11 bytes of this buffer are encrypted with the XOR algorithm as follows: i = 0 while ( 1 ) {   crypted_buffer = (_BYTE *)this_->crypted_buffer;   if ( i gt;= this-gt;crypted_buffer_size - 4 ) // this-gt;crypted_buffer_size == 15     break;   ++i;   crypted_buffer[i + 4] ^= crypted_buffer[i & 3];  The generated buffer in encoded using the BASE64 alphabet, where the last two characters are replaced with “-” and “_”