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

//#define NEW_SIMD_CODE

#ifdef KERNEL_STATIC
#include "inc_vendor.h"
#include "inc_types.h"
#include "inc_platform.cl"
#include "inc_common.cl"
#include "inc_rp_optimized.h"
#include "inc_rp_optimized.cl"
#include "inc_simd.cl"
#include "inc_hash_md5.cl"
#include "inc_cipher_aes.cl"
#endif

DECLSPEC int is_valid_bitcoinj_8 (const u8 v)
{
  // .abcdefghijklmnopqrstuvwxyz

  if (v > (u8) 'z') return 0;
  if (v < (u8) '.') return 0;

  if ((v > (u8) '.') && (v < (u8) 'a')) return 0;

  return 1;
}

KERNEL_FQ void m22500_m04 (KERN_ATTR_RULES ())
{
  /**
   * modifier
   */

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

  /**
   * aes shared
   */

  #ifdef REAL_SHM

  LOCAL_VK u32 s_td0[256];
  LOCAL_VK u32 s_td1[256];
  LOCAL_VK u32 s_td2[256];
  LOCAL_VK u32 s_td3[256];
  LOCAL_VK u32 s_td4[256];

  LOCAL_VK u32 s_te0[256];
  LOCAL_VK u32 s_te1[256];
  LOCAL_VK u32 s_te2[256];
  LOCAL_VK u32 s_te3[256];
  LOCAL_VK u32 s_te4[256];

  for (u32 i = lid; i < 256; i += lsz)
  {
    s_td0[i] = td0[i];
    s_td1[i] = td1[i];
    s_td2[i] = td2[i];
    s_td3[i] = td3[i];
    s_td4[i] = td4[i];

    s_te0[i] = te0[i];
    s_te1[i] = te1[i];
    s_te2[i] = te2[i];
    s_te3[i] = te3[i];
    s_te4[i] = te4[i];
  }

  SYNC_THREADS ();

  #else

  CONSTANT_AS u32a *s_td0 = td0;
  CONSTANT_AS u32a *s_td1 = td1;
  CONSTANT_AS u32a *s_td2 = td2;
  CONSTANT_AS u32a *s_td3 = td3;
  CONSTANT_AS u32a *s_td4 = td4;

  CONSTANT_AS u32a *s_te0 = te0;
  CONSTANT_AS u32a *s_te1 = te1;
  CONSTANT_AS u32a *s_te2 = te2;
  CONSTANT_AS u32a *s_te3 = te3;
  CONSTANT_AS u32a *s_te4 = te4;

  #endif

  if (gid >= gid_max) return;

  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_len = pws[gid].pw_len & 63;

  /**
   * salt
   */

  u32 salt_buf[2];

  salt_buf[0] = salt_bufs[salt_pos].salt_buf[0];
  salt_buf[1] = salt_bufs[salt_pos].salt_buf[1];

  u32 data[8];

  data[0] = salt_bufs[salt_pos].salt_buf[2];
  data[1] = salt_bufs[salt_pos].salt_buf[3];
  data[2] = salt_bufs[salt_pos].salt_buf[4];
  data[3] = salt_bufs[salt_pos].salt_buf[5];
  data[4] = salt_bufs[salt_pos].salt_buf[6];
  data[5] = salt_bufs[salt_pos].salt_buf[7];
  data[6] = salt_bufs[salt_pos].salt_buf[8];
  data[7] = salt_bufs[salt_pos].salt_buf[9];

  /**
   * loop
   */

  for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE)
  {
    u32x w0[4] = { 0 };
    u32x w1[4] = { 0 };
    u32x w2[4] = { 0 };
    u32x w3[4] = { 0 };

    const u32x out_len = apply_rules_vect_optimized (pw_buf0, pw_buf1, pw_len, rules_buf, il_pos, w0, w1);

    /**
     * append salt
     */

    u32x s0[4];
    u32x s1[4];
    u32x s2[4];
    u32x s3[4];

    s0[0] = salt_buf[0];
    s0[1] = salt_buf[1];
    s0[2] = 0x80;
    s0[3] = 0;
    s1[0] = 0;
    s1[1] = 0;
    s1[2] = 0;
    s1[3] = 0;
    s2[0] = 0;
    s2[1] = 0;
    s2[2] = 0;
    s2[3] = 0;
    s3[0] = 0;
    s3[1] = 0;
    s3[2] = 0;
    s3[3] = 0;

    switch_buffer_by_offset_le_VV (s0, s1, s2, s3, out_len);

    const u32x pw_salt_len = out_len + 8;

    w0[0] |= s0[0];
    w0[1] |= s0[1];
    w0[2] |= s0[2];
    w0[3] |= s0[3];
    w1[0] |= s1[0];
    w1[1] |= s1[1];
    w1[2] |= s1[2];
    w1[3] |= s1[3];
    w2[0] |= s2[0];
    w2[1] |= s2[1];
    w2[2] |= s2[2];
    w2[3] |= s2[3];
    w3[0] |= s3[0];
    w3[1] |= s3[1];
    w3[2]  = pw_salt_len * 8;
    w3[3]  = 0;

