On Tue, Nov 28, 2000 at 03:47:58PM +0100, Alexander S A Kjeldaas wrote:
> Short list of changes:
> o New util-linux patch (util-linux-2.10o.int2). You need to recompile
> util-linux using this patch! ...
I think you're missing a few files from your patch. rmd160.c & .h
are missing and the prototype in lomount.h for set_loop() doesn't match
what is in mount.c (and my patch is probably incorrect since I'm more
interested in exercising my kernel patches than testing mount at the
moment). Anyway, you may want to take a look at it.
--- ./mount/mount.c.OLD Tue Nov 28 21:36:03 2000
+++ ./mount/mount.c Tue Nov 28 21:52:55 2000
@@ -575,7 +575,7 @@
if (verbose)
printf(_("mount: going to use the loop device %s\n"), *loopdev);
offset = opt_offset ? strtoul(opt_offset, NULL, 0) : 0;
- if (set_loop (*loopdev, *loopfile, offset, opt_encryption, pfd, &loopro)) {
+ if (set_loop (*loopdev, *loopfile, offset, opt_encryption, pfd, 0, &loopro)) {
if (verbose)
printf(_("mount: failed setting up loop device\n"));
return EX_FAIL;
--- ./mount/rmd160.c.OLD Tue Nov 28 22:03:14 2000
+++ ./mount/rmd160.c Thu Nov 9 22:47:04 2000
@@ -0,0 +1,532 @@
+/* rmd160.c - RIPE-MD160
+ * Copyright (C) 1998 Free Software Foundation, Inc.
+ */
+
+/* This file was part of GnuPG. Modified for use within the Linux
+ * mount utility by Marc Mutz <Marc@xxxxxxxx>. None of this code is
+ * by myself. I just removed everything that you don't need when all
+ * you want to do is to use rmd160_hash_buffer().
+ * My comments are marked with (mm). */
+
+/* GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */
+
+#include <string.h> /* (mm) for memcpy */
+#include <endian.h> /* (mm) for BIG_ENDIAN and BYTE_ORDER */
+#include "rmd160.h"
+
+/* (mm) these are used by the original GnuPG file. In order to modify
+ * that file not too much, we keep the notations. maybe it would be
+ * better to include linux/types.h and typedef __u32 to u32 and __u8
+ * to byte? */
+typedef unsigned int u32; /* taken from e.g. util-linux's minix.h */
+typedef unsigned char byte;
+
+typedef struct {
+ u32 h0,h1,h2,h3,h4;
+ u32 nblocks;
+ byte buf[64];
+ int count;
+} RMD160_CONTEXT;
+
+/****************
+ * Rotate a 32 bit integer by n bytes
+ */
+#if defined(__GNUC__) && defined(__i386__)
+static inline u32
+rol( u32 x, int n)
+{
+ __asm__("roll %%cl,%0"
+ :"=r" (x)
+ :"0" (x),"c" (n));
+ return x;
+}
+#else
+ #define rol(x,n) ( ((x) << (n)) | ((x) >> (32-(n))) )
+#endif
+
+/*********************************
+ * RIPEMD-160 is not patented, see (as of 25.10.97)
+ * http://www.esat.kuleuven.ac.be/~bosselae/ripemd160.html
+ * Note that the code uses Little Endian byteorder, which is good for
+ * 386 etc, but we must add some conversion when used on a big endian box.
+ *
+ *
+ * Pseudo-code for RIPEMD-160
+ *
+ * RIPEMD-160 is an iterative hash function that operates on 32-bit words.
+ * The round function takes as input a 5-word chaining variable and a 16-word
+ * message block and maps this to a new chaining variable. All operations are
+ * defined on 32-bit words. Padding is identical to that of MD4.
