/**
 * Author......: See docs/credits.txt
 * License.....: MIT
 */

//#define NEW_SIMD_CODE

#ifdef KERNEL_STATIC
#include M2S(INCLUDE_PATH/inc_vendor.h)
#include M2S(INCLUDE_PATH/inc_types.h)
#include M2S(INCLUDE_PATH/inc_platform.cl)
#include M2S(INCLUDE_PATH/inc_common.cl)
#include M2S(INCLUDE_PATH/inc_simd.cl)
#include M2S(INCLUDE_PATH/inc_hash_sha1.cl)
#endif

#if   VECT_SIZE == 1
#define uint_to_hex_lower8_le(i) make_u32x (l_bin2asc[(i)])
#elif VECT_SIZE == 2
#define uint_to_hex_lower8_le(i) make_u32x (l_bin2asc[(i).s0], l_bin2asc[(i).s1])
#elif VECT_SIZE == 4
#define uint_to_hex_lower8_le(i) make_u32x (l_bin2asc[(i).s0], l_bin2asc[(i).s1], l_bin2asc[(i).s2], l_bin2asc[(i).s3])
#elif VECT_SIZE == 8
#define uint_to_hex_lower8_le(i) make_u32x (l_bin2asc[(i).s0], l_bin2asc[(i).s1], l_bin2asc[(i).s2], l_bin2asc[(i).s3], l_bin2asc[(i).s4], l_bin2asc[(i).s5], l_bin2asc[(i).s6], l_bin2asc[(i).s7])
#elif VECT_SIZE == 16
#define uint_to_hex_lower8_le(i) make_u32x (l_bin2asc[(i).s0], l_bin2asc[(i).s1], l_bin2asc[(i).s2], l_bin2asc[(i).s3], l_bin2asc[(i).s4], l_bin2asc[(i).s5], l_bin2asc[(i).s6], l_bin2asc[(i).s7], l_bin2asc[(i).s8], l_bin2asc[(i).s9], l_bin2asc[(i).sa], l_bin2asc[(i).sb], l_bin2asc[(i).sc], l_bin2asc[(i).sd], l_bin2asc[(i).se], l_bin2asc[(i).sf])
#endif

DECLSPEC void append_4 (const u32 offset, PRIVATE_AS u32 *w0, PRIVATE_AS u32 *w1, PRIVATE_AS u32 *w2, PRIVATE_AS u32 *w3, const u32 src_r0)
{
  u32 tmp[2];

  switch (offset & 3)
  {
    case  0:  tmp[0] = src_r0;
              tmp[1] = 0;
              break;
    case  1:  tmp[0] = src_r0 <<  8;
              tmp[1] = src_r0 >> 24;
              break;
    case  2:  tmp[0] = src_r0 << 16;
              tmp[1] = src_r0 >> 16;
              break;
    case  3:  tmp[0] = src_r0 << 24;
              tmp[1] = src_r0 >>  8;
              break;
  }

  switch (offset / 4)
  {
    case  0:  w0[0] |= tmp[0];
              w0[1]  = tmp[1];
              break;
    case  1:  w0[1] |= tmp[0];
              w0[2]  = tmp[1];
              break;
    case  2:  w0[2] |= tmp[0];
              w0[3]  = tmp[1];
              break;
    case  3:  w0[3] |= tmp[0];
              w1[0]  = tmp[1];
              break;
    case  4:  w1[0] |= tmp[0];
              w1[1]  = tmp[1];
              break;
    case  5:  w1[1] |= tmp[0];
              w1[2]  = tmp[1];
              break;
    case  6:  w1[2] |= tmp[0];
              w1[3]  = tmp[1];
              break;
    case  7:  w1[3] |= tmp[0];
              w2[0]  = tmp[1];
              break;
    case  8:  w2[0] |= tmp[0];
              w2[1]  = tmp[1];
              break;
    case  9:  w2[1] |= tmp[0];
              w2[2]  = tmp[1];
              break;
    case 10:  w2[2] |= tmp[0];
              w2[3]  = tmp[1];
              break;
    case 11:  w2[3] |= tmp[0];
              w3[0]  = tmp[1];
              break;
    case 12:  w3[0] |= tmp[0];
              w3[1]  = tmp[1];
              break;
    case 13:  w3[1] |= tmp[0];
              w3[2]  = tmp[1];
              break;
    case 14:  w3[2] |= tmp[0];
              w3[3]  = tmp[1];
              break;
    case 15:  w3[3] |= tmp[0];
              break;
  }
}

