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-rw-r--r--missing/crypt.c1159
1 files changed, 925 insertions, 234 deletions
diff --git a/missing/crypt.c b/missing/crypt.c
index 9f9b562c36..f523aa51e6 100644
--- a/missing/crypt.c
+++ b/missing/crypt.c
@@ -1,276 +1,967 @@
-/* From Andy Tanenbaum's book "Computer Networks",
- rewritten in C
-*/
-
-struct block {
- unsigned char b_data[64];
+/*
+ * Copyright (c) 1989, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Tom Truscott.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)crypt.c 8.1 (Berkeley) 6/4/93";
+#endif /* LIBC_SCCS and not lint */
+
+#include "ruby/missing.h"
+#include "crypt.h"
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <limits.h>
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+#include <stdio.h>
+#include <string.h>
+#ifndef _PASSWORD_EFMT1
+#define _PASSWORD_EFMT1 '_'
+#endif
+
+#ifndef numberof
+#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
+#endif
+
+/*
+ * UNIX password, and DES, encryption.
+ * By Tom Truscott, trt@rti.rti.org,
+ * from algorithms by Robert W. Baldwin and James Gillogly.
+ *
+ * References:
+ * "Mathematical Cryptology for Computer Scientists and Mathematicians,"
+ * by Wayne Patterson, 1987, ISBN 0-8476-7438-X.
+ *
+ * "Password Security: A Case History," R. Morris and Ken Thompson,
+ * Communications of the ACM, vol. 22, pp. 594-597, Nov. 1979.
+ *
+ * "DES will be Totally Insecure within Ten Years," M.E. Hellman,
+ * IEEE Spectrum, vol. 16, pp. 32-39, July 1979.
+ */
+
+/* ===== Configuration ==================== */
+
+/*
+ * define "MUST_ALIGN" if your compiler cannot load/store
+ * long integers at arbitrary (e.g. odd) memory locations.
+ * (Either that or never pass unaligned addresses to des_cipher!)
+ */
+#if !defined(vax)
+#define MUST_ALIGN
+#endif
+
+#ifdef CHAR_BITS
+#if CHAR_BITS != 8
+ #error C_block structure assumes 8 bit characters
+#endif
+#endif
+
+#ifndef INIT_DES
+# if defined DUMP || defined NO_DES_TABLES
+# define INIT_DES 1
+# else
+# define INIT_DES 0
+# endif
+#endif
+#if !INIT_DES
+# include "des_tables.c"
+# ifdef HAVE_DES_TABLES
+# define init_des() ((void)0)
+# else
+# undef INIT_DES
+# define INIT_DES 1
+# endif
+#endif
+
+/*
+ * Convert twenty-four-bit long in host-order
+ * to six bits (and 2 low-order zeroes) per char little-endian format.
+ */
+#define TO_SIX_BIT(rslt, src) { \
+ C_block cvt; \
+ cvt.b[0] = (unsigned char)(src); (src) >>= 6; \
+ cvt.b[1] = (unsigned char)(src); (src) >>= 6; \
+ cvt.b[2] = (unsigned char)(src); (src) >>= 6; \
+ cvt.b[3] = (unsigned char)(src); \
+ (rslt) = (cvt.b32.i0 & 0x3f3f3f3fL) << 2; \
+ }
+
+/*
+ * These macros may someday permit efficient use of 64-bit integers.
+ */
+#define ZERO(d,d0,d1) ((d0) = 0, (d1) = 0)
+#define LOAD(d,d0,d1,bl) ((d0) = (bl).b32.i0, (d1) = (bl).b32.i1)
+#define LOADREG(d,d0,d1,s,s0,s1) ((d0) = (s0), (d1) = (s1))
+#define OR(d,d0,d1,bl) ((d0) |= (bl).b32.i0, (d1) |= (bl).b32.i1)
+#define STORE(s,s0,s1,bl) ((bl).b32.i0 = (s0), (bl).b32.i1 = (s1))
+#define DCL_BLOCK(d,d0,d1) long d0, d1
+
+#if defined(LARGEDATA)
+ /* Waste memory like crazy. Also, do permutations in line */
+#define PERM6464(d,d0,d1,cpp,p) \
+ LOAD((d),(d0),(d1),(p)[(0<<CHUNKBITS)+(cpp)[0]]); \
+ OR ((d),(d0),(d1),(p)[(1<<CHUNKBITS)+(cpp)[1]]); \
+ OR ((d),(d0),(d1),(p)[(2<<CHUNKBITS)+(cpp)[2]]); \
+ OR ((d),(d0),(d1),(p)[(3<<CHUNKBITS)+(cpp)[3]]); \
+ OR (d),(d0),(d1),(p)[(4<<CHUNKBITS)+(cpp)[4]]); \
+ OR (d),(d0),(d1),(p)[(5<<CHUNKBITS)+(cpp)[5]]); \
+ OR (d),(d0),(d1),(p)[(6<<CHUNKBITS)+(cpp)[6]]); \
+ OR (d),(d0),(d1),(p)[(7<<CHUNKBITS)+(cpp)[7]]);
+#define PERM3264(d,d0,d1,cpp,p) \
+ LOAD((d),(d0),(d1),(p)[(0<<CHUNKBITS)+(cpp)[0]]); \
+ OR ((d),(d0),(d1),(p)[(1<<CHUNKBITS)+(cpp)[1]]); \
+ OR ((d),(d0),(d1),(p)[(2<<CHUNKBITS)+(cpp)[2]]); \
+ OR ((d),(d0),(d1),(p)[(3<<CHUNKBITS)+(cpp)[3]]);
+#else
+ /* "small data" */
+#define PERM6464(d,d0,d1,cpp,p) \
+ { C_block tblk; permute((cpp),&tblk,(p),8); LOAD ((d),(d0),(d1),tblk); }
+#define PERM3264(d,d0,d1,cpp,p) \
+ { C_block tblk; permute((cpp),&tblk,(p),4); LOAD ((d),(d0),(d1),tblk); }
+
