SamyGO

Posted: **Sun Aug 05, 2012 8:29 pm**

Im trying to decrypt firmware to have a look and learn from it, but python gives a error.
Its my first time decrypting and my firsttime python, and also my first time with firmware..

Python says:

SamyGO Firmware Decrypter

Firmware: T-ECPAKUC v1031.0

No image\appdata.* files found in directory 'image'
Decrypting 'image\exe.img.sec'

Decrypted result will be here: 'image\exe.img'

AES Encrypted CI+ firmware detected.
Decrypting with AES...
secret key : **********************************************
Decrypting AES...

Decrypting with XOR Key :
Crypto package found, using fast XOR engine.

Traceback (most recent call last):
File "E:\Downloads\Samsung\T-ECPAKUC\SamyGO.py", line 232, in <module>
SamyGO("exe")
File "E:\Downloads\Samsung\T-ECPAKUC\SamyGO.py", line 185, in SamyGO
decfile,md5digg,xorkey = xor( encfile )
File "E:\Downloads\Samsung\T-ECPAKUC\SamyGO.py", line 68, in xor
cip_xor = XOR.new( keyData )
ValueError: XOR key cannot be the null string (0 bytes long)
>>>

What is going wrong and what do i have to do???

I want to learn more about firware, because id like to have the new smarthub layout and allshare play on my UE55D8000.
Plus i want to see if i can make more video files work, like trying to implement codecs.

Posted: **Sat Aug 11, 2012 4:36 am**

I am having the exact same error...........

Code: Select all

C:\Python26>python Samy.py "D:\Desktop\DO NOT SYNC\Samsung Hacking\FW\T-ECPAKUC"
SamyGO Firmware Patcher v0.26 (c) 2010 Erdem U. Altinyurt

                   -=BIG FAT WARNING!=-
            You can brick your TV with this tool!
Authors accept no responsibility about ANY DAMAGE on your devices!
         project home: http://SamyGO.sourceforge.net

Firmware:  T-ECPAKUC v1019.4

AES Encrytped CI+ firmware detected.
Decrypting with AES...
secret key :  ******************************************************
Decrypting AES...

Decrypting with  XOR Key :
Crypto package found, using fast XOR engine.
Traceback (most recent call last):
  File "Samy.py", line 1054, in <module>
    SamyGO( sys.argv[1] )
  File "Samy.py", line 971, in SamyGO
    decfile,md5digg,xorkey = xor( encfile )
  File "Samy.py", line 93, in xor
    cip_xor = XOR.new( keyData )
ValueError: XOR key cannot be the null string (0 bytes long)

C:\Python26>

I have tried with different firmwares and same issue for all of them.....

Posted: **Sat Aug 11, 2012 6:24 am**

Patcher version to old.
Take recent from svn (0.31)

Posted: **Sat Aug 11, 2012 8:32 am**

juuso wrote:Patcher version to old.
Take recent from svn (0.31)

Thanks that worked!!!!

Code: Select all

C:\Python26>python Samy2.py decrypt "D:\Desktop\DO NOT SYNC\Samsung Hacking\FW\T-ECPAKUC"
SamyGO Firmware Patcher v0.31Beta (c) 2010-2011 Erdem U. Altinyurt

                   -=BIG FAT WARNING!=-
            You can brick your TV with this tool!
Authors accept no responsibility about ANY DAMAGE on your devices!
         project home: http://www.SamyGO.tv

Firmware:  T-ECPAKUC v1019.4

AES Encrytped CI+ firmware detected.
Decrypting with AES...
secret key :  *************************************
Decrypting AES...

Decrypting with  XOR Key :  T-ECPAKUC
Crypto package found, using fast XOR engine.

Calculated CRC : 0x2E0C0E95
CRC Validation passed

C:\Python26>

Posted: **Sat Aug 18, 2012 9:29 pm**

where can i find that??
Do you have the link????

SamyGO

Python Error during Decrypting Firmware

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