+ *
+ *
+ * RIPEMD-160: definitions
+ *
+ *
+ * nonlinear functions at bit level: exor, mux, -, mux, -
+ *
+ * f(j, x, y, z) = x XOR y XOR z (0 <= j <= 15)
+ * f(j, x, y, z) = (x AND y) OR (NOT(x) AND z) (16 <= j <= 31)
+ * f(j, x, y, z) = (x OR NOT(y)) XOR z (32 <= j <= 47)
+ * f(j, x, y, z) = (x AND z) OR (y AND NOT(z)) (48 <= j <= 63)
+ * f(j, x, y, z) = x XOR (y OR NOT(z)) (64 <= j <= 79)
+ *
+ *
+ * added constants (hexadecimal)
+ *
+ * K(j) = 0x00000000 (0 <= j <= 15)
+ * K(j) = 0x5A827999 (16 <= j <= 31) int(2**30 x sqrt(2))
+ * K(j) = 0x6ED9EBA1 (32 <= j <= 47) int(2**30 x sqrt(3))
+ * K(j) = 0x8F1BBCDC (48 <= j <= 63) int(2**30 x sqrt(5))
+ * K(j) = 0xA953FD4E (64 <= j <= 79) int(2**30 x sqrt(7))
+ * K'(j) = 0x50A28BE6 (0 <= j <= 15) int(2**30 x cbrt(2))
+ * K'(j) = 0x5C4DD124 (16 <= j <= 31) int(2**30 x cbrt(3))
+ * K'(j) = 0x6D703EF3 (32 <= j <= 47) int(2**30 x cbrt(5))
+ * K'(j) = 0x7A6D76E9 (48 <= j <= 63) int(2**30 x cbrt(7))
+ * K'(j) = 0x00000000 (64 <= j <= 79)
+ *
+ *
+ * selection of message word
+ *
+ * r(j) = j (0 <= j <= 15)
+ * r(16..31) = 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8
+ * r(32..47) = 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12
+ * r(48..63) = 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2
+ * r(64..79) = 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
+ * r0(0..15) = 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12
+ * r0(16..31)= 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2
+ * r0(32..47)= 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13
+ * r0(48..63)= 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14
+ * r0(64..79)= 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
+ *
+ *
+ * amount for rotate left (rol)
+ *
+ * s(0..15) = 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8
+ * s(16..31) = 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12
+ * s(32..47) = 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5
+ * s(48..63) = 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12
+ * s(64..79) = 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
+ * s'(0..15) = 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6
+ * s'(16..31)= 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11
+ * s'(32..47)= 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5
+ * s'(48..63)= 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8
+ * s'(64..79)= 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
+ *
+ *
+ * initial value (hexadecimal)
+ *
+ * h0 = 0x67452301; h1 = 0xEFCDAB89; h2 = 0x98BADCFE; h3 = 0x10325476;
+ * h4 = 0xC3D2E1F0;
+ *
+ *
+ * RIPEMD-160: pseudo-code
+ *
+ * It is assumed that the message after padding consists of t 16-word blocks
+ * that will be denoted with X[i][j], with 0 <= i <= t-1 and 0 <= j <= 15.
+ * The symbol [+] denotes addition modulo 2**32 and rol_s denotes cyclic left
+ * shift (rotate) over s positions.
