write_eeprom_with_0x30

void __fastcall update_eeprom_with_key_0x30(int in_eeprom_wr_offset, unsigned __int8 *in_key_seed, int in_tweak_val, unsigned int in_num_blocks, unsigned __int8 *in_data_buf)
{
  int _14; // ST14_4
  unsigned __int8 *_18; // ST18_4
  int eeprom_block_offset10; // r6
  unsigned int counter0; // r5
  int in_block_calc_offset; // r0
  signed int v10; // r1
  unsigned int in_interations; // r6
  int tweak_val; // r6
  unsigned int counter1; // r5
  int offset; // [sp+4h] [bp-4h]
  int in_tweak; // [sp+1Ch] [bp+14h]
  unsigned int num_blocks; // [sp+20h] [bp+18h]

  _14 = in_eeprom_wr_offset;
  _18 = in_key_seed;
  in_tweak = in_tweak_val;
  num_blocks = in_num_blocks;
  eeprom_block_offset10 = in_eeprom_wr_offset;
  counter0 = 0;
  in_block_calc_offset = 0x10 * in_tweak_val;
  if ( eeprom_block_offset10 == 0xFF )
  {
    v10 = 0x2560;
  }
  else if ( eeprom_block_offset10 == 0x81 )
  {
    v10 = 0x2800;
  }
  else
  {
    if ( eeprom_block_offset10 != 0x82 )
    {
      offset = (eeprom_block_offset10 << 0xA) + in_block_calc_offset + 0x560;
      memcpy(&key_seed_data, in_key_seed + 0x150, 0x10);
      if ( !get_key_from_secure_vault(0x30, &skey_0x30, 0x10) )
      {
        aes_ebc_encrypt_init_wrapper((unsigned __int8 *)&skey_0x30, &aes_ctx_30);
        in_interations = eeprom_block_offset10 + 1;
        while ( counter0 < in_interations )
        {
          aes_ecb_encrypt_wrapper((unsigned __int8 *)&key_seed_data, &aes_ctx_30);
          ++counter0;
        }
        aes_ebc_encrypt_init_wrapper((unsigned __int8 *)&key_seed_data, &aes_ctx_30);
        tweak_val = in_tweak;
        counter1 = 0;
        while ( counter1 < num_blocks )
        {
          *(_DWORD *)&in_data_buf[0x10 * counter1] ^= tweak_val;
          aes_ecb_encrypt_wrapper(&in_data_buf[0x10 * counter1++], &aes_ctx_30);
          ++tweak_val;
        }
        write_eprom2(offset, in_data_buf, 0x10 * num_blocks);
      }
LABEL_16:
      memset_func(&skey_0x30, 0, 0x10);
      memset_func(&key_seed_data, 0, 0x10);
      memset_func(&aes_ctx_30, 0, 0xC0);
      JUMPOUT(loc_D5A);
    }
    v10 = 0x7400;
  }
  write_eprom2(in_block_calc_offset + v10, in_data_buf, 0x10 * in_num_blocks);
  goto LABEL_16;
}