64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
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#include "stdafx.h"
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#include "SecPI.h"
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#include "cipher.hpp"
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//#include "..\Common\Include\McsPI.h"
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#include "McsPI.h"
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BOOL IsValidPlugIn(IMcsDomPlugIn * pPlugIn)
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{
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BOOL bGood = FALSE;
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ISecPlugIn * pSec = NULL;
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HRESULT hr = S_OK;
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hr = pPlugIn->QueryInterface(IID_ISecPlugIn,(void**)&pSec);
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if ( SUCCEEDED(hr) )
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{
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McsChallenge ch;
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LONG one, two;
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LONG time1;
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ULONG size = sizeof(ch);
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srand(GetTickCount());
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one = (LONG)rand();
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ch.lRand1 = one;
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two = (LONG)rand();
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ch.lRand2 = two;
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time1 = GetTickCount();
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ch.lTime = time1;
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SimpleCipher((LPBYTE)&ch,size);
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hr = pSec->Verify((ULONG*)&ch,size);
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if ( SUCCEEDED(hr) )
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{
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SimpleCipher((LPBYTE)&ch,size);
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// verify that the plug-in did the right thing!
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if ( ch.MCS[0] == 'M'
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&& ch.MCS[1] == 'C'
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&& ch.MCS[2] == 'S'
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&& ch.MCS[3] == 0
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)
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{
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if ( ch.lRand1 == (one + two)
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&& ch.lRand2 == (two - one) )
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{
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if ( ch.lTime == time1+100 )
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{
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bGood = TRUE;
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}
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}
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}
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}
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pSec->Release();
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}
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return bGood;
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}
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