Dave Angel wrote:
for byte0, byte1 in itertools.izip(packed_data,
itertools.cycle(packed_XorKey)):
decrypt.append(chr(ord(byte0) ^ ord(byte1)))
And of course that leads to:
decrypt = [chr(ord(byte0) ^ ord(byte1)) for byte0, byte1 in
itertools.izip(packed_data, itertools.cycle(packed_X
EncryptString="313B372C2E2C63362E2128"
>
>
>This is different to what I expected, it is a string of ascii bytes
>representing hex values.
>Is that the real format of your data? If so we need to split it into pairs and
>use
>int() to convert it. Or is your real data a string of bytes that happen
Sweet nice tip I love this list. Thank you.
Mike
On Sat, Oct 24, 2009 at 7:40 PM, Dave Angel wrote:
> Tom Green wrote:
>
>> Thanks for your reply Dave. I am capturing the data off the network
>> (wireshark) and saving it in WinHex for testing. I am actually building a
>> socket to decrypt th
Tom Green wrote:
Thanks for your reply Dave. I am capturing the data off the network
(wireshark) and saving it in WinHex for testing. I am actually building a
socket to decrypt the data, so prior to implementing my logic in the socket,
I figured I would write the algorithm in a quick script. H
Thanks for your reply Dave. I am capturing the data off the network
(wireshark) and saving it in WinHex for testing. I am actually building a
socket to decrypt the data, so prior to implementing my logic in the socket,
I figured I would write the algorithm in a quick script. Here is what I
have
Tom Green wrote:
Alan,
Thanks for your response and hopefully I can clear things up. I apologize
for not being more clear.
I obtain the HEX encoded data from Winhex i.e. copy Hex values. The HEX
encode data is very large and I simply paste it into my Python script along
with the XOR key. The
This is what I have so far,
import struct
EncryptString="313B372C2E2C63362E2128"
XorKey="41424344"
key = struct.unpack("d", XorKey)
num_ints = len(EncryptString)/11
data = struct.unpack("%dd"% num_ints,EncryptString)
The above code generates an error the my string must be a string length of
16
> Take the 4 byte XOR key. If I convert them to int with Base 16
> it takes the 4 and converts it to 0x34 when I in turn I actually need 0x41.
OK, thats because int is for converting strings. You need to use struct.unpack
to convert the 4 bytes into an int.
You also need to figure out how man
Alan,
Thanks for your response and hopefully I can clear things up. I apologize
for not being more clear.
I obtain the HEX encoded data from Winhex i.e. copy Hex values. The HEX
encode data is very large and I simply paste it into my Python script along
with the XOR key. The data is a string o
"Tom Green" wrote
wondering if there was someway in Python to indicate that the string is a
string of HEX values similar to Perl's pack.
You need to be very careful in your terminology here.
Is it "a string of hex values" ie a string representation of a hex
value or is it a string of bytes
Hello everyone,
First, I wanted to thank everyone in advance for your help and any feedback
is appreciated. Here is what I am trying to accomplish:
I have this encrypted data that was sent across the network. The decryption
is a simple XOR with a 16 byte key. I started writing a basic Python s
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