private static DHPublicKeyParameters ReadPkcsDHParam(DerObjectIdentifier algOid, BigInteger y, Asn1Sequence seq)
{
DHParameter dHParameter = new DHParameter(seq);
int l = dHParameter.L?.IntValue ?? 0;
DHParameters parameters = new DHParameters(dHParameter.P, dHParameter.G, null, l);
return(new DHPublicKeyParameters(y, parameters, algOid));
}
private static DHPublicKeyParameters ReadPkcsDHParam(DerObjectIdentifier algOid, BigInteger y, Asn1Sequence seq)
{
DHParameter parameter = new DHParameter(seq);
BigInteger l = parameter.L;
int num = (l != null) ? l.IntValue : 0;
return(new DHPublicKeyParameters(y, new DHParameters(parameter.P, parameter.G, null, num), algOid));
}
private static DHPublicKeyParameters ReadPkcsDHParam(DerObjectIdentifier algOid,
BigInteger y, Asn1Sequence seq)
{
DHParameter para = new DHParameter(seq);
BigInteger lVal = para.L;
int l = lVal == null ? 0 : lVal.IntValue;
DHParameters dhParams = new DHParameters(para.P, para.G, null, l);
return(new DHPublicKeyParameters(y, dhParams, algOid));
}
private static DHDomainParameters DecodeDomainParameters(AlgorithmIdentifier algorithmIdentifier)
{
DerObjectIdentifier id = algorithmIdentifier.Algorithm;
Asn1Encodable parameters = algorithmIdentifier.Parameters;
if (parameters == null)
{
throw new ArgumentException("AlgorithmIdentifier parameters cannot be empty");
}
if (id.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter elg = ElGamalParameter.GetInstance(parameters);
return(new DHDomainParameters(elg.P, elg.G));
}
// we need the PKCS check to handle older keys marked with the X9 oid.
if (id.Equals(PkcsObjectIdentifiers.DhKeyAgreement) || KeyUtils.IsDHPkcsParam(parameters))
{
DHParameter dhParameters = DHParameter.GetInstance(parameters);
if (dhParameters.L != null)
{
return(new DHDomainParameters(dhParameters.P, null, dhParameters.G, dhParameters.L.IntValue));
}
else
{
return(new DHDomainParameters(dhParameters.P, dhParameters.G));
}
}
else if (id.Equals(X9ObjectIdentifiers.DHPublicNumber))
{
Asn1.X9.DHDomainParameters dhParameters = Asn1.X9.DHDomainParameters.GetInstance(parameters);
if (dhParameters.ValidationParms != null)
{
return(new DHDomainParameters(GetValue(dhParameters.P), GetValue(dhParameters.Q), GetValue(dhParameters.G), GetValue(dhParameters.J),
new DHValidationParameters(dhParameters.ValidationParms.Seed.GetBytes(), dhParameters.ValidationParms.PgenCounter.Value.IntValue)));
}
else
{
return(new DHDomainParameters(GetValue(dhParameters.P), GetValue(dhParameters.Q), GetValue(dhParameters.G), GetValue(dhParameters.J), null));
}
}
else
{
throw new ArgumentException("Unknown algorithm type: " + id);
}
}
/// <summary>
/// Computes the transformation matrix for any given DHParameter.
/// </summary>
/// <param name="dhParam"> DHParameter for which the transformation matrix is to be determined. </param>
/// <returns></returns>
public static DenseMatrix GetDenseMatrixForDhParameter(DHParameter dhParam)
{
// Source: http://www.oemg.ac.at/Mathe-Brief/fba2015/VWA_Prutsch.pdf, Page 19
// http://www4.cs.umanitoba.ca/~jacky/Robotics/Papers/spong_kinematics.pdf, Page 63
// https://de.wikipedia.org/wiki/Denavit-Hartenberg-Transformation
var firstColumn = DenseVector.OfArray(new double[] {
Math.Cos(dhParam.Theta),
Math.Sin(dhParam.Theta),
0,
0
});
var secondColumn = DenseVector.OfArray(new double[] {
-Math.Sin(dhParam.Theta) * Math.Cos(dhParam.Alpha),
Math.Cos(dhParam.Theta) * Math.Cos(dhParam.Alpha),
Math.Sin(dhParam.Alpha),
0
});
var thirdColumn = DenseVector.OfArray(new double[] {
Math.Sin(dhParam.Theta) * Math.Sin(dhParam.Alpha),
-Math.Cos(dhParam.Theta) * Math.Sin(dhParam.Alpha),
Math.Cos(dhParam.Alpha),
0
});
var fourthColumn = DenseVector.OfArray(new double[] {
dhParam.A *Math.Cos(dhParam.Theta),
dhParam.A * Math.Sin(dhParam.Theta),
dhParam.D,
1
});
var columns = new DenseVector[] { firstColumn, secondColumn, thirdColumn, fourthColumn };
var matrix = DenseMatrix.OfColumnVectors(columns);
return(matrix);
}
public static AsymmetricKeyParameter CreateKey(PrivateKeyInfo keyInfo)
{
AlgorithmIdentifier privateKeyAlgorithm = keyInfo.PrivateKeyAlgorithm;
DerObjectIdentifier objectID = privateKeyAlgorithm.ObjectID;
if (objectID.Equals(PkcsObjectIdentifiers.RsaEncryption) || objectID.Equals(X509ObjectIdentifiers.IdEARsa) || objectID.Equals(PkcsObjectIdentifiers.IdRsassaPss) || objectID.Equals(PkcsObjectIdentifiers.IdRsaesOaep))
{
RsaPrivateKeyStructure instance = RsaPrivateKeyStructure.GetInstance(keyInfo.ParsePrivateKey());
return(new RsaPrivateCrtKeyParameters(instance.Modulus, instance.PublicExponent, instance.PrivateExponent, instance.Prime1, instance.Prime2, instance.Exponent1, instance.Exponent2, instance.Coefficient));
}
if (objectID.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
{
DHParameter dHParameter = new DHParameter(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
DerInteger derInteger = (DerInteger)keyInfo.ParsePrivateKey();
BigInteger l = dHParameter.L;
int l2 = (l == null) ? 0 : l.IntValue;
DHParameters parameters = new DHParameters(dHParameter.P, dHParameter.G, null, l2);
return(new DHPrivateKeyParameters(derInteger.Value, parameters, objectID));
}
if (objectID.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter elGamalParameter = new ElGamalParameter(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
DerInteger derInteger2 = (DerInteger)keyInfo.ParsePrivateKey();
return(new ElGamalPrivateKeyParameters(derInteger2.Value, new ElGamalParameters(elGamalParameter.P, elGamalParameter.G)));
}
if (objectID.Equals(X9ObjectIdentifiers.IdDsa))
{
DerInteger derInteger3 = (DerInteger)keyInfo.ParsePrivateKey();
Asn1Encodable parameters2 = privateKeyAlgorithm.Parameters;
DsaParameters parameters3 = null;
if (parameters2 != null)
{
DsaParameter instance2 = DsaParameter.GetInstance(parameters2.ToAsn1Object());
