Rem /* Read input file in chunks of 1 KBytes using `set /P` `for /F` is avoided Rem // Convert temporary file with hex codes into binary output file:Ĭertutil -f -v -decodehex "%_TMPF%" "%_OUTF%" 4 Rem // Prepare input file by replacing `\x` with ` ` and writing result to temp. Set "_TMPF=%TEMP%\%~n0_%RANDOM%.tmp" & rem // (temporary file) Set "_OUTF=%~2" & rem // (output file `%~2` is second command line argument) Set "_INPF=%~1" & rem // (input file `%~1` is first command line argument)
Setlocal EnableExtensions DisableDelayedExpansion The following script reads your input hex string from a file, replaces every \x by a SPACE in a temporary file and converts this to a binary file using certutil -decodehex: off However, this does not understand the hex codes of your input data, the \x need to be removed. Type - numeric CRYPT_STRING_* encoding type
Yes, there is a way: there is the tool named CertUtil.exe (available since Windows XP, though some verbs may have been altered), which features a verb called -decodehex (for the optional parameter type take a look at the argument dwFlags of the function CryptBinaryToStringA): Usage:ĬertUtil -decodehex InFile OutFile
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