C++ (Cpp) NameValuePairs::GetIntValue Examples

Example #1

File: gfpcrypt.cpp Project: PearsonDevelopersNetwork/LearningStudio-HelloWorld-Python

void DL_GroupParameters_DSA::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
	Integer p, q, g;

	if (alg.GetValue("Modulus", p) && alg.GetValue("SubgroupGenerator", g))
	{
		q = alg.GetValueWithDefault("SubgroupOrder", ComputeGroupOrder(p)/2);
		Initialize(p, q, g);
	}
	else
	{
		int modulusSize = 1024, defaultSubgroupOrderSize;
		alg.GetIntValue("ModulusSize", modulusSize) || alg.GetIntValue("KeySize", modulusSize);

		switch (modulusSize)
		{
		case 1024:
			defaultSubgroupOrderSize = 160;
			break;
		case 2048:
			defaultSubgroupOrderSize = 224;
			break;
		case 3072:
			defaultSubgroupOrderSize = 256;
			break;
		default:
			throw InvalidArgument("DSA: not a valid prime length");
		}

		DL_GroupParameters_GFP::GenerateRandom(rng, CombinedNameValuePairs(alg, MakeParameters(Name::SubgroupOrderSize(), defaultSubgroupOrderSize, false)));
	}
}

Example #2

File: gfpcrypt.cpp Project: axxapp/winxgui

void DL_GroupParameters_DSA::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
	Integer p, q, g;

	if (alg.GetValue("Modulus", p) && alg.GetValue("SubgroupGenerator", g))
	{
		q = alg.GetValueWithDefault("SubgroupOrder", ComputeGroupOrder(p)/2);
	}
	else
	{
		int modulusSize = 1024;
		alg.GetIntValue("ModulusSize", modulusSize) || alg.GetIntValue("KeySize", modulusSize);

		if (!DSA::IsValidPrimeLength(modulusSize))
			throw InvalidArgument("DSA: not a valid prime length");

		SecByteBlock seed(SHA::DIGESTSIZE);
		Integer h;
		int c;

		do
		{
			rng.GenerateBlock(seed, SHA::DIGESTSIZE);
		} while (!DSA::GeneratePrimes(seed, SHA::DIGESTSIZE*8, c, p, modulusSize, q));

		do
		{
			h.Randomize(rng, 2, p-2);
			g = a_exp_b_mod_c(h, (p-1)/q, p);
		} while (g <= 1);
	}

	Initialize(p, q, g);
}

Example #3

File: rsa.cpp Project: sigatrev/Stepmania-3.95

void InvertibleRSAFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
	int modulusSize = 2048;
	alg.GetIntValue("ModulusSize", modulusSize) || alg.GetIntValue("KeySize", modulusSize);

	ASSERT( modulusSize >= 16 );

	m_e = alg.GetValueWithDefault("PublicExponent", Integer(17));

	ASSERT( m_e >= 3 );
	ASSERT( !m_e.IsEven() );

	RSAPrimeSelector selector(m_e);
	const NameValuePairs &primeParam = MakeParametersForTwoPrimesOfEqualSize(modulusSize)
		("PointerToPrimeSelector", selector.GetSelectorPointer());
	m_p.GenerateRandom(rng, primeParam);
	m_q.GenerateRandom(rng, primeParam);

	m_d = EuclideanMultiplicativeInverse(m_e, LCM(m_p-1, m_q-1));
	assert(m_d.IsPositive());

	m_dp = m_d % (m_p-1);
	m_dq = m_d % (m_q-1);
	m_n = m_p * m_q;
	m_u = m_q.InverseMod(m_p);
}

Example #4

File: rw.cpp Project: 007pig/BitcoinArmory

// generate a random private key
void InvertibleRWFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
	int modulusSize = 2048;
	alg.GetIntValue("ModulusSize", modulusSize) || alg.GetIntValue("KeySize", modulusSize);

	if (modulusSize < 16)
		throw InvalidArgument("InvertibleRWFunction: specified modulus length is too small");