parameters3 = new DsaParameters(instance2.P, instance2.Q, instance2.G);
}
return(new DsaPrivateKeyParameters(derInteger3.Value, parameters3));
}
if (objectID.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters x962Parameters = new X962Parameters(privateKeyAlgorithm.Parameters.ToAsn1Object());
X9ECParameters x9ECParameters;
if (x962Parameters.IsNamedCurve)
{
x9ECParameters = ECKeyPairGenerator.FindECCurveByOid((DerObjectIdentifier)x962Parameters.Parameters);
}
else
{
x9ECParameters = new X9ECParameters((Asn1Sequence)x962Parameters.Parameters);
}
ECPrivateKeyStructure eCPrivateKeyStructure = new ECPrivateKeyStructure(Asn1Sequence.GetInstance(keyInfo.ParsePrivateKey()));
BigInteger key = eCPrivateKeyStructure.GetKey();
if (x962Parameters.IsNamedCurve)
{
return(new ECPrivateKeyParameters("EC", key, (DerObjectIdentifier)x962Parameters.Parameters));
}
ECDomainParameters parameters4 = new ECDomainParameters(x9ECParameters.Curve, x9ECParameters.G, x9ECParameters.N, x9ECParameters.H, x9ECParameters.GetSeed());
return(new ECPrivateKeyParameters(key, parameters4));
}
else if (objectID.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
Gost3410PublicKeyAlgParameters gost3410PublicKeyAlgParameters = new Gost3410PublicKeyAlgParameters(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
Asn1Object asn1Object = keyInfo.ParsePrivateKey();
ECPrivateKeyStructure eCPrivateKeyStructure2;
if (asn1Object is DerInteger)
{
eCPrivateKeyStructure2 = new ECPrivateKeyStructure(((DerInteger)asn1Object).Value);
}
else
{
eCPrivateKeyStructure2 = ECPrivateKeyStructure.GetInstance(asn1Object);
}
if (ECGost3410NamedCurves.GetByOid(gost3410PublicKeyAlgParameters.PublicKeyParamSet) == null)
{
throw new ArgumentException("Unrecognized curve OID for GostR3410x2001 private key");
}
return(new ECPrivateKeyParameters("ECGOST3410", eCPrivateKeyStructure2.GetKey(), gost3410PublicKeyAlgParameters.PublicKeyParamSet));
}
else
{
if (objectID.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters gost3410PublicKeyAlgParameters2 = new Gost3410PublicKeyAlgParameters(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
DerOctetString derOctetString = (DerOctetString)keyInfo.ParsePrivateKey();
BigInteger x = new BigInteger(1, Arrays.Reverse(derOctetString.GetOctets()));
return(new Gost3410PrivateKeyParameters(x, gost3410PublicKeyAlgParameters2.PublicKeyParamSet));
}
throw new SecurityUtilityException("algorithm identifier in key not recognised");
}
}
public static AsymmetricKeyParameter CreateKey(SubjectPublicKeyInfo keyInfo)
{
AlgorithmIdentifier algId = keyInfo.getAlgorithmId();
if (algId.getObjectId().Equals(PKCSObjectIdentifiers.rsaEncryption) ||
algId.getObjectId().Equals(X509ObjectIdentifiers.id_ea_rsa))
{
RSAPublicKeyStructure pubKey = new RSAPublicKeyStructure((ASN1Sequence)keyInfo.getPublicKey());
return(new RSAKeyParameters(false, pubKey.getModulus(), pubKey.getPublicExponent()));
}
else if (algId.getObjectId().Equals(PKCSObjectIdentifiers.dhKeyAgreement) ||
algId.getObjectId().Equals(X9ObjectIdentifiers.dhpublicnumber))
{
DHParameter para = new DHParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
DERInteger derY = (DERInteger)keyInfo.getPublicKey();
return(new DHPublicKeyParameters(derY.getValue(), new DHParameters(para.getP(), para.getG())));
}
else if (algId.getObjectId().Equals(OIWObjectIdentifiers.elGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
DERInteger derY = (DERInteger)keyInfo.getPublicKey();
return(new ElGamalPublicKeyParameters(derY.getValue(), new ElGamalParameters(para.getP(), para.getG())));
}
else if (algId.getObjectId().Equals(X9ObjectIdentifiers.id_dsa) ||
algId.getObjectId().Equals(OIWObjectIdentifiers.dsaWithSHA1))
{
DSAParameter para = new DSAParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
DERInteger derY = (DERInteger)keyInfo.getPublicKey();
return(new DSAPublicKeyParameters(derY.getValue(), new DSAParameters(para.getP(), para.getQ(), para.getG())));
}
else if (algId.getObjectId().Equals(X9ObjectIdentifiers.id_ecPublicKey))
{
X962Parameters para = new X962Parameters((ASN1Object)keyInfo.getAlgorithmId().getParameters());
ECDomainParameters dParams = null;
if (para.isNamedCurve())
{
DERObjectIdentifier oid = (DERObjectIdentifier)para.getParameters();
X9ECParameters ecP = X962NamedCurves.getByOID(oid);
dParams = new ECDomainParameters(
ecP.getCurve(),
ecP.getG(),
ecP.getN(),
ecP.getH(),
ecP.getSeed());
}
else
{
X9ECParameters ecP = new X9ECParameters((ASN1Sequence)para.getParameters().toASN1Object());
dParams = new ECDomainParameters(
ecP.getCurve(),
ecP.getG(),
ecP.getN(),
ecP.getH(),
ecP.getSeed());
}
DERBitString bits = keyInfo.getPublicKeyData();
byte[] data = bits.getBytes();
ASN1OctetString key = new DEROctetString(data);
X9ECPoint derQ = new X9ECPoint(dParams.getCurve(), key);
return(new ECPublicKeyParameters(derQ.getPoint(), dParams));
}
else
{
throw new Exception("algorithm identifier in key not recognised");
}
}
public static AsymmetricKeyParameter CreateKey(
PrivateKeyInfo keyInfo)
{
AlgorithmIdentifier algID = keyInfo.PrivateKeyAlgorithm;
DerObjectIdentifier algOid = algID.Algorithm;
// TODO See RSAUtil.isRsaOid in Java build
if (algOid.Equals(PkcsObjectIdentifiers.RsaEncryption) ||
algOid.Equals(X509ObjectIdentifiers.IdEARsa) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsassaPss) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsaesOaep))
{
RsaPrivateKeyStructure keyStructure = RsaPrivateKeyStructure.GetInstance(keyInfo.ParsePrivateKey());
return(new RsaPrivateCrtKeyParameters(
keyStructure.Modulus,
keyStructure.PublicExponent,
keyStructure.PrivateExponent,
keyStructure.Prime1,
keyStructure.Prime2,
keyStructure.Exponent1,
keyStructure.Exponent2,
keyStructure.Coefficient));
}
// TODO?
