#include "md5.hpp"

#include "utils.hpp"

#include <string.h>

#define F(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))

#define G(x, y, z) ((y) ^ ((z) & ((x) ^ (y))))

#define H(x, y, z) ((x) ^ (y) ^ (z))

#define I(x, y, z) ((y) ^ ((x) | ~(z)))

#define STEP(f, a, b, c, d, x, t, s) \

(a) += f((b), (c), (d)) + (x) + (t); \

(a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \

(a) += (b);

#if defined(__i386__) || defined(__x86_64__) || defined(__vax__)

#define SET(n) \

(*(MD5_u32plus *)&ptr[(n) * 4])

#define GET(n) \

SET(n)

#else

#define SET(n) \

(block_[(n)] = \

(MD5_u32plus)ptr[(n) * 4] | \

((MD5_u32plus)ptr[(n) * 4 + 1] << 8) | \

((MD5_u32plus)ptr[(n) * 4 + 2] << 16) | \

((MD5_u32plus)ptr[(n) * 4 + 3] << 24))

#define GET(n) \

(block_[(n)])

#endif

namespace cass {

Md5::Md5()

: lo_(0), hi_(0)

, a_(0x67452301), b_(0xefcdab89)

, c_(0x98badcfe), d_(0x10325476) {}

void Md5::update(const uint8_t* data, size_t size) {

}

void Md5::final(uint8_t* result) {

}

const uint8_t* Md5::body(const uint8_t* data, size_t size)

{

const uint8_t* ptr = data;

MD5_u32plus a, b, c, d;

MD5_u32plus saved_a, saved_b, saved_c, saved_d;

a = a_;

b = b_;

c = c_;

d = d_;

do {

saved_a = a;

saved_b = b;

saved_c = c;

saved_d = d;

// Round 1

STEP(F, a, b, c, d, SET(0), 0xd76aa478, 7)

STEP(F, d, a, b, c, SET(1), 0xe8c7b756, 12)

STEP(F, c, d, a, b, SET(2), 0x242070db, 17)

STEP(F, b, c, d, a, SET(3), 0xc1bdceee, 22)

STEP(F, a, b, c, d, SET(4), 0xf57c0faf, 7)

STEP(F, d, a, b, c, SET(5), 0x4787c62a, 12)

STEP(F, c, d, a, b, SET(6), 0xa8304613, 17)

STEP(F, b, c, d, a, SET(7), 0xfd469501, 22)

STEP(F, a, b, c, d, SET(8), 0x698098d8, 7)

STEP(F, d, a, b, c, SET(9), 0x8b44f7af, 12)

STEP(F, c, d, a, b, SET(10), 0xffff5bb1, 17)

STEP(F, b, c, d, a, SET(11), 0x895cd7be, 22)

STEP(F, a, b, c, d, SET(12), 0x6b901122, 7)

STEP(F, d, a, b, c, SET(13), 0xfd987193, 12)

STEP(F, c, d, a, b, SET(14), 0xa679438e, 17)

STEP(F, b, c, d, a, SET(15), 0x49b40821, 22)

// Round 2

STEP(G, a, b, c, d, GET(1), 0xf61e2562, 5)

STEP(G, d, a, b, c, GET(6), 0xc040b340, 9)

STEP(G, c, d, a, b, GET(11), 0x265e5a51, 14)

STEP(G, b, c, d, a, GET(0), 0xe9b6c7aa, 20)

STEP(G, a, b, c, d, GET(5), 0xd62f105d, 5)

STEP(G, d, a, b, c, GET(10), 0x02441453, 9)

STEP(G, c, d, a, b, GET(15), 0xd8a1e681, 14)

STEP(G, b, c, d, a, GET(4), 0xe7d3fbc8, 20)

STEP(G, a, b, c, d, GET(9), 0x21e1cde6, 5)

STEP(G, d, a, b, c, GET(14), 0xc33707d6, 9)

STEP(G, c, d, a, b, GET(3), 0xf4d50d87, 14)

STEP(G, b, c, d, a, GET(8), 0x455a14ed, 20)

STEP(G, a, b, c, d, GET(13), 0xa9e3e905, 5)

STEP(G, d, a, b, c, GET(2), 0xfcefa3f8, 9)

STEP(G, c, d, a, b, GET(7), 0x676f02d9, 14)

STEP(G, b, c, d, a, GET(12), 0x8d2a4c8a, 20)

// Round 3

STEP(H, a, b, c, d, GET(5), 0xfffa3942, 4)

STEP(H, d, a, b, c, GET(8), 0x8771f681, 11)

STEP(H, c, d, a, b, GET(11), 0x6d9d6122, 16)

STEP(H, b, c, d, a, GET(14), 0xfde5380c, 23)

STEP(H, a, b, c, d, GET(1), 0xa4beea44, 4)

STEP(H, d, a, b, c, GET(4), 0x4bdecfa9, 11)

STEP(H, c, d, a, b, GET(7), 0xf6bb4b60, 16)

STEP(H, b, c, d, a, GET(10), 0xbebfbc70, 23)

STEP(H, a, b, c, d, GET(13), 0x289b7ec6, 4)

STEP(H, d, a, b, c, GET(0), 0xeaa127fa, 11)

STEP(H, c, d, a, b, GET(3), 0xd4ef3085, 16)

STEP(H, b, c, d, a, GET(6), 0x04881d05, 23)

STEP(H, a, b, c, d, GET(9), 0xd9d4d039, 4)

STEP(H, d, a, b, c, GET(12), 0xe6db99e5, 11)

STEP(H, c, d, a, b, GET(15), 0x1fa27cf8, 16)

STEP(H, b, c, d, a, GET(2), 0xc4ac5665, 23)

// Round 4

STEP(I, a, b, c, d, GET(0), 0xf4292244, 6)

STEP(I, d, a, b, c, GET(7), 0x432aff97, 10)

STEP(I, c, d, a, b, GET(14), 0xab9423a7, 15)

STEP(I, b, c, d, a, GET(5), 0xfc93a039, 21)

STEP(I, a, b, c, d, GET(12), 0x655b59c3, 6)

STEP(I, d, a, b, c, GET(3), 0x8f0ccc92, 10)

STEP(I, c, d, a, b, GET(10), 0xffeff47d, 15)

STEP(I, b, c, d, a, GET(1), 0x85845dd1, 21)

STEP(I, a, b, c, d, GET(8), 0x6fa87e4f, 6)

STEP(I, d, a, b, c, GET(15), 0xfe2ce6e0, 10)

STEP(I, c, d, a, b, GET(6), 0xa3014314, 15)

STEP(I, b, c, d, a, GET(13), 0x4e0811a1, 21)

STEP(I, a, b, c, d, GET(4), 0xf7537e82, 6)

STEP(I, d, a, b, c, GET(11), 0xbd3af235, 10)

STEP(I, c, d, a, b, GET(2), 0x2ad7d2bb, 15)

STEP(I, b, c, d, a, GET(9), 0xeb86d391, 21)

a += saved_a;

b += saved_b;

c += saved_c;

d += saved_d;

ptr += 64;

} while (size -= 64);

a_ = a;

b_ = b;

c_ = c;

d_ = d;

return ptr;

}

} // namespace cass