff8000, 0x8020, -0x8000000, -0x7fefffe0, -0x7fef7fe0, 0x108000);
var spfunction3 = new Array(0x208, 0x8020200, 0, 0x8020008, 0x8000200, 0, 0x20208, 0x8000200, 0x20008, 0x8000008, 0x8000008, 0x20000, 0x8020208, 0x20008, 0x8020000, 0x208, 0x8000000, 0x8, 0x8020200, 0x200, 0x20200, 0x8020000, 0x8020008, 0x20208, 0x8000208, 0x20200, 0x20000, 0x8000208, 0x8, 0x8020208, 0x200, 0x8000000, 0x8020200, 0x8000000, 0x20008, 0x208, 0x20000, 0x8020200, 0x8000200, 0, 0x200, 0x20008, 0x8020208, 0x8000200, 0x8000008, 0x200, 0, 0x8020008, 0x8000208, 0x20000, 0x8000000, 0x8020208, 0x8, 0x20208, 0x20200, 0x8000008, 0x8020000, 0x8000208, 0x208, 0x8020000, 0x20208, 0x8, 0x8020008, 0x20200);
var spfunction4 = new Array(0x802001, 0x2081, 0x2081, 0x80, 0x802080, 0x800081, 0x800001, 0x2001, 0, 0x802000, 0x802000, 0x802081, 0x81, 0, 0x800080, 0x800001, 0x1, 0x2000, 0x800000, 0x802001, 0x80, 0x800000, 0x2001, 0x2080, 0x800081, 0x1, 0x2080, 0x800080, 0x2000, 0x802080, 0x802081, 0x81, 0x800080, 0x800001, 0x802000, 0x802081, 0x81, 0, 0, 0x802000, 0x2080, 0x800080, 0x800081, 0x1, 0x802001, 0x2081, 0x2081, 0x80, 0x802081, 0x81, 0x1, 0x2000, 0x800001, 0x2001, 0x802080, 0x800081, 0x2001, 0x2080, 0x800000, 0x802001, 0x80, 0x800000, 0x2000, 0x802080);
var spfunction5 = new Array(0x100, 0x2080100, 0x2080000, 0x42000100, 0x80000, 0x100, 0x40000000, 0x2080000, 0x40080100, 0x80000, 0x2000100, 0x40080100, 0x42000100, 0x42080000, 0x80100, 0x40000000, 0x2000000, 0x40080000, 0x40080000, 0, 0x40000100, 0x42080100, 0x42080100, 0x2000100, 0x42080000, 0x40000100, 0, 0x42000000, 0x2080100, 0x2000000, 0x42000000, 0x80100, 0x80000, 0x42000100, 0x100, 0x2000000, 0x40000000, 0x2080000, 0x42000100, 0x40080100, 0x2000100, 0x40000000, 0x42080000, 0x2080100, 0x40080100, 0x100, 0x2000000, 0x42080000, 0x42080100, 0x80100, 0x42000000, 0x42080100, 0x2080000, 0, 0x40080000, 0x42000000, 0x80100, 0x2000100, 0x40000100, 0x80000, 0, 0x40080000, 0x2080100, 0x40000100);
var spfunction6 = new Array(0x20000010, 0x20400000, 0x4000, 0x20404010, 0x20400000, 0x10, 0x20404010, 0x400000, 0x20004000, 0x404010, 0x400000, 0x20000010, 0x400010, 0x20004000, 0x20000000, 0x4010, 0, 0x400010, 0x20004010, 0x4000, 0x404000, 0x20004010, 0x10, 0x20400010, 0x20400010, 0, 0x404010, 0x20404000, 0x4010, 0x404000, 0x20404000, 0x20000000, 0x20004000, 0x10, 0x20400010, 0x404000, 0x20404010, 0x400000, 0x4010, 0x20000010, 0x400000, 0x20004000, 0x20000000, 0x4010, 0x20000010, 0x20404010, 0x404000, 0x20400000, 0x404010, 0x20404000, 0, 0x20400010, 0x10, 0x4000, 0x20400000, 0x404010, 0x4000, 0x400010, 0x20004010, 0, 0x20404000, 0x20000000, 0x400010, 0x20004010);
var spfunction7 = new Array(0x200000, 0x4200002, 0x4000802, 0, 0x800, 0x4000802, 0x200802, 0x4200800, 0x4200802, 0x200000, 0, 0x4000002, 0x2, 0x4000000, 0x4200002, 0x802, 0x4000800, 0x200802, 0x200002, 0x4000800, 0x4000002, 0x4200000, 0x4200800, 0x200002, 0x4200000, 0x800, 0x802, 0x4200802, 0x200800, 0x2, 0x4000000, 0x200800, 0x4000000, 0x200800, 0x200000, 0x4000802, 0x4000802, 0x4200002, 0x4200002, 0x2, 0x200002, 0x4000000, 0x4000800, 0x200000, 0x4200800, 0x802, 0x200802, 0x4200800, 0x802, 0x4000002, 0x4200802, 0x4200000, 0x200800, 0, 0x2, 0x4200802, 0, 0x200802, 0x4200000, 0x800, 0x4000002, 0x4000800, 0x800, 0x200002);
var spfunction8 = new Array(0x10001040, 0x1000, 0x40000, 0x10041040, 0x10000000, 0x10001040, 0x40, 0x10000000, 0x40040, 0x10040000, 0x10041040, 0x41000, 0x10041000, 0x41040, 0x1000, 0x40, 0x10040000, 0x10000040, 0x10001000, 0x1040, 0x41000, 0x40040, 0x10040040, 0x10041000, 0x1040, 0, 0, 0x10040040, 0x10000040, 0x10001000, 0x41040, 0x40000, 0x41040, 0x40000, 0x10041000, 0x1000, 0x40, 0x10040040, 0x1000, 0x41040, 0x10001000, 0x40, 0x10000040, 0x10040000, 0x10040040, 0x10000000, 0x40000, 0x10001040, 0, 0x10041040, 0x40040, 0x10000040, 0x10040000, 0x10001000, 0x10001040, 0, 0x10041040, 0x41000, 0x41000, 0x1040, 0x1040, 0x40040, 0x10000000, 0x10041000);
var keys = des_createKeys(key);
var m = 0, i, j, temp, temp2, right1, right2, left, right, looping;
var cbcleft, cbcleft2, cbcright, cbcright2;
var endloop, loopinc;