// else if (algOid.Equals(X9ObjectIdentifiers.DHPublicNumber))
else if (algOid.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
{
DHParameter para = new DHParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derX = (DerInteger)keyInfo.ParsePrivateKey();
BigInteger lVal = para.L;
int l = lVal == null ? 0 : lVal.IntValue;
DHParameters dhParams = new DHParameters(para.P, para.G, null, l);
return(new DHPrivateKeyParameters(derX.Value, dhParams, algOid));
}
else if (algOid.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derX = (DerInteger)keyInfo.ParsePrivateKey();
return(new ElGamalPrivateKeyParameters(
derX.Value,
new ElGamalParameters(para.P, para.G)));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdDsa))
{
DerInteger derX = (DerInteger)keyInfo.ParsePrivateKey();
Asn1Encodable ae = algID.Parameters;
DsaParameters parameters = null;
if (ae != null)
{
DsaParameter para = DsaParameter.GetInstance(ae.ToAsn1Object());
parameters = new DsaParameters(para.P, para.Q, para.G);
}
return(new DsaPrivateKeyParameters(derX.Value, parameters));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters para = X962Parameters.GetInstance(algID.Parameters.ToAsn1Object());
X9ECParameters x9;
if (para.IsNamedCurve)
{
x9 = ECKeyPairGenerator.FindECCurveByOid((DerObjectIdentifier)para.Parameters);
}
else
{
x9 = new X9ECParameters((Asn1Sequence)para.Parameters);
}
ECPrivateKeyStructure ec = ECPrivateKeyStructure.GetInstance(keyInfo.ParsePrivateKey());
BigInteger d = ec.GetKey();
if (para.IsNamedCurve)
{
return(new ECPrivateKeyParameters("EC", d, (DerObjectIdentifier)para.Parameters));
}
ECDomainParameters dParams = new ECDomainParameters(x9.Curve, x9.G, x9.N, x9.H, x9.GetSeed());
return(new ECPrivateKeyParameters(d, dParams));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
Gost3410PublicKeyAlgParameters gostParams = Gost3410PublicKeyAlgParameters.GetInstance(
algID.Parameters.ToAsn1Object());
ECDomainParameters ecP = ECGost3410NamedCurves.GetByOid(gostParams.PublicKeyParamSet);
if (ecP == null)
{
throw new ArgumentException("Unrecognized curve OID for GostR3410x2001 private key");
}
Asn1Object privKey = keyInfo.ParsePrivateKey();
ECPrivateKeyStructure ec;
if (privKey is DerInteger)
{
ec = new ECPrivateKeyStructure(ecP.N.BitLength, ((DerInteger)privKey).PositiveValue);
}
else
{
ec = ECPrivateKeyStructure.GetInstance(privKey);
}
return(new ECPrivateKeyParameters("ECGOST3410", ec.GetKey(), gostParams.PublicKeyParamSet));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters gostParams = Gost3410PublicKeyAlgParameters.GetInstance(algID.Parameters);
Asn1Object privKey = keyInfo.ParsePrivateKey();
BigInteger x;
if (privKey is DerInteger)
{
x = DerInteger.GetInstance(privKey).PositiveValue;
}
else
{
x = new BigInteger(1, Arrays.Reverse(Asn1OctetString.GetInstance(privKey).GetOctets()));
}
return(new Gost3410PrivateKeyParameters(x, gostParams.PublicKeyParamSet));
}
else if (algOid.Equals(EdECObjectIdentifiers.id_X25519))
{
return(new X25519PrivateKeyParameters(GetRawKey(keyInfo, X25519PrivateKeyParameters.KeySize), 0));
}
else if (algOid.Equals(EdECObjectIdentifiers.id_X448))
{
return(new X448PrivateKeyParameters(GetRawKey(keyInfo, X448PrivateKeyParameters.KeySize), 0));
}
else if (algOid.Equals(EdECObjectIdentifiers.id_Ed25519))
{
return(new Ed25519PrivateKeyParameters(GetRawKey(keyInfo, Ed25519PrivateKeyParameters.KeySize), 0));
}
else if (algOid.Equals(EdECObjectIdentifiers.id_Ed448))
{
return(new Ed448PrivateKeyParameters(GetRawKey(keyInfo, Ed448PrivateKeyParameters.KeySize), 0));
}
else if (algOid.Equals(RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512) ||
algOid.Equals(RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256))
{
Gost3410PublicKeyAlgParameters gostParams = Gost3410PublicKeyAlgParameters.GetInstance(keyInfo.PrivateKeyAlgorithm.Parameters);
ECGost3410Parameters ecSpec = null;
BigInteger d = null;
Asn1Object p = keyInfo.PrivateKeyAlgorithm.Parameters.ToAsn1Object();
if (p is Asn1Sequence && (Asn1Sequence.GetInstance(p).Count == 2 || Asn1Sequence.GetInstance(p).Count == 3))
{
ECDomainParameters ecP = ECGost3410NamedCurves.GetByOid(gostParams.PublicKeyParamSet);
ecSpec = new ECGost3410Parameters(
new ECNamedDomainParameters(
gostParams.PublicKeyParamSet, ecP),
gostParams.PublicKeyParamSet,
gostParams.DigestParamSet,
gostParams.EncryptionParamSet);
Asn1OctetString privEnc = keyInfo.PrivateKeyData;
if (privEnc.GetOctets().Length == 32 || privEnc.GetOctets().Length == 64)
{
byte[] dVal = Arrays.Reverse(privEnc.GetOctets());
d = new BigInteger(1, dVal);
}
else
{
Asn1Encodable privKey = keyInfo.ParsePrivateKey();
if (privKey is DerInteger)
{
d = DerInteger.GetInstance(privKey).PositiveValue;
}
else
{
byte[] dVal = Arrays.Reverse(Asn1OctetString.GetInstance(privKey).GetOctets());
d = new BigInteger(1, dVal);
}
}
}
else
{
X962Parameters parameters = X962Parameters.GetInstance(keyInfo.PrivateKeyAlgorithm.Parameters);
if (parameters.IsNamedCurve)
{
DerObjectIdentifier oid = DerObjectIdentifier.GetInstance(parameters.Parameters);
X9ECParameters ecP = ECNamedCurveTable.GetByOid(oid);
if (ecP == null)
{
ECDomainParameters gParam = ECGost3410NamedCurves.GetByOid(oid);
ecSpec = new ECGost3410Parameters(new ECNamedDomainParameters(
oid,
gParam.Curve,
gParam.G,
gParam.N,
gParam.H,
gParam.GetSeed()), gostParams.PublicKeyParamSet, gostParams.DigestParamSet,
gostParams.EncryptionParamSet);
}
else
{
ecSpec = new ECGost3410Parameters(new ECNamedDomainParameters(
oid,
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed()), gostParams.PublicKeyParamSet, gostParams.DigestParamSet,
gostParams.EncryptionParamSet);
}
}
else if (parameters.IsImplicitlyCA)
{
ecSpec = null;
}
else
{
X9ECParameters ecP = X9ECParameters.GetInstance(parameters.Parameters);
ecSpec = new ECGost3410Parameters(new ECNamedDomainParameters(
algOid,
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed()),
gostParams.PublicKeyParamSet,
gostParams.DigestParamSet,
gostParams.EncryptionParamSet);
}
Asn1Encodable privKey = keyInfo.ParsePrivateKey();
if (privKey is DerInteger)
{
DerInteger derD = DerInteger.GetInstance(privKey);
d = derD.Value;
}
else
{
ECPrivateKeyStructure ec = ECPrivateKeyStructure.GetInstance(privKey);
d = ec.GetKey();
}
}
return(new ECPrivateKeyParameters(
d,
new ECGost3410Parameters(
ecSpec,
gostParams.PublicKeyParamSet,
gostParams.DigestParamSet,
gostParams.EncryptionParamSet)));
}
else
{
throw new SecurityUtilityException("algorithm identifier in private key not recognised");
}
}
/**
* Create a PrivateKeyInfo representation of a private key with attributes.