+STATIC void
+permute(const unsigned char *cp, C_block *out, register const C_block *p, int chars_in)
+{
+ register DCL_BLOCK(D,D0,D1);
+ register const C_block *tp;
+ register int t;
+
+ ZERO(D,D0,D1);
+ do {
+ t = *cp++;
+ tp = &p[t&0xf]; OR(D,D0,D1,*tp); p += (1<<CHUNKBITS);
+ tp = &p[t>>4]; OR(D,D0,D1,*tp); p += (1<<CHUNKBITS);
+ } while (--chars_in > 0);
+ STORE(D,D0,D1,*out);
+}
+#endif /* LARGEDATA */
+
+#ifdef DEBUG
+STATIC void prtab(const char *s, const unsigned char *t, int num_rows);
+#endif
+
+#if INIT_DES
+/* ===== (mostly) Standard DES Tables ==================== */
+
+static const unsigned char IP[] = { /* initial permutation */
+ 58, 50, 42, 34, 26, 18, 10, 2,
+ 60, 52, 44, 36, 28, 20, 12, 4,
+ 62, 54, 46, 38, 30, 22, 14, 6,
+ 64, 56, 48, 40, 32, 24, 16, 8,
+ 57, 49, 41, 33, 25, 17, 9, 1,
+ 59, 51, 43, 35, 27, 19, 11, 3,
+ 61, 53, 45, 37, 29, 21, 13, 5,
+ 63, 55, 47, 39, 31, 23, 15, 7,
};
-struct ordering {
- unsigned char o_data[64];
+/* The final permutation is the inverse of IP - no table is necessary */
+
+static const unsigned char ExpandTr[] = { /* expansion operation */
+ 32, 1, 2, 3, 4, 5,
+ 4, 5, 6, 7, 8, 9,
+ 8, 9, 10, 11, 12, 13,
+ 12, 13, 14, 15, 16, 17,
+ 16, 17, 18, 19, 20, 21,
+ 20, 21, 22, 23, 24, 25,
+ 24, 25, 26, 27, 28, 29,
+ 28, 29, 30, 31, 32, 1,
};
-static struct block key;
+static const unsigned char PC1[] = { /* permuted choice table 1 */
+ 57, 49, 41, 33, 25, 17, 9,
+ 1, 58, 50, 42, 34, 26, 18,
+ 10, 2, 59, 51, 43, 35, 27,
+ 19, 11, 3, 60, 52, 44, 36,
-static struct ordering InitialTr = {
- 58,50,42,34,26,18,10, 2,60,52,44,36,28,20,12, 4,
- 62,54,46,38,30,22,14, 6,64,56,48,40,32,24,16, 8,
- 57,49,41,33,25,17, 9, 1,59,51,43,35,27,19,11, 3,
- 61,53,45,37,29,21,13, 5,63,55,47,39,31,23,15, 7,
+ 63, 55, 47, 39, 31, 23, 15,
+ 7, 62, 54, 46, 38, 30, 22,
+ 14, 6, 61, 53, 45, 37, 29,
+ 21, 13, 5, 28, 20, 12, 4,
};
+#endif
-static struct ordering FinalTr = {
- 40, 8,48,16,56,24,64,32,39, 7,47,15,55,23,63,31,
- 38, 6,46,14,54,22,62,30,37, 5,45,13,53,21,61,29,
- 36, 4,44,12,52,20,60,28,35, 3,43,11,51,19,59,27,
- 34, 2,42,10,50,18,58,26,33, 1,41, 9,49,17,57,25,
+static const unsigned char Rotates[] = { /* PC1 rotation schedule */
+ 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1,
};
-static struct ordering swap = {
- 33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,
- 49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,
- 17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,
+#if INIT_DES
+/* note: each "row" of PC2 is left-padded with bits that make it invertible */
+static const unsigned char PC2[] = { /* permuted choice table 2 */
+ 9, 18, 14, 17, 11, 24, 1, 5,
+ 22, 25, 3, 28, 15, 6, 21, 10,
+ 35, 38, 23, 19, 12, 4, 26, 8,
+ 43, 54, 16, 7, 27, 20, 13, 2,
+
+ 0, 0, 41, 52, 31, 37, 47, 55,
+ 0, 0, 30, 40, 51, 45, 33, 48,
+ 0, 0, 44, 49, 39, 56, 34, 53,
+ 0, 0, 46, 42, 50, 36, 29, 32,
};
-static struct ordering KeyTr1 = {
- 57,49,41,33,25,17, 9, 1,58,50,42,34,26,18,
- 10, 2,59,51,43,35,27,19,11, 3,60,52,44,36,
- 63,55,47,39,31,23,15, 7,62,54,46,38,30,22,
- 14, 6,61,53,45,37,29,21,13, 5,28,20,12, 4,
+static const unsigned char S[8][64] = { /* 48->32 bit substitution tables */
+ {
+ /* S[1] */
+ 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
+ 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
+ 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
+ 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13,
+ },
+ {
+ /* S[2] */
+ 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
+ 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
+ 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
+ 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9,
+ },
+ {
+ /* S[3] */
+ 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
+ 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
+ 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
+ 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12,
+ },
+ {
+ /* S[4] */
+ 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
+ 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
+ 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