var len = message.length;
var chunk = 0;
var iterations = keys.length == 32 ? 3 : 9;
if (iterations == 3) {
looping = encrypt ? new Array(0, 32, 2) : new Array(30, -2, -2);
}
else {
looping = encrypt ? new Array(0, 32, 2, 62, 30, -2, 64, 96, 2) : new Array(94, 62, -2, 32, 64, 2, 30, -2, -2);
}
message += "\0\0\0\0\0\0\0\0";
result = "";
tempresult = "";
if (mode == 1) {
cbcleft = (iv.charCodeAt(m++) << 24) | (iv.charCodeAt(m++) << 16) | (iv.charCodeAt(m++) << 8) | iv.charCodeAt(m++);
cbcright = (iv.charCodeAt(m++) << 24) | (iv.charCodeAt(m++) << 16) | (iv.charCodeAt(m++) << 8) | iv.charCodeAt(m++); m = 0;
}
while (m < len) {
if (encrypt) {
left = (message.charCodeAt(m++) << 16) | message.charCodeAt(m++); right = (message.charCodeAt(m++) << 16) | message.charCodeAt(m++);
}
else {
left = (message.charCodeAt(m++) << 24) | (message.charCodeAt(m++) << 16) | (message.charCodeAt(m++) << 8) | message.charCodeAt(m++);
right = (message.charCodeAt(m++) << 24) | (message.charCodeAt(m++) << 16) | (message.charCodeAt(m++) << 8) | message.charCodeAt(m++);
}
if (mode == 1) {
if (encrypt) {
left ^= cbcleft; right ^= cbcright;
}
else {
cbcleft2 = cbcleft; cbcright2 = cbcright; cbcleft = left; cbcright = right;
}
}
temp = ((left >>> 4) ^ right) & 0x0f0f0f0f;
right ^= temp;
left ^= (temp << 4);
temp = ((left >>> 16) ^ right) & 0x0000ffff;
right ^= temp;
left ^= (temp << 16);
temp = ((right >>> 2) ^ left) & 0x33333333;
left ^= temp;
right ^= (temp << 2);
temp = ((right >>> 8) ^ left) & 0x00ff00ff;
left ^= temp; right ^= (temp << 8);
temp = ((left >>> 1) ^ right) & 0x55555555;
right ^= temp;
left ^= (temp << 1);
left = ((left << 1) | (left >>> 31));
right = ((right << 1) | (right >>> 31));
for (j = 0; j < iterations; j += 3) {
endloop = looping[j + 1];
loopinc = looping[j + 2];
for (i = looping[j]; i != endloop; i += loopinc) {
right1 = right ^ keys[i];
right2 = ((right >>> 4) | (right << 28)) ^ keys[i + 1];
temp = left;
left = right;
right = temp ^ (spfunction2[(right1 >>> 24) & 0x3f] | spfunction4[(right1 >>> 16) & 0x3f] | spfunction6[(right1 >>> 8) & 0x3f] | spfunction8[right1 & 0x3f] | spfunction1[(right2 >>> 24) & 0x3f] | spfunction3[(right2 >>> 16) & 0x3f] | spfunction5[(right2 >>> 8) & 0x3f] | spfunction7[right2 & 0x3f]);
}
temp = left;
left = right;
right = temp;
}
left = ((left >>> 1) | (left << 31));
right = ((right >>> 1) | (right << 31));
temp = ((left >>> 1) ^ right) & 0x55555555;
right ^= temp; left ^= (temp << 1);
temp = ((right >>> 8) ^ left) & 0x00ff00ff;
left ^= temp; right ^= (temp << 8);
temp = ((right >>> 2) ^ left) & 0x33333333;
left ^= temp; right ^= (temp << 2);
temp = ((left >>> 16) ^ right) & 0x0000ffff;
right ^= temp; left ^= (temp << 16);
temp = ((left >>> 4) ^ right) & 0x0f0f0f0f;
right ^= temp; left ^= (temp << 4);
if (mode == 1) {
if (encrypt) {
cbcleft = left;
cbcright = right;
}
else {
left ^= cbcleft2;
right ^= cbcright2;
}
}
if (encrypt) {
tempresult += String.fromCharCode((left >>> 24), ((left >>> 16) & 0xff), ((left >>> 8) & 0xff), (left & 0xff), (right >>> 24), ((right >>> 16) & 0xff), ((right >>> 8) & 0xff), (right & 0xff));
}
else {
tempresult += String.fromCharCode(((left >>> 16) & 0xffff), (left & 0xffff), ((right >>> 16) & 0xffff), (right & 0xffff));
}
encrypt ? chunk += 16 : chunk += 8;
if (chunk == 512) {
result += tempresult;
tempresult = "";
chunk = 0;
}
}
return result + tempresult;
}
//密钥生成函数
function des_createKeys(key) {
pc2bytes0 = new Array(0, 0x4, 0x20000000, 0x20000004, 0x10000, 0x10004, 0x20010000, 0x20010004, 0x200, 0x204, 0x20000200, 0x20000204, 0x10200, 0x10204, 0x20010200, 0x20010204);
pc2bytes1 = new Array(0, 0x1, 0x100000, 0x100001, 0x4000000, 0x4000001, 0x4100000, 0x4100001, 0x100, 0x101, 0x100100, 0x100101, 0x4000100, 0x4000101, 0x4100100, 0x4100101);
pc2bytes2 = new Array(0, 0x8, 0x800, 0x808, 0x1000000, 0x1000008, 0x1000800, 0x1000808, 0, 0x8, 0x800, 0x808, 0x1000000, 0x1000008, 0x1000800, 0x1000808);
pc2bytes3 = new Array(0, 0x200000, 0x8000000, 0x8200000, 0x2000, 0x202000, 0x8002000, 0x8202000, 0x20000, 0x220000, 0x8020000, 0x8220000, 0x22000, 0x222000, 0x8022000, 0x8222000);