*
* @param privateKey the key to be encoded into the info object.
* @param attributes the set of attributes to be included.
* @return the appropriate PrivateKeyInfo
* @throws java.io.IOException on an error encoding the key
*/
public static PrivateKeyInfo CreatePrivateKeyInfo(AsymmetricKeyParameter privateKey, Asn1Set attributes)
{
if (privateKey == null)
{
throw new ArgumentNullException("privateKey");
}
if (!privateKey.IsPrivate)
{
throw new ArgumentException("Public key passed - private key expected", "privateKey");
}
if (privateKey is ElGamalPrivateKeyParameters)
{
ElGamalPrivateKeyParameters _key = (ElGamalPrivateKeyParameters)privateKey;
ElGamalParameters egp = _key.Parameters;
return(new PrivateKeyInfo(
new AlgorithmIdentifier(OiwObjectIdentifiers.ElGamalAlgorithm, new ElGamalParameter(egp.P, egp.G).ToAsn1Object()),
new DerInteger(_key.X),
attributes));
}
if (privateKey is DsaPrivateKeyParameters)
{
DsaPrivateKeyParameters _key = (DsaPrivateKeyParameters)privateKey;
DsaParameters dp = _key.Parameters;
return(new PrivateKeyInfo(
new AlgorithmIdentifier(X9ObjectIdentifiers.IdDsa, new DsaParameter(dp.P, dp.Q, dp.G).ToAsn1Object()),
new DerInteger(_key.X),
attributes));
}
if (privateKey is DHPrivateKeyParameters)
{
DHPrivateKeyParameters _key = (DHPrivateKeyParameters)privateKey;
DHParameter p = new DHParameter(
_key.Parameters.P, _key.Parameters.G, _key.Parameters.L);
return(new PrivateKeyInfo(
new AlgorithmIdentifier(_key.AlgorithmOid, p.ToAsn1Object()),
new DerInteger(_key.X),
attributes));
}
if (privateKey is RsaKeyParameters)
{
AlgorithmIdentifier algID = new AlgorithmIdentifier(
PkcsObjectIdentifiers.RsaEncryption, DerNull.Instance);
RsaPrivateKeyStructure keyStruct;
if (privateKey is RsaPrivateCrtKeyParameters)
{
RsaPrivateCrtKeyParameters _key = (RsaPrivateCrtKeyParameters)privateKey;
keyStruct = new RsaPrivateKeyStructure(
_key.Modulus,
_key.PublicExponent,
_key.Exponent,
_key.P,
_key.Q,
_key.DP,
_key.DQ,
_key.QInv);
}
else
{
RsaKeyParameters _key = (RsaKeyParameters)privateKey;
keyStruct = new RsaPrivateKeyStructure(
_key.Modulus,
BigInteger.Zero,
_key.Exponent,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero);
}
return(new PrivateKeyInfo(algID, keyStruct.ToAsn1Object(), attributes));
}
if (privateKey is ECPrivateKeyParameters)
{
ECPrivateKeyParameters priv = (ECPrivateKeyParameters)privateKey;
DerBitString publicKey = new DerBitString(ECKeyPairGenerator.GetCorrespondingPublicKey(priv).Q.GetEncoded(false));
ECDomainParameters dp = priv.Parameters;
int orderBitLength = dp.N.BitLength;
AlgorithmIdentifier algID;
ECPrivateKeyStructure ec;
if (priv.AlgorithmName == "ECGOST3410")
{
if (priv.PublicKeyParamSet == null)
{
throw BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
priv.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet);
algID = new AlgorithmIdentifier(CryptoProObjectIdentifiers.GostR3410x2001, gostParams);
// TODO Do we need to pass any parameters here?