+ 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14,
+ },
+ {
+ /* S[5] */
+ 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
+ 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
+ 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
+ 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3,
+ },
+ {
+ /* S[6] */
+ 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
+ 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
+ 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
+ 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13,
+ },
+ {
+ /* S[7] */
+ 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
+ 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
+ 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
+ 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12,
+ },
+ {
+ /* S[8] */
+ 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
+ 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
+ 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
+ 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11,
+ },
};
-static struct ordering KeyTr2 = {
- 14,17,11,24, 1, 5, 3,28,15, 6,21,10,
- 23,19,12, 4,26, 8,16, 7,27,20,13, 2,
- 41,52,31,37,47,55,30,40,51,45,33,48,
- 44,49,39,56,34,53,46,42,50,36,29,32,
+static const unsigned char P32Tr[] = { /* 32-bit permutation function */
+ 16, 7, 20, 21,
+ 29, 12, 28, 17,
+ 1, 15, 23, 26,
+ 5, 18, 31, 10,
+ 2, 8, 24, 14,
+ 32, 27, 3, 9,
+ 19, 13, 30, 6,
+ 22, 11, 4, 25,
};
-static struct ordering etr = {
- 32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9,
- 8, 9,10,11,12,13,12,13,14,15,16,17,
- 16,17,18,19,20,21,20,21,22,23,24,25,
- 24,25,26,27,28,29,28,29,30,31,32, 1,
-};
+static const unsigned char CIFP[] = { /* compressed/interleaved permutation */
+ 1, 2, 3, 4, 17, 18, 19, 20,
+ 5, 6, 7, 8, 21, 22, 23, 24,
+ 9, 10, 11, 12, 25, 26, 27, 28,
+ 13, 14, 15, 16, 29, 30, 31, 32,
-static struct ordering ptr = {
- 16, 7,20,21,29,12,28,17, 1,15,23,26, 5,18,31,10,
- 2, 8,24,14,32,27, 3, 9,19,13,30, 6,22,11, 4,25,
+ 33, 34, 35, 36, 49, 50, 51, 52,
+ 37, 38, 39, 40, 53, 54, 55, 56,
+ 41, 42, 43, 44, 57, 58, 59, 60,
+ 45, 46, 47, 48, 61, 62, 63, 64,
};
-
-static unsigned char s_boxes[8][64] = {
-{ 14, 4,13, 1, 2,15,11, 8, 3,10, 6,12, 5, 9, 0, 7,
- 0,15, 7, 4,14, 2,13, 1,10, 6,12,11, 9, 5, 3, 8,
- 4, 1,14, 8,13, 6, 2,11,15,12, 9, 7, 3,10, 5, 0,
- 15,12, 8, 2, 4, 9, 1, 7, 5,11, 3,14,10, 0, 6,13,
-},
-
-{ 15, 1, 8,14, 6,11, 3, 4, 9, 7, 2,13,12, 0, 5,10,
- 3,13, 4, 7,15, 2, 8,14,12, 0, 1,10, 6, 9,11, 5,
- 0,14, 7,11,10, 4,13, 1, 5, 8,12, 6, 9, 3, 2,15,
- 13, 8,10, 1, 3,15, 4, 2,11, 6, 7,12, 0, 5,14, 9,
-},
-
-{ 10, 0, 9,14, 6, 3,15, 5, 1,13,12, 7,11, 4, 2, 8,
- 13, 7, 0, 9, 3, 4, 6,10, 2, 8, 5,14,12,11,15, 1,
- 13, 6, 4, 9, 8,15, 3, 0,11, 1, 2,12, 5,10,14, 7,
- 1,10,13, 0, 6, 9, 8, 7, 4,15,14, 3,11, 5, 2,12,
-},
-
-{ 7,13,14, 3, 0, 6, 9,10, 1, 2, 8, 5,11,12, 4,15,
- 13, 8,11, 5, 6,15, 0, 3, 4, 7, 2,12, 1,10,14, 9,
- 10, 6, 9, 0,12,11, 7,13,15, 1, 3,14, 5, 2, 8, 4,
- 3,15, 0, 6,10, 1,13, 8, 9, 4, 5,11,12, 7, 2,14,
-},
-
-{ 2,12, 4, 1, 7,10,11, 6, 8, 5, 3,15,13, 0,14, 9,
- 14,11, 2,12, 4, 7,13, 1, 5, 0,15,10, 3, 9, 8, 6,
- 4, 2, 1,11,10,13, 7, 8,15, 9,12, 5, 6, 3, 0,14,
- 11, 8,12, 7, 1,14, 2,13, 6,15, 0, 9,10, 4, 5, 3,
-},
-
-{ 12, 1,10,15, 9, 2, 6, 8, 0,13, 3, 4,14, 7, 5,11,
- 10,15, 4, 2, 7,12, 9, 5, 6, 1,13,14, 0,11, 3, 8,
- 9,14,15, 5, 2, 8,12, 3, 7, 0, 4,10, 1,13,11, 6,
- 4, 3, 2,12, 9, 5,15,10,11,14, 1, 7, 6, 0, 8,13,
-},
-
-{ 4,11, 2,14,15, 0, 8,13, 3,12, 9, 7, 5,10, 6, 1,
- 13, 0,11, 7, 4, 9, 1,10,14, 3, 5,12, 2,15, 8, 6,
- 1, 4,11,13,12, 3, 7,14,10,15, 6, 8, 0, 5, 9, 2,
- 6,11,13, 8, 1, 4,10, 7, 9, 5, 0,15,14, 2, 3,12,
-},
-
-{ 13, 2, 8, 4, 6,15,11, 1,10, 9, 3,14, 5, 0,12, 7,
- 1,15,13, 8,10, 3, 7, 4,12, 5, 6,11, 0,14, 9, 2,
- 7,11, 4, 1, 9,12,14, 2, 0, 6,10,13,15, 3, 5, 8,
- 2, 1,14, 7, 4,10, 8,13,15,12, 9, 0, 3, 5, 6,11,
-},
+#endif
+
+static const unsigned char itoa64[] = /* 0..63 => ascii-64 */
+ "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+/* table that converts chars "./0-9A-Za-z"to integers 0-63. */
+static const unsigned char a64toi[256] = {
