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- #define BIG_ENDIAN /* mc680x0 family */
-
- /*
- * This program is copyright (c) Alec Muffett 1991 except for certain
- * portions of code ("crack-fcrypt.c") copyright (c) Robert Baldwin, Icarus
- * Sparry and Alec Muffett. The author(s) disclaims all responsibility or
- * liability with respect to it's usage or its effect upon hardware or
- * computer systems. This software is in freely redistributable PROVIDED
- * that this notice remains intact.
- */
-
- /*
- * Misc defs for the fast password transform optimisations.
- */
-
- #ifndef LOGIN
- #include "crack.h" /* contains switches - AEM */
- #endif
-
- /*
- * Rename the types for greater convenience ? - This is from original code.
- */
- #define reg register
- #define uns unsigned
- #define unsb uns char
- #define unsl uns long
-
- /*
- * Types for the different ways to represent DES bit patterns. Bits are
- * always right justified within fields. Bits which have lower indices in
- * the NBS spec are stored in the vax bits with less significance (e.g., Bit
- * 1 of NBS spec is stored in the bit with weight 2 ** 0 to the Vax.
- */
-
- #define obpb1 unsb /* One bit per byte. */
- #define sbpb6 unsb /* Six bits per byte, 6 held. */
- #define sbpb6R unsb /* Six bits per byte Reversed order, 6 held. */
- #define sbpb24 unsl /* Six bits per byte, 24 held. */
- #define ebpb24 unsl /* Eight bits per bit, 24 held. */
- #define fbpb4 unsb /* Four bits per byte, 4 held. */
- #define fbpb4R unsb /* Four bits per byte Reversed order, 4 held. */
-
- /*
- * The operation (6 * x) is often better optimised as this (for really
- * braindead compilers) - AEM
- */
-
- #ifdef BRAINDEAD6
- #define SIX_TIMES(exprn) (((exprn) << 2) + ((exprn) << 1))
- #else
- #define SIX_TIMES(exprn) (6 * (exprn))
- #endif /* BRAINDEAD6 */
-
- /*
- * Data segment gathered into one place - AEM
- */
-
- /* Try to keep this stuff long aligned - AEM */
- static char iobuf[16];
-
- static obpb1 crypt_block[72]; /* 72 is next multiple of 8 bytes after 66 */
- static sbpb24 KS[32];
- static sbpb24 S0H[64], S1H[64], S2H[64], S3H[64];
- static sbpb24 S4H[64], S5H[64], S6H[64], S7H[64];
- static sbpb24 S0L[64], S1L[64], S2L[64], S3L[64];
- static sbpb24 S4L[64], S5L[64], S6L[64], S7L[64];
- static sbpb24 out96[4];
-
- /*
- * These used to be rather slow and frequently used functions - AEM
- */
-
- #define TF_TO_SIXBIT(tf) \
- (sbpb24)((tf & 077L) | \
- ((tf & 07700L) << 2) | \
- ((tf & 0770000L) << 4) | \
- ((tf & 077000000L) << 6))
-
- #define SIXBIT_TO_TF(sb) \
- (ebpb24)((sb & 0x3fL) | \
- ((sb & 0x3f00L) >> 2) | \
- ((sb & 0x3f0000L) >> 4) | \
- ((sb & 0x3f000000L) >> 6))
- /*
- * Start of the real thing
- */
-
- void
- fsetkey ()
- {
- /*
- * This used to be utterly horrendous. It still is, but it's much, much,
- * smaller... AEM.