ec = new ECPrivateKeyStructure(orderBitLength, priv.D, publicKey, null);
}
else
{
X962Parameters x962;
if (priv.PublicKeyParamSet == null)
{
X9ECParameters ecP = new X9ECParameters(dp.Curve, dp.G, dp.N, dp.H, dp.GetSeed());
x962 = new X962Parameters(ecP);
}
else
{
x962 = new X962Parameters(priv.PublicKeyParamSet);
}
ec = new ECPrivateKeyStructure(orderBitLength, priv.D, publicKey, x962);
algID = new AlgorithmIdentifier(X9ObjectIdentifiers.IdECPublicKey, x962);
}
return(new PrivateKeyInfo(algID, ec, attributes));
}
if (privateKey is Gost3410PrivateKeyParameters)
{
Gost3410PrivateKeyParameters _key = (Gost3410PrivateKeyParameters)privateKey;
if (_key.PublicKeyParamSet == null)
{
throw BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
byte[] keyEnc = _key.X.ToByteArrayUnsigned();
byte[] keyBytes = new byte[keyEnc.Length];
for (int i = 0; i != keyBytes.Length; i++)
{
keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // must be little endian
}
Gost3410PublicKeyAlgParameters algParams = new Gost3410PublicKeyAlgParameters(
_key.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet, null);
AlgorithmIdentifier algID = new AlgorithmIdentifier(
CryptoProObjectIdentifiers.GostR3410x94,
algParams.ToAsn1Object());
return(new PrivateKeyInfo(algID, new DerOctetString(keyBytes), attributes));
}
if (privateKey is X448PrivateKeyParameters)
{
X448PrivateKeyParameters key = (X448PrivateKeyParameters)privateKey;
return(new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X448),
new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded()));
}
if (privateKey is X25519PrivateKeyParameters)
{
X25519PrivateKeyParameters key = (X25519PrivateKeyParameters)privateKey;
return(new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X25519),
new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded()));
}
if (privateKey is Ed448PrivateKeyParameters)
{
Ed448PrivateKeyParameters key = (Ed448PrivateKeyParameters)privateKey;
return(new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed448),
new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded()));
}
if (privateKey is Ed25519PrivateKeyParameters)
{
Ed25519PrivateKeyParameters key = (Ed25519PrivateKeyParameters)privateKey;
return(new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed25519),
new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded()));
}
throw new ArgumentException("Class provided is not convertible: " + BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetTypeName(privateKey));
}
public static AsymmetricKeyParameter CreateKey(
PrivateKeyInfo keyInfo)
{
AlgorithmIdentifier algID = keyInfo.AlgorithmID;
DerObjectIdentifier algOid = algID.ObjectID;
// TODO See RSAUtil.isRsaOid in Java build
if (algOid.Equals(PkcsObjectIdentifiers.RsaEncryption) ||
algOid.Equals(X509ObjectIdentifiers.IdEARsa) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsassaPss) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsaesOaep))
{
RsaPrivateKeyStructure keyStructure = new RsaPrivateKeyStructure(
Asn1Sequence.GetInstance(keyInfo.PrivateKey));
return(new RsaPrivateCrtKeyParameters(
keyStructure.Modulus,
keyStructure.PublicExponent,
keyStructure.PrivateExponent,
keyStructure.Prime1,
keyStructure.Prime2,
keyStructure.Exponent1,
keyStructure.Exponent2,
keyStructure.Coefficient));
}
else if (algOid.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
{
DHParameter para = new DHParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derX = (DerInteger)keyInfo.PrivateKey;
BigInteger lVal = para.L;
int l = lVal == null ? 0 : lVal.IntValue;
DHParameters dhParams = new DHParameters(para.P, para.G, null, l);
return(new DHPrivateKeyParameters(derX.Value, dhParams));
}
else if (algOid.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derX = (DerInteger)keyInfo.PrivateKey;
return(new ElGamalPrivateKeyParameters(
derX.Value,
new ElGamalParameters(para.P, para.G)));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdDsa))
{
DerInteger derX = (DerInteger)keyInfo.PrivateKey;
Asn1Encodable ae = algID.Parameters;
DsaParameters parameters = null;
if (ae != null)
{
DsaParameter para = DsaParameter.GetInstance(ae.ToAsn1Object());
parameters = new DsaParameters(para.P, para.Q, para.G);
}
return(new DsaPrivateKeyParameters(derX.Value, parameters));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters para = new X962Parameters(algID.Parameters.ToAsn1Object());
X9ECParameters ecP;
if (para.IsNamedCurve)
{
// TODO ECGost3410NamedCurves support (returns ECDomainParameters though)
DerObjectIdentifier oid = (DerObjectIdentifier)para.Parameters;
ecP = X962NamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = SecNamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = NistNamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = TeleTrusTNamedCurves.GetByOid(oid);
}
}
}
}
else
{
ecP = new X9ECParameters((Asn1Sequence)para.Parameters);
}
ECDomainParameters dParams = new ECDomainParameters(
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed());
ECPrivateKeyStructure ec = new ECPrivateKeyStructure(
Asn1Sequence.GetInstance(keyInfo.PrivateKey));
return(new ECPrivateKeyParameters(ec.GetKey(), dParams));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
ECPrivateKeyStructure ec = new ECPrivateKeyStructure(
Asn1Sequence.GetInstance(keyInfo.PrivateKey));
ECDomainParameters ecP = ECGost3410NamedCurves.GetByOid(gostParams.PublicKeyParamSet);
if (ecP == null)
{
return(null);
}
return(new ECPrivateKeyParameters(ec.GetKey(), gostParams.PublicKeyParamSet));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerOctetString derX = (DerOctetString)keyInfo.PrivateKey;
byte[] keyEnc = derX.GetOctets();
byte[] keyBytes = new byte[keyEnc.Length];
for (int i = 0; i != keyEnc.Length; i++)
{
keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // was little endian
}
BigInteger x = new BigInteger(1, keyBytes);
return(new Gost3410PrivateKeyParameters(x, gostParams.PublicKeyParamSet));
}
else
{
throw new SecurityUtilityException("algorithm identifier in key not recognised");
}
}
public static AsymmetricKeyParameter CreateKey(
PrivateKeyInfo keyInfo)
{
AlgorithmIdentifier algID = keyInfo.PrivateKeyAlgorithm;
DerObjectIdentifier algOid = algID.Algorithm;
// TODO See RSAUtil.isRsaOid in Java build
if (algOid.Equals(PkcsObjectIdentifiers.RsaEncryption) ||
algOid.Equals(X509ObjectIdentifiers.IdEARsa) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsassaPss) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsaesOaep))
{
RsaPrivateKeyStructure keyStructure = RsaPrivateKeyStructure.GetInstance(keyInfo.ParsePrivateKey());
return(new RsaPrivateCrtKeyParameters(
keyStructure.Modulus,
keyStructure.PublicExponent,
keyStructure.PrivateExponent,
keyStructure.Prime1,
keyStructure.Prime2,
keyStructure.Exponent1,
keyStructure.Exponent2,
keyStructure.Coefficient));
}
// TODO?