    /**
     * key1 = md5 ($pass . $salt):
     */

    u32x a = MD5M_A;
    u32x b = MD5M_B;
    u32x c = MD5M_C;
    u32x d = MD5M_D;

    MD5_STEP (MD5_Fo, a, b, c, d, w0[0], MD5C00, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w0[1], MD5C01, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w0[2], MD5C02, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w0[3], MD5C03, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w1[0], MD5C04, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w1[1], MD5C05, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w1[2], MD5C06, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w1[3], MD5C07, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w2[0], MD5C08, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w2[1], MD5C09, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w2[2], MD5C0a, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w2[3], MD5C0b, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w3[0], MD5C0c, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w3[1], MD5C0d, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w3[2], MD5C0e, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w3[3], MD5C0f, MD5S03);

    MD5_STEP (MD5_Go, a, b, c, d, w0[1], MD5C10, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w1[2], MD5C11, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w2[3], MD5C12, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w0[0], MD5C13, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w1[1], MD5C14, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w2[2], MD5C15, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w3[3], MD5C16, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w1[0], MD5C17, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w2[1], MD5C18, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w3[2], MD5C19, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w0[3], MD5C1a, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w2[0], MD5C1b, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w3[1], MD5C1c, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w0[2], MD5C1d, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w1[3], MD5C1e, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w3[0], MD5C1f, MD5S13);

    u32x t;

    MD5_STEP (MD5_H1, a, b, c, d, w1[1], MD5C20, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w2[0], MD5C21, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w2[3], MD5C22, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w3[2], MD5C23, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w0[1], MD5C24, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w1[0], MD5C25, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w1[3], MD5C26, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w2[2], MD5C27, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w3[1], MD5C28, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w0[0], MD5C29, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w0[3], MD5C2a, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w1[2], MD5C2b, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w2[1], MD5C2c, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w3[0], MD5C2d, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w3[3], MD5C2e, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w0[2], MD5C2f, MD5S23);

    MD5_STEP (MD5_I , a, b, c, d, w0[0], MD5C30, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w1[3], MD5C31, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w3[2], MD5C32, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w1[1], MD5C33, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w3[0], MD5C34, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w0[3], MD5C35, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w2[2], MD5C36, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w0[1], MD5C37, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w2[0], MD5C38, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w3[3], MD5C39, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w1[2], MD5C3a, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w3[1], MD5C3b, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w1[0], MD5C3c, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w2[3], MD5C3d, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w0[2], MD5C3e, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w2[1], MD5C3f, MD5S33);

    a += MD5M_A;
    b += MD5M_B;
    c += MD5M_C;
    d += MD5M_D;

    u32 ukey[8];

    ukey[0] = a;
    ukey[1] = b;
    ukey[2] = c;
    ukey[3] = d;

    /**
     * key2 = md5 ($key1 . $pass . $salt):
     */

    const u32x dgst_pw_salt_len = 16 + pw_salt_len;

    w3[3] = 0;
    w3[2] = dgst_pw_salt_len * 8;
    w3[1] = w2[1];
    w3[0] = w2[0];
    w2[3] = w1[3];
    w2[2] = w1[2];
    w2[1] = w1[1];
    w2[0] = w1[0];
    w1[3] = w0[3];
    w1[2] = w0[2];
    w1[1] = w0[1];
    w1[0] = w0[0];
    w0[3] = d;
    w0[2] = c;
    w0[1] = b;
    w0[0] = a;

    a = MD5M_A;
    b = MD5M_B;
    c = MD5M_C;
    d = MD5M_D;

    MD5_STEP (MD5_Fo, a, b, c, d, w0[0], MD5C00, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w0[1], MD5C01, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w0[2], MD5C02, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w0[3], MD5C03, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w1[0], MD5C04, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w1[1], MD5C05, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w1[2], MD5C06, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w1[3], MD5C07, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w2[0], MD5C08, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w2[1], MD5C09, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w2[2], MD5C0a, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w2[3], MD5C0b, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w3[0], MD5C0c, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w3[1], MD5C0d, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w3[2], MD5C0e, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w3[3], MD5C0f, MD5S03);

    MD5_STEP (MD5_Go, a, b, c, d, w0[1], MD5C10, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w1[2], MD5C11, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w2[3], MD5C12, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w0[0], MD5C13, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w1[1], MD5C14, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w2[2], MD5C15, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w3[3], MD5C16, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w1[0], MD5C17, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w2[1], MD5C18, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w3[2], MD5C19, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w0[3], MD5C1a, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w2[0], MD5C1b, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w3[1], MD5C1c, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w0[2], MD5C1d, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w1[3], MD5C1e, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w3[0], MD5C1f, MD5S13);

