RSA format..

[Lindon]

OK I have a client generating RSA keys on the server, for me to decrypt in the plug-in, and they are asking about sizes, and I cant find anything definitive in the documentation.

So how many bits in the RSA key? - they are using .Net 7 and they cant go below 512-bit

are we using some sort of padding too?

[ustk]

@Lindon Hise creates 512bit keys:

RSAKey::createKeyPair(publicKey, privateKey, 512, seeds, 6);

Although I wonder if it would be easy to add a preference menu for longer keys.
I have read somewhere 512bit keys have already been brute forced in a Juce made plugin...
512 is the strict minimum for any online generator, so it might be a good idea to use a longer one, I don't see where it could be a problem to be safer

[ustk]

That been said, I think it is possible to replace the keys in the RSA with a longer one anyway.
But I'm trying to create a preference entry for an "all in Hise" solution...

[Lindon]

@ustk thanks mate.

[ustk]

After creating a preference, I am trying to read it from the projectHandler with no success.

void ProjectHandler::createRSAKey() const
{
	RSAKey publicKey;
	RSAKey privateKey;

	Random r;

	const int seeds[] = { r.nextInt(), r.nextInt(), r.nextInt(), r.nextInt(), r.nextInt(), r.nextInt() };

	auto existingFile = getWorkDirectory().getChildFile("RSA.xml");

	if (existingFile.existsAsFile())
	{
		publicKey = RSAKey(getPublicKeyFromFile(existingFile));
		privateKey = RSAKey(getPrivateKeyFromFile(existingFile));
	}
	else
	{
		//auto length = GET_HISE_SETTING(getMainController()->getSettingsObject(), HiseSettings::Other::RSAKeyLength).toString();
		//auto length = dynamic_cast<GlobalSettingManager*>(getMainController())->getSettingsObject().getSetting(HiseSettings::Other::RSAKeyLength).toString();

		auto length = GET_HISE_SETTING(getMainSynthChain(), HiseSettings::Other::RSAKeyLength).toString();

		RSAKey::createKeyPair(publicKey, privateKey, (int)length, seeds, 6);
	}

I've tried a dozen of things to get the controller but I get an undeclared identifier getMainSynthChain, getProcessor or whatever I put here. I also tried some dynamic_cast but same result...

[ustk]

@Christoph-Hart What are the serverKey1/2 used for in the RSA file? Server encrypted communication?