md5.h 2.9 KB

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