- */
- static unsb KeyToKS[] =
- {
- 9, 50, 33, 59, 48, 16, 32, 56, 1, 8, 18, 41, 2, 34, 25, 24,
- 43, 57, 58, 0, 35, 26, 17, 40, 21, 27, 38, 53, 36, 3, 46, 29,
- 4, 52, 22, 28, 60, 20, 37, 62, 14, 19, 44, 13, 12, 61, 54, 30,
- 1, 42, 25, 51, 40, 8, 24, 48, 58, 0, 10, 33, 59, 26, 17, 16,
- 35, 49, 50, 57, 56, 18, 9, 32, 13, 19, 30, 45, 28, 62, 38, 21,
- 27, 44, 14, 20, 52, 12, 29, 54, 6, 11, 36, 5, 4, 53, 46, 22,
- 50, 26, 9, 35, 24, 57, 8, 32, 42, 49, 59, 17, 43, 10, 1, 0,
- 48, 33, 34, 41, 40, 2, 58, 16, 60, 3, 14, 29, 12, 46, 22, 5,
- 11, 28, 61, 4, 36, 27, 13, 38, 53, 62, 20, 52, 19, 37, 30, 6,
- 34, 10, 58, 48, 8, 41, 57, 16, 26, 33, 43, 1, 56, 59, 50, 49,
- 32, 17, 18, 25, 24, 51, 42, 0, 44, 54, 61, 13, 27, 30, 6, 52,
- 62, 12, 45, 19, 20, 11, 60, 22, 37, 46, 4, 36, 3, 21, 14, 53,
- 18, 59, 42, 32, 57, 25, 41, 0, 10, 17, 56, 50, 40, 43, 34, 33,
- 16, 1, 2, 9, 8, 35, 26, 49, 28, 38, 45, 60, 11, 14, 53, 36,
- 46, 27, 29, 3, 4, 62, 44, 6, 21, 30, 19, 20, 54, 5, 61, 37,
- 2, 43, 26, 16, 41, 9, 25, 49, 59, 1, 40, 34, 24, 56, 18, 17,
- 0, 50, 51, 58, 57, 48, 10, 33, 12, 22, 29, 44, 62, 61, 37, 20,
- 30, 11, 13, 54, 19, 46, 28, 53, 5, 14, 3, 4, 38, 52, 45, 21,
- 51, 56, 10, 0, 25, 58, 9, 33, 43, 50, 24, 18, 8, 40, 2, 1,
- 49, 34, 35, 42, 41, 32, 59, 17, 27, 6, 13, 28, 46, 45, 21, 4,
- 14, 62, 60, 38, 3, 30, 12, 37, 52, 61, 54, 19, 22, 36, 29, 5,
- 35, 40, 59, 49, 9, 42, 58, 17, 56, 34, 8, 2, 57, 24, 51, 50,
- 33, 18, 48, 26, 25, 16, 43, 1, 11, 53, 60, 12, 30, 29, 5, 19,
- 61, 46, 44, 22, 54, 14, 27, 21, 36, 45, 38, 3, 6, 20, 13, 52,
- 56, 32, 51, 41, 1, 34, 50, 9, 48, 26, 0, 59, 49, 16, 43, 42,
- 25, 10, 40, 18, 17, 8, 35, 58, 3, 45, 52, 4, 22, 21, 60, 11,
- 53, 38, 36, 14, 46, 6, 19, 13, 28, 37, 30, 62, 61, 12, 5, 44,
- 40, 16, 35, 25, 50, 18, 34, 58, 32, 10, 49, 43, 33, 0, 56, 26,
- 9, 59, 24, 2, 1, 57, 48, 42, 54, 29, 36, 19, 6, 5, 44, 62,