+#define A64TOI1(c) \
+ ((c) == '.' ? 0 : \
+ (c) == '/' ? 1 : \
+ ('0' <= (c) && (c) <= '9') ? (c) - '0' + 2 : \
+ ('A' <= (c) && (c) <= 'Z') ? (c) - 'A' + 12 : \
+ ('a' <= (c) && (c) <= 'z') ? (c) - 'a' + 38 : \
+ 0)
+#define A64TOI4(base) A64TOI1(base+0), A64TOI1(base+1), A64TOI1(base+2), A64TOI1(base+3)
+#define A64TOI16(base) A64TOI4(base+0), A64TOI4(base+4), A64TOI4(base+8), A64TOI4(base+12)
+#define A64TOI64(base) A64TOI16(base+0x00), A64TOI16(base+0x10), A64TOI16(base+0x20), A64TOI16(base+0x30)
+ A64TOI64(0x00), A64TOI64(0x40),
+ A64TOI64(0x00), A64TOI64(0x40),
};
-static int rots[] = {
- 1,1,2,2,2,2,2,2,1,2,2,2,2,2,2,1,
-};
+#if INIT_DES
+/* ===== Tables that are initialized at run time ==================== */
-static void transpose(struct block *data, struct ordering *t, int n)
-{
- struct block x;
+typedef struct {
+ /* Initial key schedule permutation */
+ C_block PC1ROT[64/CHUNKBITS][1<<CHUNKBITS];
+
+ /* Subsequent key schedule rotation permutations */
+ C_block PC2ROT[2][64/CHUNKBITS][1<<CHUNKBITS];
+
+ /* Initial permutation/expansion table */
+ C_block IE3264[32/CHUNKBITS][1<<CHUNKBITS];
+
+ /* Table that combines the S, P, and E operations. */
+ unsigned long SPE[2][8][64];
+
+ /* compressed/interleaved => final permutation table */
+ C_block CF6464[64/CHUNKBITS][1<<CHUNKBITS];
+
+ int ready;
+} des_tables_t;
+static des_tables_t des_tables[1];
+
+#define des_tables ((const des_tables_t *)des_tables)
+#define PC1ROT (des_tables->PC1ROT)
+#define PC2ROT (des_tables->PC2ROT)
+#define IE3264 (des_tables->IE3264)
+#define SPE (des_tables->SPE)
+#define CF6464 (des_tables->CF6464)
+
+STATIC void init_des(void);
+STATIC void init_perm(C_block perm[64/CHUNKBITS][1<<CHUNKBITS], unsigned char p[64], int chars_in, int chars_out);
+#endif
+
+static const C_block constdatablock = {{0}}; /* encryption constant */
+
+#define KS (data->KS)
+#define cryptresult (data->cryptresult)
+
+static void des_setkey_r(const unsigned char *key, struct crypt_data *data);
+static void des_cipher_r(const unsigned char *in, unsigned char *out, long salt, int num_iter, struct crypt_data *data);
- x = *data;
+#ifdef USE_NONREENTRANT_CRYPT
+static struct crypt_data default_crypt_data;
+#endif
- while (n-- > 0) {
- data->b_data[n] = x.b_data[t->o_data[n] - 1];
- }
+#ifdef USE_NONREENTRANT_CRYPT
+/*
+ * Return a pointer to static data consisting of the "setting"
+ * followed by an encryption produced by the "key" and "setting".
+ */
+char *
+crypt(const char *key, const char *setting)
+{
+ return crypt_r(key, setting, &default_crypt_data);
+}
+#endif
+
+/*
+ * Return a pointer to data consisting of the "setting" followed by an
+ * encryption produced by the "key" and "setting".
+ */
+char *
+crypt_r(const char *key, const char *setting, struct crypt_data *data)
+{
+ register char *encp;
+ register long i;
+ register int t;
+ long salt;
+ int num_iter, salt_size;
+ C_block keyblock, rsltblock;
+
+ for (i = 0; i < 8; i++) {
+ if ((t = 2*(unsigned char)(*key)) != 0)
+ key++;
+ keyblock.b[i] = t;
+ }
+ des_setkey_r(keyblock.b, data); /* also initializes "a64toi" */
+
+ encp = &cryptresult[0];
+ switch (*setting) {
+ case _PASSWORD_EFMT1:
+ /*
+ * Involve the rest of the password 8 characters at a time.
+ */
+ while (*key) {
+ des_cipher_r(keyblock.b, keyblock.b, 0L, 1, data);
+ for (i = 0; i < 8; i++) {
+ if ((t = 2*(unsigned char)(*key)) != 0)
+ key++;
+ keyblock.b[i] ^= t;
+ }
+ des_setkey_r(keyblock.b, data);
+ }
+
+ *encp++ = *setting++;
+
+ /* get iteration count */
+ num_iter = 0;
+ for (i = 4; --i >= 0; ) {
+ if ((t = (unsigned char)setting[i]) == '\0')
+ t = '.';
+ encp[i] = t;
+ num_iter = (num_iter<<6) | a64toi[t];
+ }
+ setting += 4;
+ encp += 4;
+ salt_size = 4;
+ break;
+ default:
+ num_iter = 25;
+ salt_size = 2;
+ }
+
+ salt = 0;
+ for (i = salt_size; --i >= 0; ) {
+ if ((t = (unsigned char)setting[i]) == '\0')
+ t = '.';
+ encp[i] = t;
+ salt = (salt<<6) | a64toi[t];
+ }
+ encp += salt_size;
+ des_cipher_r(constdatablock.b, rsltblock.b, salt, num_iter, data);
+
+ /*
+ * Encode the 64 cipher bits as 11 ascii characters.
