* alignment).
*/
-
#define LOWSPACE
#ifndef NULL
/* Re-entrantify me -- all this junk needs to be in
* struct crypt_data to make this really reentrant... */
-static my_u_char_t inv_key_perm[64];
-static my_u_char_t inv_comp_perm[56];
-static my_u_char_t u_sbox[8][64];
-static my_u_char_t un_pbox[32];
+static my_u_char_t inv_key_perm[64];
+static my_u_char_t inv_comp_perm[56];
+static my_u_char_t u_sbox[8][64];
+static my_u_char_t un_pbox[32];
static my_u_int32_t en_keysl[16], en_keysr[16];
static my_u_int32_t de_keysl[16], de_keysr[16];
/* Static stuff that stays resident and doesn't change after
* being initialized, and therefore doesn't need to be made
* reentrant. */
-static my_u_char_t init_perm[64], final_perm[64];
-static my_u_char_t m_sbox[4][4096];
+static my_u_char_t init_perm[64], final_perm[64];
+static my_u_char_t m_sbox[4][4096];
#ifndef LOWSPACE
static my_u_int32_t psbox[4][256];
#endif
/* A pile of data */
-static const my_u_char_t ascii64[] = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-
-static const my_u_char_t IP[64] = {
- 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
+static const my_u_char_t ascii64[] =
+ "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+
+static const my_u_char_t IP[64] = {
+ 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
};
-static const my_u_char_t key_perm[56] = {
- 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 my_u_char_t key_perm[56] = {
+ 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 my_u_char_t key_shifts[16] = {
- 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
+static const my_u_char_t key_shifts[16] = {
+ 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
};
-static const my_u_char_t comp_perm[48] = {
- 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 my_u_char_t comp_perm[48] = {
+ 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
};
/*
* No E box is used, as it's replaced by some ANDs, shifts, and ORs.
*/
-static const my_u_char_t sbox[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
- }
+static const my_u_char_t sbox[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}
};
-static const my_u_char_t pbox[32] = {
- 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 const my_u_char_t pbox[32] = {
+ 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 const my_u_int32_t bits32[32] =
-{
- 0x80000000, 0x40000000, 0x20000000, 0x10000000,
- 0x08000000, 0x04000000, 0x02000000, 0x01000000,
- 0x00800000, 0x00400000, 0x00200000, 0x00100000,
- 0x00080000, 0x00040000, 0x00020000, 0x00010000,
- 0x00008000, 0x00004000, 0x00002000, 0x00001000,
- 0x00000800, 0x00000400, 0x00000200, 0x00000100,
- 0x00000080, 0x00000040, 0x00000020, 0x00000010,
- 0x00000008, 0x00000004, 0x00000002, 0x00000001
+static const my_u_int32_t bits32[32] = {
+ 0x80000000, 0x40000000, 0x20000000, 0x10000000,
+ 0x08000000, 0x04000000, 0x02000000, 0x01000000,
+ 0x00800000, 0x00400000, 0x00200000, 0x00100000,
+ 0x00080000, 0x00040000, 0x00020000, 0x00010000,
+ 0x00008000, 0x00004000, 0x00002000, 0x00001000,
+ 0x00000800, 0x00000400, 0x00000200, 0x00000100,
+ 0x00000080, 0x00000040, 0x00000020, 0x00000010,
+ 0x00000008, 0x00000004, 0x00000002, 0x00000001
};
-static const my_u_int32_t bits28[28] =
-{
- 0x08000000, 0x04000000, 0x02000000, 0x01000000,
- 0x00800000, 0x00400000, 0x00200000, 0x00100000,
- 0x00080000, 0x00040000, 0x00020000, 0x00010000,
- 0x00008000, 0x00004000, 0x00002000, 0x00001000,
- 0x00000800, 0x00000400, 0x00000200, 0x00000100,
- 0x00000080, 0x00000040, 0x00000020, 0x00000010,
- 0x00000008, 0x00000004, 0x00000002, 0x00000001
+static const my_u_int32_t bits28[28] = {
+ 0x08000000, 0x04000000, 0x02000000, 0x01000000,
+ 0x00800000, 0x00400000, 0x00200000, 0x00100000,
+ 0x00080000, 0x00040000, 0x00020000, 0x00010000,
+ 0x00008000, 0x00004000, 0x00002000, 0x00001000,
+ 0x00000800, 0x00000400, 0x00000200, 0x00000100,
+ 0x00000080, 0x00000040, 0x00000020, 0x00000010,
+ 0x00000008, 0x00000004, 0x00000002, 0x00000001
};
-static const my_u_int32_t bits24[24] =
-{
- 0x00800000, 0x00400000, 0x00200000, 0x00100000,
- 0x00080000, 0x00040000, 0x00020000, 0x00010000,
- 0x00008000, 0x00004000, 0x00002000, 0x00001000,
- 0x00000800, 0x00000400, 0x00000200, 0x00000100,
- 0x00000080, 0x00000040, 0x00000020, 0x00000010,
- 0x00000008, 0x00000004, 0x00000002, 0x00000001
+static const my_u_int32_t bits24[24] = {
+ 0x00800000, 0x00400000, 0x00200000, 0x00100000,
+ 0x00080000, 0x00040000, 0x00020000, 0x00010000,
+ 0x00008000, 0x00004000, 0x00002000, 0x00001000,
+ 0x00000800, 0x00000400, 0x00000200, 0x00000100,
+ 0x00000080, 0x00000040, 0x00000020, 0x00000010,
+ 0x00000008, 0x00000004, 0x00000002, 0x00000001
};
-static const my_u_char_t bits8[8] = { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
+static const my_u_char_t bits8[8] =
+ { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
// static const my_u_int32_t *bits28, *bits24;
-
-static int
-ascii_to_bin(char ch)
+static int ascii_to_bin(char ch)
{
- if (ch > 'z')
- return(0);
- if (ch >= 'a')
- return(ch - 'a' + 38);
- if (ch > 'Z')
- return(0);
- if (ch >= 'A')
- return(ch - 'A' + 12);
- if (ch > '9')
- return(0);
- if (ch >= '.')
- return(ch - '.');
- return(0);
+ if (ch > 'z')
+ return (0);
+ if (ch >= 'a')
+ return (ch - 'a' + 38);
+ if (ch > 'Z')
+ return (0);
+ if (ch >= 'A')
+ return (ch - 'A' + 12);
+ if (ch > '9')
+ return (0);
+ if (ch >= '.')
+ return (ch - '.');
+ return (0);
}
-static void
-des_init(void)
+static void des_init(void)
{
#ifdef LOWSPACE
- int i, j, b;
+ int i, j, b;
#else
- int i, j, b, k, inbit, obit;
- my_u_int32_t *p, *il, *ir, *fl, *fr;
+ int i, j, b, k, inbit, obit;
+ my_u_int32_t *p, *il, *ir, *fl, *fr;
#endif
- static int des_initialised = 0;
-
- if (des_initialised==1)
- return;
-
- old_rawkey0 = old_rawkey1 = 0L;
- saltbits = 0L;
- old_salt = 0L;
- // bits24 = (bits28 = bits32 + 4) + 4;
-
- /*
- * Invert the S-boxes, reordering the input bits.