    MD5_STEP (MD5_H1, a, b, c, d, w1[1], MD5C20, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w2[0], MD5C21, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w2[3], MD5C22, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w3[2], MD5C23, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w0[1], MD5C24, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w1[0], MD5C25, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w1[3], MD5C26, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w2[2], MD5C27, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w3[1], MD5C28, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w0[0], MD5C29, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w0[3], MD5C2a, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w1[2], MD5C2b, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w2[1], MD5C2c, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w3[0], MD5C2d, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w3[3], MD5C2e, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w0[2], MD5C2f, MD5S23);

    MD5_STEP (MD5_I , a, b, c, d, w0[0], MD5C30, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w1[3], MD5C31, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w3[2], MD5C32, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w1[1], MD5C33, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w3[0], MD5C34, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w0[3], MD5C35, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w2[2], MD5C36, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w0[1], MD5C37, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w2[0], MD5C38, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w3[3], MD5C39, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w1[2], MD5C3a, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w3[1], MD5C3b, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w1[0], MD5C3c, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w2[3], MD5C3d, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w0[2], MD5C3e, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w2[1], MD5C3f, MD5S33);

    a += MD5M_A;
    b += MD5M_B;
    c += MD5M_C;
    d += MD5M_D;

    ukey[4] = a;
    ukey[5] = b;
    ukey[6] = c;
    ukey[7] = d;

    /**
     * iv = md5 ($key2 . $pass . $salt):
     */

    w0[0] = a;
    w0[1] = b;
    w0[2] = c;
    w0[3] = d;

    a = MD5M_A;
    b = MD5M_B;
    c = MD5M_C;
    d = MD5M_D;

    MD5_STEP (MD5_Fo, a, b, c, d, w0[0], MD5C00, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w0[1], MD5C01, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w0[2], MD5C02, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w0[3], MD5C03, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w1[0], MD5C04, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w1[1], MD5C05, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w1[2], MD5C06, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w1[3], MD5C07, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w2[0], MD5C08, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w2[1], MD5C09, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w2[2], MD5C0a, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w2[3], MD5C0b, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w3[0], MD5C0c, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w3[1], MD5C0d, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w3[2], MD5C0e, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w3[3], MD5C0f, MD5S03);

    MD5_STEP (MD5_Go, a, b, c, d, w0[1], MD5C10, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w1[2], MD5C11, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w2[3], MD5C12, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w0[0], MD5C13, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w1[1], MD5C14, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w2[2], MD5C15, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w3[3], MD5C16, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w1[0], MD5C17, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w2[1], MD5C18, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w3[2], MD5C19, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w0[3], MD5C1a, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w2[0], MD5C1b, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w3[1], MD5C1c, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w0[2], MD5C1d, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w1[3], MD5C1e, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w3[0], MD5C1f, MD5S13);

    MD5_STEP (MD5_H1, a, b, c, d, w1[1], MD5C20, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w2[0], MD5C21, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w2[3], MD5C22, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w3[2], MD5C23, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w0[1], MD5C24, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w1[0], MD5C25, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w1[3], MD5C26, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w2[2], MD5C27, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w3[1], MD5C28, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w0[0], MD5C29, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w0[3], MD5C2a, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w1[2], MD5C2b, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w2[1], MD5C2c, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w3[0], MD5C2d, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w3[3], MD5C2e, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w0[2], MD5C2f, MD5S23);

    MD5_STEP (MD5_I , a, b, c, d, w0[0], MD5C30, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w1[3], MD5C31, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w3[2], MD5C32, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w1[1], MD5C33, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w3[0], MD5C34, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w0[3], MD5C35, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w2[2], MD5C36, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w0[1], MD5C37, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w2[0], MD5C38, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w3[3], MD5C39, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w1[2], MD5C3a, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w3[1], MD5C3b, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w1[0], MD5C3c, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w2[3], MD5C3d, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w0[2], MD5C3e, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w2[1], MD5C3f, MD5S33);

    a += MD5M_A;
    b += MD5M_B;
    c += MD5M_C;
    d += MD5M_D;

    u32 iv[4];

    iv[0] = a;
    iv[1] = b;
    iv[2] = c;
    iv[3] = d;

    /**
     * AES-256-CBC:
     */

    #define KEYLEN 60

    u32 ks[KEYLEN];

    aes256_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);

    u32 encrypted[4];

    encrypted[0] = data[0];
    encrypted[1] = data[1];
    encrypted[2] = data[2];
    encrypted[3] = data[3];

    u32 out[4];

    aes256_decrypt (ks, encrypted, out, s_td0, s_td1, s_td2, s_td3, s_td4);

    out[0] ^= iv[0];

