3 posts in this topic
I'm too stupid to see my mistake:
To investigate the internal "dictionary" of TIFF files I'd like to read in the files in binary mode and to check, if there are more than one pages "in" this TIFF.
Notepad++, "View as Hex" is presenting the first bytes as "49 49 2a 20 08 20 20 20 12" for the TIF attached to this posting
The "TIFF Header Format" is easy:
Offset 00h, 2 Byte = Byte Order, "II"=intel, "MM"=motorola. (I = 0x49)
Offset 02h, 2 Byte = Version Nr.
Offset 04h, 4 Byte = pointer to first IFD entry
Description of TIFF header: https://www.awaresystems.be/imaging/tiff/faq.html#q3
Howto read and analyse the binary content correctly? This is my messy, not operational code:
$sampleTiff="H:\daten\tif\11\11\111111.TIF" $h=FileOpen($sampleTiff,16) $content=FileRead($h) ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $content = ' & $content & @CRLF & '>Error code: ' & @error & @CRLF) ;### Debug Console FileClose($h) $type=VarGetType($content) ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $type = ' & $type & @CRLF & '>Error code: ' & @error & @CRLF) ;### Debug Console $ToString=BinaryToString($content) ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $ToString = ' & $ToString & @CRLF & '>Error code: ' & @error & @CRLF) ;### Debug Console ConsoleWrite(@CRLF & @CRLF) $content=StringTrimLeft($content,2) ; cut off the leading "0x" ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $content = ' & $content & @CRLF & '>Error code: ' & @error & @CRLF) ;### Debug Console for $i = 1 to 8 step 8 $next=StringMid($content,$i,2) ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $next = ' & $next & @CRLF & '>Error code: ' & @error & @CRLF) ;### Debug Console $Chr=BinaryToString($next) ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $Chr = ' & $Chr & @CRLF & '>Error code: ' & @error & @CRLF) ;### Debug Console ConsoleWrite(@CRLF & "---" & @CRLF) Next Regards, Rudi.
CodeCrypter enables you to encrypt scripts without placing the key inside the script.
This is because this key is extracted from the user environment at runtime by, for example:
password user query any macro (e.g., @username) any AutoIt function call any UDF call some permanent environment variable on a specific machine (and not created by your script) a server response a device response anything else you can think of, as long as it's not stored in the script any combination of the above You need several scripts to get this to work, and they are scattered over several threads, so here's a single bundle that contains them all (including a patched version of Ward's AES.au3; with many thanks to Ward for allowing me to include this script here):
Note: if you experience issues under Win8/8.1 (as some users have reported), please upgrade to Win10 (or use Win7) if you can; as far as I can tell, the scripts in the bundle all work under Win7 & Win10 (and XP). Moreover, I have no access to a Win8 box, so these issues will not be fixed, at least not by yours truly.
How the bits and pieces fit together:
CodeCrypter is a front-end for the MCF UDF library (you need version 1.3 or later). Its thread is here:
'?do=embed' frameborder='0' data-embedContent>>
The MCF package (also contained in the CodeScannerCrypter bundle) contains MCF.au3 (the library itself) plus a little include file called MCFinclude.au3. The latter you have to include in any script you wish to encrypt. Any code preceding it will not be encrypted, any code following it will be encrypted. You define the dynamic key inside MCFinclude.au3, in the UDF: _MCFCC_Init().
From the same post you can download an MCF Tutorial which I heartily recommend, because encrypting a script requires a number of steps in the right order, namely:
In MCFinclude.au3, define and/or choose your dynamic key(s) (skip this step = use default setting) include MCFinclude.au3 in your target script Run CodeScanner (version 2.3+) on your target script, with setting WriteMetaCode=True (see '?do=embed' frameborder='0' data-embedContent>>), then close CodeScanner. Start CodeCrypter press the Source button to load your target file enable Write MCF0 (tick the first option in Main Settings) Enable "Encrypt" (last option in the Main Settings) Go to the Tab Encrypt and set up the encryption the way you want (skip this = use default settings) Return to Main Tab and press "Run" if all goes well, a new script called MCF0test.au3 is created in the same directory as your target. It has no includes and no redundant parts. Please check that it works as normal. (see Remarks if not) It all sounds far more complicated than it is, really.
