crypt-des.c File Reference

#include "postgres.h"
#include "miscadmin.h"
#include "port/pg_bswap.h"
#include "px-crypt.h"

Include dependency graph for crypt-des.c:

Go to the source code of this file.

Macros
#define	_PASSWORD_EFMT1   '_'

Functions
static int	ascii_to_bin (char ch)
static void	des_init (void)
static void	setup_salt (long salt)
static int	des_setkey (const char *key)
static int	do_des (uint32 l_in, uint32 r_in, uint32 *l_out, uint32 *r_out, int count)
static int	des_cipher (const char *in, char *out, long salt, int count)
char *	px_crypt_des (const char *key, const char *setting)

Variables
static const char	_crypt_a64 []
static uint8	IP [64]
static uint8	inv_key_perm [64]
static uint8	u_key_perm [56]
static uint8	key_perm [56]
static uint8	key_shifts [16]
static uint8	inv_comp_perm [56]
static uint8	comp_perm [48]
static uint8	u_sbox [8][64]
static uint8	sbox [8][64]
static uint8	un_pbox [32]
static uint8	pbox [32]
static uint32	_crypt_bits32 [32]
static uint8	_crypt_bits8 [8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01}
static uint32	saltbits
static long	old_salt
static uint32 *	bits28
static uint32 *	bits24
static uint8	init_perm [64]
static uint8	final_perm [64]
static uint32	en_keysl [16]
static uint32	en_keysr [16]
static uint32	de_keysl [16]
static uint32	de_keysr [16]
static int	des_initialised = 0
static uint8	m_sbox [4][4096]
static uint32	psbox [4][256]
static uint32	ip_maskl [8][256]
static uint32	ip_maskr [8][256]
static uint32	fp_maskl [8][256]
static uint32	fp_maskr [8][256]
static uint32	key_perm_maskl [8][128]
static uint32	key_perm_maskr [8][128]
static uint32	comp_maskl [8][128]
static uint32	comp_maskr [8][128]
static uint32	old_rawkey0
static uint32	old_rawkey1

Macro Definition Documentation

_PASSWORD_EFMT1

#define _PASSWORD_EFMT1   '_'

Definition at line 69 of file crypt-des.c.

Function Documentation

ascii_to_bin()

static int ascii_to_bin ( char  ch )

inlinestatic

Definition at line 203 of file crypt-des.c.

{
    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;
}

Referenced by px_crypt_des().

des_cipher()

static int des_cipher ( const char *  in, char *  out, long  salt, int  count  )

static

Definition at line 617 of file crypt-des.c.

{
    uint32      buffer[2];
    uint32      l_out,
                r_out,
                rawl,
                rawr;
    int         retval;
 
    if (!des_initialised)
        des_init();
 
    setup_salt(salt);
 
    /* copy data to avoid assuming input is word-aligned */
    memcpy(buffer, in, sizeof(buffer));
 
    rawl = pg_ntoh32(buffer[0]);
    rawr = pg_ntoh32(buffer[1]);
 
    retval = do_des(rawl, rawr, &l_out, &r_out, count);
    if (retval)
        return retval;
 
    buffer[0] = pg_hton32(l_out);
    buffer[1] = pg_hton32(r_out);
 
    /* copy data to avoid assuming output is word-aligned */
    memcpy(out, buffer, sizeof(buffer));
 
    return retval;
}

References des_init(), des_initialised, do_des(), pg_hton32, pg_ntoh32, and setup_salt().

Referenced by px_crypt_des().

des_init()

static void des_init ( void  )

static

Definition at line 221 of file crypt-des.c.

{
    int         i,
                j,
                b,
                k,
                inbit,
                obit;
    uint32     *p,
               *il,
               *ir,
               *fl,
               *fr;
 
    old_rawkey0 = old_rawkey1 = 0L;
    saltbits = 0L;
    old_salt = 0L;
    bits24 = (bits28 = _crypt_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] =
                    (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] = i;
        inv_key_perm[i] = 255;
    }
 
    /*
     * Invert the key permutation and initialise the inverted key compression
     * permutation.
     */
    for (i = 0; i < 56; i++)
    {
        u_key_perm[i] = key_perm[i] - 1;
        inv_key_perm[key_perm[i] - 1] = i;
        inv_comp_perm[i] = 255;
    }
 
    /*
     * Invert the key compression permutation.
     */
    for (i = 0; i < 48; i++)
        inv_comp_perm[comp_perm[i] - 1] = i;
 