pc2bytes4 = new Array(0, 0x40000, 0x10, 0x40010, 0, 0x40000, 0x10, 0x40010, 0x1000, 0x41000, 0x1010, 0x41010, 0x1000, 0x41000, 0x1010, 0x41010);
pc2bytes5 = new Array(0, 0x400, 0x20, 0x420, 0, 0x400, 0x20, 0x420, 0x2000000, 0x2000400, 0x2000020, 0x2000420, 0x2000000, 0x2000400, 0x2000020, 0x2000420);
pc2bytes6 = new Array(0, 0x10000000, 0x80000, 0x10080000, 0x2, 0x10000002, 0x80002, 0x10080002, 0, 0x10000000, 0x80000, 0x10080000, 0x2, 0x10000002, 0x80002, 0x10080002);
pc2bytes7 = new Array(0, 0x10000, 0x800, 0x10800, 0x20000000, 0x20010000, 0x20000800, 0x20010800, 0x20000, 0x30000, 0x20800, 0x30800, 0x20020000, 0x20030000, 0x20020800, 0x20030800);
pc2bytes8 = new Array(0, 0x40000, 0, 0x40000, 0x2, 0x40002, 0x2, 0x40002, 0x2000000, 0x2040000, 0x2000000, 0x2040000, 0x2000002, 0x2040002, 0x2000002, 0x2040002);
pc2bytes9 = new Array(0, 0x10000000, 0x8, 0x10000008, 0, 0x10000000, 0x8, 0x10000008, 0x400, 0x10000400, 0x408, 0x10000408, 0x400, 0x10000400, 0x408, 0x10000408);
pc2bytes10 = new Array(0, 0x20, 0, 0x20, 0x100000, 0x100020, 0x100000, 0x100020, 0x2000, 0x2020, 0x2000, 0x2020, 0x102000, 0x102020, 0x102000, 0x102020);
pc2bytes11 = new Array(0, 0x1000000, 0x200, 0x1000200, 0x200000, 0x1200000, 0x200200, 0x1200200, 0x4000000, 0x5000000, 0x4000200, 0x5000200, 0x4200000, 0x5200000, 0x4200200, 0x5200200);
pc2bytes12 = new Array(0, 0x1000, 0x8000000, 0x8001000, 0x80000, 0x81000, 0x8080000, 0x8081000, 0x10, 0x1010, 0x8000010, 0x8001010, 0x80010, 0x81010, 0x8080010, 0x8081010);
pc2bytes13 = new Array(0, 0x4, 0x100, 0x104, 0, 0x4, 0x100, 0x104, 0x1, 0x5, 0x101, 0x105, 0x1, 0x5, 0x101, 0x105);
var iterations = key.length >= 24 ? 3 : 1;
var keys = new Array(32 * iterations);
var shifts = new Array(0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0);
var lefttemp, righttemp, m = 0, n = 0, temp;
for (var j = 0; j < iterations; j++) {
left = (key.charCodeAt(m++) << 24) | (key.charCodeAt(m++) << 16) | (key.charCodeAt(m++) << 8) | key.charCodeAt(m++);
right = (key.charCodeAt(m++) << 24) | (key.charCodeAt(m++) << 16) | (key.charCodeAt(m++) << 8) | key.charCodeAt(m++);
temp = ((left >>> 4) ^ right) & 0x0f0f0f0f;
right ^= temp;
left ^= (temp << 4);
temp = ((right >>> -16) ^ left) & 0x0000ffff;
left ^= temp;
right ^= (temp << -16);
temp = ((left >>> 2) ^ right) & 0x33333333;
right ^= temp;
left ^= (temp << 2);
temp = ((right >>> -16) ^ left) & 0x0000ffff;
left ^= temp; right ^= (temp << -16);
temp = ((left >>> 1) ^ right) & 0x55555555;
right ^= temp; left ^= (temp << 1);
temp = ((right >>> 8) ^ left) & 0x00ff00ff;
left ^= temp; right ^= (temp << 8);
temp = ((left >>> 1) ^ right) & 0x55555555;
right ^= temp; left ^= (temp << 1);
temp = (left << 8) | ((right >>> 20) & 0x000000f0);
left = (right << 24) | ((right << 8) & 0xff0000) | ((right >>> 8) & 0xff00) | ((right >>> 24) & 0xf0);
right = temp;
for (i = 0; i < shifts.length; i++) {
if (shifts[i]) {
left = (left << 2) | (left >>> 26); right = (right << 2) | (right >>> 26);
}
else {
left = (left << 1) | (left >>> 27);
right = (right << 1) | (right >>> 27);
}
left &= -0xf;
right &= -0xf;
lefttemp = pc2bytes0[left >>> 28] | pc2bytes1[(left >>> 24) & 0xf] | pc2bytes2[(left >>> 20) & 0xf] | pc2bytes3[(left >>> 16) & 0xf] | pc2bytes4[(left >>> 12) & 0xf] | pc2bytes5[(left >>> 8) & 0xf] | pc2bytes6[(left >>> 4) & 0xf];
righttemp = pc2bytes7[right >>> 28] | pc2bytes8[(right >>> 24) & 0xf] | pc2bytes9[(right >>> 20) & 0xf] | pc2bytes10[(right >>> 16) & 0xf] | pc2bytes11[(right >>> 12) & 0xf] | pc2bytes12[(right >>> 8) & 0xf] | pc2bytes13[(right >>> 4) & 0xf];
temp = ((righttemp >>> 16) ^ lefttemp) & 0x0000ffff;
keys[n++] = lefttemp ^ temp;
keys[n++] = righttemp ^ (temp << 16);
}
}
return keys;
}
//将普通的字符串转换成16进制代码的字符串
function stringToHex(s) {
var r = ""; var hexes = new Array("0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F");
for (var i = 0; i < (s.length); i++) { r += hexes[s.charCodeAt(i) >> 4] + hexes[s.charCodeAt(i) & 0xf]; }
return r;
}
//将16进制代码的字符串转换成普通的字符串
function HexTostring(s) {
var r = "";