Not convinced? Check out this updated and extended Q & A pdf (FAQ, also included in the bundle) to help you get started:
BackTranslation is a test to check that the MetaCode translation worked. Skip it at your peril. It also turns your multi-include composite script into a single portable file without redundant parts (you can opt to leave the redundant parts in, if you want).
CodeCrypter can also obfuscate (vars and UDF names) and replace strings, variable names and UDF names with anything else you provide, for example, for language translation). After CodeScanner separates your target's structure from its contents, CodeCrypter (actually MCF, under the hood) can change any part, and then generate a new script from whichever pieces you define. See the MCF Tutorial for more explanation and examples.
You need the following additional scripts to get anything to work (now all included in the bundle):
CodeScanner.au3 version 2.9+ (in the CodeScanner zip in the CodeScanner thread, link above) readCSdatadump.au3 (version 1.1+, in the CodeScanner zip) MCF.au3 (version 1.3+, in the MCF zip in the MCF thread, link above) MCFinclude.au3 (version 1.1+, in the MCF zip) AES.au3, by Ward (now also included in bundle, thanks to Ward), see '?do=embed' frameborder='0' data-embedContent>> As you can see, encryption currently relies on Ward excellent AES UDF, but you can replace this with any other algorithm you like; just edit MCFinclude.au3 UDF _MCFCC(), and MCF.au3 UDF _EncryptEntry().
Going to lie down now...
#cs ---------------------------------------------------------------------------- AutoIt Version: 22.214.171.124 Author: usmiv4o Script Function: AutoIt script to check if files in directory are changed. It is usefull for security contra-inteligense measures. Function Name: LoadTripwireDB() Description: Loads database (text file tripwire.txt) and compare files in /test folder for changes. compares Hash (MD5) checksums. If they are not the same starts Initial() Function Name: Initial() Description: Checks directory and makes index of files and their MD5 checksums in text file (tripwire.txt) Function Name: Hush() Description: Checks file and returns its MD5 checksum. Requirement(s): Windows XP Return Value(s): On Success - Returns true. Files are the same as before. On Failure - return false. Example: LoadTripwireDB() #ce ---------------------------------------------------------------------------- #include <Crypt.au3> #include <File.au3> #include <Array.au3> $sDir = @ScriptDir & "\Test" $sFilePath = @ScriptDir & "\tripwire.txt" Func Hush(ByRef $sFile) $sRead = FileOpen( $sFile) $dHash = _Crypt_HashData($sRead, $CALG_MD5) ; Create a hash of the text entered. ConsoleWrite("Hash of file " & $sFile & " is " & $dHash & @CRLF) EndFunc ;ConsoleWrite("Files in Dir are " & $aScriptDir & @CRLF) ;$sFilePath = @ScriptDir & "\Examples.txt" ;_FileWriteFromArray($sFilePath, $aScriptDir, 1) ;_ArrayDisplay($aScriptDir, "1D display") Func Initial() $aScriptDir = _FileListToArray($sDir) for $i = 1 To UBound($aScriptDir) - 1 $dHash = _Crypt_HashData($i, $CALG_MD5) ;ConsoleWrite("File " & $aScriptDir[$i] & " is " & $dHash & @CRLF) ConsoleWrite($aScriptDir[$i] & ":" & $dHash & @CRLF) ;Hush($aScriptDir[$i]) ;FileWrite $hFileOpen = FileOpen($sFilePath, $FO_APPEND) If $hFileOpen = -1 Then MsgBox($MB_SYSTEMMODAL, "", "An error occurred when reading the file.") EndIf FileWrite($hFileOpen, $aScriptDir[$i] & ":" & $dHash & @CRLF) Next EndFunc Func Monitor() $aScriptDir = _FileListToArray($sDir) for $i = 1 To UBound($aScriptDir) - 1 Next EndFunc Func LoadTripwireDB() $comparison_ok = false $dArray = _FileListToArray($sDir) ;directory $dArray0 = UBound($dArray) - 1 $fArray = FileReadToArray($sFilePath) ;file $fArray0 = UBound($fArray) ;_ArrayDisplay($dArray, "files array") if $dArray0 = $fArray0 Then ; are file same as recorded in txt file? ;ConsoleWrite("files in monitoring dir: " & $dArray & " = file recorded: " & $fArray0 & @CRLF & $fArray& @CRLF) for $i = 1 To