DECLSPEC void shift_2 (PRIVATE_AS u32 *w0, PRIVATE_AS u32 *w1, PRIVATE_AS u32 *w2, PRIVATE_AS u32 *w3)
{
  w3[3] = w3[2] >> 16 | w3[3] << 16;
  w3[2] = w3[1] >> 16 | w3[2] << 16;
  w3[1] = w3[0] >> 16 | w3[1] << 16;
  w3[0] = w2[3] >> 16 | w3[0] << 16;
  w2[3] = w2[2] >> 16 | w2[3] << 16;
  w2[2] = w2[1] >> 16 | w2[2] << 16;
  w2[1] = w2[0] >> 16 | w2[1] << 16;
  w2[0] = w1[3] >> 16 | w2[0] << 16;
  w1[3] = w1[2] >> 16 | w1[3] << 16;
  w1[2] = w1[1] >> 16 | w1[2] << 16;
  w1[1] = w1[0] >> 16 | w1[1] << 16;
  w1[0] = w0[3] >> 16 | w1[0] << 16;
  w0[3] = w0[2] >> 16 | w0[3] << 16;
  w0[2] = w0[1] >> 16 | w0[2] << 16;
  w0[1] = w0[0] >> 16 | w0[1] << 16;
  w0[0] =           0 | w0[0] << 16;
}

KERNEL_FQ KERNEL_FA void m14400_m04 (KERN_ATTR_BASIC ())
{
  /**
   * modifier
   */

  const u64 gid = get_global_id (0);
  const u64 lid = get_local_id (0);
  const u64 lsz = get_local_size (0);

  /**
   * bin2asc table
   */

  LOCAL_VK u32 l_bin2asc[256];

  for (u32 i = lid; i < 256; i += lsz)
  {
    const u32 i0 = (i >> 0) & 15;
    const u32 i1 = (i >> 4) & 15;

    l_bin2asc[i] = ((i0 < 10) ? '0' + i0 : 'a' - 10 + i0) << 0
                 | ((i1 < 10) ? '0' + i1 : 'a' - 10 + i1) << 8;
  }

  SYNC_THREADS ();

  if (gid >= GID_CNT) return;

  /**
   * base
   */

  u32 pw_buf0[4];
  u32 pw_buf1[4];

  pw_buf0[0] = pws[gid].i[0];
  pw_buf0[1] = pws[gid].i[1];
  pw_buf0[2] = pws[gid].i[2];
  pw_buf0[3] = pws[gid].i[3];
  pw_buf1[0] = pws[gid].i[4];
  pw_buf1[1] = pws[gid].i[5];
  pw_buf1[2] = pws[gid].i[6];
  pw_buf1[3] = pws[gid].i[7];

  const u32 pw_l_len = pws[gid].pw_len & 63;

  /**
   * salt
   */

  const u32 dashes = 0x2d2d2d2d;

  u32 salt_buf0[4];
  u32 salt_buf1[4];
  u32 salt_buf2[4];
  u32 salt_buf3[4];

  salt_buf0[0] = salt_bufs[SALT_POS_HOST].salt_buf[0];
  salt_buf0[1] = salt_bufs[SALT_POS_HOST].salt_buf[1];
  salt_buf0[2] = salt_bufs[SALT_POS_HOST].salt_buf[2];
  salt_buf0[3] = salt_bufs[SALT_POS_HOST].salt_buf[3];
  salt_buf1[0] = salt_bufs[SALT_POS_HOST].salt_buf[4];
  salt_buf1[1] = 0;
  salt_buf1[2] = 0;
  salt_buf1[3] = 0;
  salt_buf2[0] = 0;
  salt_buf2[1] = 0;
  salt_buf2[2] = 0;
  salt_buf2[3] = 0;
  salt_buf3[0] = 0;
  salt_buf3[1] = 0;
  salt_buf3[2] = 0;
  salt_buf3[3] = 0;

  shift_2 (salt_buf0, salt_buf1, salt_buf2, salt_buf3);

  salt_buf0[0] |= dashes >> 16;
  salt_buf1[1] |= dashes << 16;