- 37, 22, 20, 61, 30, 53, 3, 60, 12, 21, 14, 46, 45, 27, 52, 28,
- 24, 0, 48, 9, 34, 2, 18, 42, 16, 59, 33, 56, 17, 49, 40, 10,
- 58, 43, 8, 51, 50, 41, 32, 26, 38, 13, 20, 3, 53, 52, 28, 46,
- 21, 6, 4, 45, 14, 37, 54, 44, 27, 5, 61, 30, 29, 11, 36, 12,
- 8, 49, 32, 58, 18, 51, 2, 26, 0, 43, 17, 40, 1, 33, 24, 59,
- 42, 56, 57, 35, 34, 25, 16, 10, 22, 60, 4, 54, 37, 36, 12, 30,
- 5, 53, 19, 29, 61, 21, 38, 28, 11, 52, 45, 14, 13, 62, 20, 27,
- 57, 33, 16, 42, 2, 35, 51, 10, 49, 56, 1, 24, 50, 17, 8, 43,
- 26, 40, 41, 48, 18, 9, 0, 59, 6, 44, 19, 38, 21, 20, 27, 14,
- 52, 37, 3, 13, 45, 5, 22, 12, 62, 36, 29, 61, 60, 46, 4, 11,
- 41, 17, 0, 26, 51, 48, 35, 59, 33, 40, 50, 8, 34, 1, 57, 56,
- 10, 24, 25, 32, 2, 58, 49, 43, 53, 28, 3, 22, 5, 4, 11, 61,
- 36, 21, 54, 60, 29, 52, 6, 27, 46, 20, 13, 45, 44, 30, 19, 62,
- 25, 1, 49, 10, 35, 32, 48, 43, 17, 24, 34, 57, 18, 50, 41, 40,
- 59, 8, 9, 16, 51, 42, 33, 56, 37, 12, 54, 6, 52, 19, 62, 45,
- 20, 5, 38, 44, 13, 36, 53, 11, 30, 4, 60, 29, 28, 14, 3, 46,
- 17, 58, 41, 2, 56, 24, 40, 35, 9, 16, 26, 49, 10, 42, 33, 32,
- 51, 0, 1, 8, 43, 34, 25, 48, 29, 4, 46, 61, 44, 11, 54, 37,
- 12, 60, 30, 36, 5, 28, 45, 3, 22, 27, 52, 21, 20, 6, 62, 38
- };
-
- reg int i;
- reg int j;
- reg int r;
- reg unsb *k;
-
- k = KeyToKS;
-
- for (i = 0; i < 32; i++) /* loops cache better ? - AEM */
- {
- r = 0;
- for (j = 0; j < 24; j++)
- {
- r |= crypt_block[*(k++)] << j;
- }
- KS[i] = TF_TO_SIXBIT (r);
- }
- }
-
- void
- XForm (saltvalue)
- sbpb24 saltvalue;
- {
- union
- {
- sbpb24 b[2];
- sbpb6 c[8];
- } sdata;
-
- /*
- * Icarus Sparry, Bath - mod AEM
- */
-
- #ifdef BIG_ENDIAN
- #define STEP --
- #define START &sdata.c[7]
- #define Dl sdata.b[1]
- #define Dh sdata.b[0]
- #else /* LITTLE_ENDIAN */
- #define STEP ++
- #define START &sdata.c[0]
- #define Dl sdata.b[0]
- #define Dh sdata.b[1]
- #endif
-
- /*
- * Thanks to Matt Bishop for this idea... AEM.