    // first char of decrypted wallet data must be K, L, Q, 5, # or \n

    const u32 first_byte = out[0] & 0xff;

    if ((first_byte != 0x4b) && // K
        (first_byte != 0x4c) && // L
        (first_byte != 0x51) && // Q
        (first_byte != 0x35) && // 5
        (first_byte != 0x23) && // #
        (first_byte != 0x0a))   // \n
    {
      continue;
    }

    out[1] ^= iv[1];
    out[2] ^= iv[2];
    out[3] ^= iv[3];

    if ((first_byte == 0x4b) || // K => MultiBit Classic Wallet
        (first_byte == 0x4c) || // L
        (first_byte == 0x51) || // Q
        (first_byte == 0x35))   // 5
    {
      // base58 check:

      if (is_valid_base58_32 (out[0]) == 0) continue;
      if (is_valid_base58_32 (out[1]) == 0) continue;
      if (is_valid_base58_32 (out[2]) == 0) continue;
      if (is_valid_base58_32 (out[3]) == 0) continue;

      iv[0] = encrypted[0];
      iv[1] = encrypted[1];
      iv[2] = encrypted[2];
      iv[3] = encrypted[3];

      encrypted[0] = data[4];
      encrypted[1] = data[5];
      encrypted[2] = data[6];
      encrypted[3] = data[7];

      aes256_decrypt (ks, encrypted, out, s_td0, s_td1, s_td2, s_td3, s_td4);

      out[0] ^= iv[0];
      out[1] ^= iv[1];
      out[2] ^= iv[2];
      out[3] ^= iv[3];

      if (is_valid_base58_32 (out[0]) == 0) continue;
      if (is_valid_base58_32 (out[1]) == 0) continue;
      if (is_valid_base58_32 (out[2]) == 0) continue;
      if (is_valid_base58_32 (out[3]) == 0) continue;
    }
    else if (first_byte == 0x0a) // \n => bitcoinj
    {
      if ((out[0] & 0x0000ff00)  > 0x00007f00) continue; // second_byte

      // check for "org." substring:

      if ((out[0] & 0xffff0000) != 0x726f0000) continue; // "ro" (byte swapped)
      if ((out[1] & 0x0000ffff) != 0x00002e67) continue; // ".g"

      if (is_valid_bitcoinj_8 (out[1] >> 16) == 0) continue; // byte  6 (counting from 0)
      if (is_valid_bitcoinj_8 (out[1] >> 24) == 0) continue; // byte  7

      if (is_valid_bitcoinj_8 (out[2] >>  0) == 0) continue; // byte  8
      if (is_valid_bitcoinj_8 (out[2] >>  8) == 0) continue; // byte  9
      if (is_valid_bitcoinj_8 (out[2] >> 16) == 0) continue; // byte 10
      if (is_valid_bitcoinj_8 (out[2] >> 24) == 0) continue; // byte 11

      if (is_valid_bitcoinj_8 (out[3] >>  0) == 0) continue; // byte 12
      if (is_valid_bitcoinj_8 (out[3] >>  8) == 0) continue; // byte 13
    }
    else // if (first_byte == 0x23) // # => KnCGroup Bitcoin Wallet
    {
      // Full string would be:
      // "# KEEP YOUR PRIVATE KEYS SAFE! Anyone who can read this can spend your Bitcoins."

      // check for "# KEEP YOUR PRIV" substring:

      if (out[0] != 0x454b2023) continue; // "EK #" (byte swapped)
      if (out[1] != 0x59205045) continue; // "Y PE"
      if (out[2] != 0x2052554f) continue; // " RUO"
      if (out[3] != 0x56495250) continue; // "VIRP"

      iv[0] = encrypted[0];
      iv[1] = encrypted[1];
      iv[2] = encrypted[2];
      iv[3] = encrypted[3];

      encrypted[0] = data[4];
      encrypted[1] = data[5];
      encrypted[2] = data[6];
      encrypted[3] = data[7];

      aes256_decrypt (ks, encrypted, out, s_td0, s_td1, s_td2, s_td3, s_td4);

      out[0] ^= iv[0];
      out[1] ^= iv[1];
      out[2] ^= iv[2];
      out[3] ^= iv[3];

      // check for "ATE KEYS SAFE! A" substring:

      if (out[0] != 0x20455441) continue; // " ETA" (byte swapped)
      if (out[1] != 0x5359454b) continue; // "SYEK"
      if (out[2] != 0x46415320) continue; // "FAS "
      if (out[3] != 0x41202145) continue; // "A !E"
    }

    if (atomic_inc (&hashes_shown[digests_offset]) == 0)
    {
      mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, 0, digests_offset + 0, gid, il_pos, 0, 0);
    }
  }
}

KERNEL_FQ void m22500_m08 (KERN_ATTR_RULES ())
{
}

KERNEL_FQ void m22500_m16 (KERN_ATTR_RULES ())
{
}

KERNEL_FQ void m22500_s04 (KERN_ATTR_RULES ())
{
  /**
   * modifier
   */

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

  /**
   * aes shared
   */

  #ifdef REAL_SHM

  LOCAL_VK u32 s_td0[256];
  LOCAL_VK u32 s_td1[256];
  LOCAL_VK u32 s_td2[256];
  LOCAL_VK u32 s_td3[256];
  LOCAL_VK u32 s_td4[256];

