fcc-core
Version:
Fusion communication center.
351 lines (257 loc) • 17.1 kB
JavaScript
// des加解密函数
// key：加密用的密钥
// message：需要加密的字符串
// encrypt：加密还是解密，1为加密，0，解密
function des (key, message, encrypt, mode, iv) {
// declaring this locally speeds things up a bit
var spfunction1 = [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 = [-0x7fef7fe0, -0x7fff8000, 0x8000, 0x108020, 0x100000, 0x20, -0x7fefffe0, -0x7fff7fe0, -0x7fffffe0, -0x7fef7fe0, -0x7fef8000, -0x80000000, -0x7fff8000, 0x100000, 0x20, -0x7fefffe0, 0x108000, 0x100020, -0x7fff7fe0, 0, -0x80000000, 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, -0x80000000, 0x8020, -0x7fef8000, 0x100000, -0x7fffffe0, 0x100020, -0x7fff7fe0, -0x7fffffe0, 0x100020, 0x108000, 0, -0x7fff8000, 0x8020, -0x80000000, -0x7fefffe0, -0x7fef7fe0, 0x108000]
var spfunction3 = [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 = [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 = [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 = [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 = [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 = [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]
// create the 16 or 48 subkeys we will need
var keys = des_createKeys(key)
var m = 0,
i, j, temp, right1, right2, left, right, looping
var cbcleft, cbcleft2, cbcright, cbcright2
var endloop, loopinc
var len = message.length
var chunk = 0
// set up the loops for single and triple des
var iterations = keys.length === 32 ? 3 : 9 // single or triple des
if (iterations === 3) {
looping = encrypt ? [0, 32, 2] : [30, -2, -2]
} else {
looping = encrypt ? [0, 32, 2, 62, 30, -2, 64, 96, 2] : [94, 62, -2, 32, 64, 2, 30, -2, -2]
}
message += '\0\0\0\0\0\0\0\0'
// pad the message out with null bytes
// store the result here
var result = '',
tempresult = ''
if (mode === 1) {
// CBC mode
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
}
// loop through each 64 bit chunk of the message
while (m < len) {
if (encrypt) {
/* 加密时按双字节操作 */
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++)
}
// for Cipher Block Chaining mode,xor the message with the previous result
if (mode === 1) {
if (encrypt) {
left ^= cbcleft
right ^= cbcright
} else {
cbcleft2 = cbcleft
cbcright2 = cbcright
cbcleft = left
cbcright = right
}
}
// first each 64 but chunk of the message must be permuted according to IP
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))
// do this either 1 or 3 times for each chunk of the message
for (j = 0; j < iterations; j += 3) {
endloop = looping[j + 1]
loopinc = looping[j + 2]
// now go through and perform the encryption or decryption
for (i = looping[j]; i !== endloop; i += loopinc) {
// for efficiency
right1 = right ^ keys[i]
right2 = ((right >>> 4) | (right << 28)) ^ keys[i + 1]
// the result is attained by passing these bytes through the S selection functions
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
// unreverse left and right
}
// for either 1 or 3 iterations
// move then each one bit to the right
left = ((left >>> 1) | (left << 31))
right = ((right >>> 1) | (right << 31))
// now perform IP-1,which is IP in the opposite direction
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)
// for Cipher Block Chaining mode,xor the message with the previous result
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))
}
/* 解密时输出双字节 */
encrypt ? chunk += 16 : chunk += 8
if (chunk === 512) {
result += tempresult
tempresult = ''
chunk = 0
}
}
// for every 8 characters,or 64 bits in the message
// return the result as an array
return result + tempresult
}
// end of des
// des_createKeys
// this takes as input a 64 bit key(even though only 56 bits are used)
// as an array of 2 integers,and returns 16 48 bit keys
function des_createKeys (key) {
// declaring this locally speeds things up a bit
var pc2bytes0, pc2bytes1, pc2bytes2, pc2bytes3, pc2bytes4, pc2bytes5, pc2bytes6, pc2bytes7, pc2bytes8, pc2bytes9, pc2bytes10, pc2bytes11, pc2bytes12, pc2bytes13