for (var i = 0; i < s.length; i += 2) { var sxx = parseInt(s.substring(i, i + 2), 16); r += String.fromCharCode(sxx); }
return r;
}
与上边的JavaScript版的算法对应的C#版本的算法实现代码如下:
//C# DES加解密主函数
private static string DES(string key, string strMessage, bool isEncrypt, int mode, string strIV)
{
int[] spfunction1 = new int[] { 0x1010400, 0, 0x10000, 0x1010404, 0x1010004, 0x10404, 0x4, 0x10000, 0x400, 0x1010400, 0x1010404, 0x400, 0x1000404, 0x1010004, 0x1000000, 0x4, 0x404, 0x1000400, 0x1000400, 0x10400, 0x10400, 0x1010000, 0x1010000, 0x1000404, 0x10004, 0x1000004, 0x1000004, 0x10004, 0, 0x404, 0x10404, 0x1000000, 0x10000, 0x1010404, 0x4, 0x1010000, 0x1010400, 0x1000000, 0x1000000, 0x400, 0x1010004, 0x10000, 0x10400, 0x1000004, 0x400, 0x4, 0x1000404, 0x10404, 0x1010404, 0x10004, 0x1010000, 0x1000404, 0x1000004, 0x404, 0x10404, 0x1010400, 0x404, 0x1000400, 0x1000400, 0, 0x10004, 0x10400, 0, 0x1010004 };
int[] spfunction2 = new int[] { -0x7fef7fe0, -0x7fff8000, 0x8000, 0x108020, 0x100000, 0x20, -0x7fefffe0, -0x7fff7fe0, -0x7fffffe0, -0x7fef7fe0, -0x7fef8000, -0x8000000, -0x7fff8000, 0x100000, 0x20, -0x7fefffe0, 0x108000, 0x100020, -0x7fff7fe0, 0, -0x8000000, 0x8000, 0x108020, -0x7ff00000, 0x100020, -0x7fffffe0, 0, 0x108000, 0x8020, -0x7fef8000, -0x7ff00000, 0x8020, 0, 0x108020, -0x7fefffe0, 0x100000, -0x7fff7fe0, -0x7ff00000, -0x7fef8000, 0x8000, -0x7ff00000, -0x7fff8000, 0x20, -0x7fef7fe0, 0x108020, 0x20, 0x8000, -0x8000000, 0x8020, -0x7fef8000, 0x100000, -0x7fffffe0, 0x100020, -0x7fff7fe0, -0x7fffffe0, 0x100020, 0x108000, 0, -0x7fff8000, 0x8020, -0x8000000, -0x7fefffe0, -0x7fef7fe0, 0x108000 };
int[] spfunction3 = new int[] { 0x208, 0x8020200, 0, 0x8020008, 0x8000200, 0, 0x20208, 0x8000200, 0x20008, 0x8000008, 0x8000008, 0x20000, 0x8020208, 0x20008, 0x8020000, 0x208, 0x8000000, 0x8, 0x8020200, 0x200, 0x20200, 0x8020000, 0x8020008, 0x20208, 0x8000208, 0x20200, 0x20000, 0x8000208, 0x8, 0x8020208, 0x200, 0x8000000, 0x8020200, 0x8000000, 0x20008, 0x208, 0x20000, 0x8020200, 0x8000200, 0, 0x200, 0x20008, 0x8020208, 0x8000200, 0x8000008, 0x200, 0, 0x8020008, 0x8000208, 0x20000, 0x8000000, 0x8020208, 0x8, 0x20208, 0x20200, 0x8000008, 0x8020000, 0x8000208, 0x208, 0x8020000, 0x20208, 0x8, 0x8020008, 0x20200 };
int[] spfunction4 = new int[] { 0x802001, 0x2081, 0x2081, 0x80, 0x802080, 0x800081, 0x800001, 0x2001, 0, 0x802000, 0x802000, 0x802081, 0x81, 0, 0x800080, 0x800001, 0x1, 0x2000, 0x800000, 0x802001, 0x80, 0x800000, 0x2001, 0x2080, 0x800081, 0x1, 0x2080, 0x800080, 0x2000, 0x802080, 0x802081, 0x81, 0x800080, 0x800001, 0x802000, 0x802081, 0x81, 0, 0, 0x802000, 0x2080, 0x800080, 0x800081, 0x1, 0x802001, 0x2081, 0x2081, 0x80, 0x802081, 0x81, 0x1, 0x2000, 0x800001, 0x2001, 0x802080, 0x800081, 0x2001, 0x2080, 0x800000, 0x802001, 0x80, 0x800000, 0x2000, 0x802080 };
int[] spfunction5 = new int[] { 0x100, 0x2080100, 0x2080000, 0x42000100, 0x80000, 0x100, 0x40000000, 0x2080000, 0x40080100, 0x80000, 0x2000100, 0x40080100, 0x42000100, 0x42080000, 0x80100, 0x40000000, 0x2000000, 0x40080000, 0x40080000, 0, 0x40000100, 0x42080100, 0x42080100, 0x2000100, 0x42080000, 0x40000100, 0, 0x42000000, 0x2080100, 0x2000000, 0x42000000, 0x80100, 0x80000, 0x42000100, 0x100, 0x2000000, 0x40000000, 0x2080000, 0x42000100, 0x40080100, 0x2000100, 0x40000000, 0x42080000, 0x2080100, 0x40080100, 0x100, 0x2000000, 0x42080000, 0x42080100, 0x80100, 0x42000000, 0x42080100, 0x2080000, 0, 0x40080000, 0x42000000, 0x80100, 0x2000100, 0x40000100, 0x80000, 0, 0x40080000, 0x2080100, 0x40000100 };
int[] spfunction6 = new int[] { 0x20000010, 0x20400000, 0x4000, 0x20404010, 0x20400000, 0x10, 0x20404010, 0x400000, 0x20004000, 0x404010, 0x400000, 0x20000010, 0x400010, 0x20004000, 0x20000000, 0x4010, 0, 0x400010, 0x20004010, 0x4000, 0x404000, 0x20004010, 0x10, 0x20400010, 0x20400010, 0, 0x404010, 0x20404000, 0x4010, 0x404000, 0x20404000, 0x20000000, 0x20004000, 0x10, 0x20400010, 0x404000, 0x20404010, 0x400000, 0x4010, 0x20000010, 0x400000, 0x20004000, 0x20000000, 0x4010, 0x20000010, 0x20404010, 0x404000, 0x20400000, 0x404010, 0x20404000, 0, 0x20400010, 0x10, 0x4000, 0x20400000, 0x404010, 0x4000, 0x400010, 0x20004010, 0, 0x20404000, 0x20000000, 0x400010, 0x20004010 };