  salt_buf0[0] = hc_swap32_S (salt_buf0[0]);
  salt_buf0[1] = hc_swap32_S (salt_buf0[1]);
  salt_buf0[2] = hc_swap32_S (salt_buf0[2]);
  salt_buf0[3] = hc_swap32_S (salt_buf0[3]);
  salt_buf1[0] = hc_swap32_S (salt_buf1[0]);
  salt_buf1[1] = hc_swap32_S (salt_buf1[1]);
  salt_buf1[2] = hc_swap32_S (salt_buf1[2]);
  salt_buf1[3] = hc_swap32_S (salt_buf1[3]);
  salt_buf2[0] = hc_swap32_S (salt_buf2[0]);
  salt_buf2[1] = hc_swap32_S (salt_buf2[1]);
  salt_buf2[2] = hc_swap32_S (salt_buf2[2]);
  salt_buf2[3] = hc_swap32_S (salt_buf2[3]);
  salt_buf3[0] = hc_swap32_S (salt_buf3[0]);
  salt_buf3[1] = hc_swap32_S (salt_buf3[1]);
  salt_buf3[2] = hc_swap32_S (salt_buf3[2]);
  salt_buf3[3] = hc_swap32_S (salt_buf3[3]);

  const u32 salt_len_orig = salt_bufs[SALT_POS_HOST].salt_len;

  const u32 salt_len_new = 2 + salt_len_orig + 2;

  /**
   * loop
   */

  for (u32 il_pos = 0; il_pos < IL_CNT; il_pos += VECT_SIZE)
  {
    const u32x pw_r_len = COMBS_PW_R_LEN (il_pos) & 63;

    const u32x pw_len = (pw_l_len + pw_r_len) & 63;

    /**
     * concat password candidate
     */

    u32x wordl0[4] = { 0 };
    u32x wordl1[4] = { 0 };
    u32x wordl2[4] = { 0 };
    u32x wordl3[4] = { 0 };

    wordl0[0] = pw_buf0[0];
    wordl0[1] = pw_buf0[1];
    wordl0[2] = pw_buf0[2];
    wordl0[3] = pw_buf0[3];
    wordl1[0] = pw_buf1[0];
    wordl1[1] = pw_buf1[1];
    wordl1[2] = pw_buf1[2];
    wordl1[3] = pw_buf1[3];

    u32x wordr0[4] = { 0 };
    u32x wordr1[4] = { 0 };
    u32x wordr2[4] = { 0 };
    u32x wordr3[4] = { 0 };

    #if ATTACK_MODE == 12
    if (COMBS_IS_MIDDLE)
    {
      // -a 12 assembles five pieces in these two register sets: mask, base word, mask, second word,
      // mask. wordl is the accumulator and wordr carries one piece at a time. The piece behind the
      // last word is left in wordr, because the OR below already folds wordr in.
      //
      // Only the second word changes length from one amplifier item to the next. Every other offset
      // is a property of the mask, so those shifts are by a scalar and cost what the shift by
      // pw_l_len costs today.

      if (COMBS_PRE_LEN > 0)
      {
        switch_buffer_by_offset_le_VV (wordl0, wordl1, wordl2, wordl3, COMBS_PRE_LEN);

        combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_PRE, wordr0, wordr1, wordr2, wordr3);

        combs_fold_VV (wordl0, wordl1, wordl2, wordl3, wordr0, wordr1, wordr2, wordr3);
      }

      u32x comb_off = COMBS_PRE_LEN + pw_l_len;

      if (COMBS_MID_LEN > 0)
      {
        combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_MID, wordr0, wordr1, wordr2, wordr3);

        switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, comb_off);

        combs_fold_VV (wordl0, wordl1, wordl2, wordl3, wordr0, wordr1, wordr2, wordr3);

        comb_off += COMBS_MID_LEN;
      }

      if (COMBS_HAS_Q > 0)
      {
        combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_WORD, wordr0, wordr1, wordr2, wordr3);

        switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, comb_off);

        combs_fold_VV (wordl0, wordl1, wordl2, wordl3, wordr0, wordr1, wordr2, wordr3);

        comb_off += pwlenx_create_combp (combs_buf, il_pos, COMBS_PIECE_WORD);
      }

      combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_POST, wordr0, wordr1, wordr2, wordr3);

