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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [pppd/] [md4.h] - Rev 359
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/* ** ******************************************************************** ** md4.h -- Header file for implementation of ** ** MD4 Message Digest Algorithm ** ** Updated: 2/13/90 by Ronald L. Rivest ** ** (C) 1990 RSA Data Security, Inc. ** ** ******************************************************************** */ #ifndef __P # if defined(__STDC__) || defined(__GNUC__) # define __P(x) x # else # define __P(x) () # endif #endif /* MDstruct is the data structure for a message digest computation. */ typedef struct { unsigned int buffer[4]; /* Holds 4-word result of MD computation */ unsigned char count[8]; /* Number of bits processed so far */ unsigned int done; /* Nonzero means MD computation finished */ } MD4_CTX; /* MD4Init(MD4_CTX *) ** Initialize the MD4_CTX prepatory to doing a message digest ** computation. */ extern void MD4Init __P((MD4_CTX *MD)); /* MD4Update(MD,X,count) ** Input: X -- a pointer to an array of unsigned characters. ** count -- the number of bits of X to use (an unsigned int). ** Updates MD using the first "count" bits of X. ** The array pointed to by X is not modified. ** If count is not a multiple of 8, MD4Update uses high bits of ** last byte. ** This is the basic input routine for a user. ** The routine terminates the MD computation when count < 512, so ** every MD computation should end with one call to MD4Update with a ** count less than 512. Zero is OK for a count. */ extern void MD4Update __P((MD4_CTX *MD, unsigned char *X, unsigned int count)); /* MD4Print(MD) ** Prints message digest buffer MD as 32 hexadecimal digits. ** Order is from low-order byte of buffer[0] to high-order byte ** of buffer[3]. ** Each byte is printed with high-order hexadecimal digit first. */ extern void MD4Print __P((MD4_CTX *)); /* MD4Final(buf, MD) ** Returns message digest from MD and terminates the message ** digest computation. */ extern void MD4Final __P((unsigned char *, MD4_CTX *)); /* ** End of md4.h ****************************(cut)***********************************/
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