  LOCAL_VK u32 s_te0[256];
  LOCAL_VK u32 s_te1[256];
  LOCAL_VK u32 s_te2[256];
  LOCAL_VK u32 s_te3[256];
  LOCAL_VK u32 s_te4[256];

  for (u32 i = lid; i < 256; i += lsz)
  {
    s_td0[i] = td0[i];
    s_td1[i] = td1[i];
    s_td2[i] = td2[i];
    s_td3[i] = td3[i];
    s_td4[i] = td4[i];

    s_te0[i] = te0[i];
    s_te1[i] = te1[i];
    s_te2[i] = te2[i];
    s_te3[i] = te3[i];
    s_te4[i] = te4[i];
  }

  SYNC_THREADS ();

  #else

  CONSTANT_AS u32a *s_td0 = td0;
  CONSTANT_AS u32a *s_td1 = td1;
  CONSTANT_AS u32a *s_td2 = td2;
  CONSTANT_AS u32a *s_td3 = td3;
  CONSTANT_AS u32a *s_td4 = td4;

  CONSTANT_AS u32a *s_te0 = te0;
  CONSTANT_AS u32a *s_te1 = te1;
  CONSTANT_AS u32a *s_te2 = te2;
  CONSTANT_AS u32a *s_te3 = te3;
  CONSTANT_AS u32a *s_te4 = te4;

  #endif

  if (gid >= gid_max) return;

  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_len = pws[gid].pw_len & 63;

  /**
   * salt
   */

  u32 salt_buf[2];

  salt_buf[0] = salt_bufs[salt_pos].salt_buf[0];
  salt_buf[1] = salt_bufs[salt_pos].salt_buf[1];

  u32 data[8];

  data[0] = salt_bufs[salt_pos].salt_buf[2];
  data[1] = salt_bufs[salt_pos].salt_buf[3];
  data[2] = salt_bufs[salt_pos].salt_buf[4];
  data[3] = salt_bufs[salt_pos].salt_buf[5];
  data[4] = salt_bufs[salt_pos].salt_buf[6];
  data[5] = salt_bufs[salt_pos].salt_buf[7];
  data[6] = salt_bufs[salt_pos].salt_buf[8];
  data[7] = salt_bufs[salt_pos].salt_buf[9];

  /**
   * loop
   */

  for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE)
  {
    u32x w0[4] = { 0 };
    u32x w1[4] = { 0 };
    u32x w2[4] = { 0 };
    u32x w3[4] = { 0 };

    const u32x out_len = apply_rules_vect_optimized (pw_buf0, pw_buf1, pw_len, rules_buf, il_pos, w0, w1);

    /**
     * append salt
     */

    u32x s0[4];
    u32x s1[4];
    u32x s2[4];
    u32x s3[4];

    s0[0] = salt_buf[0];
    s0[1] = salt_buf[1];
    s0[2] = 0x80;
    s0[3] = 0;
    s1[0] = 0;
    s1[1] = 0;
    s1[2] = 0;
    s1[3] = 0;
    s2[0] = 0;
    s2[1] = 0;
    s2[2] = 0;
    s2[3] = 0;
    s3[0] = 0;
    s3[1] = 0;
    s3[2] = 0;
    s3[3] = 0;

    switch_buffer_by_offset_le_VV (s0, s1, s2, s3, out_len);

    const u32x pw_salt_len = out_len + 8;

    w0[0] |= s0[0];
    w0[1] |= s0[1];
    w0[2] |= s0[2];
    w0[3] |= s0[3];
    w1[0] |= s1[0];
    w1[1] |= s1[1];
    w1[2] |= s1[2];
    w1[3] |= s1[3];
    w2[0] |= s2[0];
    w2[1] |= s2[1];
    w2[2] |= s2[2];
    w2[3] |= s2[3];
    w3[0] |= s3[0];
    w3[1] |= s3[1];
    w3[2]  = pw_salt_len * 8;
    w3[3]  = 0;

    /**
     * key1 = md5 ($pass . $salt):
     */

    u32x a = MD5M_A;
    u32x b = MD5M_B;
    u32x c = MD5M_C;
    u32x d = MD5M_D;

    MD5_STEP (MD5_Fo, a, b, c, d, w0[0], MD5C00, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w0[1], MD5C01, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w0[2], MD5C02, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w0[3], MD5C03, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w1[0], MD5C04, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w1[1], MD5C05, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w1[2], MD5C06, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w1[3], MD5C07, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w2[0], MD5C08, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w2[1], MD5C09, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w2[2], MD5C0a, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w2[3], MD5C0b, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w3[0], MD5C0c, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w3[1], MD5C0d, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w3[2], MD5C0e, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w3[3], MD5C0f, MD5S03);