      if (COMBS_POST_LEN > 0) switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, comb_off);
    }
    else
    #endif
    {
      wordr0[0] = ix_create_combt (combs_buf, il_pos, 0);
      wordr0[1] = ix_create_combt (combs_buf, il_pos, 1);
      wordr0[2] = ix_create_combt (combs_buf, il_pos, 2);
      wordr0[3] = ix_create_combt (combs_buf, il_pos, 3);
      wordr1[0] = ix_create_combt (combs_buf, il_pos, 4);
      wordr1[1] = ix_create_combt (combs_buf, il_pos, 5);
      wordr1[2] = ix_create_combt (combs_buf, il_pos, 6);
      wordr1[3] = ix_create_combt (combs_buf, il_pos, 7);

      if (COMBS_MODE == COMBINATOR_MODE_BASE_LEFT)
      {
        switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, pw_l_len);
      }
      else
      {
        switch_buffer_by_offset_le_VV (wordl0, wordl1, wordl2, wordl3, pw_r_len);
      }
    }

    u32x w0[4];
    u32x w1[4];
    u32x w2[4];
    u32x w3[4];

    w0[0] = wordl0[0] | wordr0[0];
    w0[1] = wordl0[1] | wordr0[1];
    w0[2] = wordl0[2] | wordr0[2];
    w0[3] = wordl0[3] | wordr0[3];
    w1[0] = wordl1[0] | wordr1[0];
    w1[1] = wordl1[1] | wordr1[1];
    w1[2] = wordl1[2] | wordr1[2];
    w1[3] = wordl1[3] | wordr1[3];
    w2[0] = wordl2[0] | wordr2[0];
    w2[1] = wordl2[1] | wordr2[1];
    w2[2] = wordl2[2] | wordr2[2];
    w2[3] = wordl2[3] | wordr2[3];
    w3[0] = wordl3[0] | wordr3[0];
    w3[1] = wordl3[1] | wordr3[1];
    w3[2] = wordl3[2] | wordr3[2];
    w3[3] = wordl3[3] | wordr3[3];

    /**
     * sha1
     */

    append_4 (pw_len, w0, w1, w2, w3, dashes);

    shift_2 (w0, w1, w2, w3);

    w0[0] |= dashes >> 16;

    const u32x pw_len_new = 2 + pw_len + 4;

    append_0x80_4x4_VV (w0, w1, w2, w3, pw_len_new);

    w0[0] = hc_swap32 (w0[0]);
    w0[1] = hc_swap32 (w0[1]);
    w0[2] = hc_swap32 (w0[2]);
    w0[3] = hc_swap32 (w0[3]);
    w1[0] = hc_swap32 (w1[0]);
    w1[1] = hc_swap32 (w1[1]);
    w1[2] = hc_swap32 (w1[2]);
    w1[3] = hc_swap32 (w1[3]);
    w2[0] = 0;
    w2[1] = 0;
    w2[2] = 0;
    w2[3] = 0;
    w3[0] = 0;
    w3[1] = 0;
    w3[2] = 0;
    w3[3] = 0;

    /**
     * prepend salt
     */

    const u32x out_salt_len = salt_len_new + pw_len_new;

    u32x t0[4];
    u32x t1[4];
    u32x t2[4];
    u32x t3[4];

    t0[0] = salt_buf0[0];
    t0[1] = salt_buf0[1];
    t0[2] = salt_buf0[2];
    t0[3] = salt_buf0[3];
    t1[0] = salt_buf1[0];
    t1[1] = salt_buf1[1];
    t1[2] = w0[0];
    t1[3] = w0[1];
    t2[0] = w0[2];
    t2[1] = w0[3];
    t2[2] = w1[0];
    t2[3] = w1[1];
    t3[0] = w1[2];
    t3[1] = w1[3];
    t3[2] = 0;
    t3[3] = out_salt_len * 8;