	AlgorithmParameters primeParam = MakeParametersForTwoPrimesOfEqualSize(modulusSize);
	m_p.GenerateRandom(rng, CombinedNameValuePairs(primeParam, MakeParameters("EquivalentTo", 3)("Mod", 8)));
	m_q.GenerateRandom(rng, CombinedNameValuePairs(primeParam, MakeParameters("EquivalentTo", 7)("Mod", 8)));

	m_n = m_p * m_q;
	m_u = m_q.InverseMod(m_p);
}

Example #5

File: ida.cpp Project: Audifire/mtasa-blue

void RawIDA::IsolatedInitialize(const NameValuePairs &parameters)
{
	if (!parameters.GetIntValue("RecoveryThreshold", m_threshold))
		throw InvalidArgument("RawIDA: missing RecoveryThreshold argument");

	CRYPTOPP_ASSERT(m_threshold > 0);
	if (m_threshold <= 0)
		throw InvalidArgument("RawIDA: RecoveryThreshold must be greater than 0");

	m_lastMapPosition = m_inputChannelMap.end();
	m_channelsReady = 0;
	m_channelsFinished = 0;
	m_w.New(m_threshold);
	m_y.New(m_threshold);
	m_inputQueues.reserve(m_threshold);

	m_outputChannelIds.clear();
	m_outputChannelIdStrings.clear();
	m_outputQueues.clear();

	word32 outputChannelID;
	if (parameters.GetValue("OutputChannelID", outputChannelID))
		AddOutputChannel(outputChannelID);
	else
	{
		int nShares = parameters.GetIntValueWithDefault("NumberOfShares", m_threshold);
		CRYPTOPP_ASSERT(nShares > 0);
		if (nShares <= 0) {nShares = m_threshold;}
		for (unsigned int i=0; i< (unsigned int)(nShares); i++)
			AddOutputChannel(i);
	}
}

Example #6

File: esign.cpp Project: Audifire/mtasa-blue

void InvertibleESIGNFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &param)
{
	int modulusSize = 1023*2;
	param.GetIntValue("ModulusSize", modulusSize) || param.GetIntValue("KeySize", modulusSize);

	if (modulusSize < 24)
		throw InvalidArgument("InvertibleESIGNFunction: specified modulus size is too small");

	if (modulusSize % 3 != 0)
		throw InvalidArgument("InvertibleESIGNFunction: modulus size must be divisible by 3");

	m_e = param.GetValueWithDefault("PublicExponent", Integer(32));

	if (m_e < 8)
		throw InvalidArgument("InvertibleESIGNFunction: public exponents less than 8 may not be secure");

	// VC70 workaround: putting these after primeParam causes overlapped stack allocation
	ConstByteArrayParameter seedParam;
	SecByteBlock seed;

	const Integer minP = Integer(204) << (modulusSize/3-8);
	const Integer maxP = Integer::Power2(modulusSize/3)-1;
	AlgorithmParameters primeParam = MakeParameters("Min", minP)("Max", maxP)("RandomNumberType", Integer::PRIME);

	if (param.GetValue("Seed", seedParam))
	{
		seed.resize(seedParam.size() + 4);
		memcpy(seed + 4, seedParam.begin(), seedParam.size());

		PutWord(false, BIG_ENDIAN_ORDER, seed, (word32)0);
		m_p.GenerateRandom(rng, CombinedNameValuePairs(primeParam, MakeParameters("Seed", ConstByteArrayParameter(seed))));
		PutWord(false, BIG_ENDIAN_ORDER, seed, (word32)1);
		m_q.GenerateRandom(rng, CombinedNameValuePairs(primeParam, MakeParameters("Seed", ConstByteArrayParameter(seed))));
	}
	else
	{
		m_p.GenerateRandom(rng, primeParam);
		m_q.GenerateRandom(rng, primeParam);
	}

	m_n = m_p * m_p * m_q;

