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Re: .sav format [message #52578 is a reply to message #52503]

Sun, 11 February 2007 13:53

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

"Haje Korth" <haje.korth@nospam.jhuapl.edu> writes:
> Sure the idl code can be recovered, just like you can disassemble any
> executable file. You won't recover the variables names but you can see the
> logic of the code. The question is more whether its worth the effort. I
> would be curious in seeing how it's done but asking myself whether I would
> waste my time on it, the answer is absolutely NO. What's the sense? Even the
> ENVI routines are in the end just implementations of publicly available
> algorithms.

It can be done. I did it. I had a legit reason at the time, which
was to recover some routines whose source I had lost... but then it
became a challenge in its own right. The format was not particularly
difficult to decipher: it was almost a direct translation of IDL
structure into a byte-code format, with special records that described
variables, commons, etc. However, since then, I am led to believe
that RSI has encrypted save-files with code (although I haven't
checked).

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		.sav format By: ChristopherFlorio on Mon, 29 January 2007 04:50
		Re: .sav format By: JD Smith on Tue, 30 January 2007 09:58
		Re: .sav format By: Michael Galloy on Tue, 30 January 2007 09:40
		Re: .sav format By: Paolo Grigis on Tue, 30 January 2007 07:36
		Re: .sav format By: Haje Korth on Tue, 30 January 2007 05:21
		Re: .sav format By: Michael Galloy on Mon, 29 January 2007 13:01
		Re: .sav format By: Craig Markwardt on Sat, 03 February 2007 23:04
		Re: .sav format By: JD Smith on Mon, 29 January 2007 12:49
		Re: .sav format By: Haje Korth on Wed, 07 February 2007 05:10
		Re: .sav format By: JD Smith on Tue, 06 February 2007 15:45
		Re: .sav format By: JD Smith on Tue, 06 February 2007 15:44
		Re: .sav format By: Haje Korth on Tue, 06 February 2007 12:00
		Re: .sav format By: Craig Markwardt on Sun, 11 February 2007 13:53
		Re: .sav format By: Guillermo on Tue, 06 February 2007 11:04
		Re: .sav format By: David Fanning on Tue, 06 February 2007 07:42
		Re: .sav format By: Haje Korth on Mon, 05 February 2007 15:02
		Re: .sav format By: JD Smith on Mon, 05 February 2007 12:46
		Re: .sav format By: Haje Korth on Mon, 05 February 2007 10:27
		Re: .sav format By: JD Smith on Mon, 05 February 2007 09:58
		Re: .sav format By: Craig Markwardt on Sun, 11 February 2007 13:47

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