    /**
     * sha1
     */

    u32x digest[5];

    digest[0] = SHA1M_A;
    digest[1] = SHA1M_B;
    digest[2] = SHA1M_C;
    digest[3] = SHA1M_D;
    digest[4] = SHA1M_E;

    sha1_transform_vector (t0, t1, t2, t3, digest);

    for (int i = 1; i < 10; i++)
    {
      u32 s[10];

      s[0] = uint_to_hex_lower8_le ((digest[0] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[0] >> 24) & 255) << 16;
      s[1] = uint_to_hex_lower8_le ((digest[0] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[0] >>  8) & 255) << 16;
      s[2] = uint_to_hex_lower8_le ((digest[1] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[1] >> 24) & 255) << 16;
      s[3] = uint_to_hex_lower8_le ((digest[1] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[1] >>  8) & 255) << 16;
      s[4] = uint_to_hex_lower8_le ((digest[2] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[2] >> 24) & 255) << 16;
      s[5] = uint_to_hex_lower8_le ((digest[2] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[2] >>  8) & 255) << 16;
      s[6] = uint_to_hex_lower8_le ((digest[3] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[3] >> 24) & 255) << 16;
      s[7] = uint_to_hex_lower8_le ((digest[3] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[3] >>  8) & 255) << 16;
      s[8] = uint_to_hex_lower8_le ((digest[4] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[4] >> 24) & 255) << 16;
      s[9] = uint_to_hex_lower8_le ((digest[4] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[4] >>  8) & 255) << 16;

      t0[0] = salt_buf0[0];
      t0[1] = salt_buf0[1];
      t0[2] = salt_buf0[2];
      t0[3] = salt_buf0[3];
      t1[0] = salt_buf1[0];
      t1[1] = salt_buf1[1];
      t1[2] = s[0];
      t1[3] = s[1];
      t2[0] = s[2];
      t2[1] = s[3];
      t2[2] = s[4];
      t2[3] = s[5];
      t3[0] = s[6];
      t3[1] = s[7];
      t3[2] = s[8];
      t3[3] = s[9];

      digest[0] = SHA1M_A;
      digest[1] = SHA1M_B;
      digest[2] = SHA1M_C;
      digest[3] = SHA1M_D;
      digest[4] = SHA1M_E;

      sha1_transform_vector (t0, t1, t2, t3, digest);

      t0[0] = w0[0];
      t0[1] = w0[1];
      t0[2] = w0[2];
      t0[3] = w0[3];
      t1[0] = w1[0];
      t1[1] = w1[1];
      t1[2] = w1[2];
      t1[3] = w1[3];
      t2[0] = 0;
      t2[1] = 0;
      t2[2] = 0;
      t2[3] = 0;
      t3[0] = 0;
      t3[1] = 0;
      t3[2] = 0;
      t3[3] = (salt_len_new + 40 + pw_len_new) * 8;

      sha1_transform_vector (t0, t1, t2, t3, digest);
    }

    const u32x a = digest[0];
    const u32x b = digest[1];
    const u32x c = digest[2];
    const u32x d = digest[3];
    const u32x e = digest[4];

    COMPARE_M_SIMD (d, e, c, b);
  }
}

KERNEL_FQ KERNEL_FA void m14400_m08 (KERN_ATTR_BASIC ())
{
}

KERNEL_FQ KERNEL_FA void m14400_m16 (KERN_ATTR_BASIC ())
{
}

KERNEL_FQ KERNEL_FA void m14400_s04 (KERN_ATTR_BASIC ())
{
  /**
   * modifier
   */

  const u64 gid = get_global_id (0);
  const u64 lid = get_local_id (0);
  const u64 lsz = get_local_size (0);

  /**
   * bin2asc table
   */

  LOCAL_VK u32 l_bin2asc[256];

  for (u32 i = lid; i < 256; i += lsz)
  {
    const u32 i0 = (i >> 0) & 15;
    const u32 i1 = (i >> 4) & 15;

    l_bin2asc[i] = ((i0 < 10) ? '0' + i0 : 'a' - 10 + i0) << 0
                 | ((i1 < 10) ? '0' + i1 : 'a' - 10 + i1) << 8;
  }

  SYNC_THREADS ();

  if (gid >= GID_CNT) return;

  /**
   * base
   */

  u32 pw_buf0[4];
  u32 pw_buf1[4];

  pw_buf0[0] = pws[gid].i[0];
  pw_buf0[1] = pws[gid].i[1];
  pw_buf0[2] = pws[gid].i[2];
  pw_buf0[3] = pws[gid].i[3];
  pw_buf1[0] = pws[gid].i[4];
  pw_buf1[1] = pws[gid].i[5];
  pw_buf1[2] = pws[gid].i[6];
  pw_buf1[3] = pws[gid].i[7];

  const u32 pw_l_len = pws[gid].pw_len & 63;