+ *
+ *
+ * for i := 0 to t-1 {
+ * A := h0; B := h1; C := h2; D = h3; E = h4;
+ * A' := h0; B' := h1; C' := h2; D' = h3; E' = h4;
+ * for j := 0 to 79 {
+ * T := rol_s(j)(A [+] f(j, B, C, D) [+] X[i][r(j)] [+] K(j)) [+] E;
+ * A := E; E := D; D := rol_10(C); C := B; B := T;
+ * T := rol_s'(j)(A' [+] f(79-j, B', C', D') [+] X[i][r'(j)]
+ [+] K'(j)) [+] E';
+ * A' := E'; E' := D'; D' := rol_10(C'); C' := B'; B' := T;
+ * }
+ * T := h1 [+] C [+] D'; h1 := h2 [+] D [+] E'; h2 := h3 [+] E [+] A';
+ * h3 := h4 [+] A [+] B'; h4 := h0 [+] B [+] C'; h0 := T;
+ * }
+ */
+
+/* Some examples:
+ * "" 9c1185a5c5e9fc54612808977ee8f548b2258d31
+ * "a" 0bdc9d2d256b3ee9daae347be6f4dc835a467ffe
+ * "abc" 8eb208f7e05d987a9b044a8e98c6b087f15a0bfc
+ * "message digest" 5d0689ef49d2fae572b881b123a85ffa21595f36
+ * "a...z" f71c27109c692c1b56bbdceb5b9d2865b3708dbc
+ * "abcdbcde...nopq" 12a053384a9c0c88e405a06c27dcf49ada62eb2b
+ * "A...Za...z0...9" b0e20b6e3116640286ed3a87a5713079b21f5189
+ * 8 times "1234567890" 9b752e45573d4b39f4dbd3323cab82bf63326bfb
+ * 1 million times "a" 52783243c1697bdbe16d37f97f68f08325dc1528
+ */
+
+
+static void
+rmd160_init( RMD160_CONTEXT *hd )
+{
+ hd->h0 = 0x67452301;
+ hd->h1 = 0xEFCDAB89;
+ hd->h2 = 0x98BADCFE;
+ hd->h3 = 0x10325476;
+ hd->h4 = 0xC3D2E1F0;
+ hd->nblocks = 0;
+ hd->count = 0;
+}
+
+
+
+/****************
+ * Transform the message X which consists of 16 32-bit-words
+ */
+static void
+transform( RMD160_CONTEXT *hd, byte *data )
+{
+ u32 a,b,c,d,e,aa,bb,cc,dd,ee,t;
+ #if BYTE_ORDER == BIG_ENDIAN
+ u32 x[16];
+ { int i;
+ byte *p2, *p1;
+ for(i=0, p1=data, p2=(byte*)x; i < 16; i++, p2 += 4 ) {
+ p2[3] = *p1++;
+ p2[2] = *p1++;
+ p2[1] = *p1++;
+ p2[0] = *p1++;
+ }
+ }
+ #else
+ #if 0
+ u32 *x =(u32*)data;
+ #else
+ /* this version is better because it is always aligned;
+ * The performance penalty on a 586-100 is about 6% which
+ * is acceptable - because the data is more local it might
+ * also be possible that this is faster on some machines.
+ * This function (when compiled with -02 on gcc 2.7.2)
+ * executes on a 586-100 (39.73 bogomips) at about 1900kb/sec;
+ * [measured with a 4MB data and "gpgm --print-md rmd160"] */
+ u32 x[16];
+ memcpy( x, data, 64 );
+ #endif
+ #endif
+
+
+#define K0 0x00000000
+#define K1 0x5A827999