// else if (algOid.Equals(X9ObjectIdentifiers.DHPublicNumber))
else if (algOid.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
{
DHParameter para = new DHParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derX = (DerInteger)keyInfo.ParsePrivateKey();
BigInteger lVal = para.L;
int l = lVal == null ? 0 : lVal.IntValue;
DHParameters dhParams = new DHParameters(para.P, para.G, null, l);
return(new DHPrivateKeyParameters(derX.Value, dhParams, algOid));
}
else if (algOid.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derX = (DerInteger)keyInfo.ParsePrivateKey();
return(new ElGamalPrivateKeyParameters(
derX.Value,
new ElGamalParameters(para.P, para.G)));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdDsa))
{
DerInteger derX = (DerInteger)keyInfo.ParsePrivateKey();
Asn1Encodable ae = algID.Parameters;
DsaParameters parameters = null;
if (ae != null)
{
DsaParameter para = DsaParameter.GetInstance(ae.ToAsn1Object());
parameters = new DsaParameters(para.P, para.Q, para.G);
}
return(new DsaPrivateKeyParameters(derX.Value, parameters));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters para = new X962Parameters(algID.Parameters.ToAsn1Object());
X9ECParameters x9;
if (para.IsNamedCurve)
{
x9 = ECKeyPairGenerator.FindECCurveByOid((DerObjectIdentifier)para.Parameters);
}
else
{
x9 = new X9ECParameters((Asn1Sequence)para.Parameters);
}
ECPrivateKeyStructure ec = ECPrivateKeyStructure.GetInstance(keyInfo.ParsePrivateKey());
BigInteger d = ec.GetKey();
if (para.IsNamedCurve)
{
return(new ECPrivateKeyParameters("EC", d, (DerObjectIdentifier)para.Parameters));
}
ECDomainParameters dParams = new ECDomainParameters(x9.Curve, x9.G, x9.N, x9.H, x9.GetSeed());
return(new ECPrivateKeyParameters(d, dParams));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
ECDomainParameters ecP = ECGost3410NamedCurves.GetByOid(gostParams.PublicKeyParamSet);
if (ecP == null)
{
throw new ArgumentException("Unrecognized curve OID for GostR3410x2001 private key");
}
Asn1Object privKey = keyInfo.ParsePrivateKey();
ECPrivateKeyStructure ec;
if (privKey is DerInteger)
{
ec = new ECPrivateKeyStructure(ecP.N.BitLength, ((DerInteger)privKey).PositiveValue);
}
else
{
ec = ECPrivateKeyStructure.GetInstance(privKey);
}
return(new ECPrivateKeyParameters("ECGOST3410", ec.GetKey(), gostParams.PublicKeyParamSet));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters gostParams = Gost3410PublicKeyAlgParameters.GetInstance(algID.Parameters);
Asn1Object privKey = keyInfo.ParsePrivateKey();
BigInteger x;
if (privKey is DerInteger)
{
x = DerInteger.GetInstance(privKey).PositiveValue;
}
else
{
x = new BigInteger(1, Arrays.Reverse(Asn1OctetString.GetInstance(privKey).GetOctets()));
}
return(new Gost3410PrivateKeyParameters(x, gostParams.PublicKeyParamSet));
}
else
{
throw new SecurityUtilityException("algorithm identifier in key not recognised");
}
}
public static AsymmetricKeyParameter CreateKey(
PrivateKeyInfo keyInfo)
{
AlgorithmIdentifier algID = keyInfo.AlgorithmID;
if (algID.ObjectID.Equals(PkcsObjectIdentifiers.RsaEncryption))
{
RsaPrivateKeyStructure keyStructure = new RsaPrivateKeyStructure(
(Asn1Sequence)keyInfo.PrivateKey);
return(new RsaPrivateCrtKeyParameters(
keyStructure.Modulus,
keyStructure.PublicExponent,
keyStructure.PrivateExponent,
keyStructure.Prime1,
keyStructure.Prime2,
keyStructure.Exponent1,
keyStructure.Exponent2,
keyStructure.Coefficient));
}
else if (algID.ObjectID.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
{
DHParameter para = new DHParameter((Asn1Sequence)algID.Parameters);
DerInteger derX = (DerInteger)keyInfo.PrivateKey;
return(new DHPrivateKeyParameters(derX.Value, new DHParameters(para.P, para.G)));
}
else if (algID.ObjectID.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter((Asn1Sequence)algID.Parameters);
DerInteger derX = (DerInteger)keyInfo.PrivateKey;
return(new ElGamalPrivateKeyParameters(derX.Value, new ElGamalParameters(para.P, para.G)));
}
else if (algID.ObjectID.Equals(X9ObjectIdentifiers.IdDsa))
{
DsaParameter para = DsaParameter.GetInstance(algID.Parameters);
DerInteger derX = (DerInteger)keyInfo.PrivateKey;
return(new DsaPrivateKeyParameters(derX.Value, new DsaParameters(para.P, para.Q, para.G)));
}
else if (algID.ObjectID.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters para = new X962Parameters((Asn1Object)algID.Parameters);
ECDomainParameters dParams = null;
if (para.IsNamedCurve)
{
DerObjectIdentifier oid = (DerObjectIdentifier)para.Parameters;
X9ECParameters ecP = X962NamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = SecNamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = NistNamedCurves.GetByOid(oid);
}
}
dParams = new ECDomainParameters(
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed());
}
else
{
X9ECParameters ecP = new X9ECParameters(
(Asn1Sequence)para.Parameters);
dParams = new ECDomainParameters(
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed());
}
ECPrivateKeyStructure ec = new ECPrivateKeyStructure((Asn1Sequence)keyInfo.PrivateKey);
return(new ECPrivateKeyParameters(ec.GetKey(), dParams));
}
else if (algID.ObjectID.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
throw new NotImplementedException();
}
else if (algID.ObjectID.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters algParams = new Gost3410PublicKeyAlgParameters(
(Asn1Sequence)algID.Parameters);
DerOctetString derX = (DerOctetString)keyInfo.PrivateKey;
byte[] keyEnc = derX.GetOctets();
byte[] keyBytes = new byte[keyEnc.Length];
for (int i = 0; i != keyEnc.Length; i++)
{
keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // was little endian
}
BigInteger x = new BigInteger(1, keyBytes);
return(new Gost3410PrivateKeyParameters(x, algParams.PublicKeyParamSet));
}
else
{
throw new SecurityUtilityException("algorithm identifier in key not recognised");
}
}
//TODO: Abgleichen, ob DH Parameter min unter-, oder max überschreiten
public PrismaticJoint(double motionMinInMillimeters, double motionMaxInMillimeters, DHParameter dhParam) : base(motionMinInMillimeters, motionMaxInMillimeters, dhParam)
{
}
/// <summary>
/// The NumericalControl Instanze handles everything for the Numerical Control Part
/// </summary>
/// <param name="indata"></param>
/// <param name="millis"></param>
/// <param name="ende"></param>
/// <param name="DHParam"></param>
/// <returns></returns>
public static List <NumericalControl> AddNumericalControlSemaphor(List <string> indata, int millis, int ende, DHParameter DHParam)
{
return(NumericalControl.InstantiateSemaphor(indata, millis, ende, DHParam));
}
public static PrivateKeyInfo CreatePrivateKeyInfo(
AsymmetricKeyParameter key)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
if (!key.IsPrivate)
{
throw new ArgumentException("Public key passed - private key expected", "key");
}
if (key is ElGamalPrivateKeyParameters)
{
ElGamalPrivateKeyParameters _key = (ElGamalPrivateKeyParameters)key;
return(new PrivateKeyInfo(
new AlgorithmIdentifier(
OiwObjectIdentifiers.ElGamalAlgorithm,
new ElGamalParameter(
_key.Parameters.P,
_key.Parameters.G).ToAsn1Object()),
new DerInteger(_key.X)));
}
if (key is DsaPrivateKeyParameters)
{
DsaPrivateKeyParameters _key = (DsaPrivateKeyParameters)key;
return(new PrivateKeyInfo(
new AlgorithmIdentifier(
X9ObjectIdentifiers.IdDsa,
new DsaParameter(
_key.Parameters.P,
_key.Parameters.Q,
_key.Parameters.G).ToAsn1Object()),
new DerInteger(_key.X)));
}
if (key is DHPrivateKeyParameters)
{
/*
* Process DH private key.
* The value for L was set to zero implicitly.
* This is the same action as found in JCEDHPrivateKey GetEncoded method.