+ */
+ i = ((long)((rsltblock.b[0]<<8) | rsltblock.b[1])<<8) | rsltblock.b[2];
+ encp[3] = itoa64[i&0x3f]; i >>= 6;
+ encp[2] = itoa64[i&0x3f]; i >>= 6;
+ encp[1] = itoa64[i&0x3f]; i >>= 6;
+ encp[0] = itoa64[i]; encp += 4;
+ i = ((long)((rsltblock.b[3]<<8) | rsltblock.b[4])<<8) | rsltblock.b[5];
+ encp[3] = itoa64[i&0x3f]; i >>= 6;
+ encp[2] = itoa64[i&0x3f]; i >>= 6;
+ encp[1] = itoa64[i&0x3f]; i >>= 6;
+ encp[0] = itoa64[i]; encp += 4;
+ i = ((long)((rsltblock.b[6])<<8) | rsltblock.b[7])<<2;
+ encp[2] = itoa64[i&0x3f]; i >>= 6;
+ encp[1] = itoa64[i&0x3f]; i >>= 6;
+ encp[0] = itoa64[i];
+
+ encp[3] = 0;
+
+ return (cryptresult);
+}
+
+/*
+ * Set up the key schedule from the key.
+ */
+static void
+des_setkey_r(const unsigned char *key, struct crypt_data *data)
+{
+ register DCL_BLOCK(K, K0, K1);
+ register const C_block *ptabp;
+ register int i;
+ C_block *ksp;
+
+ init_des();
+
+ PERM6464(K,K0,K1,key,PC1ROT[0]);
+ ksp = &KS[0];
+ STORE(K&~0x03030303L, K0&~0x03030303L, K1, *ksp);
+ for (i = 1; i < numberof(KS); i++) {
+ ksp++;
+ STORE(K,K0,K1,*ksp);
+ ptabp = PC2ROT[Rotates[i]-1][0];
+ PERM6464(K,K0,K1,ksp->b,ptabp);
+ STORE(K&~0x03030303L, K0&~0x03030303L, K1, *ksp);
+ }
}
-static void rotate(struct block *key)
+/*
+ * Encrypt (or decrypt if num_iter < 0) the 8 chars at "in" with abs(num_iter)
+ * iterations of DES, using the given 24-bit salt and the pre-computed key
+ * schedule, and store the resulting 8 chars at "out" (in == out is permitted).
+ *
+ * NOTE: the performance of this routine is critically dependent on your
+ * compiler and machine architecture.
+ */
+void
+des_cipher_r(const unsigned char *in, unsigned char *out, long salt, int num_iter, struct crypt_data *data)
{
- register unsigned char *p = key->b_data;
- register unsigned char *ep = &(key->b_data[55]);
- int data0 = key->b_data[0], data28 = key->b_data[28];
+ /* variables that we want in registers, most important first */
+#if defined(pdp11)
+ register int j;
+#endif
+ register unsigned long L0, L1, R0, R1, k;
+ register const C_block *kp;
+ register int ks_inc, loop_count;
+ C_block B;
+
+ L0 = salt;
+ TO_SIX_BIT(salt, L0); /* convert to 4*(6+2) format */
+
+#if defined(vax) || defined(pdp11)
+ salt = ~salt; /* "x &~ y" is faster than "x & y". */
+#define SALT (~salt)
+#else
+#define SALT salt
+#endif
+
+#if defined(MUST_ALIGN)
+ B.b[0] = in[0]; B.b[1] = in[1]; B.b[2] = in[2]; B.b[3] = in[3];
+ B.b[4] = in[4]; B.b[5] = in[5]; B.b[6] = in[6]; B.b[7] = in[7];
+ LOAD(L,L0,L1,B);
+#else
+ LOAD(L,L0,L1,*(C_block *)in);
+#endif
+ LOADREG(R,R0,R1,L,L0,L1);
+ L0 &= 0x55555555L;
+ L1 &= 0x55555555L;
+ L0 = (L0 << 1) | L1; /* L0 is the even-numbered input bits */
+ R0 &= 0xaaaaaaaaL;
+ R1 = (R1 >> 1) & 0x55555555L;
+ L1 = R0 | R1; /* L1 is the odd-numbered input bits */
+ STORE(L,L0,L1,B);
+ PERM3264(L,L0,L1,B.b, IE3264[0]); /* even bits */
+ PERM3264(R,R0,R1,B.b+4,IE3264[0]); /* odd bits */
+
+ if (num_iter >= 0)
+ { /* encryption */
+ kp = &KS[0];
+ ks_inc = +1;
+ }
+ else
+ { /* decryption */
+ num_iter = -num_iter;
+ kp = &KS[KS_SIZE-1];
+ ks_inc = -1;
+ }
+
+ while (--num_iter >= 0) {
+ loop_count = 8;
+ do {
+
+#define SPTAB(t, i) (*(const unsigned long *)((const unsigned char *)(t) + (i)*(sizeof(long)/4)))
+#if defined(gould)
+ /* use this if B.b[i] is evaluated just once ... */