- */
- for (i = 0; i < 8; i++)
- for (j = 0; j < 64; j++) {
- b = (j & 0x20) | ((j & 1) << 4) | ((j >> 1) & 0xf);
- u_sbox[i][j] = sbox[i][b];
- }
-
- /*
- * Convert the inverted S-boxes into 4 arrays of 8 bits.
- * Each will handle 12 bits of the S-box input.
- */
- for (b = 0; b < 4; b++)
- for (i = 0; i < 64; i++)
- for (j = 0; j < 64; j++)
- m_sbox[b][(i << 6) | j] =
- (my_u_char_t)((u_sbox[(b << 1)][i] << 4) |
- u_sbox[(b << 1) + 1][j]);
-
- /*
- * Set up the initial & final permutations into a useful form, and
- * initialise the inverted key permutation.
- */
- for (i = 0; i < 64; i++) {
- init_perm[final_perm[i] = IP[i] - 1] = (my_u_char_t)i;
- inv_key_perm[i] = 255;
+ static int des_initialised = 0;
+
+ if (des_initialised == 1)
+ return;
+
+ old_rawkey0 = old_rawkey1 = 0L;
+ saltbits = 0L;
+ old_salt = 0L;
+ // bits24 = (bits28 = bits32 + 4) + 4;
+
+ /*
+ * Invert the S-boxes, reordering the input bits.
+ */
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 64; j++) {
+ b = (j & 0x20) | ((j & 1) << 4) | ((j >> 1) & 0xf);
+ u_sbox[i][j] = sbox[i][b];
}
- /*
- * Invert the key permutation and initialise the inverted key
- * compression permutation.
- */
- for (i = 0; i < 56; i++) {
- inv_key_perm[key_perm[i] - 1] = (my_u_char_t)i;
- inv_comp_perm[i] = 255;
- }
+ /*
+ * Convert the inverted S-boxes into 4 arrays of 8 bits.
+ * Each will handle 12 bits of the S-box input.
+ */
+ for (b = 0; b < 4; b++)
+ for (i = 0; i < 64; i++)
+ for (j = 0; j < 64; j++)
+ m_sbox[b][(i << 6) | j] =
+ (my_u_char_t) ((u_sbox[(b << 1)][i] << 4) |
+ u_sbox[(b << 1) + 1][j]);
+
+ /*
+ * Set up the initial & final permutations into a useful form, and
+ * initialise the inverted key permutation.
+ */
+ for (i = 0; i < 64; i++) {
+ init_perm[final_perm[i] = IP[i] - 1] = (my_u_char_t) i;
+ inv_key_perm[i] = 255;
+ }
- /*
- * Invert the key compression permutation.
- */
- for (i = 0; i < 48; i++) {
- inv_comp_perm[comp_perm[i] - 1] = (my_u_char_t)i;
- }
+ /*
+ * Invert the key permutation and initialise the inverted key
+ * compression permutation.
+ */
+ for (i = 0; i < 56; i++) {
+ inv_key_perm[key_perm[i] - 1] = (my_u_char_t) i;
+ inv_comp_perm[i] = 255;
+ }
- /*
- * Set up the OR-mask arrays for the initial and final permutations,
- * and for the key initial and compression permutations.
- */
+ /*
+ * Invert the key compression permutation.
+ */
+ for (i = 0; i < 48; i++) {
+ inv_comp_perm[comp_perm[i] - 1] = (my_u_char_t) i;
+ }
+
+ /*
+ * Set up the OR-mask arrays for the initial and final permutations,
+ * and for the key initial and compression permutations.
+ */
#ifndef LOWSPACE
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 256; i++) {
- *(il = &ip_maskl[k][i]) = 0L;
- *(ir = &ip_maskr[k][i]) = 0L;
- *(fl = &fp_maskl[k][i]) = 0L;
- *(fr = &fp_maskr[k][i]) = 0L;
- for (j = 0; j < 8; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j]) {
- if ((obit = init_perm[inbit]) < 32)
- *il |= bits32[obit];
- else
- *ir |= bits32[obit-32];
- if ((obit = final_perm[inbit]) < 32)
- *fl |= bits32[obit];
- else
- *fr |= bits32[obit - 32];
- }
- }
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 256; i++) {
+ *(il = &ip_maskl[k][i]) = 0L;
+ *(ir = &ip_maskr[k][i]) = 0L;
+ *(fl = &fp_maskl[k][i]) = 0L;
+ *(fr = &fp_maskr[k][i]) = 0L;
+ for (j = 0; j < 8; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j]) {
+ if ((obit = init_perm[inbit]) < 32)
+ *il |= bits32[obit];
+ else
+ *ir |= bits32[obit - 32];
+ if ((obit = final_perm[inbit]) < 32)
+ *fl |= bits32[obit];
+ else
+ *fr |= bits32[obit - 32];
+ }
+ }
+ }
+ for (i = 0; i < 128; i++) {
+ *(il = &key_perm_maskl[k][i]) = 0L;
+ *(ir = &key_perm_maskr[k][i]) = 0L;
+ for (j = 0; j < 7; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j + 1]) {
+ if ((obit = inv_key_perm[inbit]) == 255)
+ continue;
+ if (obit < 28)
+ *il |= bits28[obit];
+ else
+ *ir |= bits28[obit - 28];
}
- for (i = 0; i < 128; i++) {
- *(il = &key_perm_maskl[k][i]) = 0L;
- *(ir = &key_perm_maskr[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit = inv_key_perm[inbit]) == 255)
- continue;
- if (obit < 28)
- *il |= bits28[obit];
- else
- *ir |= bits28[obit - 28];
- }
- }
- *(il = &comp_maskl[k][i]) = 0L;
- *(ir = &comp_maskr[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 7 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit=inv_comp_perm[inbit]) == 255)
- continue;
- if (obit < 24)
- *il |= bits24[obit];
- else
- *ir |= bits24[obit - 24];
- }
- }
+ }
+ *(il = &comp_maskl[k][i]) = 0L;
+ *(ir = &comp_maskr[k][i]) = 0L;
+ for (j = 0; j < 7; j++) {
+ inbit = 7 * k + j;
+ if (i & bits8[j + 1]) {
+ if ((obit = inv_comp_perm[inbit]) == 255)
+ continue;
+ if (obit < 24)
+ *il |= bits24[obit];
+ else
+ *ir |= bits24[obit - 24];
}
+ }
}
+ }
#endif
- /*
- * Invert the P-box permutation, and convert into OR-masks for
- * handling the output of the S-box arrays setup above.
- */
- for (i = 0; i < 32; i++)
- un_pbox[pbox[i] - 1] = (my_u_char_t)i;
+ /*
+ * Invert the P-box permutation, and convert into OR-masks for
+ * handling the output of the S-box arrays setup above.