  /**
   * salt
   */

  const u32 dashes = 0x2d2d2d2d;

  u32 salt_buf0[4];
  u32 salt_buf1[4];
  u32 salt_buf2[4];
  u32 salt_buf3[4];

  salt_buf0[0] = salt_bufs[SALT_POS_HOST].salt_buf[0];
  salt_buf0[1] = salt_bufs[SALT_POS_HOST].salt_buf[1];
  salt_buf0[2] = salt_bufs[SALT_POS_HOST].salt_buf[2];
  salt_buf0[3] = salt_bufs[SALT_POS_HOST].salt_buf[3];
  salt_buf1[0] = salt_bufs[SALT_POS_HOST].salt_buf[4];
  salt_buf1[1] = 0;
  salt_buf1[2] = 0;
  salt_buf1[3] = 0;
  salt_buf2[0] = 0;
  salt_buf2[1] = 0;
  salt_buf2[2] = 0;
  salt_buf2[3] = 0;
  salt_buf3[0] = 0;
  salt_buf3[1] = 0;
  salt_buf3[2] = 0;
  salt_buf3[3] = 0;

  shift_2 (salt_buf0, salt_buf1, salt_buf2, salt_buf3);

  salt_buf0[0] |= dashes >> 16;
  salt_buf1[1] |= dashes << 16;

  salt_buf0[0] = hc_swap32_S (salt_buf0[0]);
  salt_buf0[1] = hc_swap32_S (salt_buf0[1]);
  salt_buf0[2] = hc_swap32_S (salt_buf0[2]);
  salt_buf0[3] = hc_swap32_S (salt_buf0[3]);
  salt_buf1[0] = hc_swap32_S (salt_buf1[0]);
  salt_buf1[1] = hc_swap32_S (salt_buf1[1]);
  salt_buf1[2] = hc_swap32_S (salt_buf1[2]);
  salt_buf1[3] = hc_swap32_S (salt_buf1[3]);
  salt_buf2[0] = hc_swap32_S (salt_buf2[0]);
  salt_buf2[1] = hc_swap32_S (salt_buf2[1]);
  salt_buf2[2] = hc_swap32_S (salt_buf2[2]);
  salt_buf2[3] = hc_swap32_S (salt_buf2[3]);
  salt_buf3[0] = hc_swap32_S (salt_buf3[0]);
  salt_buf3[1] = hc_swap32_S (salt_buf3[1]);
  salt_buf3[2] = hc_swap32_S (salt_buf3[2]);
  salt_buf3[3] = hc_swap32_S (salt_buf3[3]);

  const u32 salt_len_orig = salt_bufs[SALT_POS_HOST].salt_len;

  const u32 salt_len_new = 2 + salt_len_orig + 2;

  /**
   * digest
   */

  const u32 search[4] =
  {
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R0],
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R1],
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R2],
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R3]
  };

  /**
   * loop
   */

  for (u32 il_pos = 0; il_pos < IL_CNT; il_pos += VECT_SIZE)
  {
    const u32x pw_r_len = COMBS_PW_R_LEN (il_pos) & 63;

    const u32x pw_len = (pw_l_len + pw_r_len) & 63;

    /**
     * concat password candidate
     */

    u32x wordl0[4] = { 0 };
    u32x wordl1[4] = { 0 };
    u32x wordl2[4] = { 0 };
    u32x wordl3[4] = { 0 };

    wordl0[0] = pw_buf0[0];
    wordl0[1] = pw_buf0[1];
    wordl0[2] = pw_buf0[2];
    wordl0[3] = pw_buf0[3];
    wordl1[0] = pw_buf1[0];
    wordl1[1] = pw_buf1[1];
    wordl1[2] = pw_buf1[2];
    wordl1[3] = pw_buf1[3];

    u32x wordr0[4] = { 0 };
    u32x wordr1[4] = { 0 };
    u32x wordr2[4] = { 0 };
    u32x wordr3[4] = { 0 };

    #if ATTACK_MODE == 12
    if (COMBS_IS_MIDDLE)
    {
      // -a 12 assembles five pieces in these two register sets: mask, base word, mask, second word,
      // mask. wordl is the accumulator and wordr carries one piece at a time. The piece behind the
      // last word is left in wordr, because the OR below already folds wordr in.
      //
      // Only the second word changes length from one amplifier item to the next. Every other offset
      // is a property of the mask, so those shifts are by a scalar and cost what the shift by
      // pw_l_len costs today.