+#define K2 0x6ED9EBA1
+#define K3 0x8F1BBCDC
+#define K4 0xA953FD4E
+#define KK0 0x50A28BE6
+#define KK1 0x5C4DD124
+#define KK2 0x6D703EF3
+#define KK3 0x7A6D76E9
+#define KK4 0x00000000
+#define F0(x,y,z) ( (x) ^ (y) ^ (z) )
+#define F1(x,y,z) ( ((x) & (y)) | (~(x) & (z)) )
+#define F2(x,y,z) ( ((x) | ~(y)) ^ (z) )
+#define F3(x,y,z) ( ((x) & (z)) | ((y) & ~(z)) )
+#define F4(x,y,z) ( (x) ^ ((y) | ~(z)) )
+#define R(a,b,c,d,e,f,k,r,s) do { t = a + f(b,c,d) + k + x[r]; \
+ a = rol(t,s) + e; \
+ c = rol(c,10); \
+ } while(0)
+
+ /* left lane */
+ a = hd->h0;
+ b = hd->h1;
+ c = hd->h2;
+ d = hd->h3;
+ e = hd->h4;
+ R( a, b, c, d, e, F0, K0, 0, 11 );
+ R( e, a, b, c, d, F0, K0, 1, 14 );
+ R( d, e, a, b, c, F0, K0, 2, 15 );
+ R( c, d, e, a, b, F0, K0, 3, 12 );
+ R( b, c, d, e, a, F0, K0, 4, 5 );
+ R( a, b, c, d, e, F0, K0, 5, 8 );
+ R( e, a, b, c, d, F0, K0, 6, 7 );
+ R( d, e, a, b, c, F0, K0, 7, 9 );
+ R( c, d, e, a, b, F0, K0, 8, 11 );
+ R( b, c, d, e, a, F0, K0, 9, 13 );
+ R( a, b, c, d, e, F0, K0, 10, 14 );
+ R( e, a, b, c, d, F0, K0, 11, 15 );
+ R( d, e, a, b, c, F0, K0, 12, 6 );
+ R( c, d, e, a, b, F0, K0, 13, 7 );
+ R( b, c, d, e, a, F0, K0, 14, 9 );
+ R( a, b, c, d, e, F0, K0, 15, 8 );
+ R( e, a, b, c, d, F1, K1, 7, 7 );
+ R( d, e, a, b, c, F1, K1, 4, 6 );
+ R( c, d, e, a, b, F1, K1, 13, 8 );
+ R( b, c, d, e, a, F1, K1, 1, 13 );
+ R( a, b, c, d, e, F1, K1, 10, 11 );
+ R( e, a, b, c, d, F1, K1, 6, 9 );
+ R( d, e, a, b, c, F1, K1, 15, 7 );
+ R( c, d, e, a, b, F1, K1, 3, 15 );
+ R( b, c, d, e, a, F1, K1, 12, 7 );
+ R( a, b, c, d, e, F1, K1, 0, 12 );
+ R( e, a, b, c, d, F1, K1, 9, 15 );
+ R( d, e, a, b, c, F1, K1, 5, 9 );
+ R( c, d, e, a, b, F1, K1, 2, 11 );
+ R( b, c, d, e, a, F1, K1, 14, 7 );
+ R( a, b, c, d, e, F1, K1, 11, 13 );
+ R( e, a, b, c, d, F1, K1, 8, 12 );
+ R( d, e, a, b, c, F2, K2, 3, 11 );
+ R( c, d, e, a, b, F2, K2, 10, 13 );
+ R( b, c, d, e, a, F2, K2, 14, 6 );
+ R( a, b, c, d, e, F2, K2, 4, 7 );
+ R( e, a, b, c, d, F2, K2, 9, 14 );
+ R( d, e, a, b, c, F2, K2, 15, 9 );
+ R( c, d, e, a, b, F2, K2, 8, 13 );
+ R( b, c, d, e, a, F2, K2, 1, 15 );
+ R( a, b, c, d, e, F2, K2, 2, 14 );
+ R( e, a, b, c, d, F2, K2, 7, 8 );
+ R( d, e, a, b, c, F2, K2, 0, 13 );
+ R( c, d, e, a, b, F2, K2, 6, 6 );
+ R( b, c, d, e, a, F2, K2, 13, 5 );
+ R( a, b, c, d, e, F2, K2, 11, 12 );