+ */
+ for (i = 0; i < 32; i++)
+ un_pbox[pbox[i] - 1] = (my_u_char_t) i;
#ifndef LOWSPACE
- for (b = 0; b < 4; b++)
- for (i = 0; i < 256; i++) {
- *(p = &psbox[b][i]) = 0L;
- for (j = 0; j < 8; j++) {
- if (i & bits8[j])
- *p |= bits32[un_pbox[8 * b + j]];
- }
- }
+ for (b = 0; b < 4; b++)
+ for (i = 0; i < 256; i++) {
+ *(p = &psbox[b][i]) = 0L;
+ for (j = 0; j < 8; j++) {
+ if (i & bits8[j])
+ *p |= bits32[un_pbox[8 * b + j]];
+ }
+ }
#endif
- des_initialised = 1;
+ des_initialised = 1;
}
-
#ifdef LOWSPACE
-static void
-setup_ip_maskl(void)
+static void setup_ip_maskl(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *il;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 256; i++) {
- *(il = &common[k][i]) = 0L;
- for (j = 0; j < 8; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j]) {
- if ((obit = init_perm[inbit]) < 32)
- *il |= bits32[obit];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *il;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 256; i++) {
+ *(il = &common[k][i]) = 0L;
+ for (j = 0; j < 8; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j]) {
+ if ((obit = init_perm[inbit]) < 32)
+ *il |= bits32[obit];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_ip_maskr(void)
+static void setup_ip_maskr(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *ir;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 256; i++) {
- *(ir = &common[k][i]) = 0L;
- for (j = 0; j < 8; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j]) {
- if ((obit = init_perm[inbit]) >= 32)
- *ir |= bits32[obit-32];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *ir;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 256; i++) {
+ *(ir = &common[k][i]) = 0L;
+ for (j = 0; j < 8; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j]) {
+ if ((obit = init_perm[inbit]) >= 32)
+ *ir |= bits32[obit - 32];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_fp_maskl(void)
+static void setup_fp_maskl(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *fl;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 256; i++) {
- *(fl = &common[k][i]) = 0L;
- for (j = 0; j < 8; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j]) {
- if ((obit = final_perm[inbit]) < 32)
- *fl |= bits32[obit];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *fl;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 256; i++) {
+ *(fl = &common[k][i]) = 0L;
+ for (j = 0; j < 8; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j]) {
+ if ((obit = final_perm[inbit]) < 32)
+ *fl |= bits32[obit];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_fp_maskr(void)
+static void setup_fp_maskr(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *fr;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 256; i++) {
- *(fr = &common[k][i]) = 0L;
- for (j = 0; j < 8; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j]) {
- if ((obit = final_perm[inbit]) >= 32)
- *fr |= bits32[obit - 32];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *fr;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 256; i++) {
+ *(fr = &common[k][i]) = 0L;
+ for (j = 0; j < 8; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j]) {
+ if ((obit = final_perm[inbit]) >= 32)
+ *fr |= bits32[obit - 32];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_key_perm_maskl(void)
+static void setup_key_perm_maskl(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *il;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 128; i++) {
- *(il = &common[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit = inv_key_perm[inbit]) == 255)
- continue;
- if (obit < 28)
- *il |= bits28[obit];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *il;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 128; i++) {
+ *(il = &common[k][i]) = 0L;
+ for (j = 0; j < 7; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j + 1]) {
+ if ((obit = inv_key_perm[inbit]) == 255)
+ continue;
+ if (obit < 28)
+ *il |= bits28[obit];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_key_perm_maskr(void)
+static void setup_key_perm_maskr(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *ir;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 128; i++) {
- *(ir = &common[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit = inv_key_perm[inbit]) == 255)
- continue;
- if (obit >= 28)
- *ir |= bits28[obit - 28];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *ir;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 128; i++) {
+ *(ir = &common[k][i]) = 0L;
+ for (j = 0; j < 7; j++) {
+ inbit = 8 * k + j;
+ if (i & bits8[j + 1]) {
+ if ((obit = inv_key_perm[inbit]) == 255)
+ continue;
+ if (obit >= 28)
+ *ir |= bits28[obit - 28];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_comp_maskl(void)
+static void setup_comp_maskl(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *il;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 128; i++) {
- *(il = &common[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 7 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit=inv_comp_perm[inbit]) == 255)
- continue;
- if (obit < 24)
- *il |= bits24[obit];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *il;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 128; i++) {
+ *(il = &common[k][i]) = 0L;
+ for (j = 0; j < 7; j++) {
+ inbit = 7 * k + j;
+ if (i & bits8[j + 1]) {
+ if ((obit = inv_comp_perm[inbit]) == 255)
+ continue;
+ if (obit < 24)
+ *il |= bits24[obit];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_comp_maskr(void)
+static void setup_comp_maskr(void)
{
- int i, j, k, inbit, obit;
- my_u_int32_t *ir;
-
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 128; i++) {
- *(ir = &common[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 7 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit=inv_comp_perm[inbit]) == 255)
- continue;
- if (obit >= 24)
- *ir |= bits24[obit - 24];
+ int i, j, k, inbit, obit;
+ my_u_int32_t *ir;
+
+ for (k = 0; k < 8; k++) {
+ for (i = 0; i < 128; i++) {
+ *(ir = &common[k][i]) = 0L;
+ for (j = 0; j < 7; j++) {
+ inbit = 7 * k + j;
+ if (i & bits8[j + 1]) {
+ if ((obit = inv_comp_perm[inbit]) == 255)
+ continue;
+ if (obit >= 24)
+ *ir |= bits24[obit - 24];
+ }
+ }
}
- }
}
- }
}
-static void
-setup_psbox(void)
+static void setup_psbox(void)
{
- int i, j, b;
- my_u_int32_t *p;
-
- for (b = 0; b < 4; b++)
- for (i = 0; i < 256; i++) {
- *(p = &common[b][i]) = 0L;
- for (j = 0; j < 8; j++) {
- if (i & bits8[j])
- *p |= bits32[un_pbox[8 * b + j]];
- }
- }
+ int i, j, b;
+ my_u_int32_t *p;
+
+ for (b = 0; b < 4; b++)
+ for (i = 0; i < 256; i++) {
+ *(p = &common[b][i]) = 0L;
+ for (j = 0; j < 8; j++) {
+ if (i & bits8[j])
+ *p |= bits32[un_pbox[8 * b + j]];
+ }
+ }
}
#endif
-static void
-setup_salt(my_u_int32_t salt)
+static void setup_salt(my_u_int32_t salt)
{
- my_u_int32_t obit, saltbit;
- int i;
-
- if (salt == old_salt)
- return;
- old_salt = salt;
-
- saltbits = 0L;
- saltbit = 1;
- obit = 0x800000;
- for (i = 0; i < 24; i++) {
- if (salt & saltbit)
- saltbits |= obit;
- saltbit <<= 1;
- obit >>= 1;
- }
+ my_u_int32_t obit, saltbit;
+ int i;
+
+ if (salt == old_salt)
+ return;
+ old_salt = salt;
+
+ saltbits = 0L;
+ saltbit = 1;
+ obit = 0x800000;
+ for (i = 0; i < 24; i++) {
+ if (salt & saltbit)
+ saltbits |= obit;
+ saltbit <<= 1;
+ obit >>= 1;
+ }
}
-
static my_u_int32_t char_to_int(const char *key)
{
- my_u_int32_t byte0,byte1,byte2,byte3;
- byte0 = (my_u_int32_t) (my_u_char_t) key[0];
- byte1 = (my_u_int32_t) (my_u_char_t) key[1];
- byte2 = (my_u_int32_t) (my_u_char_t) key[2];
- byte3 = (my_u_int32_t) (my_u_char_t) key[3];
+ my_u_int32_t byte0, byte1, byte2, byte3;
+ byte0 = (my_u_int32_t) (my_u_char_t) key[0];
+ byte1 = (my_u_int32_t) (my_u_char_t) key[1];
+ byte2 = (my_u_int32_t) (my_u_char_t) key[2];
+ byte3 = (my_u_int32_t) (my_u_char_t) key[3];
- return byte0 << 24 | byte1 << 16 | byte2 << 8 | byte3 ;
+ return byte0 << 24 | byte1 << 16 | byte2 << 8 | byte3;
}
-
-static int
-des_setkey(const char *key)
+static int des_setkey(const char *key)
{
- my_u_int32_t k0, k1, rawkey0, rawkey1;
- int shifts, round;
+ my_u_int32_t k0, k1, rawkey0, rawkey1;
+ int shifts, round;
- des_init();
+ des_init();
- /* rawkey0 = ntohl(*(const my_u_int32_t *) key);
- * rawkey1 = ntohl(*(const my_u_int32_t *) (key + 4));
- */
+ /* rawkey0 = ntohl(*(const my_u_int32_t *) key);
+ * rawkey1 = ntohl(*(const my_u_int32_t *) (key + 4));
+ */
- rawkey0 = char_to_int(key);
- rawkey1 = char_to_int(key+4);
-
- if ((rawkey0 | rawkey1)
- && rawkey0 == old_rawkey0
- && rawkey1 == old_rawkey1) {
- /*
- * Already setup for this key.