+#define DOXOR(x,y,i) (x)^=SPTAB(SPE[0][(i)],B.b[(i)]); (y)^=SPTAB(SPE[1][(i)],B.b[(i)]);
+#else
+#if defined(pdp11)
+ /* use this if your "long" int indexing is slow */
+#define DOXOR(x,y,i) j=B.b[(i)]; (x)^=SPTAB(SPE[0][(i)],j); (y)^=SPTAB(SPE[1][(i)],j);
+#else
+ /* use this if "k" is allocated to a register ... */
+#define DOXOR(x,y,i) k=B.b[(i)]; (x)^=SPTAB(SPE[0][(i)],k); (y)^=SPTAB(SPE[1][(i)],k);
+#endif
+#endif
+
+#define CRUNCH(p0, p1, q0, q1) \
+ k = ((q0) ^ (q1)) & SALT; \
+ B.b32.i0 = k ^ (q0) ^ kp->b32.i0; \
+ B.b32.i1 = k ^ (q1) ^ kp->b32.i1; \
+ kp += ks_inc; \
+ \
+ DOXOR((p0), (p1), 0); \
+ DOXOR((p0), (p1), 1); \
+ DOXOR((p0), (p1), 2); \
+ DOXOR((p0), (p1), 3); \
+ DOXOR((p0), (p1), 4); \
+ DOXOR((p0), (p1), 5); \
+ DOXOR((p0), (p1), 6); \
+ DOXOR((p0), (p1), 7);
+
+ CRUNCH(L0, L1, R0, R1);
+ CRUNCH(R0, R1, L0, L1);
+ } while (--loop_count != 0);
+ kp -= (ks_inc*KS_SIZE);
+
+
+ /* swap L and R */
+ L0 ^= R0; L1 ^= R1;
+ R0 ^= L0; R1 ^= L1;
+ L0 ^= R0; L1 ^= R1;
+ }
+
+ /* store the encrypted (or decrypted) result */
+ L0 = ((L0 >> 3) & 0x0f0f0f0fL) | ((L1 << 1) & 0xf0f0f0f0L);
+ L1 = ((R0 >> 3) & 0x0f0f0f0fL) | ((R1 << 1) & 0xf0f0f0f0L);
+ STORE(L,L0,L1,B);
+ PERM6464(L,L0,L1,B.b, CF6464[0]);
+#if defined(MUST_ALIGN)
+ STORE(L,L0,L1,B);
+ out[0] = B.b[0]; out[1] = B.b[1]; out[2] = B.b[2]; out[3] = B.b[3];
+ out[4] = B.b[4]; out[5] = B.b[5]; out[6] = B.b[6]; out[7] = B.b[7];
+#else
+ STORE(L,L0,L1,*(C_block *)out);
+#endif
+}
- while (p++ < ep) *(p-1) = *p;
- key->b_data[27] = (char) data0;
- key->b_data[55] = (char) data28;
+#undef des_tables
+#undef KS
+#undef cryptresult
+
+#if INIT_DES
+/*
+ * Initialize various tables. This need only be done once. It could even be
+ * done at compile time, if the compiler were capable of that sort of thing.
+ */
+STATIC void
+init_des(void)
+{
+ register int i, j;
+ register long k;
+ register int tableno;
+ unsigned char perm[64], tmp32[32];
+
+ if (des_tables->ready) return;
+
+ /*
+ * PC1ROT - bit reverse, then PC1, then Rotate, then PC2.
+ */
+ for (i = 0; i < 64; i++)
+ perm[i] = 0;
+ for (i = 0; i < 64; i++) {
+ if ((k = PC2[i]) == 0)
+ continue;
+ k += Rotates[0]-1;
+ if ((k%28) < Rotates[0]) k -= 28;
+ k = PC1[k];
+ if (k > 0) {
+ k--;
+ k = (k|07) - (k&07);
+ k++;
+ }
+ perm[i] = (unsigned char)k;
+ }
+#ifdef DEBUG
+ prtab("pc1tab", perm, 8);
+#endif
+ init_perm(PC1ROT, perm, 8, 8);
+
+ /*
+ * PC2ROT - PC2 inverse, then Rotate (once or twice), then PC2.
+ */
+ for (j = 0; j < 2; j++) {
+ unsigned char pc2inv[64];
+ for (i = 0; i < 64; i++)
+ perm[i] = pc2inv[i] = 0;
+ for (i = 0; i < 64; i++) {
+ if ((k = PC2[i]) == 0)
+ continue;
+ pc2inv[k-1] = i+1;
+ }
+ for (i = 0; i < 64; i++) {
+ if ((k = PC2[i]) == 0)
+ continue;
+ k += j;
+ if ((k%28) <= j) k -= 28;
+ perm[i] = pc2inv[k];
+ }
+#ifdef DEBUG
+ prtab("pc2tab", perm, 8);
+#endif
+ init_perm(PC2ROT[j], perm, 8, 8);
+ }
+
+ /*
+ * Bit reverse, then initial permutation, then expansion.
+ */
+ for (i = 0; i < 8; i++) {
+ for (j = 0; j < 8; j++) {
+ k = (j < 2)? 0: IP[ExpandTr[i*6+j-2]-1];
+ if (k > 32)
+ k -= 32;
+ else if (k > 0)
+ k--;
+ if (k > 0) {
+ k--;
+ k = (k|07) - (k&07);
+ k++;
+ }
+ perm[i*8+j] = (unsigned char)k;
+ }
+ }
+#ifdef DEBUG
+ prtab("ietab", perm, 8);
+#endif
+ init_perm(IE3264, perm, 4, 8);
+
+ /*
+ * Compression, then final permutation, then bit reverse.
