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#81835 - 2003-09-01 03:42 PM MD5()
masken masken MM club member Registered: 2000-11-27 Posts: 1222 Loc: Gothenburg, Sweden	If I remember correctly, there was some suggestion about MD5 before. Anyhow, thought I'd bring it to surface once again as it would be really useful for many things (file verification, uniqueness in naming etc). Was thinking about a function something like this: *MD5("filename",* optional *checksum) ie; to create a checksum: $checksum = MD5("C:\kix32.exe") For checksum creation, the function could return the checksum, or an errorcode. To verify a checksum: $result = MD5("C:\kix32.exe", 882022497d2b3f26d213bcb4b34a1341) For verification, the function could return 0 if it's a match, or either an errorcode or the correct checksum if it's a non-match. ? [ 01. September 2003, 18:11: Message edited by: masken ] _________________________ The tart is out there*
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#81836 - 2003-09-01 03:45 PM Re: MD5()
Howard Bullock Howard Bullock KiX Supporter Registered: 2000-09-15 Posts: 5809 Loc: Harrisburg, PA USA	Since KiXtart can only read a file as ASCII a single line, I do not think that KiXtart can perform that calculation. I do provide a CRC32.exe on my website that can be used for this purpose if you need this functionality. It would be nice to have some of this internal to KiXtart. [ 01. September 2003, 15:46: Message edited by: Howard Bullock ] _________________________ Home page: http://www.kixhelp.com/hb/
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#81837 - 2003-09-01 03:50 PM Re: MD5()
masken masken MM club member Registered: 2000-11-27 Posts: 1222 Loc: Gothenburg, Sweden	Ok.. so KiX can't read a binary? hmm... CRC32 is too weak/unreliable I think, I've had many examples of that (even with smaller files, although CRC32 gets really unreliable at 10mb+), that's why I suggested the 128bit MD5 instead. But if it can't be done, that's too bad I guess Although I can't imagine that it cannot be coded, quite easily too btw; another one that would save some coding is a macro like @TIMESTAMP, that would produce for example: "20030901162047", ie; no slashes or colons etc... [ 01. September 2003, 16:11: Message edited by: masken ] _________________________ The tart is out there
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#81838 - 2003-09-01 04:49 PM Re: MD5()
Les Les KiX Master Registered: 2001-06-11 Posts: 12734 Loc: fortfrances.on.ca	The MD5() suggestion does have merit and possibilities. I challenge the value though of @timestamp. Easily done with Join(Split()). _________________________ Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.
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#81839 - 2003-09-02 05:50 AM Re: MD5()
Kdyer Kdyer KiX Supporter Registered: 2001-01-03 Posts: 6241 Loc: Tigard, OR	quote: that's why I suggested the 128bit MD5 instead Does this mean that Blowfish and other methods are coming? I thought that is what KiXCrypt was about? That is encrypting the script. Kent _________________________ Utilize these resources: UDFs (Full List) KiXtart FAQ & How to's
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#81840 - 2003-09-02 09:59 AM Re: MD5()
Richard H. Richard H. Administrator Registered: 2000-01-24 Posts: 4946 Loc: Leatherhead, Surrey, UK	quote: I thought that is what KiXCrypt was about? That is encrypting the script. Two different things, although they are often closely related. The MD5 checksum is simply used to check with a near degree of certainty that a file (or other arbitrary data) is unchanged. In an administration context this is useful for checking if A file is out of date (version control) A file has been changed (requires backing up) If a downloaded/emailed file is the same as the original In a security context it is useful for checking if a file or email has been tampered with. As a real world example, you can fingerprint all the files on a PC and spot any unexpected changes. You will often see MD5 sums associated with things like PGP messages and files, but the actual algorithm used is normally RSA.
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#81841 - 2003-09-23 06:07 PM Re: MD5()
masken masken MM club member Registered: 2000-11-27 Posts: 1222 Loc: Gothenburg, Sweden	Nicely put, Richard (bad excuse for a bump & Ruud attention ) _________________________ The tart is out there
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