    /*
     * Set up the OR-mask arrays for the initial and final permutations, and
     * for the key initial and compression permutations.
     */
    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 & _crypt_bits8[j])
                {
                    if ((obit = init_perm[inbit]) < 32)
                        *il |= _crypt_bits32[obit];
                    else
                        *ir |= _crypt_bits32[obit - 32];
                    if ((obit = final_perm[inbit]) < 32)
                        *fl |= _crypt_bits32[obit];
                    else
                        *fr |= _crypt_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 & _crypt_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 & _crypt_bits8[j + 1])
                {
                    if ((obit = inv_comp_perm[inbit]) == 255)
                        continue;
                    if (obit < 24)
                        *il |= bits24[obit];
                    else
                        *ir |= bits24[obit - 24];
                }
            }
        }
    }
 
    /*
     * 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] = i;
 
    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 & _crypt_bits8[j])
                    *p |= _crypt_bits32[un_pbox[8 * b + j]];
            }
        }
 
    des_initialised = 1;
}

References _crypt_bits32, _crypt_bits8, b, bits24, bits28, comp_maskl, comp_maskr, comp_perm, des_initialised, final_perm, fp_maskl, fp_maskr, i, init_perm, inv_comp_perm, inv_key_perm, IP, ip_maskl, ip_maskr, j, key_perm, key_perm_maskl, key_perm_maskr, m_sbox, old_rawkey0, old_rawkey1, old_salt, pbox, psbox, saltbits, sbox, u_key_perm, u_sbox, and un_pbox.

Referenced by des_cipher(), des_setkey(), and px_crypt_des().

des_setkey()

static int des_setkey ( const char *  key )

static

Definition at line 396 of file crypt-des.c.

{
    uint32      k0,
                k1,
                rawkey0,
                rawkey1;
    int         shifts,
                round;
 
    if (!des_initialised)
        des_init();
 
    rawkey0 = pg_ntoh32(*(const uint32 *) key);
    rawkey1 = pg_ntoh32(*(const uint32 *) (key + 4));
 
    if ((rawkey0 | rawkey1)
        && rawkey0 == old_rawkey0
        && rawkey1 == old_rawkey1)
    {
        /*
         * Already setup for this key. This optimization 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.
     */
    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];
 
    /*
     * Rotate subkeys and do compression permutation.
     */
    shifts = 0;
    for (round = 0; round < 16; round++)
    {
        uint32      t0,
                    t1;
 
        shifts += key_shifts[round];
 
        t0 = (k0 << shifts) | (k0 >> (28 - shifts));
        t1 = (k1 << shifts) | (k1 >> (28 - shifts));
 
        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];
    }
    return 0;
}

References comp_maskl, comp_maskr, de_keysl, de_keysr, des_init(), des_initialised, en_keysl, en_keysr, sort-test::key, key_perm_maskl, key_perm_maskr, key_shifts, old_rawkey0, old_rawkey1, and pg_ntoh32.

Referenced by px_crypt_des().

do_des()

static int do_des ( uint32  l_in, uint32  r_in, uint32 *  l_out, uint32 *  r_out, int  count  )

static

Definition at line 483 of file crypt-des.c.

{
    /*
     * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format.
     */
    uint32      l,
                r,
               *kl,
               *kr,
               *kl1,
               *kr1;
    uint32      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;
    }
 
    /*
     * Do initial permutation (IP).
     */
    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];
 
    while (count--)
    {
        CHECK_FOR_INTERRUPTS();
 
        /*
         * 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.
             */
            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]];
 
            /*
             * Now that we've permuted things, complete f().
             */
            f ^= l;
            l = r;
            r = f;
        }
        r = l;
        l = f;
    }
 
    /*
     * Do final permutation (inverse of IP).
     */
    *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];
    return 0;
}

References CHECK_FOR_INTERRUPTS, de_keysl, de_keysr, en_keysl, en_keysr, fp_maskl, fp_maskr, ip_maskl, ip_maskr, m_sbox, psbox, and saltbits.

Referenced by des_cipher(), and px_crypt_des().

px_crypt_des()

char * px_crypt_des	(	const char *	key,
		const char *	setting
	)

Definition at line 651 of file crypt-des.c.

