- initial import

git-svn-id: http://moon:8086/svn/mips@1 a8ebac50-d88d-4704-bea3-6648445a41b3

src/rmd160.h

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+/********************************************************************\
+ *
+ *      FILE:     rmd160.h
+ *
+ *      CONTENTS: Header file for a sample C-implementation of the
+ *                RIPEMD-160 hash-function. 
+ *      TARGET:   any computer with an ANSI C compiler
+ *
+ *      AUTHOR:   Antoon Bosselaers, ESAT-COSIC
+ *      DATE:     1 March 1996
+ *      VERSION:  1.0
+ *
+ *      Copyright (c) Katholieke Universiteit Leuven
+ *      1996, All Rights Reserved
+ *
+ *  Conditions for use of the RIPEMD-160 Software
+ *
+ *  The RIPEMD-160 software is freely available for use under the terms and
+ *  conditions described hereunder, which shall be deemed to be accepted by
+ *  any user of the software and applicable on any use of the software:
+ * 
+ *  1. K.U.Leuven Department of Electrical Engineering-ESAT/COSIC shall for
+ *     all purposes be considered the owner of the RIPEMD-160 software and of
+ *     all copyright, trade secret, patent or other intellectual property
+ *     rights therein.
+ *  2. The RIPEMD-160 software is provided on an "as is" basis without
+ *     warranty of any sort, express or implied. K.U.Leuven makes no
+ *     representation that the use of the software will not infringe any
+ *     patent or proprietary right of third parties. User will indemnify
+ *     K.U.Leuven and hold K.U.Leuven harmless from any claims or liabilities
+ *     which may arise as a result of its use of the software. In no
+ *     circumstances K.U.Leuven R&D will be held liable for any deficiency,
+ *     fault or other mishappening with regard to the use or performance of
+ *     the software.
+ *  3. User agrees to give due credit to K.U.Leuven in scientific publications 
+ *     or communications in relation with the use of the RIPEMD-160 software 
+ *     as follows: RIPEMD-160 software written by Antoon Bosselaers, 
+ *     available at http://www.esat.kuleuven.be/~cosicart/ps/AB-9601/.
+ *
+\********************************************************************/
+
+#ifndef  RMD160H           /* make sure this file is read only once */
+#define  RMD160H
+
+/********************************************************************/
+
+/* typedef 8 and 32 bit types, resp.  */
+/* adapt these, if necessary, 
+   for your operating system and compiler */
+typedef    unsigned char        byte;
+typedef    unsigned long        dword;
+
+
+/********************************************************************/
+
+/* macro definitions */
+
+/* collect four bytes into one word: */
+#define BYTES_TO_DWORD(strptr)                    \
+            (((dword) *((strptr)+3) << 24) | \
+             ((dword) *((strptr)+2) << 16) | \
+             ((dword) *((strptr)+1) <<  8) | \
+             ((dword) *(strptr)))
+
+/* ROL(x, n) cyclically rotates x over n bits to the left */
+/* x must be of an unsigned 32 bits type and 0 <= n < 32. */
+#define ROL(x, n)        (((x) << (n)) | ((x) >> (32-(n))))
+
+/* the five basic functions F(), G() and H() */
+#define F(x, y, z)        ((x) ^ (y) ^ (z)) 
+#define G(x, y, z)        (((x) & (y)) | (~(x) & (z))) 
+#define H(x, y, z)        (((x) | ~(y)) ^ (z))
+#define I(x, y, z)        (((x) & (z)) | ((y) & ~(z))) 
+#define J(x, y, z)        ((x) ^ ((y) | ~(z)))
+  
+/* the ten basic operations FF() through III() */
+#define FF(a, b, c, d, e, x, s)        {\
+      (a) += F((b), (c), (d)) + (x);\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define GG(a, b, c, d, e, x, s)        {\
+      (a) += G((b), (c), (d)) + (x) + 0x5a827999UL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define HH(a, b, c, d, e, x, s)        {\
+      (a) += H((b), (c), (d)) + (x) + 0x6ed9eba1UL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define II(a, b, c, d, e, x, s)        {\
+      (a) += I((b), (c), (d)) + (x) + 0x8f1bbcdcUL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define JJ(a, b, c, d, e, x, s)        {\
+      (a) += J((b), (c), (d)) + (x) + 0xa953fd4eUL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define FFF(a, b, c, d, e, x, s)        {\
+      (a) += F((b), (c), (d)) + (x);\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define GGG(a, b, c, d, e, x, s)        {\
+      (a) += G((b), (c), (d)) + (x) + 0x7a6d76e9UL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define HHH(a, b, c, d, e, x, s)        {\
+      (a) += H((b), (c), (d)) + (x) + 0x6d703ef3UL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define III(a, b, c, d, e, x, s)        {\
+      (a) += I((b), (c), (d)) + (x) + 0x5c4dd124UL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+#define JJJ(a, b, c, d, e, x, s)        {\
+      (a) += J((b), (c), (d)) + (x) + 0x50a28be6UL;\
+      (a) = ROL((a), (s)) + (e);\
+      (c) = ROL((c), 10);\
+   }
+
+/********************************************************************/
+
+/* function prototypes */
+
+void MDinit(dword *MDbuf);
+/*
+ *  initializes MDbuffer to "magic constants"
+ */
+
+void compress(dword *MDbuf, dword *X);
+/*
+ *  the compression function.
+ *  transforms MDbuf using message bytes X[0] through X[15]
+ */
+
+void MDfinish(dword *MDbuf, byte *strptr, dword lswlen, dword mswlen);
+/*
+ *  puts bytes from strptr into X and pad out; appends length 
+ *  and finally, compresses the last block(s)
+ *  note: length in bits == 8 * (lswlen + 2^32 mswlen).
+ *  note: there are (lswlen mod 64) bytes left in strptr.
+ */
+
+#endif  /* RMD160H */
+
+/*********************** end of file rmd160.h ***********************/
+