+ R( e, a, b, c, d, F2, K2, 5, 7 );
+ R( d, e, a, b, c, F2, K2, 12, 5 );
+ R( c, d, e, a, b, F3, K3, 1, 11 );
+ R( b, c, d, e, a, F3, K3, 9, 12 );
+ R( a, b, c, d, e, F3, K3, 11, 14 );
+ R( e, a, b, c, d, F3, K3, 10, 15 );
+ R( d, e, a, b, c, F3, K3, 0, 14 );
+ R( c, d, e, a, b, F3, K3, 8, 15 );
+ R( b, c, d, e, a, F3, K3, 12, 9 );
+ R( a, b, c, d, e, F3, K3, 4, 8 );
+ R( e, a, b, c, d, F3, K3, 13, 9 );
+ R( d, e, a, b, c, F3, K3, 3, 14 );
+ R( c, d, e, a, b, F3, K3, 7, 5 );
+ R( b, c, d, e, a, F3, K3, 15, 6 );
+ R( a, b, c, d, e, F3, K3, 14, 8 );
+ R( e, a, b, c, d, F3, K3, 5, 6 );
+ R( d, e, a, b, c, F3, K3, 6, 5 );
+ R( c, d, e, a, b, F3, K3, 2, 12 );
+ R( b, c, d, e, a, F4, K4, 4, 9 );
+ R( a, b, c, d, e, F4, K4, 0, 15 );
+ R( e, a, b, c, d, F4, K4, 5, 5 );
+ R( d, e, a, b, c, F4, K4, 9, 11 );
+ R( c, d, e, a, b, F4, K4, 7, 6 );
+ R( b, c, d, e, a, F4, K4, 12, 8 );
+ R( a, b, c, d, e, F4, K4, 2, 13 );
+ R( e, a, b, c, d, F4, K4, 10, 12 );
+ R( d, e, a, b, c, F4, K4, 14, 5 );
+ R( c, d, e, a, b, F4, K4, 1, 12 );
+ R( b, c, d, e, a, F4, K4, 3, 13 );
+ R( a, b, c, d, e, F4, K4, 8, 14 );
+ R( e, a, b, c, d, F4, K4, 11, 11 );
+ R( d, e, a, b, c, F4, K4, 6, 8 );
+ R( c, d, e, a, b, F4, K4, 15, 5 );
+ R( b, c, d, e, a, F4, K4, 13, 6 );
+
+ aa = a; bb = b; cc = c; dd = d; ee = e;
+
+ /* right lane */
+ a = hd->h0;
+ b = hd->h1;
+ c = hd->h2;
+ d = hd->h3;
+ e = hd->h4;
+ R( a, b, c, d, e, F4, KK0, 5, 8);
+ R( e, a, b, c, d, F4, KK0, 14, 9);
+ R( d, e, a, b, c, F4, KK0, 7, 9);
+ R( c, d, e, a, b, F4, KK0, 0, 11);
+ R( b, c, d, e, a, F4, KK0, 9, 13);
+ R( a, b, c, d, e, F4, KK0, 2, 15);
+ R( e, a, b, c, d, F4, KK0, 11, 15);
+ R( d, e, a, b, c, F4, KK0, 4, 5);
+ R( c, d, e, a, b, F4, KK0, 13, 7);
+ R( b, c, d, e, a, F4, KK0, 6, 7);
+ R( a, b, c, d, e, F4, KK0, 15, 8);
+ R( e, a, b, c, d, F4, KK0, 8, 11);
+ R( d, e, a, b, c, F4, KK0, 1, 14);
+ R( c, d, e, a, b, F4, KK0, 10, 14);
+ R( b, c, d, e, a, F4, KK0, 3, 12);
+ R( a, b, c, d, e, F4, KK0, 12, 6);
+ R( e, a, b, c, d, F3, KK1, 6, 9);
+ R( d, e, a, b, c, F3, KK1, 11, 13);
+ R( c, d, e, a, b, F3, KK1, 3, 15);
+ R( b, c, d, e, a, F3, KK1, 7, 7);
+ R( a, b, c, d, e, F3, KK1, 0, 12);
+ R( e, a, b, c, d, F3, KK1, 13, 8);
+ R( d, e, a, b, c, F3, KK1, 5, 9);
+ R( c, d, e, a, b, F3, KK1, 10, 11);
