giangnguyen

_Crypt_HashData acting very weird

7 posts in this topic

#1 ·  Posted (edited)

Hi all
I have been working with some hashing but _Crypt_HashData is acting weird. After I use BinaryToString on the output, I get weird things like PÃÆ/þc7æäòð°}ö<. Can anyone help?

I am on windows 10 if it matters, upgraded yesterday

Edited by giangnguyen

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No surprise here: you get exactly what you ask for.

Q - "What do you think a random binary hash looks like, once interpreted as a string?"
A - "Unicode garbage"

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#3 ·  Posted (edited)

Isn't the output supposed to give me the MD5 hash after running BinaryToString on it?

Edited by giangnguyen

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No, the function returns the hash, no need to convert it to a string to see it, it's already a string.


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I know it is a hash already but is there any way to convert it to a "normal" MD5 hash?

Like  6a7380b17b975ae2b78a325c8091b684 ?

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As the help file clearly mentions, the output is a BINARY variant. Obtaining the hex value of the hash is soooo simple that I don't know if this is of any use.

Local $bHash = _Crypt_HashData("Original data to be hashed", $CALG_MD5)
ConsoleWrite(VarGetType($bHash) & " = " & String($bHash) & " which simply prints as " & StringTrimLeft($bHash, 2) & @LF)

 

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This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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1 hour ago, jchd said:

As the help file clearly mentions, the output is a BINARY variant. Obtaining the hex value of the hash is soooo simple that I don't know if this is of any use.

Local $bHash = _Crypt_HashData("Original data to be hashed", $CALG_MD5)
ConsoleWrite(VarGetType($bHash) & " = " & String($bHash) & " which simply prints as " & StringTrimLeft($bHash, 2) & @LF)

 

 

I got it now, thanks a lot! I haven't work with hashing much before.

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