{
    int         i;
    uint32      count,
                salt,
                l,
                r0,
                r1,
                keybuf[2];
    char       *p;
    uint8      *q;
    static char output[21];
 
    if (!des_initialised)
        des_init();
 
 
    /*
     * Copy the key, shifting each character up by one bit and padding with
     * zeros.
     */
    q = (uint8 *) keybuf;
    while (q - (uint8 *) keybuf - 8)
    {
        *q++ = *key << 1;
        if (*key != '\0')
            key++;
    }
    if (des_setkey((char *) keybuf))
        return NULL;
 
#ifndef DISABLE_XDES
    if (*setting == _PASSWORD_EFMT1)
    {
        /*
         * "new"-style: setting must be a 9-character (underscore, then 4
         * bytes of count, then 4 bytes of salt) string. See CRYPT(3) under
         * the "Extended crypt" heading for further details.
         *
         * Unlimited characters of the input key are used. This is known as
         * the "Extended crypt" DES method.
         *
         */
        if (strlen(setting) < 9)
            ereport(ERROR,
                    (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("invalid salt")));
 
        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 = (uint8 *) keybuf;
            while (q - (uint8 *) keybuf - 8 && *key)
                *q++ ^= *key++ << 1;
 
            if (des_setkey((char *) keybuf))
                return NULL;
        }
        strlcpy(output, setting, 10);
 
        /*
         * Double check that we weren't given a short setting. If we were, the
         * above code will probably have created weird 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.
         */
        p = output + strlen(output);
    }
    else
#endif                          /* !DISABLE_XDES */
    {
        /*
         * "old"-style: setting - 2 bytes of salt key - only up to the first 8
         * characters of the input key are used.
         */
        count = 25;
 
        if (strlen(setting) < 2)
            ereport(ERROR,
                    (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("invalid salt")));
 
        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 = output + 2;
    }
    setup_salt(salt);
 
    /*
     * Do it.
     */
    if (do_des(0L, 0L, &r0, &r1, count))
        return NULL;
 
    /*
     * Now encode the result...
     */
    l = (r0 >> 8);
    *p++ = _crypt_a64[(l >> 18) & 0x3f];
    *p++ = _crypt_a64[(l >> 12) & 0x3f];
    *p++ = _crypt_a64[(l >> 6) & 0x3f];
    *p++ = _crypt_a64[l & 0x3f];
 
    l = (r0 << 16) | ((r1 >> 16) & 0xffff);
    *p++ = _crypt_a64[(l >> 18) & 0x3f];
    *p++ = _crypt_a64[(l >> 12) & 0x3f];
    *p++ = _crypt_a64[(l >> 6) & 0x3f];
    *p++ = _crypt_a64[l & 0x3f];
 
    l = r1 << 2;
    *p++ = _crypt_a64[(l >> 12) & 0x3f];
    *p++ = _crypt_a64[(l >> 6) & 0x3f];
    *p++ = _crypt_a64[l & 0x3f];
    *p = 0;
 
    return output;
}

References _crypt_a64, _PASSWORD_EFMT1, ascii_to_bin(), des_cipher(), des_init(), des_initialised, des_setkey(), do_des(), ereport, errcode(), errmsg(), ERROR, i, sort-test::key, output, setup_salt(), and strlcpy().

Referenced by run_crypt_des().

setup_salt()

static void setup_salt ( long  salt )

static

Definition at line 373 of file crypt-des.c.

{
    uint32      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;
    }
}

References i, old_salt, and saltbits.

Referenced by des_cipher(), and px_crypt_des().

Variable Documentation

_crypt_a64

const char _crypt_a64[]

static

Initial value:

=
"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"

Definition at line 71 of file crypt-des.c.

Referenced by px_crypt_des().

_crypt_bits32

uint32 _crypt_bits32[32]

static

Initial value:

=
{
    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
}

Definition at line 164 of file crypt-des.c.

Referenced by des_init().

_crypt_bits8

uint8 _crypt_bits8[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01}

static

Definition at line 176 of file crypt-des.c.

Referenced by des_init().

bits24

uint32 * bits24

static

Definition at line 181 of file crypt-des.c.

Referenced by des_init().

bits28

uint32* bits28

static

Definition at line 180 of file crypt-des.c.

Referenced by des_init().

comp_maskl

uint32 comp_maskl[8][128]

static

Definition at line 197 of file crypt-des.c.

Referenced by des_init(), and des_setkey().

comp_maskr

uint32 comp_maskr[8][128]

static

Definition at line 198 of file crypt-des.c.