UBound($dArray) - 1 ;ConsoleWrite("i = " & $i & @CRLF) $dHash = _Crypt_HashData($i, $CALG_MD5) ;binary ;$dHash = BinaryToString($dHash) $ffhash = StringSplit( $fArray[$i-1],":") $fhash = $ffhash ;ConsoleWrite("IsBinary $dHash " & IsBinary($dHash) & @CRLF) if $dHash = $fhash Then ;if compared hashes are equal ;ConsoleWrite($fhash & ":" & $dHash & " equal" & @CRLF) ;ConsoleWrite("File: " & $fhash & @CRLF & "Directory: " & $dHash & @CRLF & "equal: yes " & @CRLF) Else ;if compared hashes are not equal ;ConsoleWrite("File: " & $fhash & @CRLF & "Directory: " & $dHash & @CRLF & "equal: not " & @CRLF) ;MsgBox(0,"hash md5",$fhash & ":" & $dHash & " not equal") EndIf Next ;ConsoleWrite("hashes are equal" & @CRLF) $comparison_ok = true Else ConsoleWrite("number of files in monitoring dir are not same as recorded" & @CRLF) ConsoleWrite("directory: " & $dArray &":"& "files: " & UBound($fArray) - 1 & @CRLF) EndIf Return $comparison_ok EndFunc #main if LoadTripwireDB() = true Then ConsoleWrite(" hashes are equal " & @CRLF) ElseIf LoadTripwireDB() <> true Then ConsoleWrite(" hashes are not equal " & @CRLF) ConsoleWrite(" hashes are not equal " & @CRLF) Initial() EndIf
Hello all, I would like to present my proof of concept work to the autoit forum and community. (I saw this as a concept in a few sci-fi shows and thought I would bring it into real life)
What is it?: DARTIS (Dimensions And Relative Time Information System)© is a 4 dimensional holographic encryption algorithm which uses the current timestamp(measured down to femto seconds) to encrypt data under several layers of calculations. One large keyfile is used and multiple keys are extracted from it, and overlaid on each other to create 1,000,000,000,000,000 unique keys per second. Special thanks to the creator of the matrix maths udf (if this is you please let me know and I will put your name here.) Also special thanks to trancexx for her LZNT compression code.
Please see the following link for the full set of functions and an example debugging application, which shows usage of all the functions.
https://pdglobal.net/?pid=SIM#SIM (DARTIS is packed with SIM)
DARTIS is an encryption scheme that extracts a timestamp from the current system time, then splits it up into an array of strings each 4 digits long.
Then those strings are plugged into the 16mb keyfile blueprint, where each 4 digit value represents a 2D array.
Then each 2D array is layered on top of the one that came before it, compressing the data underneath several layers of encryption.
It's 4D because the key is derived from the system time(so the same key will never be used twice)
And it's holographic because the data is buried underneath several layers of data.
The full 16mb keyfile blueprint is required to re-extract the data that has been injected into the holographic keyfile blueprint. (as the values all have to be the same AND be in the same order)
The only downside to this encryption scheme is that the only safe way to distribute keys is by snail mail or in person. (because if you transmit it via the internet, you're limiting the security of your keyfile blueprint to whatever lesser encryption algorithm you;re using to transmit the keyfile blueprint)
Hope I explained it in a way that's easy to understand! If you have any further questions about it feel free to ask! (and/or look around the DARTIS.au3 file to see how this is done, and run DEBUG.au3 to see under the hood)
What's the best way to receive file from a desktop app?
app.exe will execute a cmd with "au3file.exe /path/of/the/file.xml" and the au3file.exe will get and delete that. Or else? THE MOST IMPORTANT PART OF THE QUESTION
And best way to transfer file to a desktop app?
au3file.exe do a $_POST request and the app.exe MUST HAVE a local HTTP server that can receive $_POST, but it looks heavy 'cause the app must have a server such XAMPP. au3file.exe execute a cmd with "app.exe /path/of/the/file.xml" and the app.exe will now get that file and delete. Or else?