+ */
+ for (i = 0; i < 64; i++) {
+ k = IP[CIFP[i]-1];
+ if (k > 0) {
+ k--;
+ k = (k|07) - (k&07);
+ k++;
+ }
+ perm[k-1] = i+1;
+ }
+#ifdef DEBUG
+ prtab("cftab", perm, 8);
+#endif
+ init_perm(CF6464, perm, 8, 8);
+
+ /*
+ * SPE table
+ */
+ for (i = 0; i < 48; i++)
+ perm[i] = P32Tr[ExpandTr[i]-1];
+ for (tableno = 0; tableno < 8; tableno++) {
+ for (j = 0; j < 64; j++) {
+ k = (((j >> 0) &01) << 5)|
+ (((j >> 1) &01) << 3)|
+ (((j >> 2) &01) << 2)|
+ (((j >> 3) &01) << 1)|
+ (((j >> 4) &01) << 0)|
+ (((j >> 5) &01) << 4);
+ k = S[tableno][k];
+ k = (((k >> 3)&01) << 0)|
+ (((k >> 2)&01) << 1)|
+ (((k >> 1)&01) << 2)|
+ (((k >> 0)&01) << 3);
+ for (i = 0; i < 32; i++)
+ tmp32[i] = 0;
+ for (i = 0; i < 4; i++)
+ tmp32[4 * tableno + i] = (unsigned char)(k >> i) & 01;
+ k = 0;
+ for (i = 24; --i >= 0; )
+ k = (k<<1) | tmp32[perm[i]-1];
+ TO_SIX_BIT(SPE[0][tableno][j], k);
+ k = 0;
+ for (i = 24; --i >= 0; )
+ k = (k<<1) | tmp32[perm[i+24]-1];
+ TO_SIX_BIT(SPE[1][tableno][j], k);
+ }
+ }
+
+ des_tables->ready = 1;
}
-static struct ordering *EP = &etr;
+/*
+ * Initialize "perm" to represent transformation "p", which rearranges
+ * (perhaps with expansion and/or contraction) one packed array of bits
+ * (of size "chars_in" characters) into another array (of size "chars_out"
+ * characters).
+ *
+ * "perm" must be all-zeroes on entry to this routine.
+ */
+STATIC void
+init_perm(C_block perm[64/CHUNKBITS][1<<CHUNKBITS],
+ unsigned char p[64], int chars_in, int chars_out)
+{
+ register int i, j, k, l;
+
+ for (k = 0; k < chars_out*8; k++) { /* each output bit position */
+ l = p[k] - 1; /* where this bit comes from */
+ if (l < 0)
+ continue; /* output bit is always 0 */
+ i = l>>LGCHUNKBITS; /* which chunk this bit comes from */
+ l = 1<<(l&(CHUNKBITS-1)); /* mask for this bit */
+ for (j = 0; j < (1<<CHUNKBITS); j++) { /* each chunk value */
+ if ((j & l) != 0)
+ perm[i][j].b[k>>3] |= 1<<(k&07);
+ }
+ }
+}
+#endif
+
+/*
+ * "setkey" routine (for backwards compatibility)
+ */
+#ifdef USE_NONREENTRANT_CRYPT
+void
+setkey(const char *key)
+{
+ setkey_r(key, &default_crypt_data);
+}
+#endif
-static void f(int i, struct block *key, struct block *a, struct block *x)
+void
+setkey_r(const char *key, struct crypt_data *data)
{
- struct block e, ikey, y;
- int k;
- register unsigned char *p, *q, *r;
-
- e = *a;
- transpose(&e, EP, 48);
- for (k = rots[i]; k; k--) rotate(key);
- ikey = *key;
- transpose(&ikey, &KeyTr2, 48);
- p = &(y.b_data[48]);
- q = &(e.b_data[48]);
- r = &(ikey.b_data[48]);
- while (p > y.b_data) {
- *--p = *--q ^ *--r;
- }
- q = x->b_data;
- for (k = 0; k < 8; k++) {
- register int xb, r;
-
- r = *p++ << 5;
- r += *p++ << 3;
- r += *p++ << 2;
- r += *p++ << 1;
- r += *p++;
- r += *p++ << 4;
-
- xb = s_boxes[k][r];
-
- *q++ = (char) (xb >> 3) & 1;
- *q++ = (char) (xb>>2) & 1;
- *q++ = (char) (xb>>1) & 1;
- *q++ = (char) (xb & 1);
- }
- transpose(x, &ptr, 32);
+ register int i, j, k;
+ C_block keyblock;
+
+ for (i = 0; i < 8; i++) {
+ k = 0;
+ for (j = 0; j < 8; j++) {
+ k <<= 1;
+ k |= (unsigned char)*key++;
+ }
+ keyblock.b[i] = k;
+ }
+ des_setkey_r(keyblock.b, data);
}
-void definekey(char *k)
+/*
+ * "encrypt" routine (for backwards compatibility)
+ */
+#ifdef USE_NONREENTRANT_CRYPT
+void
+encrypt(char *block, int flag)
{
+ encrypt_r(block, flag, &default_crypt_data);
+}
+#endif
- key = *((struct block *) k);
- transpose(&key, &KeyTr1, 56);
+void
+encrypt_r(char *block, int flag, struct crypt_data *data)
+{
+ register int i, j, k;
+ C_block cblock;
+
+ for (i = 0; i < 8; i++) {
+ k = 0;
+ for (j = 0; j < 8; j++) {
+ k <<= 1;
+ k |= (unsigned char)*block++;
+ }
+ cblock.b[i] = k;
+ }
+ des_cipher_r(cblock.b, cblock.b, 0L, (flag ? -1: 1), data);
+ for (i = 7; i >= 0; i--) {
+ k = cblock.b[i];
+ for (j = 7; j >= 0; j--) {
+ *--block = k&01;
+ k >>= 1;
+ }
+ }
}
-void encrypt(char *blck, int edflag)
+#ifdef DEBUG
+STATIC void
+prtab(const char *s, const unsigned char *t, int num_rows)
{
- register struct block *p = (struct block *) blck;
- register int i;
-
- transpose(p, &InitialTr, 64);
- for (i = 15; i>= 0; i--) {
- int j = edflag ? i : 15 - i;
- register int k;
- struct block b, x;