      if (COMBS_PRE_LEN > 0)
      {
        switch_buffer_by_offset_le_VV (wordl0, wordl1, wordl2, wordl3, COMBS_PRE_LEN);

        combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_PRE, wordr0, wordr1, wordr2, wordr3);

        combs_fold_VV (wordl0, wordl1, wordl2, wordl3, wordr0, wordr1, wordr2, wordr3);
      }

      u32x comb_off = COMBS_PRE_LEN + pw_l_len;

      if (COMBS_MID_LEN > 0)
      {
        combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_MID, wordr0, wordr1, wordr2, wordr3);

        switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, comb_off);

        combs_fold_VV (wordl0, wordl1, wordl2, wordl3, wordr0, wordr1, wordr2, wordr3);

        comb_off += COMBS_MID_LEN;
      }

      if (COMBS_HAS_Q > 0)
      {
        combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_WORD, wordr0, wordr1, wordr2, wordr3);

        switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, comb_off);

        combs_fold_VV (wordl0, wordl1, wordl2, wordl3, wordr0, wordr1, wordr2, wordr3);

        comb_off += pwlenx_create_combp (combs_buf, il_pos, COMBS_PIECE_WORD);
      }

      combs_piece8_VV (combs_buf, il_pos, COMBS_PIECE_POST, wordr0, wordr1, wordr2, wordr3);

      if (COMBS_POST_LEN > 0) switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, comb_off);
    }
    else
    #endif
    {
      wordr0[0] = ix_create_combt (combs_buf, il_pos, 0);
      wordr0[1] = ix_create_combt (combs_buf, il_pos, 1);
      wordr0[2] = ix_create_combt (combs_buf, il_pos, 2);
      wordr0[3] = ix_create_combt (combs_buf, il_pos, 3);
      wordr1[0] = ix_create_combt (combs_buf, il_pos, 4);
      wordr1[1] = ix_create_combt (combs_buf, il_pos, 5);
      wordr1[2] = ix_create_combt (combs_buf, il_pos, 6);
      wordr1[3] = ix_create_combt (combs_buf, il_pos, 7);

      if (COMBS_MODE == COMBINATOR_MODE_BASE_LEFT)
      {
        switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, pw_l_len);
      }
      else
      {
        switch_buffer_by_offset_le_VV (wordl0, wordl1, wordl2, wordl3, pw_r_len);
      }
    }

    u32x w0[4];
    u32x w1[4];
    u32x w2[4];
    u32x w3[4];

    w0[0] = wordl0[0] | wordr0[0];
    w0[1] = wordl0[1] | wordr0[1];
    w0[2] = wordl0[2] | wordr0[2];
    w0[3] = wordl0[3] | wordr0[3];
    w1[0] = wordl1[0] | wordr1[0];
    w1[1] = wordl1[1] | wordr1[1];
    w1[2] = wordl1[2] | wordr1[2];
    w1[3] = wordl1[3] | wordr1[3];
    w2[0] = wordl2[0] | wordr2[0];
    w2[1] = wordl2[1] | wordr2[1];
    w2[2] = wordl2[2] | wordr2[2];
    w2[3] = wordl2[3] | wordr2[3];
    w3[0] = wordl3[0] | wordr3[0];
    w3[1] = wordl3[1] | wordr3[1];
    w3[2] = wordl3[2] | wordr3[2];
    w3[3] = wordl3[3] | wordr3[3];

    /**
     * sha1
     */

    append_4 (pw_len, w0, w1, w2, w3, dashes);

    shift_2 (w0, w1, w2, w3);

    w0[0] |= dashes >> 16;

    const u32x pw_len_new = 2 + pw_len + 4;

    append_0x80_4x4_VV (w0, w1, w2, w3, pw_len_new);

    w0[0] = hc_swap32 (w0[0]);
    w0[1] = hc_swap32 (w0[1]);
    w0[2] = hc_swap32 (w0[2]);
    w0[3] = hc_swap32 (w0[3]);
    w1[0] = hc_swap32 (w1[0]);
    w1[1] = hc_swap32 (w1[1]);
    w1[2] = hc_swap32 (w1[2]);
    w1[3] = hc_swap32 (w1[3]);
    w2[0] = 0;
    w2[1] = 0;
    w2[2] = 0;
    w2[3] = 0;
    w3[0] = 0;
    w3[1] = 0;
    w3[2] = 0;
    w3[3] = 0;