- * This optimisation fails on a zero key (which is weak and
- * has bad parity anyway) in order to simplify the starting
- * conditions.
- */
- return(0);
- }
- old_rawkey0 = rawkey0;
- old_rawkey1 = rawkey1;
+ rawkey0 = char_to_int(key);
+ rawkey1 = char_to_int(key + 4);
+ if ((rawkey0 | rawkey1)
+ && rawkey0 == old_rawkey0 && rawkey1 == old_rawkey1) {
/*
- * Do key permutation and split into two 28-bit subkeys.
+ * Already setup for this key.
+ * This optimisation fails on a zero key (which is weak and
+ * has bad parity anyway) in order to simplify the starting
+ * conditions.
*/
+ return (0);
+ }
+ old_rawkey0 = rawkey0;
+ old_rawkey1 = rawkey1;
+
+ /*
+ * Do key permutation and split into two 28-bit subkeys.
+ */
#ifdef LOWSPACE
- setup_key_perm_maskl();
- k0 = common[0][rawkey0 >> 25]
- | common[1][(rawkey0 >> 17) & 0x7f]
- | common[2][(rawkey0 >> 9) & 0x7f]
- | common[3][(rawkey0 >> 1) & 0x7f]
- | common[4][rawkey1 >> 25]
- | common[5][(rawkey1 >> 17) & 0x7f]
- | common[6][(rawkey1 >> 9) & 0x7f]
- | common[7][(rawkey1 >> 1) & 0x7f];
- setup_key_perm_maskr();
- k1 = common[0][rawkey0 >> 25]
- | common[1][(rawkey0 >> 17) & 0x7f]
- | common[2][(rawkey0 >> 9) & 0x7f]
- | common[3][(rawkey0 >> 1) & 0x7f]
- | common[4][rawkey1 >> 25]
- | common[5][(rawkey1 >> 17) & 0x7f]
- | common[6][(rawkey1 >> 9) & 0x7f]
- | common[7][(rawkey1 >> 1) & 0x7f];
+ setup_key_perm_maskl();
+ k0 = common[0][rawkey0 >> 25]
+ | common[1][(rawkey0 >> 17) & 0x7f]
+ | common[2][(rawkey0 >> 9) & 0x7f]
+ | common[3][(rawkey0 >> 1) & 0x7f]
+ | common[4][rawkey1 >> 25]
+ | common[5][(rawkey1 >> 17) & 0x7f]
+ | common[6][(rawkey1 >> 9) & 0x7f]
+ | common[7][(rawkey1 >> 1) & 0x7f];
+ setup_key_perm_maskr();
+ k1 = common[0][rawkey0 >> 25]
+ | common[1][(rawkey0 >> 17) & 0x7f]
+ | common[2][(rawkey0 >> 9) & 0x7f]
+ | common[3][(rawkey0 >> 1) & 0x7f]
+ | common[4][rawkey1 >> 25]
+ | common[5][(rawkey1 >> 17) & 0x7f]
+ | common[6][(rawkey1 >> 9) & 0x7f]
+ | common[7][(rawkey1 >> 1) & 0x7f];
#else
- k0 = key_perm_maskl[0][rawkey0 >> 25]
- | key_perm_maskl[1][(rawkey0 >> 17) & 0x7f]
- | key_perm_maskl[2][(rawkey0 >> 9) & 0x7f]
- | key_perm_maskl[3][(rawkey0 >> 1) & 0x7f]
- | key_perm_maskl[4][rawkey1 >> 25]
- | key_perm_maskl[5][(rawkey1 >> 17) & 0x7f]
- | key_perm_maskl[6][(rawkey1 >> 9) & 0x7f]
- | key_perm_maskl[7][(rawkey1 >> 1) & 0x7f];
- k1 = key_perm_maskr[0][rawkey0 >> 25]
- | key_perm_maskr[1][(rawkey0 >> 17) & 0x7f]
- | key_perm_maskr[2][(rawkey0 >> 9) & 0x7f]
- | key_perm_maskr[3][(rawkey0 >> 1) & 0x7f]
- | key_perm_maskr[4][rawkey1 >> 25]
- | key_perm_maskr[5][(rawkey1 >> 17) & 0x7f]
- | key_perm_maskr[6][(rawkey1 >> 9) & 0x7f]
- | key_perm_maskr[7][(rawkey1 >> 1) & 0x7f];
+ k0 = key_perm_maskl[0][rawkey0 >> 25]
+ | key_perm_maskl[1][(rawkey0 >> 17) & 0x7f]
+ | key_perm_maskl[2][(rawkey0 >> 9) & 0x7f]
+ | key_perm_maskl[3][(rawkey0 >> 1) & 0x7f]
+ | key_perm_maskl[4][rawkey1 >> 25]
+ | key_perm_maskl[5][(rawkey1 >> 17) & 0x7f]
+ | key_perm_maskl[6][(rawkey1 >> 9) & 0x7f]
+ | key_perm_maskl[7][(rawkey1 >> 1) & 0x7f];
+ k1 = key_perm_maskr[0][rawkey0 >> 25]
+ | key_perm_maskr[1][(rawkey0 >> 17) & 0x7f]
+ | key_perm_maskr[2][(rawkey0 >> 9) & 0x7f]
+ | key_perm_maskr[3][(rawkey0 >> 1) & 0x7f]
+ | key_perm_maskr[4][rawkey1 >> 25]
+ | key_perm_maskr[5][(rawkey1 >> 17) & 0x7f]
+ | key_perm_maskr[6][(rawkey1 >> 9) & 0x7f]
+ | key_perm_maskr[7][(rawkey1 >> 1) & 0x7f];
#endif
- /*
- * Rotate subkeys and do compression permutation.