*/
DHPrivateKeyParameters _key = (DHPrivateKeyParameters)key;
DHParameter withNewL = new DHParameter(
_key.Parameters.P, _key.Parameters.G, 0);
return(new PrivateKeyInfo(
new AlgorithmIdentifier(
PkcsObjectIdentifiers.DhKeyAgreement,
withNewL.ToAsn1Object()),
new DerInteger(_key.X)));
}
if (key is RsaKeyParameters)
{
AlgorithmIdentifier algID = new AlgorithmIdentifier(
PkcsObjectIdentifiers.RsaEncryption, DerNull.Instance);
RsaPrivateKeyStructure keyStruct;
if (key is RsaPrivateCrtKeyParameters)
{
RsaPrivateCrtKeyParameters _key = (RsaPrivateCrtKeyParameters)key;
keyStruct = new RsaPrivateKeyStructure(
_key.Modulus,
_key.PublicExponent,
_key.Exponent,
_key.P,
_key.Q,
_key.DP,
_key.DQ,
_key.QInv);
}
else
{
RsaKeyParameters _key = (RsaKeyParameters)key;
keyStruct = new RsaPrivateKeyStructure(
_key.Modulus,
BigInteger.Zero,
_key.Exponent,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero);
}
return(new PrivateKeyInfo(algID, keyStruct.ToAsn1Object()));
}
if (key is ECPrivateKeyParameters)
{
ECPrivateKeyParameters _key = (ECPrivateKeyParameters)key;
AlgorithmIdentifier algID;
if (_key.AlgorithmName == "ECGOST3410")
{
if (_key.PublicKeyParamSet == null)
{
throw Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
_key.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet);
algID = new AlgorithmIdentifier(
CryptoProObjectIdentifiers.GostR3410x2001,
gostParams.ToAsn1Object());
}
else
{
X9ECParameters ecP = new X9ECParameters(
_key.Parameters.Curve,
_key.Parameters.G,
_key.Parameters.N,
_key.Parameters.H,
_key.Parameters.GetSeed());
X962Parameters x962 = new X962Parameters(ecP);
algID = new AlgorithmIdentifier(
X9ObjectIdentifiers.IdECPublicKey,
x962.ToAsn1Object());
}
return(new PrivateKeyInfo(algID, new ECPrivateKeyStructure(_key.D).ToAsn1Object()));
}
if (key is Gost3410PrivateKeyParameters)
{
Gost3410PrivateKeyParameters _key = (Gost3410PrivateKeyParameters)key;
if (_key.PublicKeyParamSet == null)
{
throw Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
byte[] keyEnc = _key.X.ToByteArrayUnsigned();
byte[] keyBytes = new byte[keyEnc.Length];
for (int i = 0; i != keyBytes.Length; i++)
{
keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // must be little endian
}
Gost3410PublicKeyAlgParameters algParams = new Gost3410PublicKeyAlgParameters(
_key.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet, null);
AlgorithmIdentifier algID = new AlgorithmIdentifier(
CryptoProObjectIdentifiers.GostR3410x94,
algParams.ToAsn1Object());
return(new PrivateKeyInfo(algID, new DerOctetString(keyBytes)));
}
throw new ArgumentException("Class provided is not convertible: " + key.GetType().FullName);
}
/// <summary>
/// The KinematicControl Instnze will Handle the InverseKinematics and the ForewardKinematics
/// </summary>
/// <param name="dhparam"></param>
/// <returns></returns>
public static KinematicControl GetKinematicControl(DHParameter dhparam, ActualPosition _ActualPosition)
{
return(KinematicControl.Instantiate(dhparam, _ActualPosition));
}
public static PrivateKeyInfo CreatePrivateKeyInfo(AsymmetricKeyParameter key)
{
//IL_0008: Unknown result type (might be due to invalid IL or missing references)
//IL_0020: Unknown result type (might be due to invalid IL or missing references)
//IL_0378: Unknown result type (might be due to invalid IL or missing references)
if (key == null)
{
throw new ArgumentNullException("key");
}
if (!key.IsPrivate)
{
throw new ArgumentException("Public key passed - private key expected", "key");
}
if (key is ElGamalPrivateKeyParameters)
{
ElGamalPrivateKeyParameters elGamalPrivateKeyParameters = (ElGamalPrivateKeyParameters)key;
return(new PrivateKeyInfo(new AlgorithmIdentifier(OiwObjectIdentifiers.ElGamalAlgorithm, new ElGamalParameter(elGamalPrivateKeyParameters.Parameters.P, elGamalPrivateKeyParameters.Parameters.G).ToAsn1Object()), new DerInteger(elGamalPrivateKeyParameters.X)));
}
if (key is DsaPrivateKeyParameters)
{
DsaPrivateKeyParameters dsaPrivateKeyParameters = (DsaPrivateKeyParameters)key;
return(new PrivateKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.IdDsa, new DsaParameter(dsaPrivateKeyParameters.Parameters.P, dsaPrivateKeyParameters.Parameters.Q, dsaPrivateKeyParameters.Parameters.G).ToAsn1Object()), new DerInteger(dsaPrivateKeyParameters.X)));
}
if (key is DHPrivateKeyParameters)
{
DHPrivateKeyParameters dHPrivateKeyParameters = (DHPrivateKeyParameters)key;
DHParameter dHParameter = new DHParameter(dHPrivateKeyParameters.Parameters.P, dHPrivateKeyParameters.Parameters.G, dHPrivateKeyParameters.Parameters.L);
return(new PrivateKeyInfo(new AlgorithmIdentifier(dHPrivateKeyParameters.AlgorithmOid, dHParameter.ToAsn1Object()), new DerInteger(dHPrivateKeyParameters.X)));
}
if (key is RsaKeyParameters)
{
AlgorithmIdentifier algID = new AlgorithmIdentifier(PkcsObjectIdentifiers.RsaEncryption, DerNull.Instance);
RsaPrivateKeyStructure rsaPrivateKeyStructure;
if (key is RsaPrivateCrtKeyParameters)
{
RsaPrivateCrtKeyParameters rsaPrivateCrtKeyParameters = (RsaPrivateCrtKeyParameters)key;
rsaPrivateKeyStructure = new RsaPrivateKeyStructure(rsaPrivateCrtKeyParameters.Modulus, rsaPrivateCrtKeyParameters.PublicExponent, rsaPrivateCrtKeyParameters.Exponent, rsaPrivateCrtKeyParameters.P, rsaPrivateCrtKeyParameters.Q, rsaPrivateCrtKeyParameters.DP, rsaPrivateCrtKeyParameters.DQ, rsaPrivateCrtKeyParameters.QInv);
}
else
{
RsaKeyParameters rsaKeyParameters = (RsaKeyParameters)key;
rsaPrivateKeyStructure = new RsaPrivateKeyStructure(rsaKeyParameters.Modulus, BigInteger.Zero, rsaKeyParameters.Exponent, BigInteger.Zero, BigInteger.Zero, BigInteger.Zero, BigInteger.Zero, BigInteger.Zero);