- */
-
- #ifndef FDES_4BYTE
- #define SIZEFIX 0
- #define INDIRECT(a,b) (a)[b]
- #else
- #define SIZEFIX 2 /* "n" where 2^n == sizeof(sbpb24) */
- #define INDIRECT(a,b) (*((sbpb24 *)(((unsigned char *) a) + (b))))
- #endif
-
- reg sbpb24 Rl;
- reg sbpb24 Rh;
- reg sbpb24 Ll;
- reg sbpb24 Lh;
- reg sbpb6 *dp;
-
- int loop;
- reg sbpb24 k;
- sbpb24 *kp;
- sbpb24 *kend;
- #ifdef FDES_8BYTE
- reg sbpb24 tmpi;
- #endif /* FDES_8BYTE */
-
- Ll = Lh = Rl = Rh = 0;
-
- kend = &KS[32];
-
- for (loop = 25; loop-- > 0; /* nothing */ )
- {
- for (kp = KS; kp < kend; /* nothing */ )
- {
- /*
- * Oddly enough, direct addressing of dp slows things down, as
- * well as knackering portability - AEM
- */
-
- k = (Rl ^ Rh) & saltvalue;
- #ifndef FDES_8BYTE
- Dl = (k ^ Rl ^ *kp++) << SIZEFIX;
- Dh = (k ^ Rh ^ *kp++) << SIZEFIX;
- #else
- /* hack to make things work better - matthew kaufman */
- /* I haven't tried any of this - I don't have a cray... AEM */
- tmpi = (k ^ Rl ^ *kp++);
- sdata.c[3] = (tmpi >> 24) & 0x00ff;
- sdata.c[2] = (tmpi >> 16) & 0x00ff;
- sdata.c[1] = (tmpi >> 8) & 0x00ff;
- sdata.c[0] = (tmpi) & 0x00ff;
- tmpi = (k ^ Rh ^ *kp++);
- sdata.c[7] = (tmpi >> 24) & 0x00ff;
- sdata.c[6] = (tmpi >> 16) & 0x00ff;
- sdata.c[5] = (tmpi >> 8) & 0x00ff;
- sdata.c[4] = (tmpi) & 0x00ff;
- #endif /* FDES_8BYTE */
-
- dp = START;
- Lh ^= INDIRECT (S0H, *dp);
- Ll ^= INDIRECT (S0L, *dp STEP);
- Lh ^= INDIRECT (S1H, *dp);
- Ll ^= INDIRECT (S1L, *dp STEP);
- Lh ^= INDIRECT (S2H, *dp);
- Ll ^= INDIRECT (S2L, *dp STEP);
- Lh ^= INDIRECT (S3H, *dp);
- Ll ^= INDIRECT (S3L, *dp STEP);
- Lh ^= INDIRECT (S4H, *dp);
- Ll ^= INDIRECT (S4L, *dp STEP);
- Lh ^= INDIRECT (S5H, *dp);
- Ll ^= INDIRECT (S5L, *dp STEP);
- Lh ^= INDIRECT (S6H, *dp);
- Ll ^= INDIRECT (S6L, *dp STEP);
- Lh ^= INDIRECT (S7H, *dp);
- Ll ^= INDIRECT (S7L, *dp STEP);
-
- k = (Ll ^ Lh) & saltvalue;
- #ifndef FDES_8BYTE
- Dl = (k ^ Ll ^ *kp++) << SIZEFIX;
- Dh = (k ^ Lh ^ *kp++) << SIZEFIX;
- #else
- tmpi = (k ^ Ll ^ *kp++);
- sdata.c[3] = (tmpi >> 24) & 0x00ff;
- sdata.c[2] = (tmpi >> 16) & 0x00ff;
- sdata.c[1] = (tmpi >> 8) & 0x00ff;
- sdata.c[0] = (tmpi) & 0x00ff;
- tmpi = (k ^ Lh ^ *kp++);
- sdata.c[7] = (tmpi >> 24) & 0x00ff;
- sdata.c[6] = (tmpi >> 16) & 0x00ff;
- sdata.c[5] = (tmpi >> 8) & 0x00ff;
- sdata.c[4] = (tmpi) & 0x00ff;
- #endif /* FDES_8BYTE */
-
- dp = START;
- Rh ^= INDIRECT (S0H, *dp);
- Rl ^= INDIRECT (S0L, *dp STEP);
- Rh ^= INDIRECT (S1H, *dp);
- Rl ^= INDIRECT (S1L, *dp STEP);
- Rh ^= INDIRECT (S2H, *dp);
- Rl ^= INDIRECT (S2L, *dp STEP);
- Rh ^= INDIRECT (S3H, *dp);
- Rl ^= INDIRECT (S3L, *dp STEP);
- Rh ^= INDIRECT (S4H, *dp);
- Rl ^= INDIRECT (S4L, *dp STEP);
- Rh ^= INDIRECT (S5H, *dp);
- Rl ^= INDIRECT (S5L, *dp STEP);
- Rh ^= INDIRECT (S6H, *dp);
- Rl ^= INDIRECT (S6L, *dp STEP);
- Rh ^= INDIRECT (S7H, *dp);
- Rl ^= INDIRECT (S7L, *dp STEP);
- }
-
- Ll ^= Rl;
- Lh ^= Rh;
- Rl ^= Ll;
- Rh ^= Lh;
- Ll ^= Rl;
- Lh ^= Rh;
- }
-
- /*
- * for reasons that I cannot explain, if I insert the contents of the
- * UnXForm function right HERE, making the tweaks as necessary to avoid
- * using out96[] to pass data, I LOSE 30% of my speed. I don't know why.