- */
- shifts = 0;
- for (round = 0; round < 16; round++) {
- my_u_int32_t t0, t1;
+ /*
+ * Rotate subkeys and do compression permutation.
+ */
+ shifts = 0;
+ for (round = 0; round < 16; round++) {
+ my_u_int32_t t0, t1;
- shifts += key_shifts[round];
+ shifts += key_shifts[round];
- t0 = (k0 << shifts) | (k0 >> (28 - shifts));
- t1 = (k1 << shifts) | (k1 >> (28 - shifts));
+ t0 = (k0 << shifts) | (k0 >> (28 - shifts));
+ t1 = (k1 << shifts) | (k1 >> (28 - shifts));
#ifdef LOWSPACE
- setup_comp_maskl();
- de_keysl[15 - round] =
- en_keysl[round] = common[0][(t0 >> 21) & 0x7f]
- | common[1][(t0 >> 14) & 0x7f]
- | common[2][(t0 >> 7) & 0x7f]
- | common[3][t0 & 0x7f]
- | common[4][(t1 >> 21) & 0x7f]
- | common[5][(t1 >> 14) & 0x7f]
- | common[6][(t1 >> 7) & 0x7f]
- | common[7][t1 & 0x7f];
-
- setup_comp_maskr();
- de_keysr[15 - round] =
- en_keysr[round] = common[0][(t0 >> 21) & 0x7f]
- | common[1][(t0 >> 14) & 0x7f]
- | common[2][(t0 >> 7) & 0x7f]
- | common[3][t0 & 0x7f]
- | common[4][(t1 >> 21) & 0x7f]
- | common[5][(t1 >> 14) & 0x7f]
- | common[6][(t1 >> 7) & 0x7f]
- | common[7][t1 & 0x7f];
+ setup_comp_maskl();
+ de_keysl[15 - round] = en_keysl[round] = common[0][(t0 >> 21) & 0x7f]
+ | common[1][(t0 >> 14) & 0x7f]
+ | common[2][(t0 >> 7) & 0x7f]
+ | common[3][t0 & 0x7f]
+ | common[4][(t1 >> 21) & 0x7f]
+ | common[5][(t1 >> 14) & 0x7f]
+ | common[6][(t1 >> 7) & 0x7f]
+ | common[7][t1 & 0x7f];
+
+ setup_comp_maskr();
+ de_keysr[15 - round] = en_keysr[round] = common[0][(t0 >> 21) & 0x7f]
+ | common[1][(t0 >> 14) & 0x7f]
+ | common[2][(t0 >> 7) & 0x7f]
+ | common[3][t0 & 0x7f]
+ | common[4][(t1 >> 21) & 0x7f]
+ | common[5][(t1 >> 14) & 0x7f]
+ | common[6][(t1 >> 7) & 0x7f]
+ | common[7][t1 & 0x7f];
#else
- de_keysl[15 - round] =
- en_keysl[round] = comp_maskl[0][(t0 >> 21) & 0x7f]
- | comp_maskl[1][(t0 >> 14) & 0x7f]
- | comp_maskl[2][(t0 >> 7) & 0x7f]
- | comp_maskl[3][t0 & 0x7f]
- | comp_maskl[4][(t1 >> 21) & 0x7f]
- | comp_maskl[5][(t1 >> 14) & 0x7f]
- | comp_maskl[6][(t1 >> 7) & 0x7f]
- | comp_maskl[7][t1 & 0x7f];
-
- de_keysr[15 - round] =
- en_keysr[round] = comp_maskr[0][(t0 >> 21) & 0x7f]
- | comp_maskr[1][(t0 >> 14) & 0x7f]
- | comp_maskr[2][(t0 >> 7) & 0x7f]
- | comp_maskr[3][t0 & 0x7f]
- | comp_maskr[4][(t1 >> 21) & 0x7f]
- | comp_maskr[5][(t1 >> 14) & 0x7f]
- | comp_maskr[6][(t1 >> 7) & 0x7f]
- | comp_maskr[7][t1 & 0x7f];
+ de_keysl[15 - round] =
+ en_keysl[round] = comp_maskl[0][(t0 >> 21) & 0x7f]
+ | comp_maskl[1][(t0 >> 14) & 0x7f]
+ | comp_maskl[2][(t0 >> 7) & 0x7f]
+ | comp_maskl[3][t0 & 0x7f]
+ | comp_maskl[4][(t1 >> 21) & 0x7f]
+ | comp_maskl[5][(t1 >> 14) & 0x7f]
+ | comp_maskl[6][(t1 >> 7) & 0x7f]
+ | comp_maskl[7][t1 & 0x7f];
+
+ de_keysr[15 - round] =
+ en_keysr[round] = comp_maskr[0][(t0 >> 21) & 0x7f]
+ | comp_maskr[1][(t0 >> 14) & 0x7f]
+ | comp_maskr[2][(t0 >> 7) & 0x7f]
+ | comp_maskr[3][t0 & 0x7f]
+ | comp_maskr[4][(t1 >> 21) & 0x7f]
+ | comp_maskr[5][(t1 >> 14) & 0x7f]
+ | comp_maskr[6][(t1 >> 7) & 0x7f]
+ | comp_maskr[7][t1 & 0x7f];
#endif
- }
- return(0);
+ }
+ return (0);
}
-
static int
-do_des( my_u_int32_t l_in, my_u_int32_t r_in, my_u_int32_t *l_out, my_u_int32_t *r_out, int count)
+do_des(my_u_int32_t l_in, my_u_int32_t r_in, my_u_int32_t * l_out,
+ my_u_int32_t * r_out, int count)
{
+ /*
+ * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format.
+ */
+ my_u_int32_t l, r, *kl, *kr, *kl1, *kr1;
+ my_u_int32_t f, r48l, r48r;
+ int round;
+
+ if (count == 0) {
+ return (1);
+ } else if (count > 0) {
/*
- * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format.
+ * Encrypting
*/
- my_u_int32_t l, r, *kl, *kr, *kl1, *kr1;
- my_u_int32_t f, r48l, r48r;
- int round;
-
- if (count == 0) {
- return(1);
- } else if (count > 0) {
- /*
- * Encrypting
- */
- kl1 = en_keysl;
- kr1 = en_keysr;
- } else {
- /*
- * Decrypting
- */
- count = -count;
- kl1 = de_keysl;
- kr1 = de_keysr;
- }
-
+ kl1 = en_keysl;
+ kr1 = en_keysr;
+ } else {
/*
- * Do initial permutation (IP).
+ * Decrypting
*/
+ count = -count;
+ kl1 = de_keysl;
+ kr1 = de_keysr;
+ }
+
+ /*
+ * Do initial permutation (IP).