    /**
     * prepend salt
     */

    const u32x out_salt_len = salt_len_new + pw_len_new;

    u32x t0[4];
    u32x t1[4];
    u32x t2[4];
    u32x t3[4];

    t0[0] = salt_buf0[0];
    t0[1] = salt_buf0[1];
    t0[2] = salt_buf0[2];
    t0[3] = salt_buf0[3];
    t1[0] = salt_buf1[0];
    t1[1] = salt_buf1[1];
    t1[2] = w0[0];
    t1[3] = w0[1];
    t2[0] = w0[2];
    t2[1] = w0[3];
    t2[2] = w1[0];
    t2[3] = w1[1];
    t3[0] = w1[2];
    t3[1] = w1[3];
    t3[2] = 0;
    t3[3] = out_salt_len * 8;

    /**
     * sha1
     */

    u32x digest[5];

    digest[0] = SHA1M_A;
    digest[1] = SHA1M_B;
    digest[2] = SHA1M_C;
    digest[3] = SHA1M_D;
    digest[4] = SHA1M_E;

    sha1_transform_vector (t0, t1, t2, t3, digest);

    for (int i = 1; i < 10; i++)
    {
      u32 s[10];

      s[0] = uint_to_hex_lower8_le ((digest[0] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[0] >> 24) & 255) << 16;
      s[1] = uint_to_hex_lower8_le ((digest[0] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[0] >>  8) & 255) << 16;
      s[2] = uint_to_hex_lower8_le ((digest[1] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[1] >> 24) & 255) << 16;
      s[3] = uint_to_hex_lower8_le ((digest[1] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[1] >>  8) & 255) << 16;
      s[4] = uint_to_hex_lower8_le ((digest[2] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[2] >> 24) & 255) << 16;
      s[5] = uint_to_hex_lower8_le ((digest[2] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[2] >>  8) & 255) << 16;
      s[6] = uint_to_hex_lower8_le ((digest[3] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[3] >> 24) & 255) << 16;
      s[7] = uint_to_hex_lower8_le ((digest[3] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[3] >>  8) & 255) << 16;
      s[8] = uint_to_hex_lower8_le ((digest[4] >> 16) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[4] >> 24) & 255) << 16;
      s[9] = uint_to_hex_lower8_le ((digest[4] >>  0) & 255) <<  0
           | uint_to_hex_lower8_le ((digest[4] >>  8) & 255) << 16;

      t0[0] = salt_buf0[0];
      t0[1] = salt_buf0[1];
      t0[2] = salt_buf0[2];
      t0[3] = salt_buf0[3];
      t1[0] = salt_buf1[0];
      t1[1] = salt_buf1[1];
      t1[2] = s[0];
      t1[3] = s[1];
      t2[0] = s[2];
      t2[1] = s[3];
      t2[2] = s[4];
      t2[3] = s[5];
      t3[0] = s[6];
      t3[1] = s[7];
      t3[2] = s[8];
      t3[3] = s[9];

      digest[0] = SHA1M_A;
      digest[1] = SHA1M_B;
      digest[2] = SHA1M_C;
      digest[3] = SHA1M_D;
      digest[4] = SHA1M_E;

      sha1_transform_vector (t0, t1, t2, t3, digest);

      t0[0] = w0[0];
      t0[1] = w0[1];
      t0[2] = w0[2];
      t0[3] = w0[3];
      t1[0] = w1[0];
      t1[1] = w1[1];
      t1[2] = w1[2];
      t1[3] = w1[3];
      t2[0] = 0;
      t2[1] = 0;
      t2[2] = 0;
      t2[3] = 0;
      t3[0] = 0;
      t3[1] = 0;
      t3[2] = 0;
      t3[3] = (salt_len_new + 40 + pw_len_new) * 8;

      sha1_transform_vector (t0, t1, t2, t3, digest);
    }

    const u32x a = digest[0];
    const u32x b = digest[1];
    const u32x c = digest[2];
    const u32x d = digest[3];
    const u32x e = digest[4];

    COMPARE_S_SIMD (d, e, c, b);
  }
}

KERNEL_FQ KERNEL_FA void m14400_s08 (KERN_ATTR_BASIC ())
{
}

KERNEL_FQ KERNEL_FA void m14400_s16 (KERN_ATTR_BASIC ())
{
}