- * Hence, I continue to use out96[]...
- */
- {
- reg sbpb24 *qp;
- qp = out96;
- *qp++ = Ll;
- *qp++ = Lh;
- *qp++ = Rl;
- *qp++ = Rh;
- }
- }
-
- void
- UnXForm ()
- {
- reg obpb1 *ptr;
- reg sbpb24 Rl;
- reg sbpb24 Rh;
- reg sbpb24 Ll;
- reg sbpb24 Lh;
-
- Ll = SIXBIT_TO_TF (out96[0]);
- Lh = SIXBIT_TO_TF (out96[1]);
- Rl = SIXBIT_TO_TF (out96[2]);
- Rh = SIXBIT_TO_TF (out96[3]);
- ptr = crypt_block;
-
- *(ptr++) = Rl & 0x000400L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000400L ? 0x01 : 0;
- *(ptr++) = Rl & 0x400000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x400000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000400L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000400L ? 0x01 : 0;
- *(ptr++) = Rh & 0x400000L ? 0x01 : 0;
- *(ptr++) = Lh & 0x400000L ? 0x01 : 0;
- *(ptr++) = Rl & 0x000200L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000200L ? 0x01 : 0;
- *(ptr++) = Rl & 0x200000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x200000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000200L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000200L ? 0x01 : 0;
- *(ptr++) = Rh & 0x200000L ? 0x01 : 0;
- *(ptr++) = Lh & 0x200000L ? 0x01 : 0;
- *(ptr++) = Rl & 0x000100L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000100L ? 0x01 : 0;
- *(ptr++) = Rl & 0x100000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x100000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000100L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000100L ? 0x01 : 0;
- *(ptr++) = Rh & 0x100000L ? 0x01 : 0;
- *(ptr++) = Lh & 0x100000L ? 0x01 : 0;
- *(ptr++) = Rl & 0x000080L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000080L ? 0x01 : 0;
- *(ptr++) = Rl & 0x080000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x080000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000080L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000080L ? 0x01 : 0;
- *(ptr++) = Rh & 0x080000L ? 0x01 : 0;
- *(ptr++) = Lh & 0x080000L ? 0x01 : 0;
- *(ptr++) = Rl & 0x000010L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000010L ? 0x01 : 0;
- *(ptr++) = Rl & 0x010000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x010000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000010L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000010L ? 0x01 : 0;
- *(ptr++) = Rh & 0x010000L ? 0x01 : 0;
- *(ptr++) = Lh & 0x010000L ? 0x01 : 0;
- *(ptr++) = Rl & 0x000008L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000008L ? 0x01 : 0;
- *(ptr++) = Rl & 0x008000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x008000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000008L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000008L ? 0x01 : 0;
