mirror of https://github.com/oxen-io/lokinet
make rpc do basic auth and shit like that
parent
5d3833ef1a
commit
990049f423
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#ifndef MD5_HPP
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#define MD5_HPP
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#include <array>
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#include <algorithm>
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#include <string>
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struct MD5
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{
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MD5();
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void
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Update(const unsigned char* ptr, uint32_t len);
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void
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Final(uint8_t* digest);
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uint32_t i[2]; /* number of _bits_ handled mod 2^64 */
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uint32_t buf[4]; /* scratch buffer */
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unsigned char in[64]; /* input buffer */
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/// do md5(str) and return hex encoded digest
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static std::string
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SumHex(const std::string& str)
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{
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std::array< uint8_t, 16 > digest;
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auto dist = str.size();
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MD5 m;
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m.Update((const unsigned char*)str.c_str(), dist);
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m.Final(digest.data());
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std::string hex;
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std::for_each(digest.begin(), digest.end(),
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[&hex](const unsigned char& ch) {
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char buf[4] = {0};
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std::snprintf(buf, sizeof(buf), "%.2x", ch);
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hex += std::string(buf);
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});
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return hex;
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}
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};
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#endif
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#include <abyss/md5.hpp>
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using UINT4 = uint32_t;
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/* forward declaration */
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void
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Transform(uint32_t *buf, uint32_t *in);
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static unsigned char PADDING[64] = {
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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/* F, G and H are basic MD5 functions: selection, majority, parity */
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#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
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#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
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#define H(x, y, z) ((x) ^ (y) ^ (z))
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#define I(x, y, z) ((y) ^ ((x) | (~z)))
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/* ROTATE_LEFT rotates x left n bits */
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#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
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/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4 */
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/* Rotation is separate from addition to prevent recomputation */
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#define FF(a, b, c, d, x, s, ac) \
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{ \
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(a) += F((b), (c), (d)) + (x) + (UINT4)(ac); \
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(a) = ROTATE_LEFT((a), (s)); \
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(a) += (b); \
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}
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#define GG(a, b, c, d, x, s, ac) \
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{ \
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(a) += G((b), (c), (d)) + (x) + (UINT4)(ac); \
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(a) = ROTATE_LEFT((a), (s)); \
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(a) += (b); \
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}
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#define HH(a, b, c, d, x, s, ac) \
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{ \
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(a) += H((b), (c), (d)) + (x) + (UINT4)(ac); \
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(a) = ROTATE_LEFT((a), (s)); \
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(a) += (b); \
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}
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#define II(a, b, c, d, x, s, ac) \
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{ \
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(a) += I((b), (c), (d)) + (x) + (UINT4)(ac); \
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(a) = ROTATE_LEFT((a), (s)); \
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(a) += (b); \
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}
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MD5::MD5()
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{
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i[0] = i[1] = (UINT4)0;
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/* Load magic initialization constants.
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*/
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buf[0] = (UINT4)0x67452301;
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buf[1] = (UINT4)0xefcdab89;
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buf[2] = (UINT4)0x98badcfe;
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buf[3] = (UINT4)0x10325476;
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}
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void
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MD5::Update(const unsigned char *inBuf, uint32_t inLen)
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{
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UINT4 in[16];
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int mdi;
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unsigned int i, ii;
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/* compute number of bytes mod 64 */
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mdi = (int)((this->i[0] >> 3) & 0x3F);
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/* update number of bits */
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if((this->i[0] + ((UINT4)inLen << 3)) < this->i[0])
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this->i[1]++;
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this->i[0] += ((UINT4)inLen << 3);
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this->i[1] += ((UINT4)inLen >> 29);
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while(inLen--)
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{
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/* add new character to buffer, increment mdi */
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this->in[mdi++] = *inBuf++;
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/* transform if necessary */
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if(mdi == 0x40)
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{
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for(i = 0, ii = 0; i < 16; i++, ii += 4)
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in[i] = (((UINT4)this->in[ii + 3]) << 24)
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| (((UINT4)this->in[ii + 2]) << 16)
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| (((UINT4)this->in[ii + 1]) << 8) | ((UINT4)this->in[ii]);
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Transform(this->buf, in);
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mdi = 0;
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}
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}
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}
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void
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MD5::Final(uint8_t *digest)
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{
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UINT4 in[16];
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int mdi;
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unsigned int i, ii;
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unsigned int padLen;
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/* save number of bits */
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in[14] = this->i[0];
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in[15] = this->i[1];
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/* compute number of bytes mod 64 */
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mdi = (int)((this->i[0] >> 3) & 0x3F);
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/* pad out to 56 mod 64 */
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padLen = (mdi < 56) ? (56 - mdi) : (120 - mdi);
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this->Update(PADDING, padLen);
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/* append length in bits and transform */
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for(i = 0, ii = 0; i < 14; i++, ii += 4)
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in[i] = (((UINT4)this->in[ii + 3]) << 24)
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| (((UINT4)this->in[ii + 2]) << 16) | (((UINT4)this->in[ii + 1]) << 8)
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| ((UINT4)this->in[ii]);
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Transform(this->buf, in);
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/* store buffer in digest */
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for(i = 0, ii = 0; i < 4; i++, ii += 4)
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{
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digest[ii] = (unsigned char)(this->buf[i] & 0xFF);
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digest[ii + 1] = (unsigned char)((this->buf[i] >> 8) & 0xFF);
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digest[ii + 2] = (unsigned char)((this->buf[i] >> 16) & 0xFF);
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digest[ii + 3] = (unsigned char)((this->buf[i] >> 24) & 0xFF);
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}
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}
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/* Basic MD5 step. Transform buf based on in.
