1 /* MD4.H - header file for MD4C.C 2 */ 3 4 /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All 5 rights reserved. 6 7 License to copy and use this software is granted provided that it 8 is identified as the "RSA Data Security, Inc. MD4 Message-Digest 9 Algorithm" in all material mentioning or referencing this software 10 or this function. 11 12 License is also granted to make and use derivative works provided 13 that such works are identified as "derived from the RSA Data 14 Security, Inc. MD4 Message-Digest Algorithm" in all material 15 mentioning or referencing the derived work. 16 17 RSA Data Security, Inc. makes no representations concerning either 18 the merchantability of this software or the suitability of this 19 software for any particular purpose. It is provided "as is" 20 without express or implied warranty of any kind. 21 22 These notices must be retained in any copies of any part of this 23 documentation and/or software. 24 */ 25 26 #ifndef md4_h_INCLUDE 27 #define md4_h_INCLUDE 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 /* PROTOTYPES should be set to one if and only if the compiler supports 34 function argument prototyping. 35 The following makes PROTOTYPES default to 0 if it has not already 36 been defined with C compiler flags. 37 */ 38 #ifndef PROTOTYPES 39 #define PROTOTYPES 1 40 #endif 41 42 43 /* POINTER defines a generic pointer type */ 44 typedef unsigned char *POINTER; 45 46 /* UINT2 defines a two byte word */ 47 typedef unsigned short int UINT2; 48 49 /* UINT4 defines a four byte word */ 50 typedef unsigned int UINT4; 51 52 /* PROTO_LIST is defined depending on how PROTOTYPES is defined above. 53 If using PROTOTYPES, then PROTO_LIST returns the list, otherwise it 54 returns an empty list. 55 */ 56 57 #if PROTOTYPES 58 #define PROTO_LIST(list) list 59 #else 60 #define PROTO_LIST(list) () 61 #endif 62 63 /* MD4 context. */ 64 typedef struct { 65 UINT4 state[4]; /* state (ABCD) */ 66 UINT4 count[2]; /* number of bits, modulo 2^64 (lsb first) */ 67 unsigned char buffer[64]; /* input buffer */ 68 } MD4_CTX; 69 70 void MD4Init PROTO_LIST ((MD4_CTX *)); 71 void MD4Update PROTO_LIST 72 ((MD4_CTX *, unsigned char *, unsigned int)); 73 void MD4Final PROTO_LIST ((unsigned char [16], MD4_CTX *)); 74 75 #ifdef __cplusplus 76 } 77 #endif 78 79 #endif /* _md4_h_INCLUDE */ 80