- *(ptr++) = Rh & 0x008000L ? 0x01 : 0;
- *(ptr++) = Lh & 0x008000L ? 0x01 : 0;
- *(ptr++) = Rl & 0x000004L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000004L ? 0x01 : 0;
- *(ptr++) = Rl & 0x004000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x004000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000004L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000004L ? 0x01 : 0;
- *(ptr++) = Rh & 0x004000L ? 0x01 : 0;
- *(ptr++) = Lh & 0x004000L ? 0x01 : 0;
- *(ptr++) = Rl & 0x000002L ? 0x01 : 0;
- *(ptr++) = Ll & 0x000002L ? 0x01 : 0;
- *(ptr++) = Rl & 0x002000L ? 0x01 : 0;
- *(ptr++) = Ll & 0x002000L ? 0x01 : 0;
- *(ptr++) = Rh & 0x000002L ? 0x01 : 0;
- *(ptr++) = Lh & 0x000002L ? 0x01 : 0;
- *(ptr++) = Rh & 0x002000L ? 0x01 : 0;
- *ptr = Lh & 0x002000L ? 0x01 : 0;
- }
-
- #ifdef LOGIN
- static int _fcrypt_initialised = 0;
- #endif
-
- char *
- fcrypt (pw, salt)
- char *pw;
- char *salt;
- {
- /* Table lookups for salts reduce fcrypt() overhead dramatically */
- static sbpb24 salt0[] =
- {
- 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 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, 0, 1,
- 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 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, 33, 34, 35, 36, 37, 32, 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, 0, 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, 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, 0, 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, 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, 0, 1, 2, 3, 4
- };
- static sbpb24 salt1[] =
- {
- 1152, 1216, 1280, 1344, 1408, 1472, 1536, 1600,
- 1664, 1728, 1792, 1856, 1920, 1984, 2048, 2112,
- 2176, 2240, 2304, 2368, 2432, 2496, 2560, 2624,
- 2688, 2752, 2816, 2880, 2944, 3008, 3072, 3136,
- 3200, 3264, 3328, 3392, 3456, 3520, 3584, 3648,
- 3712, 3776, 3840, 3904, 3968, 4032, 0, 64,
- 128, 192, 256, 320, 384, 448, 512, 576,
- 640, 704, 320, 384, 448, 512, 576, 640,
- 704, 768, 832, 896, 960, 1024, 1088, 1152,
- 1216, 1280, 1344, 1408, 1472, 1536, 1600, 1664,
- 1728, 1792, 1856, 1920, 1984, 2048, 2112, 2176,
- 2240, 2304, 2368, 2048, 2112, 2176, 2240, 2304,
- 2368, 2432, 2496, 2560, 2624, 2688, 2752, 2816,
- 2880, 2944, 3008, 3072, 3136, 3200, 3264, 3328,
- 3392, 3456, 3520, 3584, 3648, 3712, 3776, 3840,
- 3904, 3968, 4032, 0, 64, 128, 192, 256,
- 320, 384, 448, 512, 576, 640, 704, 768,
- 832, 896, 960, 1024, 1088, 1152, 1216, 1280,
- 1344, 1408, 1472, 1536, 1600, 1664, 1728, 1792,
- 1856, 1920, 1984, 2048, 2112, 2176, 2240, 2304,
- 2368, 2432, 2496, 2560, 2624, 2688, 2752, 2816,
- 2880, 2944, 3008, 3072, 3136, 3200, 3264, 3328,
- 3392, 3456, 3520, 3584, 3648, 3712, 3776, 3840,
- 3904, 3968, 4032, 0, 64, 128, 192, 256,