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*/
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void
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Transform(UINT4 *buf, UINT4 *in)
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{
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UINT4 a = buf[0], b = buf[1], c = buf[2], d = buf[3];
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/* Round 1 */
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#define S11 7
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#define S12 12
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#define S13 17
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#define S14 22
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FF(a, b, c, d, in[0], S11, 3614090360); /* 1 */
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FF(d, a, b, c, in[1], S12, 3905402710); /* 2 */
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FF(c, d, a, b, in[2], S13, 606105819); /* 3 */
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FF(b, c, d, a, in[3], S14, 3250441966); /* 4 */
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FF(a, b, c, d, in[4], S11, 4118548399); /* 5 */
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FF(d, a, b, c, in[5], S12, 1200080426); /* 6 */
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FF(c, d, a, b, in[6], S13, 2821735955); /* 7 */
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FF(b, c, d, a, in[7], S14, 4249261313); /* 8 */
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FF(a, b, c, d, in[8], S11, 1770035416); /* 9 */
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FF(d, a, b, c, in[9], S12, 2336552879); /* 10 */
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FF(c, d, a, b, in[10], S13, 4294925233); /* 11 */
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FF(b, c, d, a, in[11], S14, 2304563134); /* 12 */
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FF(a, b, c, d, in[12], S11, 1804603682); /* 13 */
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FF(d, a, b, c, in[13], S12, 4254626195); /* 14 */
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FF(c, d, a, b, in[14], S13, 2792965006); /* 15 */
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FF(b, c, d, a, in[15], S14, 1236535329); /* 16 */
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/* Round 2 */
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#define S21 5
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#define S22 9
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#define S23 14
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#define S24 20
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GG(a, b, c, d, in[1], S21, 4129170786); /* 17 */
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GG(d, a, b, c, in[6], S22, 3225465664); /* 18 */
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GG(c, d, a, b, in[11], S23, 643717713); /* 19 */
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GG(b, c, d, a, in[0], S24, 3921069994); /* 20 */
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GG(a, b, c, d, in[5], S21, 3593408605); /* 21 */
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GG(d, a, b, c, in[10], S22, 38016083); /* 22 */
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GG(c, d, a, b, in[15], S23, 3634488961); /* 23 */
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GG(b, c, d, a, in[4], S24, 3889429448); /* 24 */
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GG(a, b, c, d, in[9], S21, 568446438); /* 25 */
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GG(d, a, b, c, in[14], S22, 3275163606); /* 26 */
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GG(c, d, a, b, in[3], S23, 4107603335); /* 27 */
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GG(b, c, d, a, in[8], S24, 1163531501); /* 28 */
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GG(a, b, c, d, in[13], S21, 2850285829); /* 29 */
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GG(d, a, b, c, in[2], S22, 4243563512); /* 30 */
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GG(c, d, a, b, in[7], S23, 1735328473); /* 31 */
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GG(b, c, d, a, in[12], S24, 2368359562); /* 32 */
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/* Round 3 */
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#define S31 4
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#define S32 11
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#define S33 16
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#define S34 23
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HH(a, b, c, d, in[5], S31, 4294588738); /* 33 */
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HH(d, a, b, c, in[8], S32, 2272392833); /* 34 */
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HH(c, d, a, b, in[11], S33, 1839030562); /* 35 */
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HH(b, c, d, a, in[14], S34, 4259657740); /* 36 */
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HH(a, b, c, d, in[1], S31, 2763975236); /* 37 */
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HH(d, a, b, c, in[4], S32, 1272893353); /* 38 */
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HH(c, d, a, b, in[7], S33, 4139469664); /* 39 */
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HH(b, c, d, a, in[10], S34, 3200236656); /* 40 */
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HH(a, b, c, d, in[13], S31, 681279174); /* 41 */
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HH(d, a, b, c, in[0], S32, 3936430074); /* 42 */
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HH(c, d, a, b, in[3], S33, 3572445317); /* 43 */
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HH(b, c, d, a, in[6], S34, 76029189); /* 44 */
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HH(a, b, c, d, in[9], S31, 3654602809); /* 45 */
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HH(d, a, b, c, in[12], S32, 3873151461); /* 46 */
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HH(c, d, a, b, in[15], S33, 530742520); /* 47 */
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HH(b, c, d, a, in[2], S34, 3299628645); /* 48 */
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/* Round 4 */
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#define S41 6
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#define S42 10
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#define S43 15
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#define S44 21
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II(a, b, c, d, in[0], S41, 4096336452); /* 49 */
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II(d, a, b, c, in[7], S42, 1126891415); /* 50 */
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II(c, d, a, b, in[14], S43, 2878612391); /* 51 */
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II(b, c, d, a, in[5], S44, 4237533241); /* 52 */
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II(a, b, c, d, in[12], S41, 1700485571); /* 53 */
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II(d, a, b, c, in[3], S42, 2399980690); /* 54 */
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II(c, d, a, b, in[10], S43, 4293915773); /* 55 */
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II(b, c, d, a, in[1], S44, 2240044497); /* 56 */
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II(a, b, c, d, in[8], S41, 1873313359); /* 57 */
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II(d, a, b, c, in[15], S42, 4264355552); /* 58 */
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II(c, d, a, b, in[6], S43, 2734768916); /* 59 */
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II(b, c, d, a, in[13], S44, 1309151649); /* 60 */
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II(a, b, c, d, in[4], S41, 4149444226); /* 61 */
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II(d, a, b, c, in[11], S42, 3174756917); /* 62 */
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II(c, d, a, b, in[2], S43, 718787259); /* 63 */
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II(b, c, d, a, in[9], S44, 3951481745); /* 64 */
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buf[0] += a;
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buf[1] += b;
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buf[2] += c;
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buf[3] += d;
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}
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