hashcat and HMAC-SHA256 ...

[debugasm]

@chants with your change :

Hashfile 'message.txt' on line 1 (1d88f5...puNA+iZD2RbscVWiz1HusLS+dLyWwgQF): Token length exception
No hashes loaded.

Other changes are needed :

\hashcat\include\common.h

#define PW_MAX              8192

#define SALT_MAX            8192

\hashcat\src\interface.c

static bool parse_and_store_generic_salt (u8 *out_buf, int *out_len, const u8 *in_buf, const int in_len, MAYBE_UNUSED hashconfig_t *hashconfig)
{
  u32 tmp_u32[(2048 * 2) + 1] = { 0 };

  if (in_len > 16384) return false; // 512 = 2 * 256 -- (2 * because of hex), 256 because of maximum salt length in salt_t

  if (hashconfig->opts_type & OPTS_TYPE_ST_HEX)
  {
    if (in_len < (int) (hashconfig->salt_min * 2)) return false;
    if (in_len > (int) (hashconfig->salt_max * 2)) return false;
  }
  else
  {
    if (in_len < (int) hashconfig->salt_min) return false;
    if (in_len > (int) hashconfig->salt_max) return false;
  }

  u8 *tmp_buf = (u8 *) tmp_u32;

  int tmp_len = 0;

  if (hashconfig->opts_type & OPTS_TYPE_ST_HEX)
  {
    if (tmp_len & 1) return false;

    tmp_len = in_len / 2;

    for (int i = 0, j = 0; i < tmp_len; i += 1, j += 2)
    {
      u8 p0 = in_buf[j + 0];
      u8 p1 = in_buf[j + 1];

      tmp_buf[i]  = hex_convert (p1) << 0;
      tmp_buf[i] |= hex_convert (p0) << 4;
    }
  }
  else if (hashconfig->opts_type & OPTS_TYPE_ST_BASE64)
  {
    tmp_len = base64_decode (base64_to_int, (const u8 *) in_buf, in_len, tmp_buf);
  }
  else
  {
    if (in_len) memcpy (tmp_buf, in_buf, in_len);

    tmp_len = in_len;
  }

  if (hashconfig->opts_type & OPTS_TYPE_ST_UTF16LE)
  {
    if (tmp_len >= 128) return false;

    for (int i = 64 - 1; i >= 1; i -= 2)
    {
      const u32 v = tmp_u32[i / 2];

      tmp_u32[i - 0] = ((v >> 8) & 0x00FF0000) | ((v >> 16) & 0x000000FF);
      tmp_u32[i - 1] = ((v << 8) & 0x00FF0000) | ((v >>  0) & 0x000000FF);
    }

    tmp_len = tmp_len * 2;
  }

  if (hashconfig->opts_type & OPTS_TYPE_ST_LOWER)
  {
    lowercase (tmp_buf, tmp_len);
  }

  if (hashconfig->opts_type & OPTS_TYPE_ST_UPPER)
  {
    uppercase (tmp_buf, tmp_len);
  }

  int tmp2_len = tmp_len;

  if (hashconfig->opts_type & OPTS_TYPE_ST_ADD80)
  {
    if (tmp2_len >= 8192) return false;

    tmp_buf[tmp2_len++] = 0x80;
  }

  if (hashconfig->opts_type & OPTS_TYPE_ST_ADD01)
  {
    if (tmp2_len >= 8192) return false;

    tmp_buf[tmp2_len++] = 0x01;
  }

  if (hashconfig->opts_type & OPTS_TYPE_ST_GENERATE_LE)
  {
    u32 max = tmp2_len / 4;

    if (tmp2_len % 4) max++;

    for (u32 i = 0; i < max; i++)
    {
      tmp_u32[i] = byte_swap_32 (tmp_u32[i]);
    }

    // Important: we may need to increase the length of memcpy since
    // we don't want to "loose" some swapped bytes (could happen if
    // they do not perfectly fit in the 4-byte blocks)
    // Memcpy does always copy the bytes in the BE order, but since
    // we swapped them, some important bytes could be in positions
    // we normally skip with the original len

    if (tmp2_len % 4) tmp2_len += 4 - (tmp2_len % 4);
  }

  memcpy (out_buf, tmp_buf, tmp2_len);

  *out_len = tmp_len;

  return true;
}

Now all the controls are valid for a string of maximum length 8192 characters but error change :

Hashfile 'message.txt' on line 1 (1d88f5...puNA+iZD2RbscVWiz1HusLS+dLyWwgQF): Salt-length exception
No hashes loaded.

I have attached the "message.txt" file

The password is : 12345