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223 lines
7.3 KiB
223 lines
7.3 KiB
export function md5(string) {
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function RotateLeft(lValue, iShiftBits) {
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return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits))
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}
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function AddUnsigned(lX, lY) {
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let lX4, lY4, lX8, lY8, lResult
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lX8 = lX & 0x80000000
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lY8 = lY & 0x80000000
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lX4 = lX & 0x40000000
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lY4 = lY & 0x40000000
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lResult = (lX & 0x3fffffff) + (lY & 0x3fffffff)
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if (lX4 & lY4) {
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return lResult ^ 0x80000000 ^ lX8 ^ lY8
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}
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if (lX4 | lY4) {
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if (lResult & 0x40000000) {
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return lResult ^ 0xc0000000 ^ lX8 ^ lY8
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} else {
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return lResult ^ 0x40000000 ^ lX8 ^ lY8
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}
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} else {
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return lResult ^ lX8 ^ lY8
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}
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}
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function F(x, y, z) {
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return (x & y) | (~x & z)
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}
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function G(x, y, z) {
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return (x & z) | (y & ~z)
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}
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function H(x, y, z) {
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return x ^ y ^ z
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}
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function I(x, y, z) {
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return y ^ (x | ~z)
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}
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function FF(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac))
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return AddUnsigned(RotateLeft(a, s), b)
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}
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function GG(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac))
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return AddUnsigned(RotateLeft(a, s), b)
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}
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function HH(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac))
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return AddUnsigned(RotateLeft(a, s), b)
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}
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function II(a, b, c, d, x, s, ac) {
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a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac))
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return AddUnsigned(RotateLeft(a, s), b)
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}
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function ConvertToWordArray(string) {
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let lWordCount
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let lMessageLength = string.length
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let lNumberOfWords_temp1 = lMessageLength + 8
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let lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64
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let lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16
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let lWordArray = Array(lNumberOfWords - 1)
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let lBytePosition = 0
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let lByteCount = 0
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while (lByteCount < lMessageLength) {
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lWordCount = (lByteCount - (lByteCount % 4)) / 4
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lBytePosition = (lByteCount % 4) * 8
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lWordArray[lWordCount] = lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition)
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lByteCount++
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}
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lWordCount = (lByteCount - (lByteCount % 4)) / 4
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lBytePosition = (lByteCount % 4) * 8
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lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition)
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lWordArray[lNumberOfWords - 2] = lMessageLength << 3
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lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29
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return lWordArray
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}
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function WordToHex(lValue) {
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let WordToHexValue = '',
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WordToHexValue_temp = '',
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lByte,
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lCount
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for (lCount = 0; lCount <= 3; lCount++) {
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lByte = (lValue >>> (lCount * 8)) & 255
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WordToHexValue_temp = '0' + lByte.toString(16)
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WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2)
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}
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return WordToHexValue
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}
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function Utf8Encode(string) {
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string = string.replace(/\r\n/g, '\n')
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let utftext = ''
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for (let n = 0; n < string.length; n++) {
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let c = string.charCodeAt(n)
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if (c < 128) {
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utftext += String.fromCharCode(c)
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} else if (c > 127 && c < 2048) {
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utftext += String.fromCharCode((c >> 6) | 192)
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utftext += String.fromCharCode((c & 63) | 128)
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} else {
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utftext += String.fromCharCode((c >> 12) | 224)
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utftext += String.fromCharCode(((c >> 6) & 63) | 128)
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utftext += String.fromCharCode((c & 63) | 128)
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}
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}
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return utftext
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}
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let k, AA, BB, CC, DD, a, b, c, d
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let S11 = 7,
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S12 = 12,
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S13 = 17,