+ R( b, c, d, e, a, F3, KK1, 14, 7);
+ R( a, b, c, d, e, F3, KK1, 15, 7);
+ R( e, a, b, c, d, F3, KK1, 8, 12);
+ R( d, e, a, b, c, F3, KK1, 12, 7);
+ R( c, d, e, a, b, F3, KK1, 4, 6);
+ R( b, c, d, e, a, F3, KK1, 9, 15);
+ R( a, b, c, d, e, F3, KK1, 1, 13);
+ R( e, a, b, c, d, F3, KK1, 2, 11);
+ R( d, e, a, b, c, F2, KK2, 15, 9);
+ R( c, d, e, a, b, F2, KK2, 5, 7);
+ R( b, c, d, e, a, F2, KK2, 1, 15);
+ R( a, b, c, d, e, F2, KK2, 3, 11);
+ R( e, a, b, c, d, F2, KK2, 7, 8);
+ R( d, e, a, b, c, F2, KK2, 14, 6);
+ R( c, d, e, a, b, F2, KK2, 6, 6);
+ R( b, c, d, e, a, F2, KK2, 9, 14);
+ R( a, b, c, d, e, F2, KK2, 11, 12);
+ R( e, a, b, c, d, F2, KK2, 8, 13);
+ R( d, e, a, b, c, F2, KK2, 12, 5);
+ R( c, d, e, a, b, F2, KK2, 2, 14);
+ R( b, c, d, e, a, F2, KK2, 10, 13);
+ R( a, b, c, d, e, F2, KK2, 0, 13);
+ R( e, a, b, c, d, F2, KK2, 4, 7);
+ R( d, e, a, b, c, F2, KK2, 13, 5);
+ R( c, d, e, a, b, F1, KK3, 8, 15);
+ R( b, c, d, e, a, F1, KK3, 6, 5);
+ R( a, b, c, d, e, F1, KK3, 4, 8);
+ R( e, a, b, c, d, F1, KK3, 1, 11);
+ R( d, e, a, b, c, F1, KK3, 3, 14);
+ R( c, d, e, a, b, F1, KK3, 11, 14);
+ R( b, c, d, e, a, F1, KK3, 15, 6);
+ R( a, b, c, d, e, F1, KK3, 0, 14);
+ R( e, a, b, c, d, F1, KK3, 5, 6);
+ R( d, e, a, b, c, F1, KK3, 12, 9);
+ R( c, d, e, a, b, F1, KK3, 2, 12);
+ R( b, c, d, e, a, F1, KK3, 13, 9);
+ R( a, b, c, d, e, F1, KK3, 9, 12);
+ R( e, a, b, c, d, F1, KK3, 7, 5);
+ R( d, e, a, b, c, F1, KK3, 10, 15);
+ R( c, d, e, a, b, F1, KK3, 14, 8);
+ R( b, c, d, e, a, F0, KK4, 12, 8);
+ R( a, b, c, d, e, F0, KK4, 15, 5);
+ R( e, a, b, c, d, F0, KK4, 10, 12);
+ R( d, e, a, b, c, F0, KK4, 4, 9);
+ R( c, d, e, a, b, F0, KK4, 1, 12);
+ R( b, c, d, e, a, F0, KK4, 5, 5);
+ R( a, b, c, d, e, F0, KK4, 8, 14);
+ R( e, a, b, c, d, F0, KK4, 7, 6);
+ R( d, e, a, b, c, F0, KK4, 6, 8);
+ R( c, d, e, a, b, F0, KK4, 2, 13);
+ R( b, c, d, e, a, F0, KK4, 13, 6);
+ R( a, b, c, d, e, F0, KK4, 14, 5);
+ R( e, a, b, c, d, F0, KK4, 0, 15);
+ R( d, e, a, b, c, F0, KK4, 3, 13);
+ R( c, d, e, a, b, F0, KK4, 9, 11);
+ R( b, c, d, e, a, F0, KK4, 11, 11);
+
+
+ t = hd->h1 + d + cc;
+ hd->h1 = hd->h2 + e + dd;
+ hd->h2 = hd->h3 + a + ee;
+ hd->h3 = hd->h4 + b + aa;
+ hd->h4 = hd->h0 + c + bb;
+ hd->h0 = t;
+}
+
+
+/* Update the message digest with the contents
+ * of INBUF with length INLEN.