    MD5_STEP (MD5_Go, a, b, c, d, w0[1], MD5C10, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w1[2], MD5C11, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w2[3], MD5C12, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w0[0], MD5C13, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w1[1], MD5C14, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w2[2], MD5C15, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w3[3], MD5C16, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w1[0], MD5C17, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w2[1], MD5C18, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w3[2], MD5C19, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w0[3], MD5C1a, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w2[0], MD5C1b, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w3[1], MD5C1c, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w0[2], MD5C1d, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w1[3], MD5C1e, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w3[0], MD5C1f, MD5S13);

    u32x t;

    MD5_STEP (MD5_H1, a, b, c, d, w1[1], MD5C20, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w2[0], MD5C21, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w2[3], MD5C22, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w3[2], MD5C23, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w0[1], MD5C24, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w1[0], MD5C25, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w1[3], MD5C26, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w2[2], MD5C27, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w3[1], MD5C28, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w0[0], MD5C29, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w0[3], MD5C2a, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w1[2], MD5C2b, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w2[1], MD5C2c, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w3[0], MD5C2d, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w3[3], MD5C2e, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w0[2], MD5C2f, MD5S23);

    MD5_STEP (MD5_I , a, b, c, d, w0[0], MD5C30, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w1[3], MD5C31, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w3[2], MD5C32, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w1[1], MD5C33, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w3[0], MD5C34, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w0[3], MD5C35, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w2[2], MD5C36, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w0[1], MD5C37, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w2[0], MD5C38, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w3[3], MD5C39, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w1[2], MD5C3a, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w3[1], MD5C3b, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w1[0], MD5C3c, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w2[3], MD5C3d, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w0[2], MD5C3e, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w2[1], MD5C3f, MD5S33);

    a += MD5M_A;
    b += MD5M_B;
    c += MD5M_C;
    d += MD5M_D;

    u32 ukey[8];

    ukey[0] = a;
    ukey[1] = b;
    ukey[2] = c;
    ukey[3] = d;

    /**
     * key2 = md5 ($key1 . $pass . $salt):
     */

    const u32x dgst_pw_salt_len = 16 + pw_salt_len;

    w3[3] = 0;
    w3[2] = dgst_pw_salt_len * 8;
    w3[1] = w2[1];
    w3[0] = w2[0];
    w2[3] = w1[3];
    w2[2] = w1[2];
    w2[1] = w1[1];
    w2[0] = w1[0];
    w1[3] = w0[3];
    w1[2] = w0[2];
    w1[1] = w0[1];
    w1[0] = w0[0];
    w0[3] = d;
    w0[2] = c;
    w0[1] = b;
    w0[0] = a;

    a = MD5M_A;
    b = MD5M_B;
    c = MD5M_C;
    d = MD5M_D;

    MD5_STEP (MD5_Fo, a, b, c, d, w0[0], MD5C00, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w0[1], MD5C01, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w0[2], MD5C02, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w0[3], MD5C03, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w1[0], MD5C04, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w1[1], MD5C05, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w1[2], MD5C06, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w1[3], MD5C07, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w2[0], MD5C08, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w2[1], MD5C09, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w2[2], MD5C0a, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w2[3], MD5C0b, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w3[0], MD5C0c, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w3[1], MD5C0d, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w3[2], MD5C0e, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w3[3], MD5C0f, MD5S03);

    MD5_STEP (MD5_Go, a, b, c, d, w0[1], MD5C10, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w1[2], MD5C11, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w2[3], MD5C12, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w0[0], MD5C13, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w1[1], MD5C14, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w2[2], MD5C15, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w3[3], MD5C16, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w1[0], MD5C17, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w2[1], MD5C18, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w3[2], MD5C19, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w0[3], MD5C1a, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w2[0], MD5C1b, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w3[1], MD5C1c, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w0[2], MD5C1d, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w1[3], MD5C1e, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w3[0], MD5C1f, MD5S13);

    MD5_STEP (MD5_H1, a, b, c, d, w1[1], MD5C20, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w2[0], MD5C21, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w2[3], MD5C22, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w3[2], MD5C23, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w0[1], MD5C24, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w1[0], MD5C25, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w1[3], MD5C26, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w2[2], MD5C27, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w3[1], MD5C28, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w0[0], MD5C29, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w0[3], MD5C2a, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w1[2], MD5C2b, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w2[1], MD5C2c, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w3[0], MD5C2d, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w3[3], MD5C2e, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w0[2], MD5C2f, MD5S23);