+ */
#ifdef LOWSPACE
- setup_ip_maskl();
- l = common[0][l_in >> 24]
- | common[1][(l_in >> 16) & 0xff]
- | common[2][(l_in >> 8) & 0xff]
- | common[3][l_in & 0xff]
- | common[4][r_in >> 24]
- | common[5][(r_in >> 16) & 0xff]
- | common[6][(r_in >> 8) & 0xff]
- | common[7][r_in & 0xff];
- setup_ip_maskr();
- r = common[0][l_in >> 24]
- | common[1][(l_in >> 16) & 0xff]
- | common[2][(l_in >> 8) & 0xff]
- | common[3][l_in & 0xff]
- | common[4][r_in >> 24]
- | common[5][(r_in >> 16) & 0xff]
- | common[6][(r_in >> 8) & 0xff]
- | common[7][r_in & 0xff];
+ setup_ip_maskl();
+ l = common[0][l_in >> 24]
+ | common[1][(l_in >> 16) & 0xff]
+ | common[2][(l_in >> 8) & 0xff]
+ | common[3][l_in & 0xff]
+ | common[4][r_in >> 24]
+ | common[5][(r_in >> 16) & 0xff]
+ | common[6][(r_in >> 8) & 0xff]
+ | common[7][r_in & 0xff];
+ setup_ip_maskr();
+ r = common[0][l_in >> 24]
+ | common[1][(l_in >> 16) & 0xff]
+ | common[2][(l_in >> 8) & 0xff]
+ | common[3][l_in & 0xff]
+ | common[4][r_in >> 24]
+ | common[5][(r_in >> 16) & 0xff]
+ | common[6][(r_in >> 8) & 0xff]
+ | common[7][r_in & 0xff];
#else
- l = ip_maskl[0][l_in >> 24]
- | ip_maskl[1][(l_in >> 16) & 0xff]
- | ip_maskl[2][(l_in >> 8) & 0xff]
- | ip_maskl[3][l_in & 0xff]
- | ip_maskl[4][r_in >> 24]
- | ip_maskl[5][(r_in >> 16) & 0xff]
- | ip_maskl[6][(r_in >> 8) & 0xff]
- | ip_maskl[7][r_in & 0xff];
- r = ip_maskr[0][l_in >> 24]
- | ip_maskr[1][(l_in >> 16) & 0xff]
- | ip_maskr[2][(l_in >> 8) & 0xff]
- | ip_maskr[3][l_in & 0xff]
- | ip_maskr[4][r_in >> 24]
- | ip_maskr[5][(r_in >> 16) & 0xff]
- | ip_maskr[6][(r_in >> 8) & 0xff]
- | ip_maskr[7][r_in & 0xff];
+ l = ip_maskl[0][l_in >> 24]
+ | ip_maskl[1][(l_in >> 16) & 0xff]
+ | ip_maskl[2][(l_in >> 8) & 0xff]
+ | ip_maskl[3][l_in & 0xff]
+ | ip_maskl[4][r_in >> 24]
+ | ip_maskl[5][(r_in >> 16) & 0xff]
+ | ip_maskl[6][(r_in >> 8) & 0xff]
+ | ip_maskl[7][r_in & 0xff];
+ r = ip_maskr[0][l_in >> 24]
+ | ip_maskr[1][(l_in >> 16) & 0xff]
+ | ip_maskr[2][(l_in >> 8) & 0xff]
+ | ip_maskr[3][l_in & 0xff]
+ | ip_maskr[4][r_in >> 24]
+ | ip_maskr[5][(r_in >> 16) & 0xff]
+ | ip_maskr[6][(r_in >> 8) & 0xff]
+ | ip_maskr[7][r_in & 0xff];
#endif
- while (count--) {
- /*
- * Do each round.
- */
- kl = kl1;
- kr = kr1;
- round = 16;
- while (round--) {
- /*
- * Expand R to 48 bits (simulate the E-box).
- */
- r48l = ((r & 0x00000001) << 23)
- | ((r & 0xf8000000) >> 9)
- | ((r & 0x1f800000) >> 11)
- | ((r & 0x01f80000) >> 13)
- | ((r & 0x001f8000) >> 15);
-
- r48r = ((r & 0x0001f800) << 7)
- | ((r & 0x00001f80) << 5)
- | ((r & 0x000001f8) << 3)
- | ((r & 0x0000001f) << 1)
- | ((r & 0x80000000) >> 31);
- /*
- * Do salting for crypt() and friends, and
- * XOR with the permuted key.
- */
- f = (r48l ^ r48r) & saltbits;
- r48l ^= f ^ *kl++;
- r48r ^= f ^ *kr++;
- /*
- * Do sbox lookups (which shrink it back to 32 bits)
- * and do the pbox permutation at the same time.
- */
+ while (count--) {
+ /*
+ * Do each round.
+ */
+ kl = kl1;
+ kr = kr1;
+ round = 16;
+ while (round--) {
+ /*
+ * Expand R to 48 bits (simulate the E-box).
+ */
+ r48l = ((r & 0x00000001) << 23)
+ | ((r & 0xf8000000) >> 9)
+ | ((r & 0x1f800000) >> 11)
+ | ((r & 0x01f80000) >> 13)
+ | ((r & 0x001f8000) >> 15);
+
+ r48r = ((r & 0x0001f800) << 7)
+ | ((r & 0x00001f80) << 5)
+ | ((r & 0x000001f8) << 3)
+ | ((r & 0x0000001f) << 1)
+ | ((r & 0x80000000) >> 31);
+ /*
+ * Do salting for crypt() and friends, and
+ * XOR with the permuted key.
+ */
+ f = (r48l ^ r48r) & saltbits;
+ r48l ^= f ^ *kl++;
+ r48r ^= f ^ *kr++;
+ /*
+ * Do sbox lookups (which shrink it back to 32 bits)
+ * and do the pbox permutation at the same time.
+ */
#ifdef LOWSPACE
- setup_psbox();
- f = common[0][m_sbox[0][r48l >> 12]]
- | common[1][m_sbox[1][r48l & 0xfff]]
- | common[2][m_sbox[2][r48r >> 12]]
- | common[3][m_sbox[3][r48r & 0xfff]];
+ setup_psbox();
+ f = common[0][m_sbox[0][r48l >> 12]]
+ | common[1][m_sbox[1][r48l & 0xfff]]
+ | common[2][m_sbox[2][r48r >> 12]]
+ | common[3][m_sbox[3][r48r & 0xfff]];
#else
- f = psbox[0][m_sbox[0][r48l >> 12]]
- | psbox[1][m_sbox[1][r48l & 0xfff]]
- | psbox[2][m_sbox[2][r48r >> 12]]
- | psbox[3][m_sbox[3][r48r & 0xfff]];
+ f = psbox[0][m_sbox[0][r48l >> 12]]
+ | psbox[1][m_sbox[1][r48l & 0xfff]]
+ | psbox[2][m_sbox[2][r48r >> 12]]
+ | psbox[3][m_sbox[3][r48r & 0xfff]];
#endif
- /*
- * Now that we've permuted things, complete f().
- */
- f ^= l;
- l = r;
- r = f;
- }
- r = l;
- l = f;
+ /*
+ * Now that we've permuted things, complete f().