int[] spfunction7 = new int[] { 0x200000, 0x4200002, 0x4000802, 0, 0x800, 0x4000802, 0x200802, 0x4200800, 0x4200802, 0x200000, 0, 0x4000002, 0x2, 0x4000000, 0x4200002, 0x802, 0x4000800, 0x200802, 0x200002, 0x4000800, 0x4000002, 0x4200000, 0x4200800, 0x200002, 0x4200000, 0x800, 0x802, 0x4200802, 0x200800, 0x2, 0x4000000, 0x200800, 0x4000000, 0x200800, 0x200000, 0x4000802, 0x4000802, 0x4200002, 0x4200002, 0x2, 0x200002, 0x4000000, 0x4000800, 0x200000, 0x4200800, 0x802, 0x200802, 0x4200800, 0x802, 0x4000002, 0x4200802, 0x4200000, 0x200800, 0, 0x2, 0x4200802, 0, 0x200802, 0x4200000, 0x800, 0x4000002, 0x4000800, 0x800, 0x200002 };
int[] spfunction8 = new int[] { 0x10001040, 0x1000, 0x40000, 0x10041040, 0x10000000, 0x10001040, 0x40, 0x10000000, 0x40040, 0x10040000, 0x10041040, 0x41000, 0x10041000, 0x41040, 0x1000, 0x40, 0x10040000, 0x10000040, 0x10001000, 0x1040, 0x41000, 0x40040, 0x10040040, 0x10041000, 0x1040, 0, 0, 0x10040040, 0x10000040, 0x10001000, 0x41040, 0x40000, 0x41040, 0x40000, 0x10041000, 0x1000, 0x40, 0x10040040, 0x1000, 0x41040, 0x10001000, 0x40, 0x10000040, 0x10040000, 0x10040040, 0x10000000, 0x40000, 0x10001040, 0, 0x10041040, 0x40040, 0x10000040, 0x10040000, 0x10001000, 0x10001040, 0, 0x10041040, 0x41000, 0x41000, 0x1040, 0x1040, 0x40040, 0x10000000, 0x10041000 };
int[] keys = DES_CreateKey(key);
int m = 0, i, j, temp, right1, right2, left, right;
int[] looping;
int cbcleft = 0, cbcleft2 = 0, cbcright = 0, cbcright2 = 0;
int endloop, loopinc;
int len = strMessage.Length;
int chunk = 0;
int iterations = (keys.Length == 32) ? 3 : 9;
if (iterations == 3)
{
looping = isEncrypt ? new int[] { 0, 32, 2 } : new int[] { 30, -2, -2 };
}
else
{
looping = isEncrypt ? new int[] { 0, 32, 2, 62, 30, -2, 64, 96, 2 } : new int[] { 94, 62, -2, 32, 64, 2, 30, -2, -2 };
}
strMessage += "\0\0\0\0\0\0\0\0";
StringBuilder result = new StringBuilder();
StringBuilder tempresult = new StringBuilder();
if (mode == 1)
{
int ivLen = strIV.Length;
char[] civ = strIV.ToCharArray();
int[] iv = new int[ivLen + 8];
for (i = 0; i < ivLen; i++)
{
iv[i] = Convert.ToInt32(civ[i]);
}
for (i = ivLen; i < (ivLen + 8); ++i)
{
iv[i] = 0;
}
cbcleft = (iv[m++] << 24) | (iv[m++] << 16) | (iv[m++] << 8) | iv[m++];
cbcright = (iv[m++] << 24) | (iv[m++] << 16) | (iv[m++] << 8) | iv[m++];
m = 0;
}
while (m < len)
{
int[] message = new int[len + 8];
char[] cm = strMessage.ToCharArray();
for (i = 0; i < (len + 8); ++i)
{
message[i] = Convert.ToInt32(cm[i]);
}
if (isEncrypt)
{
left = (message[m++] << 16) | message[m++];
right = (message[m++] << 16) | message[m++];
}
else
{
left = (message[m++] << 24) | (message[m++] << 16) | (message[m++] << 8) | message[m++];
right = (message[m++] << 24) | (message[m++] << 16) | (message[m++] << 8) | message[m++];
}
if (mode == 1)
{
if (isEncrypt)
{
left ^= cbcleft;
right ^= cbcright;
}
else
{
cbcleft2 = cbcleft;
cbcright2 = cbcright;
cbcleft = left;
cbcright = right;
}
}
temp = (MoveByte(left, 4) ^ right) & 0x0f0f0f0f;
right ^= temp;
left ^= (temp << 4);
temp = (MoveByte(left, 16) ^ right) & 0x0000ffff;
right ^= temp;
left ^= (temp << 16);
temp = (MoveByte(right, 2) ^ left) & 0x33333333;
left ^= temp;
right ^= (temp << 2);
temp = (MoveByte(right, 8) ^ left) & 0x00ff00ff;
left ^= temp; right ^= (temp << 8);
temp = (MoveByte(left, 1) ^ right) & 0x55555555;
right ^= temp;
left ^= (temp << 1);
left = ((left << 1) | MoveByte(left, 31));
right = ((right << 1) | MoveByte(right, 31));
for (j = 0; j < iterations; j += 3)
{
endloop = looping[j + 1];
loopinc = looping[j + 2];
for (i = looping[j]; i != endloop; i += loopinc)
{
right1 = right ^ keys[i];
right2 = (MoveByte(right, 4) | (right << 28)) ^ keys[i + 1];
temp = left;
left = right;
right = temp ^ (spfunction2[MoveByte(right1, 24) & 0x3f] | spfunction4[MoveByte(right1, 16) & 0x3f] | spfunction6[MoveByte(right1, 8) & 0x3f] | spfunction8[right1 & 0x3f] | spfunction1[MoveByte(right2, 24) & 0x3f] | spfunction3[MoveByte(right2, 16) & 0x3f] | spfunction5[MoveByte(right2, 8) & 0x3f] | spfunction7[right2 & 0x3f]);