    MD5_STEP (MD5_I , a, b, c, d, w0[0], MD5C30, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w1[3], MD5C31, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w3[2], MD5C32, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w1[1], MD5C33, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w3[0], MD5C34, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w0[3], MD5C35, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w2[2], MD5C36, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w0[1], MD5C37, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w2[0], MD5C38, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w3[3], MD5C39, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w1[2], MD5C3a, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w3[1], MD5C3b, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w1[0], MD5C3c, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w2[3], MD5C3d, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w0[2], MD5C3e, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w2[1], MD5C3f, MD5S33);

    a += MD5M_A;
    b += MD5M_B;
    c += MD5M_C;
    d += MD5M_D;

    ukey[4] = a;
    ukey[5] = b;
    ukey[6] = c;
    ukey[7] = d;

    /**
     * iv = md5 ($key2 . $pass . $salt):
     */

    w0[0] = a;
    w0[1] = b;
    w0[2] = c;
    w0[3] = d;

    a = MD5M_A;
    b = MD5M_B;
    c = MD5M_C;
    d = MD5M_D;

    MD5_STEP (MD5_Fo, a, b, c, d, w0[0], MD5C00, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w0[1], MD5C01, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w0[2], MD5C02, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w0[3], MD5C03, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w1[0], MD5C04, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w1[1], MD5C05, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w1[2], MD5C06, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w1[3], MD5C07, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w2[0], MD5C08, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w2[1], MD5C09, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w2[2], MD5C0a, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w2[3], MD5C0b, MD5S03);
    MD5_STEP (MD5_Fo, a, b, c, d, w3[0], MD5C0c, MD5S00);
    MD5_STEP (MD5_Fo, d, a, b, c, w3[1], MD5C0d, MD5S01);
    MD5_STEP (MD5_Fo, c, d, a, b, w3[2], MD5C0e, MD5S02);
    MD5_STEP (MD5_Fo, b, c, d, a, w3[3], MD5C0f, MD5S03);

    MD5_STEP (MD5_Go, a, b, c, d, w0[1], MD5C10, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w1[2], MD5C11, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w2[3], MD5C12, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w0[0], MD5C13, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w1[1], MD5C14, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w2[2], MD5C15, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w3[3], MD5C16, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w1[0], MD5C17, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w2[1], MD5C18, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w3[2], MD5C19, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w0[3], MD5C1a, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w2[0], MD5C1b, MD5S13);
    MD5_STEP (MD5_Go, a, b, c, d, w3[1], MD5C1c, MD5S10);
    MD5_STEP (MD5_Go, d, a, b, c, w0[2], MD5C1d, MD5S11);
    MD5_STEP (MD5_Go, c, d, a, b, w1[3], MD5C1e, MD5S12);
    MD5_STEP (MD5_Go, b, c, d, a, w3[0], MD5C1f, MD5S13);

    MD5_STEP (MD5_H1, a, b, c, d, w1[1], MD5C20, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w2[0], MD5C21, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w2[3], MD5C22, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w3[2], MD5C23, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w0[1], MD5C24, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w1[0], MD5C25, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w1[3], MD5C26, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w2[2], MD5C27, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w3[1], MD5C28, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w0[0], MD5C29, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w0[3], MD5C2a, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w1[2], MD5C2b, MD5S23);
    MD5_STEP (MD5_H1, a, b, c, d, w2[1], MD5C2c, MD5S20);
    MD5_STEP (MD5_H2, d, a, b, c, w3[0], MD5C2d, MD5S21);
    MD5_STEP (MD5_H1, c, d, a, b, w3[3], MD5C2e, MD5S22);
    MD5_STEP (MD5_H2, b, c, d, a, w0[2], MD5C2f, MD5S23);

    MD5_STEP (MD5_I , a, b, c, d, w0[0], MD5C30, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w1[3], MD5C31, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w3[2], MD5C32, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w1[1], MD5C33, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w3[0], MD5C34, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w0[3], MD5C35, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w2[2], MD5C36, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w0[1], MD5C37, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w2[0], MD5C38, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w3[3], MD5C39, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w1[2], MD5C3a, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w3[1], MD5C3b, MD5S33);
    MD5_STEP (MD5_I , a, b, c, d, w1[0], MD5C3c, MD5S30);
    MD5_STEP (MD5_I , d, a, b, c, w2[3], MD5C3d, MD5S31);
    MD5_STEP (MD5_I , c, d, a, b, w0[2], MD5C3e, MD5S32);
    MD5_STEP (MD5_I , b, c, d, a, w2[1], MD5C3f, MD5S33);

    a += MD5M_A;
    b += MD5M_B;
    c += MD5M_C;
    d += MD5M_D;

    u32 iv[4];

    iv[0] = a;
    iv[1] = b;
    iv[2] = c;
    iv[3] = d;

    /**
     * AES-256-CBC:
     */

    #define KEYLEN 60

    u32 ks[KEYLEN];

    aes256_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);

    u32 encrypted[4];

    encrypted[0] = data[0];
    encrypted[1] = data[1];
    encrypted[2] = data[2];
    encrypted[3] = data[3];

    u32 out[4];

    aes256_decrypt (ks, encrypted, out, s_td0, s_td1, s_td2, s_td3, s_td4);

    out[0] ^= iv[0];