- 320, 384, 448, 512, 576, 640, 704, 768,
- 832, 896, 960, 1024, 1088, 1152, 1216, 1280,
- 1344, 1408, 1472, 1536, 1600, 1664, 1728, 1792,
- 1856, 1920, 1984, 2048, 2112, 2176, 2240, 2304,
- 2368, 2432, 2496, 2560, 2624, 2688, 2752, 2816,
- 2880, 2944, 3008, 3072, 3136, 3200, 3264, 3328,
- 3392, 3456, 3520, 3584, 3648, 3712, 3776, 3840,
- 3904, 3968, 4032, 0, 64, 128, 192, 256
- };
-
- /* final perutation desalting */
- static obpb1 final[] =
- {
- 46, 47, 48, 49, 50, 51, 52, 53,
- 54, 55, 56, 57, 65, 66, 67, 68,
- 69, 70, 71, 72, 73, 74, 75, 76,
- 77, 78, 79, 80, 81, 82, 83, 84,
- 85, 86, 87, 88, 89, 90, 97, 98,
- 99, 100, 101, 102, 103, 104, 105, 106,
- 107, 108, 109, 110, 111, 112, 113, 114,
- 115, 116, 117, 118, 119, 120, 121, 122,
- 123, 124, 125, 126, 127, 128, 129, 130,
- 131, 132, 133, 134, 135, 136, 137, 138,
- 139, 140, 141, 142, 143, 144, 145, 146,
- 147, 148, 149, 150, 151, 152, 153, 154,
- 155, 156, 157, 158, 159, 160, 161, 162,
- 163, 164, 165, 166, 167, 168, 169, 170,
- 171, 172, 173, 174, 175, 176, 177, 178,
- 179, 180, 181, 182, 183, 184, 185, 186,
- 187, 188, 189, 190, 191, 192, 193, 194,
- 195, 196, 197, 198, 199, 200, 201, 202,
- 203, 204, 205, 206, 207, 208, 209, 210,
- 211, 212, 213, 214, 215, 216, 217, 218,
- 219, 220, 221, 222, 223, 224, 225, 226,
- 227, 228, 229, 230, 231, 232, 233, 234,
- 235, 236, 237, 238, 239, 240, 241, 242,
- 243, 244, 245, 246, 247, 248, 249, 250,
- 251, 252, 253, 254, 255,
- /* Truncate overflow bits at 256 */
- 0, 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, 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
- };
-
- reg int i, j, k;
- reg long int *lip;
- sbpb24 saltvalue;
-
- #ifdef LOGIN
- if (_fcrypt_initialised == 0)
- {
- init_des();
- _fcrypt_initialised = 1;
- }
- #endif
-
- #ifdef BUILTIN_CLEAR
- lip = (long int *) crypt_block;
- for (i = (sizeof (crypt_block) / sizeof (long int)); i > 0; i--)
- {
- *(lip++) = 0L;
- }
- #else /* BUILTIN_CLEAR */
- #ifdef BZERO
- bzero (crypt_block, 66);
- #else /* BZERO */
- for (i = 0; i < 66; i++)
- {
- crypt_block[i] = '\0';
- }
- #endif /* BZERO */
- #endif /* BUILTIN_CLEAR */
-
- for (i = 0; (k = *pw) && i < 64; pw++)
- {
- crypt_block[i++] = (k >> 6) & 01;
- crypt_block[i++] = (k >> 5) & 01;
- crypt_block[i++] = (k >> 4) & 01;
- crypt_block[i++] = (k >> 3) & 01;
- crypt_block[i++] = (k >> 2) & 01;
- crypt_block[i++] = (k >> 1) & 01;
- crypt_block[i++] = (k >> 0) & 01;
- i++; /* have to skip one here (parity bit) */
- }
-
- fsetkey ( /* crypt_block */ );
-
- #ifdef BUILTIN_CLEAR
- lip = (long int *) crypt_block;
- for (i = (sizeof (crypt_block) / sizeof (long int)); i > 0; i--)
- {
- *(lip++) = 0L;
- }
- #else /* BUILTIN_CLEAR */
- #ifdef BZERO
- bzero (crypt_block, 66);