pc2bytes0 = [0, 0x4, 0x20000000, 0x20000004, 0x10000, 0x10004, 0x20010000, 0x20010004, 0x200, 0x204, 0x20000200, 0x20000204, 0x10200, 0x10204, 0x20010200, 0x20010204]
pc2bytes1 = [0, 0x1, 0x100000, 0x100001, 0x4000000, 0x4000001, 0x4100000, 0x4100001, 0x100, 0x101, 0x100100, 0x100101, 0x4000100, 0x4000101, 0x4100100, 0x4100101]
pc2bytes2 = [0, 0x8, 0x800, 0x808, 0x1000000, 0x1000008, 0x1000800, 0x1000808, 0, 0x8, 0x800, 0x808, 0x1000000, 0x1000008, 0x1000800, 0x1000808]
pc2bytes3 = [0, 0x200000, 0x8000000, 0x8200000, 0x2000, 0x202000, 0x8002000, 0x8202000, 0x20000, 0x220000, 0x8020000, 0x8220000, 0x22000, 0x222000, 0x8022000, 0x8222000]
pc2bytes4 = [0, 0x40000, 0x10, 0x40010, 0, 0x40000, 0x10, 0x40010, 0x1000, 0x41000, 0x1010, 0x41010, 0x1000, 0x41000, 0x1010, 0x41010]
pc2bytes5 = [0, 0x400, 0x20, 0x420, 0, 0x400, 0x20, 0x420, 0x2000000, 0x2000400, 0x2000020, 0x2000420, 0x2000000, 0x2000400, 0x2000020, 0x2000420]
pc2bytes6 = [0, 0x10000000, 0x80000, 0x10080000, 0x2, 0x10000002, 0x80002, 0x10080002, 0, 0x10000000, 0x80000, 0x10080000, 0x2, 0x10000002, 0x80002, 0x10080002]
pc2bytes7 = [0, 0x10000, 0x800, 0x10800, 0x20000000, 0x20010000, 0x20000800, 0x20010800, 0x20000, 0x30000, 0x20800, 0x30800, 0x20020000, 0x20030000, 0x20020800, 0x20030800]
pc2bytes8 = [0, 0x40000, 0, 0x40000, 0x2, 0x40002, 0x2, 0x40002, 0x2000000, 0x2040000, 0x2000000, 0x2040000, 0x2000002, 0x2040002, 0x2000002, 0x2040002]
pc2bytes9 = [0, 0x10000000, 0x8, 0x10000008, 0, 0x10000000, 0x8, 0x10000008, 0x400, 0x10000400, 0x408, 0x10000408, 0x400, 0x10000400, 0x408, 0x10000408]
pc2bytes10 = [0, 0x20, 0, 0x20, 0x100000, 0x100020, 0x100000, 0x100020, 0x2000, 0x2020, 0x2000, 0x2020, 0x102000, 0x102020, 0x102000, 0x102020]
pc2bytes11 = [0, 0x1000000, 0x200, 0x1000200, 0x200000, 0x1200000, 0x200200, 0x1200200, 0x4000000, 0x5000000, 0x4000200, 0x5000200, 0x4200000, 0x5200000, 0x4200200, 0x5200200]
pc2bytes12 = [0, 0x1000, 0x8000000, 0x8001000, 0x80000, 0x81000, 0x8080000, 0x8081000, 0x10, 0x1010, 0x8000010, 0x8001010, 0x80010, 0x81010, 0x8080010, 0x8081010]
pc2bytes13 = [0, 0x4, 0x100, 0x104, 0, 0x4, 0x100, 0x104, 0x1, 0x5, 0x101, 0x105, 0x1, 0x5, 0x101, 0x105]
// how many iterations(1 for des,3 for triple des)
var iterations = key.length >= 24 ? 3 : 1
// stores the return keys
var keys = new Array(32 * iterations)
// now define the left shifts which need to be done
var shifts = [0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0]
// other variables
var lefttemp, righttemp, m = 0,
n = 0,
temp, left, right
for (var j = 0; j < iterations; j++) {
// either 1 or 3 iterations
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)
// the right side needs to be shifted and to get the last four bits of the left side
temp = (left << 8) | ((right >>> 20) & 0x000000f0)
// left needs to be put upside down
left = (right << 24) | ((right << 8) & 0xff0000) | ((right >>> 8) & 0xff00) | ((right >>> 24) & 0xf0)
right = temp
// now go through and perform these shifts on the left and right keys
for (var i = 0; i < shifts.length; i++) {
// shift the keys either one or two bits to the left
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
// now apply PC-2,in such a way that E is easier when encrypting or decrypting
// this conversion will look like PC-2 except only the last 6 bits of each byte are used
// rather than 48 consecutive bits and the order of lines will be according to
// how the S selection functions will be applied:S2,S4,S6,S8,S1,S3,S5,S7
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)
}
}
// for each iterations
// return the keys we"ve created
return keys
}
// end of des_createKeys
/// /////////////////////////// 测试 //////////////////////////////
function stringToHex (s) {
var r = ''
var hexes = ['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
}
export default
// 使用key为frame加密
function encrypt (enStr, key) {
var str = des(key || '888888', enStr, 1, 0)
str = stringToHex(str)
return str
}