Maxwellg18 Posted January 25, 2008 Share Posted January 25, 2008 i was wondring if there was a way to get window xp product key with out installing a progam like Rock xp or anything like that what i can't do as this being a poject of mine to test my skills install programs must be gotten from the regi can't not say "it can't be done"basiclly what i'm asking if anyone know how to decrypt the windows product key from the reg and if you know where to look. unfortally i'm on vista ATM so i can't go messing around Link to comment Share on other sites More sharing options...
galileo Posted January 25, 2008 Share Posted January 25, 2008 google: produkey Link to comment Share on other sites More sharing options...
Maxwellg18 Posted January 25, 2008 Author Share Posted January 25, 2008 google: produkey everything says to use a program Link to comment Share on other sites More sharing options...
cluberti Posted January 25, 2008 Share Posted January 25, 2008 If you don't mind writing a bit of code, it can be done easily with C#. It's stored in the registry as a DigitalProductID value under HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows NT\CurrentVersion\, but it's not clear-text anymore, it's encrypted. You'll need to write some code, or use someone else's application code that's already written. Link to comment Share on other sites More sharing options...
Maxwellg18 Posted January 25, 2008 Author Share Posted January 25, 2008 (edited) If you don't mind writing a bit of code, it can be done easily with C#. It's stored in the registry as a DigitalProductID value under HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows NT\CurrentVersion\, but it's not clear-text anymore, it's encrypted. You'll need to write some code, or use someone else's application code that's already written.thanks now that i knw where to look i now need to figer out how to decrypt the key... or figer out the mathEdit Btw that is soome good information want its saying is to make a program that will decode for me i wanna figer out by my self Edited January 25, 2008 by Maxwellg18 Link to comment Share on other sites More sharing options...
Maxwellg18 Posted January 25, 2008 Author Share Posted January 25, 2008 ok i found this but i still confused a lots can someone plz explaain what this meansThe Raw Product Key is buried inside the Product Key that is printedon the sticker distributed with each Windows XP CD. It consists offive alphanumeric strings separated by '-' characters, where eachstring is composed of five characters, as in FFFFF-GGGGG-HHHHH-JJJJJ-KKKKKEach character is one of the following 24 letters and digits: B C D F G H J K M P Q R T V W X Y 2 3 4 6 7 8 9Very similar to the decimal encoding of the Installation ID the 25characters of the Product Key form a base-24 encoding of the binaryrepresentation of the Product Key. Decoding the Product Key yields amulti-precision integer of roughly 115 bits, which is stored - againin little endian byte order - in an array of 15 bytes. Decoding theabove Product Key results in the following byte sequence. 0x6F 0xFA 0x95 0x45 0xFC 0x75 0xB5 0x52 0xBB 0xEF 0xB1 0x17 0xDA 0xCD 0x00Of these 15 bytes the least significant four bytes contain the RawProduct Key in little endian byte order. The least significant bit isremoved by shifting this 32-bit value (0x4595FA6F - remember thelittle endian byte order) to the left by one bit position, resultingin a Raw Product Key of 0x22CAFD37, or 583728439in decimal notation.The eleven remaining bytes form a digital signature, allowingverification of the authenticity of the Product Key by means of ahard-coded public key. Link to comment Share on other sites More sharing options...
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