Referenced by des_init(), and des_setkey().

comp_perm

uint8 comp_perm[48]

static

Initial value:

= {
    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
}

Definition at line 95 of file crypt-des.c.

Referenced by des_init().

de_keysl

uint32 de_keysl[16]

static

Definition at line 186 of file crypt-des.c.

Referenced by des_setkey(), and do_des().

de_keysr

uint32 de_keysr[16]

static

Definition at line 187 of file crypt-des.c.

Referenced by des_setkey(), and do_des().

des_initialised

int des_initialised = 0

static

Definition at line 188 of file crypt-des.c.

Referenced by des_cipher(), des_init(), des_setkey(), and px_crypt_des().

en_keysl

uint32 en_keysl[16]

static

Definition at line 184 of file crypt-des.c.

Referenced by des_setkey(), and do_des().

en_keysr

uint32 en_keysr[16]

static

Definition at line 185 of file crypt-des.c.

Referenced by des_setkey(), and do_des().

final_perm

uint8 final_perm[64]

static

Definition at line 183 of file crypt-des.c.

Referenced by des_init().

fp_maskl

uint32 fp_maskl[8][256]

static

Definition at line 193 of file crypt-des.c.

Referenced by des_init(), and do_des().

fp_maskr

uint32 fp_maskr[8][256]

static

Definition at line 194 of file crypt-des.c.

Referenced by des_init(), and do_des().

init_perm

uint8 init_perm[64]

static

Definition at line 182 of file crypt-des.c.

Referenced by des_init().

inv_comp_perm

uint8 inv_comp_perm[56]

static

Definition at line 94 of file crypt-des.c.

Referenced by des_init().

inv_key_perm

uint8 inv_key_perm[64]

static

Definition at line 81 of file crypt-des.c.

Referenced by des_init().

IP

uint8 IP[64]

static

Initial value:

= {
    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
}

Definition at line 74 of file crypt-des.c.

Referenced by base_yylex_location(), and des_init().

ip_maskl

uint32 ip_maskl[8][256]

static

Definition at line 191 of file crypt-des.c.

Referenced by des_init(), and do_des().

ip_maskr

uint32 ip_maskr[8][256]

static

Definition at line 192 of file crypt-des.c.

Referenced by des_init(), and do_des().

key_perm

uint8 key_perm[56]

static

Initial value:

= {
    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
}

Definition at line 83 of file crypt-des.c.

Referenced by des_init().

key_perm_maskl

uint32 key_perm_maskl[8][128]

static

Definition at line 195 of file crypt-des.c.

Referenced by des_init(), and des_setkey().

key_perm_maskr

uint32 key_perm_maskr[8][128]

static

Definition at line 196 of file crypt-des.c.

Referenced by des_init(), and des_setkey().

key_shifts

uint8 key_shifts[16]

static

Initial value:

= {
    1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
}

Definition at line 90 of file crypt-des.c.

Referenced by des_setkey().

m_sbox

uint8 m_sbox[4][4096]

static

Definition at line 189 of file crypt-des.c.

Referenced by des_init(), and do_des().

old_rawkey0

uint32 old_rawkey0

static

Definition at line 199 of file crypt-des.c.

Referenced by des_init(), and des_setkey().

old_rawkey1

uint32 old_rawkey1

static

Definition at line 200 of file crypt-des.c.

Referenced by des_init(), and des_setkey().

old_salt

long old_salt

static

Definition at line 179 of file crypt-des.c.

Referenced by des_init(), and setup_salt().

pbox

uint8 pbox[32]

static

Initial value:

= {
    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
}

Definition at line 159 of file crypt-des.c.

Referenced by des_init().

psbox

uint32 psbox[4][256]

static

Definition at line 190 of file crypt-des.c.

Referenced by des_init(), and do_des().

saltbits

uint32 saltbits

static

Definition at line 178 of file crypt-des.c.

Referenced by des_init(), do_des(), and setup_salt().

sbox

uint8 sbox[8][64]

static

Definition at line 107 of file crypt-des.c.

Referenced by des_init().

u_key_perm

uint8 u_key_perm[56]

static

Definition at line 82 of file crypt-des.c.

Referenced by des_init().

u_sbox

uint8 u_sbox[8][64]

static

Definition at line 106 of file crypt-des.c.

Referenced by des_init().

un_pbox

uint8 un_pbox[32]

static

Definition at line 158 of file crypt-des.c.

Referenced by des_init().