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S14 = 22
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let S21 = 5,
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S22 = 9,
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S23 = 14,
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S24 = 20
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let S31 = 4,
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S32 = 11,
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S33 = 16,
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S34 = 23
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let S41 = 6,
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S42 = 10,
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S43 = 15,
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S44 = 21
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string = Utf8Encode(string)
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let x = ConvertToWordArray(string)
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a = 0x67452301
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b = 0xefcdab89
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c = 0x98badcfe
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d = 0x10325476
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for (k = 0; k < x.length; k += 16) {
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AA = a
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BB = b
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CC = c
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DD = d
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a = FF(a, b, c, d, x[k + 0], S11, 0xd76aa478)
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d = FF(d, a, b, c, x[k + 1], S12, 0xe8c7b756)
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c = FF(c, d, a, b, x[k + 2], S13, 0x242070db)
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b = FF(b, c, d, a, x[k + 3], S14, 0xc1bdceee)
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a = FF(a, b, c, d, x[k + 4], S11, 0xf57c0faf)
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d = FF(d, a, b, c, x[k + 5], S12, 0x4787c62a)
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c = FF(c, d, a, b, x[k + 6], S13, 0xa8304613)
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b = FF(b, c, d, a, x[k + 7], S14, 0xfd469501)
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a = FF(a, b, c, d, x[k + 8], S11, 0x698098d8)
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d = FF(d, a, b, c, x[k + 9], S12, 0x8b44f7af)
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c = FF(c, d, a, b, x[k + 10], S13, 0xffff5bb1)
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b = FF(b, c, d, a, x[k + 11], S14, 0x895cd7be)
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a = FF(a, b, c, d, x[k + 12], S11, 0x6b901122)
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d = FF(d, a, b, c, x[k + 13], S12, 0xfd987193)
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c = FF(c, d, a, b, x[k + 14], S13, 0xa679438e)
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b = FF(b, c, d, a, x[k + 15], S14, 0x49b40821)
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a = GG(a, b, c, d, x[k + 1], S21, 0xf61e2562)
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d = GG(d, a, b, c, x[k + 6], S22, 0xc040b340)
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c = GG(c, d, a, b, x[k + 11], S23, 0x265e5a51)
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b = GG(b, c, d, a, x[k + 0], S24, 0xe9b6c7aa)
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a = GG(a, b, c, d, x[k + 5], S21, 0xd62f105d)
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d = GG(d, a, b, c, x[k + 10], S22, 0x2441453)
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c = GG(c, d, a, b, x[k + 15], S23, 0xd8a1e681)
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b = GG(b, c, d, a, x[k + 4], S24, 0xe7d3fbc8)
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a = GG(a, b, c, d, x[k + 9], S21, 0x21e1cde6)
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d = GG(d, a, b, c, x[k + 14], S22, 0xc33707d6)
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c = GG(c, d, a, b, x[k + 3], S23, 0xf4d50d87)
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b = GG(b, c, d, a, x[k + 8], S24, 0x455a14ed)
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a = GG(a, b, c, d, x[k + 13], S21, 0xa9e3e905)
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d = GG(d, a, b, c, x[k + 2], S22, 0xfcefa3f8)
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c = GG(c, d, a, b, x[k + 7], S23, 0x676f02d9)
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b = GG(b, c, d, a, x[k + 12], S24, 0x8d2a4c8a)
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a = HH(a, b, c, d, x[k + 5], S31, 0xfffa3942)
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d = HH(d, a, b, c, x[k + 8], S32, 0x8771f681)
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c = HH(c, d, a, b, x[k + 11], S33, 0x6d9d6122)
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b = HH(b, c, d, a, x[k + 14], S34, 0xfde5380c)
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a = HH(a, b, c, d, x[k + 1], S31, 0xa4beea44)
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d = HH(d, a, b, c, x[k + 4], S32, 0x4bdecfa9)
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c = HH(c, d, a, b, x[k + 7], S33, 0xf6bb4b60)
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b = HH(b, c, d, a, x[k + 10], S34, 0xbebfbc70)
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a = HH(a, b, c, d, x[k + 13], S31, 0x289b7ec6)
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d = HH(d, a, b, c, x[k + 0], S32, 0xeaa127fa)
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c = HH(c, d, a, b, x[k + 3], S33, 0xd4ef3085)
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b = HH(b, c, d, a, x[k + 6], S34, 0x4881d05)
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a = HH(a, b, c, d, x[k + 9], S31, 0xd9d4d039)
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d = HH(d, a, b, c, x[k + 12], S32, 0xe6db99e5)
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c = HH(c, d, a, b, x[k + 15], S33, 0x1fa27cf8)
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b = HH(b, c, d, a, x[k + 2], S34, 0xc4ac5665)
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a = II(a, b, c, d, x[k + 0], S41, 0xf4292244)
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d = II(d, a, b, c, x[k + 7], S42, 0x432aff97)
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c = II(c, d, a, b, x[k + 14], S43, 0xab9423a7)
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b = II(b, c, d, a, x[k + 5], S44, 0xfc93a039)
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a = II(a, b, c, d, x[k + 12], S41, 0x655b59c3)
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d = II(d, a, b, c, x[k + 3], S42, 0x8f0ccc92)
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c = II(c, d, a, b, x[k + 10], S43, 0xffeff47d)
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b = II(b, c, d, a, x[k + 1], S44, 0x85845dd1)
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a = II(a, b, c, d, x[k + 8], S41, 0x6fa87e4f)
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d = II(d, a, b, c, x[k + 15], S42, 0xfe2ce6e0)
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c = II(c, d, a, b, x[k + 6], S43, 0xa3014314)
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b = II(b, c, d, a, x[k + 13], S44, 0x4e0811a1)
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a = II(a, b, c, d, x[k + 4], S41, 0xf7537e82)
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d = II(d, a, b, c, x[k + 11], S42, 0xbd3af235)
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c = II(c, d, a, b, x[k + 2], S43, 0x2ad7d2bb)
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b = II(b, c, d, a, x[k + 9], S44, 0xeb86d391)
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a = AddUnsigned(a, AA)
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b = AddUnsigned(b, BB)
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c = AddUnsigned(c, CC)
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d = AddUnsigned(d, DD)
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}
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let temp = WordToHex(a) + WordToHex(b) + WordToHex(c) + WordToHex(d)
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return temp.toLowerCase()
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}
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