RTEMS: cpukit/include/md4.h Source File

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md4.h
1/*
2** ********************************************************************
3** md4.h -- Header file for implementation of **
4** MD4 Message Digest Algorithm **
5** Updated: 2/13/90 by Ronald L. Rivest **
6** (C) 1990 RSA Data Security, Inc. **
7** ********************************************************************
8*/
9
10#include <stdint.h>
11
12/* MDstruct is the data structure for a message digest computation.
13*/
14 typedef struct {
15 uint32_t buffer[4]; /* Holds 4-word result of MD computation */
16 uint8_t count[8]; /* Number of bits processed so far */
17 uint32_t done; /* Nonzero means MD computation finished */
18} MD4_CTX;
19
20/* MD4Init(MD4_CTX *)
21** Initialize the MD4_CTX prepatory to doing a message digest
22** computation.
23*/
24extern void MD4Init(MD4_CTX *MD);
25
26/* MD4Update(MD,X,count)
27** Input: X -- a pointer to an array of unsigned characters.
28** count -- the number of bits of X to use (an unsigned int).
29** Updates MD using the first "count" bits of X.
30** The array pointed to by X is not modified.
31** If count is not a multiple of 8, MD4Update uses high bits of
32** last byte.
33** This is the basic input routine for a user.
34** The routine terminates the MD computation when count < 512, so
35** every MD computation should end with one call to MD4Update with a
36** count less than 512. Zero is OK for a count.
37*/
38extern void MD4Update(MD4_CTX *MD, unsigned char *X, unsigned int count);
39
40/* MD4Print(MD)
41** Prints message digest buffer MD as 32 hexadecimal digits.
42** Order is from low-order byte of buffer[0] to high-order byte
43** of buffer[3].
44** Each byte is printed with high-order hexadecimal digit first.
45*/
46extern void MD4Print(MD4_CTX *);
47
48/* MD4Final(buf, MD)
49** Returns message digest from MD and terminates the message
50** digest computation.
51*/
52extern void MD4Final(unsigned char *, MD4_CTX *);
53
54/*
55** End of md4.h
56****************************(cut)***********************************/
MD4_CTX
Definition: md4.h:14