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SHA-1 CHD Calculation

Posted: Fri Jun 15, 2018 4:57 pm
by Proffix
Hi there

As seen in Topic is my question.

I calculated the SHA-1 of many files with Romcenter, Romulus und Hashmyfiles and a few more

All with the same Hash but Romcenter was the only one who displays an other SHA-1

Is there a tool which calculates the sha1 like romcenter do?

another solution for this problem where that you can copy and paste the value straight through romcenter..

greets

Re: SHA-1 CHD Calculation

Posted: Sat Jun 16, 2018 6:35 pm
by RomCenter
Romcenter gets the sha-1 from the chd header (see here: http://wiki.romcenter.com/wiki/doku.php?id=chd). It doesn't calculate the full file sha-1 for chd.
This chd should match those of mame. If not this is an issue and should be fixed.

Re: SHA-1 CHD Calculation

Posted: Wed Jun 20, 2018 4:49 pm
by Proffix
ok i understand.

is there a tool which can display me the header, so that i can c&p the data to correct my database?

Re: SHA-1 CHD Calculation

Posted: Wed Jun 27, 2018 8:51 pm
by RomCenter
Any hex editor can do the trick.

Re: SHA-1 CHD Calculation

Posted: Sun Jul 08, 2018 7:04 pm
by Proffix
thank you
that works perfect.

i have a little question. was this planned that the del key has no funktion anymore in the rom list?

Re: SHA-1 CHD Calculation

Posted: Sat Jul 14, 2018 8:32 am
by RomCenter
You're right about the del key. I will map the 'delete' operation like on version 3.