It doesn't matter in my case but 100000 calls to Encrypt() in VFPEncryption.FLL took less than 1 second. !00000 calls to RC4 took53 seconds ...
-----Original Message----- From: ProfoxTech [mailto:[email protected]] On Behalf Of Paul Newton Sent: 19 November 2014 11:28 To: [email protected] Subject: RE: VFPENCRYPTION Success - Found here http://www.atoutfox.org/articles.asp?ACTION=FCONSULTER&ID=0000000299 FUNCTION RC4 LPARAMETERS cTexte, cClef LOCAL I, J, K, nLongClef, nInt, cResult LOCAL ARRAY aInt(256) FOR I = 1 TO 256 aInt(I) = I-1 ENDFOR J = 0 M.nLongClef = LEN(M.cClef) FOR I = 1 TO 256 J = BITAND(J + aInt(I) + ASC(SUBSTR(M.cClef, MOD(I-1,M.nLongClef)+1, 1)), 255) M.nInt = aInt(I) aInt(I) = aInt(J+1) aInt(J+1) = M.nInt ENDFOR I = 1 J = 0 M.cResult = '' FOR K = 1 TO LEN(M.cTexte) I = BITAND(I, 255) + 1 J = BITAND(J + aInt(I), 255) M.nInt = aInt(I) aInt(I) = aInt(J+1) aInt(J+1) = M.nInt M.cResult = M.cResult + CHR(BITXOR(ASC(SUBSTR(M.cTexte, K, 1)), ; aInt(BITAND(aInt(I) + M.nInt, 255)+1))) ENDFOR RETURN M.cResult -----Original Message----- From: ProfoxTech [mailto:[email protected]] On Behalf Of Alan Bourke Sent: 19 November 2014 09:59 To: [email protected] Subject: Re: VFPENCRYPTION On Wed, 19 Nov 2014, at 08:45 AM, Allen wrote: > If you say that then you would need to stop VFP as it is also based on > the same c runtimes. Hmmm - there is a version of the FLL that uses MSVCR71.DLL, you're right. However the other considerations still apply - there's no source for it, Craig Boyd (may the gods bless him and keep his hair luxuriant) appears to be otherwise engaged and to be honest including it in a commercial application deployed on thousands of sites raises licencing questions too. [excessive quoting removed by server] _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://mail.leafe.com/mailman/listinfo/profox OT-free version of this list: http://mail.leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[email protected] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
