Esempio n. 1
0
void PEM_StripEncapsulatedBoundary(BufferedTransformation& bt, const SecByteBlock& pre, const SecByteBlock& post)
{
    ByteQueue temp;
    SecByteBlock::const_iterator it;
    int n = 1, prePos = -1, postPos = -1;
    
    while(bt.AnyRetrievable() && n++)
    {
        SecByteBlock line, unused;
        PEM_ReadLine(bt, line, unused);
        
        // The write associated with an empty line must to occur. Otherwise, we loose the CR or LF
        //    in an ecrypted private key between the control fields and the encapsulated text.
        //if(line.empty())
        //    continue;
        
        it = Search(line, pre);
        if(it != line.end())
        {
            prePos = n;
            continue;
        }
        it = Search(line, post);
        if(it != line.end())
        {
            postPos = n;
            continue;
        }
        
        PEM_WriteLine(temp, line);
    }
    
    if(prePos == -1)
    {
        string msg = "PEM_StripEncapsulatedBoundary: '";
        msg += string((char*)pre.data(), pre.size()) + "' not found";
        throw InvalidDataFormat(msg);
    }
    
    if(postPos == -1)
    {
        string msg = "PEM_StripEncapsulatedBoundary: '";
        msg += string((char*)post.data(), post.size()) + "' not found";
        throw InvalidDataFormat(msg);
    }
    
    if(prePos > postPos)
        throw InvalidDataFormat("PEM_StripEncapsulatedBoundary: header boundary follows footer boundary");
    
    temp.TransferTo(bt);
}
Esempio n. 2
0
void PutDecodedDatumInto(const TestData &data, const char *name, BufferedTransformation &target)
{
	std::string s1 = GetRequiredDatum(data, name), s2;

	while (!s1.empty())
	{
		while (s1[0] == ' ')
		{
			s1 = s1.substr(1);
			if (s1.empty())
				return; //avoid invalid read if s1 is empty
		}

		int repeat = 1;
		if (s1[0] == 'r')
		{
			repeat = atoi(s1.c_str()+1);
			s1 = s1.substr(s1.find(' ')+1);
		}
		
		s2 = ""; // MSVC 6 doesn't have clear();

		if (s1[0] == '\"')
		{
			s2 = s1.substr(1, s1.find('\"', 1)-1);
			s1 = s1.substr(s2.length() + 2);
		}
		else if (s1.substr(0, 2) == "0x")
		{
			StringSource(s1.substr(2, s1.find(' ')), true, new HexDecoder(new StringSink(s2)));
			s1 = s1.substr(STDMIN(s1.find(' '), s1.length()));
		}
		else
		{
			StringSource(s1.substr(0, s1.find(' ')), true, new HexDecoder(new StringSink(s2)));
			s1 = s1.substr(STDMIN(s1.find(' '), s1.length()));
		}

		ByteQueue q;
		while (repeat--)
		{
			q.Put((const byte *)s2.data(), s2.size());
			if (q.MaxRetrievable() > 4*1024 || repeat == 0)
				q.TransferTo(target);
		}
	}
}