	CRYPTOPP_ASSERT(m_n.BitCount() == (unsigned int)modulusSize);
}

Example #7

File: rsa.cpp Project: BreakoutCoin/Breakout-Chain-Client

void InvertibleRSAFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
	int modulusSize = 2048;
	alg.GetIntValue(Name::ModulusSize(), modulusSize) || alg.GetIntValue(Name::KeySize(), modulusSize);

	assert(modulusSize >= 16);
	if (modulusSize < 16)
		throw InvalidArgument("InvertibleRSAFunction: specified modulus size is too small");

	m_e = alg.GetValueWithDefault(Name::PublicExponent(), Integer(17));

	assert(m_e >= 3); assert(!m_e.IsEven());
	if (m_e < 3 || m_e.IsEven())
		throw InvalidArgument("InvertibleRSAFunction: invalid public exponent");

	RSAPrimeSelector selector(m_e);
	AlgorithmParameters primeParam = MakeParametersForTwoPrimesOfEqualSize(modulusSize)
		(Name::PointerToPrimeSelector(), selector.GetSelectorPointer());
	m_p.GenerateRandom(rng, primeParam);
	m_q.GenerateRandom(rng, primeParam);

	m_d = m_e.InverseMod(LCM(m_p-1, m_q-1));
	assert(m_d.IsPositive());

	m_dp = m_d % (m_p-1);
	m_dq = m_d % (m_q-1);
	m_n = m_p * m_q;
	m_u = m_q.InverseMod(m_p);

	if (FIPS_140_2_ComplianceEnabled())
	{
		RSASS<PKCS1v15, SHA>::Signer signer(*this);
		RSASS<PKCS1v15, SHA>::Verifier verifier(signer);
		SignaturePairwiseConsistencyTest_FIPS_140_Only(signer, verifier);

		RSAES<OAEP<SHA> >::Decryptor decryptor(*this);
		RSAES<OAEP<SHA> >::Encryptor encryptor(decryptor);
		EncryptionPairwiseConsistencyTest_FIPS_140_Only(encryptor, decryptor);
	}
}

Example #8

File: rabin.cpp Project: ste93/thesis_code

// generate a random private key
void InvertibleRabinFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
	int modulusSize = 2048;
	alg.GetIntValue("ModulusSize", modulusSize) || alg.GetIntValue("KeySize", modulusSize);

	if (modulusSize < 16)
		throw InvalidArgument("InvertibleRabinFunction: specified modulus size is too small");

	// VC70 workaround: putting these after primeParam causes overlapped stack allocation
	bool rFound=false, sFound=false;
	Integer t=2;

	const NameValuePairs &primeParam = MakeParametersForTwoPrimesOfEqualSize(modulusSize)
		("EquivalentTo", 3)("Mod", 4);
	m_p.GenerateRandom(rng, primeParam);
	m_q.GenerateRandom(rng, primeParam);

	while (!(rFound && sFound))
	{
		int jp = Jacobi(t, m_p);
		int jq = Jacobi(t, m_q);

		if (!rFound && jp==1 && jq==-1)
		{
			m_r = t;
			rFound = true;
		}

		if (!sFound && jp==-1 && jq==1)
		{
			m_s = t;
			sFound = true;
		}

		++t;
	}

	m_n = m_p * m_q;
	m_u = m_q.InverseMod(m_p);
}

Example #9

File: luc.cpp Project: someone9388/cryptopp

void InvertibleLUCFunction::GenerateRandom(RandomNumberGenerator &rng, const NameValuePairs &alg)
{
	int modulusSize = 2048;
	alg.GetIntValue("ModulusSize", modulusSize) || alg.GetIntValue("KeySize", modulusSize);

	if (modulusSize < 16)
		throw InvalidArgument("InvertibleLUCFunction: specified modulus size is too small");

	m_e = alg.GetValueWithDefault("PublicExponent", Integer(17));

	if (m_e < 5 || m_e.IsEven())
		throw InvalidArgument("InvertibleLUCFunction: invalid public exponent");

	LUCPrimeSelector selector(m_e);
	AlgorithmParameters primeParam = MakeParametersForTwoPrimesOfEqualSize(modulusSize)
		("PointerToPrimeSelector", selector.GetSelectorPointer());
	m_p.GenerateRandom(rng, primeParam);
	m_q.GenerateRandom(rng, primeParam);

	m_n = m_p * m_q;
	m_u = m_q.InverseMod(m_p);
}