+ */
+ f ^= l;
+ l = r;
+ r = f;
}
- /*
- * Do final permutation (inverse of IP).
- */
+ r = l;
+ l = f;
+ }
+ /*
+ * Do final permutation (inverse of IP).
+ */
#ifdef LOWSPACE
- setup_fp_maskl();
- *l_out = common[0][l >> 24]
- | common[1][(l >> 16) & 0xff]
- | common[2][(l >> 8) & 0xff]
- | common[3][l & 0xff]
- | common[4][r >> 24]
- | common[5][(r >> 16) & 0xff]
- | common[6][(r >> 8) & 0xff]
- | common[7][r & 0xff];
- setup_fp_maskr();
- *r_out = common[0][l >> 24]
- | common[1][(l >> 16) & 0xff]
- | common[2][(l >> 8) & 0xff]
- | common[3][l & 0xff]
- | common[4][r >> 24]
- | common[5][(r >> 16) & 0xff]
- | common[6][(r >> 8) & 0xff]
- | common[7][r & 0xff];
+ setup_fp_maskl();
+ *l_out = common[0][l >> 24]
+ | common[1][(l >> 16) & 0xff]
+ | common[2][(l >> 8) & 0xff]
+ | common[3][l & 0xff]
+ | common[4][r >> 24]
+ | common[5][(r >> 16) & 0xff]
+ | common[6][(r >> 8) & 0xff]
+ | common[7][r & 0xff];
+ setup_fp_maskr();
+ *r_out = common[0][l >> 24]
+ | common[1][(l >> 16) & 0xff]
+ | common[2][(l >> 8) & 0xff]
+ | common[3][l & 0xff]
+ | common[4][r >> 24]
+ | common[5][(r >> 16) & 0xff]
+ | common[6][(r >> 8) & 0xff]
+ | common[7][r & 0xff];
#else
- *l_out = fp_maskl[0][l >> 24]
- | fp_maskl[1][(l >> 16) & 0xff]
- | fp_maskl[2][(l >> 8) & 0xff]
- | fp_maskl[3][l & 0xff]
- | fp_maskl[4][r >> 24]
- | fp_maskl[5][(r >> 16) & 0xff]
- | fp_maskl[6][(r >> 8) & 0xff]
- | fp_maskl[7][r & 0xff];
- *r_out = fp_maskr[0][l >> 24]
- | fp_maskr[1][(l >> 16) & 0xff]
- | fp_maskr[2][(l >> 8) & 0xff]
- | fp_maskr[3][l & 0xff]
- | fp_maskr[4][r >> 24]
- | fp_maskr[5][(r >> 16) & 0xff]
- | fp_maskr[6][(r >> 8) & 0xff]
- | fp_maskr[7][r & 0xff];
+ *l_out = fp_maskl[0][l >> 24]
+ | fp_maskl[1][(l >> 16) & 0xff]
+ | fp_maskl[2][(l >> 8) & 0xff]
+ | fp_maskl[3][l & 0xff]
+ | fp_maskl[4][r >> 24]
+ | fp_maskl[5][(r >> 16) & 0xff]
+ | fp_maskl[6][(r >> 8) & 0xff]
+ | fp_maskl[7][r & 0xff];
+ *r_out = fp_maskr[0][l >> 24]
+ | fp_maskr[1][(l >> 16) & 0xff]
+ | fp_maskr[2][(l >> 8) & 0xff]
+ | fp_maskr[3][l & 0xff]
+ | fp_maskr[4][r >> 24]
+ | fp_maskr[5][(r >> 16) & 0xff]
+ | fp_maskr[6][(r >> 8) & 0xff]
+ | fp_maskr[7][r & 0xff];
#endif
- return(0);
+ return (0);
}
-
#if 0
-static int
-des_cipher(const char *in, char *out, my_u_int32_t salt, int count)
+static int des_cipher(const char *in, char *out, my_u_int32_t salt, int count)
{
- my_u_int32_t l_out, r_out, rawl, rawr;
- int retval;
- union {
- my_u_int32_t *ui32;
- const char *c;
- } trans;
+ my_u_int32_t l_out, r_out, rawl, rawr;
+ int retval;
+ union {
+ my_u_int32_t *ui32;
+ const char *c;
+ } trans;
- des_init();
+ des_init();
- setup_salt(salt);
+ setup_salt(salt);
- trans.c = in;
- rawl = ntohl(*trans.ui32++);
- rawr = ntohl(*trans.ui32);
+ trans.c = in;
+ rawl = ntohl(*trans.ui32++);
+ rawr = ntohl(*trans.ui32);
- retval = do_des(rawl, rawr, &l_out, &r_out, count);
+ retval = do_des(rawl, rawr, &l_out, &r_out, count);
- trans.c = out;
- *trans.ui32++ = htonl(l_out);
- *trans.ui32 = htonl(r_out);
- return(retval);
+ trans.c = out;
+ *trans.ui32++ = htonl(l_out);
+ *trans.ui32 = htonl(r_out);
+ return (retval);
}
#endif
-
-void
-setkey(const char *key)
+void setkey(const char *key)
{
- int i, j;
- my_u_int32_t packed_keys[2];
- my_u_char_t *p;
+ int i, j;
+ my_u_int32_t packed_keys[2];
+ my_u_char_t *p;
- p = (my_u_char_t *) packed_keys;
+ p = (my_u_char_t *) packed_keys;
- for (i = 0; i < 8; i++) {
- p[i] = 0;
- for (j = 0; j < 8; j++)
- if (*key++ & 1)
- p[i] |= bits8[j];
- }
- des_setkey(p);
+ for (i = 0; i < 8; i++) {
+ p[i] = 0;
+ for (j = 0; j < 8; j++)
+ if (*key++ & 1)
+ p[i] |= bits8[j];
+ }
+ des_setkey(p);
}
-
-void
-encrypt(char *block, int flag)
+void encrypt(char *block, int flag)
{
- my_u_int32_t io[2];
- my_u_char_t *p;
- int i, j;
-
- des_init();
-
- setup_salt(0L);
- p = block;
- for (i = 0; i < 2; i++) {
- io[i] = 0L;
- for (j = 0; j < 32; j++)
- if (*p++ & 1)
- io[i] |= bits32[j];
- }
- do_des(io[0], io[1], io, io + 1, flag ? -1 : 1);
- for (i = 0; i < 2; i++)
- for (j = 0; j < 32; j++)
- block[(i << 5) | j] = (io[i] & bits32[j]) ? 1 : 0;
+ my_u_int32_t io[2];
+ my_u_char_t *p;
+ int i, j;
+
+ des_init();
+
+ setup_salt(0L);
+ p = block;
+ for (i = 0; i < 2; i++) {
+ io[i] = 0L;
+ for (j = 0; j < 32; j++)
+ if (*p++ & 1)
+ io[i] |= bits32[j];
+ }
+ do_des(io[0], io[1], io, io + 1, flag ? -1 : 1);
+ for (i = 0; i < 2; i++)
+ for (j = 0; j < 32; j++)
+ block[(i << 5) | j] = (io[i] & bits32[j]) ? 1 : 0;
}
char *crypt(const char *key, const char *setting)
{
- my_u_int32_t count, salt, l, r0, r1, keybuf[2];
- my_u_char_t *p, *q;
- static char output[21];
-
- des_init();
+ my_u_int32_t count, salt, l, r0, r1, keybuf[2];
+ my_u_char_t *p, *q;
+ static char output[21];
+
+ des_init();
+
+ /*
+ * Copy the key, shifting each character up by one bit
+ * and padding with zeros.