}
temp = left;
left = right;
right = temp;
}
left = (MoveByte(left, 1) | (left << 31));
right = (MoveByte(right, 1) | (right << 31));
temp = (MoveByte(left, 1) ^ right) & 0x55555555;
right ^= temp;
left ^= (temp << 1);
temp = (MoveByte(right, 8) ^ left) & 0x00ff00ff;
left ^= temp; right ^= (temp << 8);
temp = (MoveByte(right, 2) ^ left) & 0x33333333;
left ^= temp;
right ^= (temp << 2);
temp = (MoveByte(left, 16) ^ right) & 0x0000ffff;
right ^= temp;
left ^= (temp << 16);
temp = (MoveByte(left, 4) ^ right) & 0x0f0f0f0f;
right ^= temp;
left ^= (temp << 4);
if (mode == 1)
{
if (isEncrypt)
{
cbcleft = left;
cbcright = right;
}
else
{
left ^= cbcleft2;
right ^= cbcright2;
}
}
if (isEncrypt)
{
tempresult.Append(Convert.ToChar((MoveByte(left, 24))));
tempresult.Append(Convert.ToChar((MoveByte(left, 16) & 0xff)));
tempresult.Append(Convert.ToChar((MoveByte(left, 8) & 0xff)));
tempresult.Append(Convert.ToChar((left & 0xff)));
tempresult.Append(Convert.ToChar(MoveByte(right, 24)));
tempresult.Append(Convert.ToChar((MoveByte(right, 16) & 0xff)));
tempresult.Append(Convert.ToChar((MoveByte(right, 8) & 0xff)));
tempresult.Append(Convert.ToChar((right & 0xff)));
}
else
{
tempresult.Append(Convert.ToChar(((MoveByte(left, 16) & 0xffff))));
tempresult.Append(Convert.ToChar((left & 0xffff)));
tempresult.Append(Convert.ToChar((MoveByte(right, 16) & 0xffff)));
tempresult.Append(Convert.ToChar((right & 0xffff)));
}
if (isEncrypt)
{
chunk += 16;
}
else
{
chunk += 8;
}
if (chunk == 512)
{
result.Append(tempresult.ToString());
tempresult.Remove(0, tempresult.Length);
chunk = 0;
}
}
return result.ToString() + tempresult.ToString();
}
//密钥生成函数
private static int[] DES_CreateKey(string strKey)
{
int[] pc2bytes0 = new int[] { 0, 0x4, 0x20000000, 0x20000004, 0x10000, 0x10004, 0x20010000, 0x20010004, 0x200, 0x204, 0x20000200, 0x20000204, 0x10200, 0x10204, 0x20010200, 0x20010204 };
int[] pc2bytes1 = new int[] { 0, 0x1, 0x100000, 0x100001, 0x4000000, 0x4000001, 0x4100000, 0x4100001, 0x100, 0x101, 0x100100, 0x100101, 0x4000100, 0x4000101, 0x4100100, 0x4100101 };
int[] pc2bytes2 = new int[] { 0, 0x8, 0x800, 0x808, 0x1000000, 0x1000008, 0x1000800, 0x1000808, 0, 0x8, 0x800, 0x808, 0x1000000, 0x1000008, 0x1000800, 0x1000808 };
int[] pc2bytes3 = new int[] { 0, 0x200000, 0x8000000, 0x8200000, 0x2000, 0x202000, 0x8002000, 0x8202000, 0x20000, 0x220000, 0x8020000, 0x8220000, 0x22000, 0x222000, 0x8022000, 0x8222000 };
int[] pc2bytes4 = new int[] { 0, 0x40000, 0x10, 0x40010, 0, 0x40000, 0x10, 0x40010, 0x1000, 0x41000, 0x1010, 0x41010, 0x1000, 0x41000, 0x1010, 0x41010 };
int[] pc2bytes5 = new int[] { 0, 0x400, 0x20, 0x420, 0, 0x400, 0x20, 0x420, 0x2000000, 0x2000400, 0x2000020, 0x2000420, 0x2000000, 0x2000400, 0x2000020, 0x2000420 };
int[] pc2bytes6 = new int[] { 0, 0x10000000, 0x80000, 0x10080000, 0x2, 0x10000002, 0x80002, 0x10080002, 0, 0x10000000, 0x80000, 0x10080000, 0x2, 0x10000002, 0x80002, 0x10080002 };
int[] pc2bytes7 = new int[] { 0, 0x10000, 0x800, 0x10800, 0x20000000, 0x20010000, 0x20000800, 0x20010800, 0x20000, 0x30000, 0x20800, 0x30800, 0x20020000, 0x20030000, 0x20020800, 0x20030800 };
int[] pc2bytes8 = new int[] { 0, 0x40000, 0, 0x40000, 0x2, 0x40002, 0x2, 0x40002, 0x2000000, 0x2040000, 0x2000000, 0x2040000, 0x2000002, 0x2040002, 0x2000002, 0x2040002 };
int[] pc2bytes9 = new int[] { 0, 0x10000000, 0x8, 0x10000008, 0, 0x10000000, 0x8, 0x10000008, 0x400, 0x10000400, 0x408, 0x10000408, 0x400, 0x10000400, 0x408, 0x10000408 };
int[] pc2bytes10 = new int[] { 0, 0x20, 0, 0x20, 0x100000, 0x100020, 0x100000, 0x100020, 0x2000, 0x2020, 0x2000, 0x2020, 0x102000, 0x102020, 0x102000, 0x102020 };
int[] pc2bytes11 = new int[] { 0, 0x1000000, 0x200, 0x1000200, 0x200000, 0x1200000, 0x200200, 0x1200200, 0x4000000, 0x5000000, 0x4000200, 0x5000200, 0x4200000, 0x5200000, 0x4200200, 0x5200200 };
int[] pc2bytes12 = new int[] { 0, 0x1000, 0x8000000, 0x8001000, 0x80000, 0x81000, 0x8080000, 0x8081000, 0x10, 0x1010, 0x8000010, 0x8001010, 0x80010, 0x81010, 0x8080010, 0x8081010 };
