1 | /*
|
---|
2 | ###############################################################################
|
---|
3 | #
|
---|
4 | # Temboo Arduino library
|
---|
5 | #
|
---|
6 | # Copyright 2014, Temboo Inc.
|
---|
7 | #
|
---|
8 | # Licensed under the Apache License, Version 2.0 (the "License");
|
---|
9 | # you may not use this file except in compliance with the License.
|
---|
10 | # You may obtain a copy of the License at
|
---|
11 | #
|
---|
12 | # http://www.apache.org/licenses/LICENSE-2.0
|
---|
13 | #
|
---|
14 | # Unless required by applicable law or agreed to in writing,
|
---|
15 | # software distributed under the License is distributed on an
|
---|
16 | # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
|
---|
17 | # either express or implied. See the License for the specific
|
---|
18 | # language governing permissions and limitations under the License.
|
---|
19 | #
|
---|
20 | ###############################################################################
|
---|
21 | */
|
---|
22 |
|
---|
23 | #ifndef TMBMD5_H_
|
---|
24 | #define TMBMD5_H_
|
---|
25 |
|
---|
26 | #include <stdint.h>
|
---|
27 | #include "TembooGlobal.h"
|
---|
28 |
|
---|
29 | #define MD5_HASH_SIZE_BITS (128)
|
---|
30 | #define MD5_HASH_SIZE_BYTES (MD5_HASH_SIZE_BITS/8)
|
---|
31 |
|
---|
32 | #define MD5_BLOCK_SIZE_BITS (512)
|
---|
33 | #define MD5_BLOCK_SIZE_BYTES (MD5_BLOCK_SIZE_BITS/8)
|
---|
34 |
|
---|
35 |
|
---|
36 | #define ROL(x, y) ( (((uint32_t)(x)<<(uint32_t)((y)&31)) | (((uint32_t)(x)&0xFFFFFFFFUL)>>(uint32_t)(32-((y)&31)))) & 0xFFFFFFFFUL)
|
---|
37 | class MD5 {
|
---|
38 |
|
---|
39 | public:
|
---|
40 | MD5();
|
---|
41 | void init();
|
---|
42 | int process(const uint8_t* in, uint32_t inlen);
|
---|
43 | int finish(uint8_t* hash);
|
---|
44 | enum {
|
---|
45 | MD5_OK = 0,
|
---|
46 | MD5_ERROR,
|
---|
47 | MD5_INVALID_ARG,
|
---|
48 | MD5_FAIL_TESTVECTOR
|
---|
49 | };
|
---|
50 |
|
---|
51 | private:
|
---|
52 | uint64_t m_msgLengthBits;
|
---|
53 | uint32_t m_state[4];
|
---|
54 | uint32_t m_bufLength;
|
---|
55 | uint8_t m_buf[64];
|
---|
56 |
|
---|
57 | int compress(const uint8_t* buf);
|
---|
58 |
|
---|
59 | inline uint32_t F_(uint32_t x, uint32_t y, uint32_t z) { return (z ^ (x & (y ^ z))); }
|
---|
60 | inline uint32_t G_(uint32_t x, uint32_t y, uint32_t z) { return (y ^ (z & (y ^ x))); }
|
---|
61 | inline uint32_t H_(uint32_t x, uint32_t y, uint32_t z) { return (x^y^z); }
|
---|
62 | inline uint32_t I_(uint32_t x, uint32_t y, uint32_t z) { return (y^(x|(~z))); }
|
---|
63 |
|
---|
64 |
|
---|
65 | inline void FF(uint32_t* a, uint32_t b, uint32_t c, uint32_t d, uint32_t M, uint32_t s, uint32_t t) { *a = (*a + F_(b,c,d) + M + t); *a = ROL(*a, s) + b; }
|
---|
66 | inline void GG(uint32_t* a, uint32_t b, uint32_t c, uint32_t d, uint32_t M, uint32_t s, uint32_t t) { *a = (*a + G_(b,c,d) + M + t); *a = ROL(*a, s) + b; }
|
---|
67 | inline void HH(uint32_t* a, uint32_t b, uint32_t c, uint32_t d, uint32_t M, uint32_t s, uint32_t t) { *a = (*a + H_(b,c,d) + M + t); *a = ROL(*a, s) + b; }
|
---|
68 | inline void II(uint32_t* a, uint32_t b, uint32_t c, uint32_t d, uint32_t M, uint32_t s, uint32_t t) { *a = (*a + I_(b,c,d) + M + t); *a = ROL(*a, s) + b; }
|
---|
69 |
|
---|
70 | };
|
---|
71 |
|
---|
72 | #endif
|
---|