+ */
+ q = (my_u_char_t *) keybuf;
+ while (q - (my_u_char_t *) keybuf - 8) {
+ *q++ = *key << 1;
+ if (*(q - 1))
+ key++;
+ }
+ if (des_setkey((char *)keybuf))
+ return (NULL);
+#if 0
+ if (*setting == _PASSWORD_EFMT1) {
+ int i;
/*
- * Copy the key, shifting each character up by one bit
- * and padding with zeros.
+ * "new"-style:
+ * setting - underscore, 4 bytes of count, 4 bytes of salt
+ * key - unlimited characters
*/
- q = (my_u_char_t *)keybuf;
- while (q - (my_u_char_t *)keybuf - 8) {
- *q++ = *key << 1;
- if (*(q - 1))
- key++;
+ for (i = 1, count = 0L; i < 5; i++)
+ count |= ascii_to_bin(setting[i]) << ((i - 1) * 6);
+
+ for (i = 5, salt = 0L; i < 9; i++)
+ salt |= ascii_to_bin(setting[i]) << ((i - 5) * 6);
+
+ while (*key) {
+ /*
+ * Encrypt the key with itself.
+ */
+ if (des_cipher((char *)keybuf, (char *)keybuf, 0L, 1))
+ return (NULL);
+ /*
+ * And XOR with the next 8 characters of the key.
+ */
+ q = (my_u_char_t *) keybuf;
+ while (q - (my_u_char_t *) keybuf - 8 && *key)
+ *q++ ^= *key++ << 1;
+
+ if (des_setkey((char *)keybuf))
+ return (NULL);
}
- if (des_setkey((char *)keybuf))
- return(NULL);
+ strncpy(output, setting, 9);
-#if 0
- if (*setting == _PASSWORD_EFMT1) {
- int i;
- /*
- * "new"-style:
- * setting - underscore, 4 bytes of count, 4 bytes of salt
- * key - unlimited characters
- */
- for (i = 1, count = 0L; i < 5; i++)
- count |= ascii_to_bin(setting[i]) << ((i - 1) * 6);
-
- for (i = 5, salt = 0L; i < 9; i++)
- salt |= ascii_to_bin(setting[i]) << ((i - 5) * 6);
-
- while (*key) {
- /*
- * Encrypt the key with itself.
- */
- if (des_cipher((char *)keybuf, (char *)keybuf, 0L, 1))
- return(NULL);
- /*
- * And XOR with the next 8 characters of the key.
- */
- q = (my_u_char_t *)keybuf;
- while (q - (my_u_char_t *)keybuf - 8 && *key)
- *q++ ^= *key++ << 1;
-
- if (des_setkey((char *)keybuf))
- return(NULL);
- }
- strncpy(output, setting, 9);
-
- /*
- * Double check that we weren't given a short setting.
- * If we were, the above code will probably have created
- * wierd values for count and salt, but we don't really care.
- * Just make sure the output string doesn't have an extra
- * NUL in it.
- */
- output[9] = '\0';
- p = (my_u_char_t *)output + strlen(output);
- } else
+ /*
+ * Double check that we weren't given a short setting.
+ * If we were, the above code will probably have created
+ * wierd values for count and salt, but we don't really care.
+ * Just make sure the output string doesn't have an extra
+ * NUL in it.
+ */
+ output[9] = '\0';
+ p = (my_u_char_t *) output + strlen(output);
+ } else
#endif
- {
- /*
- * "old"-style:
- * setting - 2 bytes of salt
- * key - up to 8 characters
- */
- count = 25;
-
- salt = (ascii_to_bin(setting[1]) << 6)
- | ascii_to_bin(setting[0]);
-
- output[0] = setting[0];
- /*
- * If the encrypted password that the salt was extracted from
- * is only 1 character long, the salt will be corrupted. We
- * need to ensure that the output string doesn't have an extra
- * NUL in it!
- */
- output[1] = setting[1] ? setting[1] : output[0];
-
- p = (my_u_char_t *)output + 2;
- }
- setup_salt(salt);
+ {
/*
- * Do it.
+ * "old"-style:
+ * setting - 2 bytes of salt
+ * key - up to 8 characters
*/
- if (do_des(0L, 0L, &r0, &r1, (int)count))
- return(NULL);
+ count = 25;
+
+ salt = (ascii_to_bin(setting[1]) << 6)
+ | ascii_to_bin(setting[0]);
+
+ output[0] = setting[0];
/*
- * Now encode the result...
+ * If the encrypted password that the salt was extracted from
+ * is only 1 character long, the salt will be corrupted. We
+ * need to ensure that the output string doesn't have an extra
+ * NUL in it!
*/
- l = (r0 >> 8);
- *p++ = ascii64[(l >> 18) & 0x3f];
- *p++ = ascii64[(l >> 12) & 0x3f];
- *p++ = ascii64[(l >> 6) & 0x3f];
- *p++ = ascii64[l & 0x3f];
-
- l = (r0 << 16) | ((r1 >> 16) & 0xffff);
- *p++ = ascii64[(l >> 18) & 0x3f];
- *p++ = ascii64[(l >> 12) & 0x3f];
- *p++ = ascii64[(l >> 6) & 0x3f];
- *p++ = ascii64[l & 0x3f];
-
- l = r1 << 2;
- *p++ = ascii64[(l >> 12) & 0x3f];
- *p++ = ascii64[(l >> 6) & 0x3f];
- *p++ = ascii64[l & 0x3f];
- *p = 0;
-
- return(output);
+ output[1] = setting[1] ? setting[1] : output[0];
+
+ p = (my_u_char_t *) output + 2;
+ }
+ setup_salt(salt);
+ /*
+ * Do it.
+ */
+ if (do_des(0L, 0L, &r0, &r1, (int)count))
+ return (NULL);
+ /*
+ * Now encode the result...
+ */
+ l = (r0 >> 8);
+ *p++ = ascii64[(l >> 18) & 0x3f];
+ *p++ = ascii64[(l >> 12) & 0x3f];
+ *p++ = ascii64[(l >> 6) & 0x3f];
+ *p++ = ascii64[l & 0x3f];
+
+ l = (r0 << 16) | ((r1 >> 16) & 0xffff);
+ *p++ = ascii64[(l >> 18) & 0x3f];
+ *p++ = ascii64[(l >> 12) & 0x3f];
+ *p++ = ascii64[(l >> 6) & 0x3f];
+ *p++ = ascii64[l & 0x3f];
+
+ l = r1 << 2;
+ *p++ = ascii64[(l >> 12) & 0x3f];
+ *p++ = ascii64[(l >> 6) & 0x3f];
+ *p++ = ascii64[l & 0x3f];
+ *p = 0;
+
+ return (output);
}
projects / platform / upstream / syslinux.git / commitdiff