int[] pc2bytes13 = new int[] { 0, 0x4, 0x100, 0x104, 0, 0x4, 0x100, 0x104, 0x1, 0x5, 0x101, 0x105, 0x1, 0x5, 0x101, 0x105 };
int iterations = strKey.Length >= 24 ? 3 : 1;
int[] keys = new int[32 * iterations];
int[] shifts = new int[] { 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0 };
int lefttemp, righttemp;
int m = 0, n = 0;
int left, right, temp;
char[] ckey = strKey.ToCharArray();
int strLen = strKey.Length;
int keyLen = strLen + iterations * 8;
int[] key = new int[keyLen];
for (int i = 0; i < strLen; ++i)
{
key[i] = Convert.ToInt32(ckey[i]);
}
for (int i = strLen; i < keyLen; ++i)
{
key[i] = 0;
}
for (int j = 0; j < iterations; j++)
{
left = (key[m++] << 24) | (key[m++] << 16) | (key[m++] << 8) | key[m++];
right = (key[m++] << 24) | (key[m++] << 16) | (key[m++] << 8) | key[m++];
temp = (MoveByte(left, 4) ^ right) & 0x0f0f0f0f;
right ^= temp;
left ^= (temp << 4);
temp = (MoveByte(right, -16) ^ left) & 0x0000ffff;
left ^= temp;
right ^= (temp << -16);
temp = (MoveByte(left, 2) ^ right) & 0x33333333;
right ^= temp;
left ^= (temp << 2);
temp = (MoveByte(right, -16) ^ left) & 0x0000ffff;
left ^= temp;
right ^= (temp << -16);
temp = (MoveByte(left, 1) ^ right) & 0x55555555;
right ^= temp;
left ^= (temp << 1);
temp = (MoveByte(right, 8) ^ left) & 0x00ff00ff;
left ^= temp;
right ^= (temp << 8);
temp = (MoveByte(left, 1) ^ right) & 0x55555555;
right ^= temp;
left ^= (temp << 1);
temp = (left << 8) | (MoveByte(right, 20) & 0x000000f0);
left = (right << 24) | ((right << 8) & 0xff0000) | (MoveByte(right, 8) & 0xff00) | (MoveByte(right, 24) & 0xf0);
right = temp;
int shiftLen = shifts.Length;
for (int i = 0; i < shiftLen; i++)
{
if (shifts[i] == 1)
{
left = (left << 2) | MoveByte(left, 26);
right = (right << 2) | MoveByte(right, 26);
}
else
{
left = (left << 1) | MoveByte(left, 27);
right = (right << 1) | MoveByte(right, 27);
}
left &= -0xf;
right &= -0xf;
lefttemp = pc2bytes0[MoveByte(left, 28)] | pc2bytes1[MoveByte(left, 24) & 0xf] | pc2bytes2[MoveByte(left, 20) & 0xf] | pc2bytes3[MoveByte(left, 16) & 0xf] | pc2bytes4[MoveByte(left, 12) & 0xf] | pc2bytes5[MoveByte(left, 8) & 0xf] | pc2bytes6[MoveByte(left, 4) & 0xf];
righttemp = pc2bytes7[MoveByte(right, 28)] | pc2bytes8[MoveByte(right, 24) & 0xf] | pc2bytes9[MoveByte(right, 20) & 0xf] | pc2bytes10[MoveByte(right, 16) & 0xf] | pc2bytes11[MoveByte(right, 12) & 0xf] | pc2bytes12[MoveByte(right, 8) & 0xf] | pc2bytes13[MoveByte(right, 4) & 0xf];
temp = (MoveByte(righttemp, 16) ^ lefttemp) & 0x0000ffff;
keys[n++] = lefttemp ^ temp;
keys[n++] = righttemp ^ (temp << 16);
}
}
return keys;
}
//实现无符号右移,相当于javascript中的>>>运算符
private static int MoveByte(int val, int pos)
{
string strBit = string.Empty;
//取得二进制字符串
strBit = Convert.ToString(val, 2);
//转成32位长度的二进制
if (val >= 0)
{
strBit = Convert.ToString(val, 2);
int len = strBit.Length;
len = 32 - len;
for (int i = 0; i < len; ++i)
{
strBit = "0" + strBit;
}
}
//如果pos小于0,则应移pos + 32位
pos = (pos < 0) ? pos + 32 : pos;
for (int i = 0; i < pos; ++i)
{
strBit = "0" + strBit.Substring(0, 31);
}
return Convert.ToInt32(strBit, 2);
}
//将普通的字符串转换成16进制的字符串
private static string StringToHex(string s)
{
StringBuilder sb = new StringBuilder();
char[] hexs = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
int len = s.Length;
char[] cs = s.ToCharArray();
for (int i = 0; i < len; ++i)
{
sb.Append(hexs[cs[i] >> 4]);
sb.Append(hexs[cs[i] & 0xf]);
}
return sb.ToString();
}
//将16进制的字符串转换成普通的字符串
private static string HexToString(string s)
{
StringBuilder sb = new StringBuilder();
int len = s.Length;
char c;
for (int i = 0; i < len; i += 2)
{
c = Convert.ToChar(Convert.ToInt16("0x" + s.Substring(i, 2), 16));
sb.Append(c);
}
return sb.ToString();
}
//C# DES加密函数
public static string DesEncrypt(string key, string message)
{
return StringToHex(DES(key, message, true, 0, ""));
}
//C# DES解密函数
public static string DesDecrypt(string key, string message)
{
return DES(key, HexToString(message), false, 0, "");
}
用法如下:
1.在前台页面使用(javascript)jsencrypt(key,message)函数加密数据,并传到服务器,对应的,在服务器端使用(C#)DesDecrypt(key,message)解密得到原始数据.