    // first char of decrypted wallet data must be K, L, Q, 5, # or \n

    const u32 first_byte = out[0] & 0xff;

    if ((first_byte != 0x4b) && // K
        (first_byte != 0x4c) && // L
        (first_byte != 0x51) && // Q
        (first_byte != 0x35) && // 5
        (first_byte != 0x23) && // #
        (first_byte != 0x0a))   // \n
    {
      continue;
    }

    out[1] ^= iv[1];
    out[2] ^= iv[2];
    out[3] ^= iv[3];

    if ((first_byte == 0x4b) || // K => MultiBit Classic Wallet
        (first_byte == 0x4c) || // L
        (first_byte == 0x51) || // Q
        (first_byte == 0x35))   // 5
    {
      // base58 check:

      if (is_valid_base58_32 (out[0]) == 0) continue;
      if (is_valid_base58_32 (out[1]) == 0) continue;
      if (is_valid_base58_32 (out[2]) == 0) continue;
      if (is_valid_base58_32 (out[3]) == 0) continue;

      iv[0] = encrypted[0];
      iv[1] = encrypted[1];
      iv[2] = encrypted[2];
      iv[3] = encrypted[3];

      encrypted[0] = data[4];
      encrypted[1] = data[5];
      encrypted[2] = data[6];
      encrypted[3] = data[7];

      aes256_decrypt (ks, encrypted, out, s_td0, s_td1, s_td2, s_td3, s_td4);

      out[0] ^= iv[0];
      out[1] ^= iv[1];
      out[2] ^= iv[2];
      out[3] ^= iv[3];

      if (is_valid_base58_32 (out[0]) == 0) continue;
      if (is_valid_base58_32 (out[1]) == 0) continue;
      if (is_valid_base58_32 (out[2]) == 0) continue;
      if (is_valid_base58_32 (out[3]) == 0) continue;
    }
    else if (first_byte == 0x0a) // \n => bitcoinj
    {
      if ((out[0] & 0x0000ff00)  > 0x00007f00) continue; // second_byte

      // check for "org." substring:

      if ((out[0] & 0xffff0000) != 0x726f0000) continue; // "ro" (byte swapped)
      if ((out[1] & 0x0000ffff) != 0x00002e67) continue; // ".g"

      if (is_valid_bitcoinj_8 (out[1] >> 16) == 0) continue; // byte  6 (counting from 0)
      if (is_valid_bitcoinj_8 (out[1] >> 24) == 0) continue; // byte  7

      if (is_valid_bitcoinj_8 (out[2] >>  0) == 0) continue; // byte  8
      if (is_valid_bitcoinj_8 (out[2] >>  8) == 0) continue; // byte  9
      if (is_valid_bitcoinj_8 (out[2] >> 16) == 0) continue; // byte 10
      if (is_valid_bitcoinj_8 (out[2] >> 24) == 0) continue; // byte 11

      if (is_valid_bitcoinj_8 (out[3] >>  0) == 0) continue; // byte 12
      if (is_valid_bitcoinj_8 (out[3] >>  8) == 0) continue; // byte 13
    }
    else // if (first_byte == 0x23) // # => KnCGroup Bitcoin Wallet
    {
      // Full string would be:
      // "# KEEP YOUR PRIVATE KEYS SAFE! Anyone who can read this can spend your Bitcoins."

      // check for "# KEEP YOUR PRIV" substring:

      if (out[0] != 0x454b2023) continue; // "EK #" (byte swapped)
      if (out[1] != 0x59205045) continue; // "Y PE"
      if (out[2] != 0x2052554f) continue; // " RUO"
      if (out[3] != 0x56495250) continue; // "VIRP"

      iv[0] = encrypted[0];
      iv[1] = encrypted[1];
      iv[2] = encrypted[2];
      iv[3] = encrypted[3];

      encrypted[0] = data[4];
      encrypted[1] = data[5];
      encrypted[2] = data[6];
      encrypted[3] = data[7];

      aes256_decrypt (ks, encrypted, out, s_td0, s_td1, s_td2, s_td3, s_td4);

      out[0] ^= iv[0];
      out[1] ^= iv[1];
      out[2] ^= iv[2];
      out[3] ^= iv[3];

      // check for "ATE KEYS SAFE! A" substring:

      if (out[0] != 0x20455441) continue; // " ETA" (byte swapped)
      if (out[1] != 0x5359454b) continue; // "SYEK"
      if (out[2] != 0x46415320) continue; // "FAS "
      if (out[3] != 0x41202145) continue; // "A !E"
    }

    if (atomic_inc (&hashes_shown[digests_offset]) == 0)
    {
      mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, 0, digests_offset + 0, gid, il_pos, 0, 0);
    }
  }
}

KERNEL_FQ void m22500_s08 (KERN_ATTR_RULES ())
{
}

KERNEL_FQ void m22500_s16 (KERN_ATTR_RULES ())
{
}