-
- b = *p;
- for (k = 31; k >= 0; k--) {
- p->b_data[k] = b.b_data[k + 32];
- }
- f(j, &key, p, &x);
- for (k = 31; k >= 0; k--) {
- p->b_data[k+32] = b.b_data[k] ^ x.b_data[k];
- }
- }
- transpose(p, &swap, 64);
- transpose(p, &FinalTr, 64);
+ register int i, j;
+
+ (void)printf("%s:\n", s);
+ for (i = 0; i < num_rows; i++) {
+ for (j = 0; j < 8; j++) {
+ (void)printf("%3d", t[i*8+j]);
+ }
+ (void)printf("\n");
+ }
+ (void)printf("\n");
}
+#endif
-char *crypt(char *pw, char *salt)
+#ifdef DUMP
+void
+dump_block(const C_block *block)
{
+ int i;
+ printf("{{");
+ for (i = 0; i < numberof(block->b); ++i) {
+ printf("%3d,", block->b[i]);
+ }
+ printf("}},\n");
+}
- char pwb[66];
- static char result[16];
- register char *p = pwb;
- struct ordering new_etr;
- register int i;
-
- while (*pw && p < &pwb[64]) {
- register int j = 7;
-
- while (j--) {
- *p++ = (*pw >> j) & 01;
- }
- pw++;
- *p++ = 0;
- }
- while (p < &pwb[64]) *p++ = 0;
-
- definekey(p = pwb);
-
- while (p < &pwb[66]) *p++ = 0;
-
- new_etr = etr;
- EP = &new_etr;
- for (i = 0; i < 2; i++) {
- register char c = *salt++;
- register int j;
-
- result[i] = c;
- if ( c > 'Z') c -= 6 + 7 + '.'; /* c was a lower case letter */
- else if ( c > '9') c -= 7 + '.';/* c was upper case letter */
- else c -= '.'; /* c was digit, '.' or '/'. */
- /* now, 0 <= c <= 63 */
- for (j = 0; j < 6; j++) {
- if ((c >> j) & 01) {
- int t = 6*i + j;
- int temp = new_etr.o_data[t];
- new_etr.o_data[t] = new_etr.o_data[t+24];
- new_etr.o_data[t+24] = (char) temp;
- }
- }
- }
-
- if (result[1] == 0) result[1] = result[0];
-
- for (i = 0; i < 25; i++) encrypt(pwb,0);
- EP = &etr;
-
- p = pwb;
- pw = result+2;
- while (p < &pwb[66]) {
- register int c = 0;
- register int j = 6;
-
- while (j--) {
- c <<= 1;
- c |= *p++;
- }
- c += '.'; /* becomes >= '.' */
- if (c > '9') c += 7; /* not in [./0-9], becomes upper */
- if (c > 'Z') c += 6; /* not in [A-Z], becomes lower */
- *pw++ = (char) c;
- }
- *pw = 0;
- return result;
+int
+main(void)
+{
+ int i, j, k;
+ init_des();
+
+ printf("#ifndef HAVE_DES_TABLES\n\n");
+ printf("/* Initial key schedule permutation */\n");
+ printf("static const C_block PC1ROT[64/CHUNKBITS][1<<CHUNKBITS] = {\n");
+ for (i = 0; i < numberof(PC1ROT); ++i) {
+ printf("\t{\n");
+ for (j = 0; j < numberof(PC1ROT[0]); ++j) {
+ printf("\t\t");
+ dump_block(&PC1ROT[i][j]);
+ }
+ printf("\t},\n");
+ }
+ printf("};\n\n");
+
+ printf("/* Subsequent key schedule rotation permutations */\n");
+ printf("static const C_block PC2ROT[2][64/CHUNKBITS][1<<CHUNKBITS] = {\n");
+ for (i = 0; i < numberof(PC2ROT); ++i) {
+ printf("\t{\n");
+ for (j = 0; j < numberof(PC2ROT[0]); ++j) {
+ printf("\t\t{\n");
+ for (k = 0; k < numberof(PC2ROT[0][0]); ++k) {
+ printf("\t\t\t");
+ dump_block(&PC2ROT[i][j][k]);
+ }
+ printf("\t\t},\n");
+ }
+ printf("\t},\n");
+ }
+ printf("};\n\n");
+
+ printf("/* Initial permutation/expansion table */\n");
+ printf("static const C_block IE3264[32/CHUNKBITS][1<<CHUNKBITS] = {\n");
+ for (i = 0; i < numberof(IE3264); ++i) {
+ printf("\t{\n");
+ for (j = 0; j < numberof(IE3264[0]); ++j) {
+ printf("\t\t");
+ dump_block(&IE3264[i][j]);
+ }
+ printf("\t},\n");
+ }
+ printf("};\n\n");
+
+ printf("/* Table that combines the S, P, and E operations. */\n");
+ printf("static const unsigned long SPE[2][8][64] = {\n");
+ for (i = 0; i < numberof(SPE); ++i) {
+ printf("\t{\n");
+ for (j = 0; j < numberof(SPE[0]); ++j) {
+ int r = 0;
+ printf("\t\t{");
+ for (k = 0; k < numberof(SPE[0][0]); ++k) {
+ if (r == 0) printf("\n\t\t\t");
+ printf("%#10lx,", SPE[i][j][k]);
+ if (++r == 4) r = 0;
+ }
+ printf("\n\t\t},\n");
+ }
+ printf("\t},\n");
+ }
+ printf("};\n\n");
+
+ printf("/* compressed/interleaved => final permutation table */\n");
+ printf("static const C_block CF6464[64/CHUNKBITS][1<<CHUNKBITS] = {\n");
+ for (i = 0; i < numberof(CF6464); ++i) {
+ printf("\t{\n");
+ for (j = 0; j < numberof(CF6464[0]); ++j) {
+ printf("\t\t");
+ dump_block(&CF6464[i][j]);
+ }
+ printf("\t},\n");
+ }
+ printf("};\n\n");
+ printf("#define HAVE_DES_TABLES 1\n""#endif\n");
+
+ return 0;
}
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-21 23:16:32 +0000