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64 lines
2.1 KiB
64 lines
2.1 KiB
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/* |
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** ******************************************************************** |
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** md4.h -- Header file for implementation of ** |
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** MD4 Message Digest Algorithm ** |
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** Updated: 2/13/90 by Ronald L. Rivest ** |
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** (C) 1990 RSA Data Security, Inc. ** |
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** ******************************************************************** |
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*/ |
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#ifndef __P |
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# if defined(__STDC__) || defined(__GNUC__) |
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# define __P(x) x |
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# else |
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# define __P(x) () |
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# endif |
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#endif |
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/* MDstruct is the data structure for a message digest computation. |
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*/ |
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typedef struct { |
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unsigned int buffer[4]; /* Holds 4-word result of MD computation */ |
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unsigned char count[8]; /* Number of bits processed so far */ |
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unsigned int done; /* Nonzero means MD computation finished */ |
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} MD4_CTX; |
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/* MD4Init(MD4_CTX *) |
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** Initialize the MD4_CTX prepatory to doing a message digest |
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** computation. |
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*/ |
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extern void MD4Init __P((MD4_CTX *MD)); |
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/* MD4Update(MD,X,count) |
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** Input: X -- a pointer to an array of unsigned characters. |
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** count -- the number of bits of X to use (an unsigned int). |
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** Updates MD using the first "count" bits of X. |
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** The array pointed to by X is not modified. |
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** If count is not a multiple of 8, MD4Update uses high bits of |
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** last byte. |
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** This is the basic input routine for a user. |
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** The routine terminates the MD computation when count < 512, so |
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** every MD computation should end with one call to MD4Update with a |
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** count less than 512. Zero is OK for a count. |
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*/ |
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extern void MD4Update __P((MD4_CTX *MD, unsigned char *X, unsigned int count)); |
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/* MD4Print(MD) |
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** Prints message digest buffer MD as 32 hexadecimal digits. |
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** Order is from low-order byte of buffer[0] to high-order byte |
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** of buffer[3]. |
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** Each byte is printed with high-order hexadecimal digit first. |
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*/ |
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extern void MD4Print __P((MD4_CTX *)); |
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/* MD4Final(buf, MD) |
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** Returns message digest from MD and terminates the message |
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** digest computation. |
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*/ |
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extern void MD4Final __P((unsigned char *, MD4_CTX *)); |
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/* |
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** End of md4.h |
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****************************(cut)***********************************/
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