1 | /*
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2 | ***********************************************************************
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3 | ** md5.h -- header file for implementation of MD5 **
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4 | ** RSA Data Security, Inc. MD5 Message-Digest Algorithm **
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5 | ** Created: 2/17/90 RLR **
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6 | ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version **
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7 | ** Revised (for MD5): RLR 4/27/91 **
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8 | ** -- G modified to have y&~z instead of y&z **
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9 | ** -- FF, GG, HH modified to add in last register done **
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10 | ** -- Access pattern: round 2 works mod 5, round 3 works mod 3 **
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11 | ** -- distinct additive constant for each step **
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12 | ** -- round 4 added, working mod 7 **
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13 | ***********************************************************************
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14 | */
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15 |
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16 | /*
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17 | ***********************************************************************
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18 | ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved. **
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19 | ** **
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20 | ** License to copy and use this software is granted provided that **
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21 | ** it is identified as the "RSA Data Security, Inc. MD5 Message- **
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22 | ** Digest Algorithm" in all material mentioning or referencing this **
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23 | ** software or this function. **
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24 | ** **
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25 | ** License is also granted to make and use derivative works **
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26 | ** provided that such works are identified as "derived from the RSA **
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27 | ** Data Security, Inc. MD5 Message-Digest Algorithm" in all **
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28 | ** material mentioning or referencing the derived work. **
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29 | ** **
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30 | ** RSA Data Security, Inc. makes no representations concerning **
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31 | ** either the merchantability of this software or the suitability **
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32 | ** of this software for any particular purpose. It is provided "as **
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33 | ** is" without express or implied warranty of any kind. **
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34 | ** **
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35 | ** These notices must be retained in any copies of any part of this **
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36 | ** documentation and/or software. **
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37 | ***********************************************************************
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38 | */
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39 |
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40 | #ifndef MD5_H
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41 | #define MD5_H
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42 |
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43 | /* Data structure for MD5 (Message-Digest) computation */
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44 | typedef struct {
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45 | u32_t i[2]; /* number of _bits_ handled mod 2^64 */
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46 | u32_t buf[4]; /* scratch buffer */
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47 | unsigned char in[64]; /* input buffer */
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48 | unsigned char digest[16]; /* actual digest after MD5Final call */
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49 | } MD5_CTX;
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50 |
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51 | void MD5Init ( MD5_CTX *mdContext);
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52 | void MD5Update( MD5_CTX *mdContext, unsigned char *inBuf, unsigned int inLen);
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53 | void MD5Final ( unsigned char hash[], MD5_CTX *mdContext);
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54 |
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55 | #endif /* MD5_H */
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