Write python code in delphi AES MODE ECB - delphi

Question

I translated two functions in delphi but i don't know if they are right, I need to write the def do_aes_encrypt(key2_t_xor) to know if I am right.
This is what I wrote in delphi:
function key_transform (old_key:string): string;
var
x :integer;
begin
result:='';
for x := 32 downto 0 do
result:= result + chr(ord(old_key[x-1])-( x mod $0C)) ;
end;
function key_xoring ( key2_t :string ; kilo_challenge :string) : string ;
var
i :integer;
begin
result := '';
i:=0 ;
while i <= 28 do begin
result := result + chr(ord(key2_t[i+1]) xor ord(kilo_challenge[3]));
result := result + chr(ord(key2_t[i+2]) xor ord(kilo_challenge[2])) ;
result := result+ chr(ord(key2_t[i+3]) xor ord (kilo_challenge[1])) ;
i := i + 4 ;
end;
end;
This is the original python code:
def key_transform(old_key):
new_key = ''
for x in range(32,0,-1):
new_key += chr(ord(old_key[x-1]) - (x % 0x0C))
return new_key
def key_xoring(key2_t, kilo_challenge):
key2_t_xor = ''
i = 0
while i <= 28:
key2_t_xor += chr(ord(key2_t[i]) ^ ord(kilo_challenge[3]))
key2_t_xor += chr(ord(key2_t[i+1]) ^ ord(kilo_challenge[2]))
key2_t_xor += chr(ord(key2_t[i+2]) ^ ord(kilo_challenge[1]))
key2_t_xor += chr(ord(key2_t[i+3]) ^ ord(kilo_challenge[0]))
i = i + 4
return key2_t_xor
def do_aes_encrypt(key2_t_xor):
plaintext = b''
for k in range(0,16):
plaintext += chr(k)
obj = AES.new(key2_t_xor, AES.MODE_ECB)
return obj.encrypt(plaintext)
/////////////////////////////////////////////////////////////////////////////
{
kilo_challenge = kilo_header[8:12]
chalstring = ":".join("{:02x}".format(ord(k)) for k in kilo_challenge)
key2 = 'qndiakxxuiemdklseqid~a~niq,zjuxl' # if this doesnt work try 'lgowvqnltpvtgogwswqn~n~mtjjjqxro'
kilo_response = do_aes_encrypt(key_xoring(key_transform(key2),kilo_challenge))}
this code is for calculate data line 16 byte to be send as an addition to 32 byte
before
look photo the marked line in blue is what i need to calculate by the 4 byte hex befor marked in porple
and this is the key
key2 = 'qndiakxxuiemdklseqid~a~niq,zjuxl'
in delphi
because python code is working perfect
look to the photo
how it work
this is for lg phones upgrading firmware when i receive the KILOCENT ANSOWER AS THE photo show`s
this below change every time phone connected
||
V
4b 49 4c 4f 43 45 4e 54 ([ac e5 b1 06]) 00 00 00 00 KILOCENT¬å±.....
00 00 00 00 00 00 00 00 30 d4 00 00 b4 b6 b3 b0 ........0Ô..´¶³°
i have to send KILOMETER REQUEST to phone the first and second line is fixed no change but the third i have to change it by the AES ECB MODE encryption look
4b 49 4c 4f 4d 45 54 52 00 00 00 00 02 00 00 00 KILOMETR........
00 00 00 00 10 00 00 00 85 b6 00 00 b4 b6 b3 b0 ........…¶..´¶³°
fc 21 d8 e5 5b aa fd 58 1e 33 58 fd e9 0b 65 38 ü!Øå[ªýX.3Xýé.e8 <==this
and this is old key
key2 = 'qndiakxxuiemdklseqid~a~niq,zjuxl'