+ */
+static void
+rmd160_write( RMD160_CONTEXT *hd, byte *inbuf, size_t inlen)
+{
+ if( hd->count == 64 ) { /* flush the buffer */
+ transform( hd, hd->buf );
+ hd->count = 0;
+ hd->nblocks++;
+ }
+ if( !inbuf )
+ return;
+ if( hd->count ) {
+ for( ; inlen && hd->count < 64; inlen-- )
+ hd->buf[hd->count++] = *inbuf++;
+ rmd160_write( hd, NULL, 0 );
+ if( !inlen )
+ return;
+ }
+
+ while( inlen >= 64 ) {
+ transform( hd, inbuf );
+ hd->count = 0;
+ hd->nblocks++;
+ inlen -= 64;
+ inbuf += 64;
+ }
+ for( ; inlen && hd->count < 64; inlen-- )
+ hd->buf[hd->count++] = *inbuf++;
+}
+
+/* The routine terminates the computation
+ */
+
+static void
+rmd160_final( RMD160_CONTEXT *hd )
+{
+ u32 t, msb, lsb;
+ byte *p;
+
+ rmd160_write(hd, NULL, 0); /* flush */;
+
+ msb = 0;
+ t = hd->nblocks;
+ if( (lsb = t << 6) < t ) /* multiply by 64 to make a byte count */
+ msb++;
+ msb += t >> 26;
+ t = lsb;
+ if( (lsb = t + hd->count) < t ) /* add the count */
+ msb++;
+ t = lsb;
+ if( (lsb = t << 3) < t ) /* multiply by 8 to make a bit count */
+ msb++;
+ msb += t >> 29;
+
+ if( hd->count < 56 ) { /* enough room */
+ hd->buf[hd->count++] = 0x80; /* pad */
+ while( hd->count < 56 )
+ hd->buf[hd->count++] = 0; /* pad */
+ }
+ else { /* need one extra block */
+ hd->buf[hd->count++] = 0x80; /* pad character */
+ while( hd->count < 64 )
+ hd->buf[hd->count++] = 0;
+ rmd160_write(hd, NULL, 0); /* flush */;
+ memset(hd->buf, 0, 56 ); /* fill next block with zeroes */
+ }
+ /* append the 64 bit count */
+ hd->buf[56] = lsb ;
+ hd->buf[57] = lsb >> 8;
+ hd->buf[58] = lsb >> 16;
+ hd->buf[59] = lsb >> 24;
+ hd->buf[60] = msb ;
+ hd->buf[61] = msb >> 8;
+ hd->buf[62] = msb >> 16;
+ hd->buf[63] = msb >> 24;
+ transform( hd, hd->buf );
+
+ p = hd->buf;
+ #if BYTE_ORDER == BIG_ENDIAN
+ #define X(a) do { *p++ = hd->h##a ; *p++ = hd->h##a >> 8; \
+ *p++ = hd->h##a >> 16; *p++ = hd->h##a >> 24; } while(0)
+ #else /* little endian */
+ #define X(a) do { *(u32*)p = hd->h##a ; p += 4; } while(0)
+ #endif
+ X(0);
+ X(1);
+ X(2);
+ X(3);
+ X(4);
+ #undef X
+}
+
+/****************
+ * Shortcut functions which puts the hash value of the supplied buffer
+ * into outbuf which must have a size of 20 bytes.
+ */
+void
+rmd160_hash_buffer( char *outbuf, const char *buffer, size_t length )
+{
+ RMD160_CONTEXT hd;
+
+ rmd160_init( &hd );
+ rmd160_write( &hd, (byte*)buffer, length );
+ rmd160_final( &hd );
+ memcpy( outbuf, hd.buf, 20 );
+}
--- ./mount/rmd160.h.OLD Tue Nov 28 22:03:17 2000
+++ ./mount/rmd160.h Thu Nov 9 22:47:04 2000
@@ -0,0 +1,9 @@
+#ifndef RMD160_H
+#define RMD160_H
+
+void
+rmd160_hash_buffer( char *outbuf, const char *buffer, size_t length );
+
+#endif /*RMD160_H*/
+
+