- #else /* BZERO */
- for (i = 0; i < 66; i++)
- {
- crypt_block[i] = '\0';
- }
- #endif /* BZERO */
- #endif /* BUILTIN_CLEAR */
-
- iobuf[0] = salt[0];
- iobuf[1] = salt[1];
-
- saltvalue = salt0[iobuf[0]] | salt1[iobuf[1]];
- saltvalue = TF_TO_SIXBIT (saltvalue);
-
- XForm (saltvalue);
- UnXForm ();
-
- for (i = 0; i < 11; i++)
- {
- k = 0;
-
- for (j = 0; j < 6; j++)
- {
- k = (k << 1) | crypt_block[SIX_TIMES (i) + j];
- }
- iobuf[i + 2] = final[k];
- }
-
- iobuf[i + 2] = 0;
-
- if (iobuf[1] == 0)
- {
- iobuf[1] = iobuf[0];
- }
- return (iobuf);
- }
- /********* INITIALISATION ROUTINES *********/
-
- fbpb4
- lookupS (tableno, t6bits)
- unsl tableno;
- sbpb6R t6bits;
- {
- static fbpb4R S[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,
- };
- sbpb6 fixed6bits;
- fbpb4R r;
- fbpb4 fixedr;
-
- fixed6bits = (((t6bits >> 0) & 01) << 5) +
- (((t6bits >> 1) & 01) << 3) +
- (((t6bits >> 2) & 01) << 2) +
- (((t6bits >> 3) & 01) << 1) +
- (((t6bits >> 4) & 01) << 0) +
- (((t6bits >> 5) & 01) << 4);
-
- r = S[tableno][fixed6bits];
-
- fixedr = (((r >> 3) & 01) << 0) +
- (((r >> 2) & 01) << 1) +
- (((r >> 1) & 01) << 2) +
- (((r >> 0) & 01) << 3);
-
- return (fixedr);
- }
-
- void
- init (tableno, lowptr, highptr)
- unsl tableno;
- sbpb24 *lowptr, *highptr;
- {
-
- static unsb P[] =
- {
- 15, 6, 19, 20,
- 28, 11, 27, 16,
- 0, 14, 22, 25,
- 4, 17, 30, 9,
- 1, 7, 23, 13,
- 31, 26, 2, 8,
- 18, 12, 29, 5,
- 21, 10, 3, 24,
- };
-
- static unsb E[] =
- {
- 31, 0, 1, 2, 3, 4,
- 3, 4, 5, 6, 7, 8,
- 7, 8, 9, 10, 11, 12,
- 11, 12, 13, 14, 15, 16,
- 15, 16, 17, 18, 19, 20,
- 19, 20, 21, 22, 23, 24,
- 23, 24, 25, 26, 27, 28,
- 27, 28, 29, 30, 31, 0,
- };
-
- static obpb1 tmp32[32];
- static obpb1 tmpP32[32];
- static obpb1 tmpE[48];
-
- int j, k, i;
- int tablenoX4;
- reg sbpb24 spare24;
-
- tablenoX4 = tableno * 4;
-
- for (j = 0; j < 64; j++)
- {
- k = lookupS (tableno, j);
-
- for (i = 0; i < 32; i++)
- {
- tmp32[i] = 0;
- }
- for (i = 0; i < 4; i++)
- {
- tmp32[tablenoX4 + i] = (k >> i) & 01;
- }
- for (i = 0; i < 32; i++)
- {
- tmpP32[i] = tmp32[P[i]];
- }
- for (i = 0; i < 48; i++)
- {
- tmpE[i] = tmpP32[E[i]];
- }
-
- lowptr[j] = 0;
- highptr[j] = 0;
-
- for (i = 0; i < 24; i++)
- {
- lowptr[j] |= tmpE[i] << i;
- }
- for (k = 0, i = 24; i < 48; i++, k++)
- {
- highptr[j] |= tmpE[i] << k;
- }
-
- spare24 = lowptr[j]; /* to allow for macro expansion */
- lowptr[j] = TF_TO_SIXBIT (spare24);
- spare24 = highptr[j]; /* to allow for macro expansion */
- highptr[j] = TF_TO_SIXBIT (spare24);
- }
- }
- init_des ()
- {
- init (0, S0L, S0H);
- init (1, S1L, S1H);
- init (2, S2L, S2H);
- init (3, S3L, S3H);
- init (4, S4L, S4H);
- init (5, S5L, S5H);
- init (6, S6L, S6H);
- init (7, S7L, S7H);
- }
-
-