2.同理:在服务器端使用(C#) DesEncrypt(key,message)加密数据,在页面上使用(javascript)jsdecrypt(key,message)解密,得到数据.
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本项目涉及的是使用JavaScript进行3DES加密，并在C#.NET后台进行解密的过程。以下是关于3DES、JavaScript和C#.NET的相关知识点的详细说明。 1. **3DES (Triple Data Encryption Algorithm)**: - 3DES是由传统DES...
### JavaScript 和 C# 双向兼容的 DES 加解密实现 #### 一、背景与需求分析 在实际项目开发过程中，前后端之间的数据传输安全变得越来越重要。本案例中的项目需求是利用JavaScript对客户端的数据进行DES加密处理，...
本资源提供的是一套完整的JavaScript实现，能够与ASP.NET和JAVA平台的3DES加密解密及Base64编码解码功能保持兼容。 首先，3DES的工作原理是在DES的基础上增加了一次加密过程，即使用同一个密钥进行三次加密，这大大...
实现JS加密C#解密的流程大致如下： 1. 前端：使用JavaScript加密库（如CryptoJS、Forge等）对敏感数据进行加密，生成密文。 2. 传输：将加密后的密文通过HTTPS等安全协议发送至服务器，确保在传输过程中数据不被...
本文将深入探讨C#中常用的加密解密函数，包括JSON对象的操作、DES、RSA和SHA算法。 首先，我们来了解一下JSON（JavaScript Object Notation）对象操作。JSON是一种轻量级的数据交换格式，易于人阅读和编写，同时也...
Delphi算法已经忘记出处，不过跟下面几个算法是配套的 VB.net算法来自 http://download.csdn.net/detail/mimi9924/3562307 PHP的算法来自这个网站： http://www.tero.co.uk/des/code.php 修改的时候偷了个懒，2...
3. **JavaScript和C#的AES实现**： 对于JavaScript和C#，也有类似的库和API可以进行AES加密，例如JavaScript中的`crypto-js`库和C#中的`System.Security.Cryptography`命名空间。在这些环境中，同样需要确保选择...
在uni-app中，可以使用JavaScript的crypto-js库来实现AES加密解密。首先，你需要通过HBuilderX引入该库，然后在uni-app代码中使用： ```javascript const CryptoJS = require('crypto-js'); const key = 'your_...
DES算法的核心是其56位的密钥，它通过16轮的迭代过程完成加密和解密。然而，由于DES的密钥长度相对较短，现在已被认为不够安全，通常会用其加强版3DES（Triple DES）或者更现代的AES（Advanced Encryption Standard...
这个项目包括了三个文件：`javades.txt`可能包含了Java语言实现的DES加密解密代码，`mydes.cs`应该是C#版本的实现，而`JavaScriptdes.js`则包含JavaScript的实现。 DES是一种对称加密算法，它的基本流程包括64位的...
JavaScript实现的DES CBC加密算法可以与后端的Java或.NET环境下的DES加密算法兼容，这是因为它们遵循了相同的加密标准和模式。在JavaScript中，可以使用开源库如crypto-js来实现DES CBC加密。这个库提供了加密和解密...
CryptoJS是一个流行的JavaScript加密库，它实现了多种加密算法，如MD5、SHA系列、AES、DES等。这个库方便地将加密和解密集成到浏览器环境或Node.js项目中，无需依赖后端服务。通过`require("crypto-js")`可以引入库...
在给定的标题和描述中，提到了两种主要的加密算法：RSA和AES，并且强调了这些C#实现的加密方法已经与其他编程语言（如Java和JavaScript）实现了互通。下面将详细阐述这两种加密算法以及它们在实际应用中的使用。 ...
总之，在Vue项目中实现AES加密解密可以有效保护用户数据，ECB模式简单但可能存在模式可预测性，而CBC模式通过引入初始向量提高了安全性。正确理解和运用这些加密技术，有助于构建更加安全的Web应用。在开发过程中，...
在C#中，System.Security.Cryptography提供了加密和解密的功能，支持各种算法如AES、DES、RSA等。开发者可以使用这些API实现数据的加密存储，保护敏感信息不被未授权访问。 FTP操作类是指使用C#进行FTP文件传输的...
C#程序需要调用智能卡的Crypto API，执行密钥操作和加解密算法。 5. **事件驱动编程**： 在开发过程中，通常会采用事件驱动的方式，监听读卡器的事件，例如卡片插入、移出、读取成功或失败等。通过注册和处理这些...