}
return(new PrivateKeyInfo(algID, rsaPrivateKeyStructure.ToAsn1Object()));
}
if (key is ECPrivateKeyParameters)
{
ECPrivateKeyParameters eCPrivateKeyParameters = (ECPrivateKeyParameters)key;
ECDomainParameters parameters = eCPrivateKeyParameters.Parameters;
int bitLength = parameters.N.BitLength;
AlgorithmIdentifier algID2;
ECPrivateKeyStructure privateKey;
if (eCPrivateKeyParameters.AlgorithmName == "ECGOST3410")
{
if (eCPrivateKeyParameters.PublicKeyParamSet == null)
{
throw Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
Gost3410PublicKeyAlgParameters parameters2 = new Gost3410PublicKeyAlgParameters(eCPrivateKeyParameters.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet);
algID2 = new AlgorithmIdentifier(CryptoProObjectIdentifiers.GostR3410x2001, parameters2);
privateKey = new ECPrivateKeyStructure(bitLength, eCPrivateKeyParameters.D);
}
else
{
X962Parameters parameters3;
if (eCPrivateKeyParameters.PublicKeyParamSet == null)
{
X9ECParameters ecParameters = new X9ECParameters(parameters.Curve, parameters.G, parameters.N, parameters.H, parameters.GetSeed());
parameters3 = new X962Parameters(ecParameters);
}
else
{
parameters3 = new X962Parameters(eCPrivateKeyParameters.PublicKeyParamSet);
}
privateKey = new ECPrivateKeyStructure(bitLength, eCPrivateKeyParameters.D, parameters3);
algID2 = new AlgorithmIdentifier(X9ObjectIdentifiers.IdECPublicKey, parameters3);
}
return(new PrivateKeyInfo(algID2, privateKey));
}
if (key is Gost3410PrivateKeyParameters)
{
Gost3410PrivateKeyParameters gost3410PrivateKeyParameters = (Gost3410PrivateKeyParameters)key;
if (gost3410PrivateKeyParameters.PublicKeyParamSet == null)
{
throw Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
byte[] array = gost3410PrivateKeyParameters.X.ToByteArrayUnsigned();
byte[] array2 = new byte[array.Length];
for (int i = 0; i != array2.Length; i++)
{
array2[i] = array[array.Length - 1 - i];
}
Gost3410PublicKeyAlgParameters gost3410PublicKeyAlgParameters = new Gost3410PublicKeyAlgParameters(gost3410PrivateKeyParameters.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet, null);
AlgorithmIdentifier algID3 = new AlgorithmIdentifier(CryptoProObjectIdentifiers.GostR3410x94, gost3410PublicKeyAlgParameters.ToAsn1Object());
return(new PrivateKeyInfo(algID3, new DerOctetString(array2)));
}
throw new ArgumentException("Class provided is not convertible: " + Platform.GetTypeName(key));
}
//TODO: Abgleichen, ob DH Parameter min unter-, oder max überschreiten
public RotationalJoint(double motionMinInRad, double motionMaxInRad, DHParameter dhParam) : base(motionMinInRad, motionMaxInRad, dhParam)
{
}
public static PrivateKeyInfo CreatePrivateKeyInfo(
AsymmetricKeyParameter key)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
if (!key.IsPrivate)
{
throw new ArgumentException("Public key passed - private key expected", "key");
}
if (key is ElGamalPrivateKeyParameters)
{
ElGamalPrivateKeyParameters _key = (ElGamalPrivateKeyParameters)key;
return(new PrivateKeyInfo(
new AlgorithmIdentifier(
OiwObjectIdentifiers.ElGamalAlgorithm,
new ElGamalParameter(
_key.Parameters.P,
_key.Parameters.G).ToAsn1Object()),
new DerInteger(_key.X)));
}
if (key is DsaPrivateKeyParameters)
{
DsaPrivateKeyParameters _key = (DsaPrivateKeyParameters)key;
return(new PrivateKeyInfo(
new AlgorithmIdentifier(
X9ObjectIdentifiers.IdDsa,
new DsaParameter(
_key.Parameters.P,
_key.Parameters.Q,
_key.Parameters.G).ToAsn1Object()),
new DerInteger(_key.X)));
}
if (key is DHPrivateKeyParameters)
{
DHPrivateKeyParameters _key = (DHPrivateKeyParameters)key;
DHParameter p = new DHParameter(
_key.Parameters.P, _key.Parameters.G, _key.Parameters.L);
return(new PrivateKeyInfo(
new AlgorithmIdentifier(_key.AlgorithmOid, p.ToAsn1Object()),
new DerInteger(_key.X)));
}
if (key is RsaKeyParameters)
{
AlgorithmIdentifier algID = new AlgorithmIdentifier(
PkcsObjectIdentifiers.RsaEncryption, DerNull.Instance);
RsaPrivateKeyStructure keyStruct;
if (key is RsaPrivateCrtKeyParameters)
{
RsaPrivateCrtKeyParameters _key = (RsaPrivateCrtKeyParameters)key;
keyStruct = new RsaPrivateKeyStructure(
_key.Modulus,
_key.PublicExponent,
_key.Exponent,
_key.P,
_key.Q,
_key.DP,
_key.DQ,
_key.QInv);
}
else
{
RsaKeyParameters _key = (RsaKeyParameters)key;
keyStruct = new RsaPrivateKeyStructure(
_key.Modulus,
BigInteger.Zero,
_key.Exponent,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero,
BigInteger.Zero);
}
return(new PrivateKeyInfo(algID, keyStruct.ToAsn1Object()));
}
if (key is ECPrivateKeyParameters)
{
ECPrivateKeyParameters priv = (ECPrivateKeyParameters)key;
ECDomainParameters dp = priv.Parameters;
int orderBitLength = dp.N.BitLength;
AlgorithmIdentifier algID;
ECPrivateKeyStructure ec;
if (priv.AlgorithmName == "ECGOST3410")
{
if (priv.PublicKeyParamSet == null)
{
throw Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
priv.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet);
algID = new AlgorithmIdentifier(CryptoProObjectIdentifiers.GostR3410x2001, gostParams);
// TODO Do we need to pass any parameters here?
ec = new ECPrivateKeyStructure(orderBitLength, priv.D);
}
else
{
X962Parameters x962;
if (priv.PublicKeyParamSet == null)
{
X9ECParameters ecP = new X9ECParameters(dp.Curve, dp.G, dp.N, dp.H, dp.GetSeed());
x962 = new X962Parameters(ecP);
}
else
{
x962 = new X962Parameters(priv.PublicKeyParamSet);
}
// TODO Possible to pass the publicKey bitstring here?
ec = new ECPrivateKeyStructure(orderBitLength, priv.D, x962);
algID = new AlgorithmIdentifier(X9ObjectIdentifiers.IdECPublicKey, x962);
}
return(new PrivateKeyInfo(algID, ec));
}
if (key is Gost3410PrivateKeyParameters)
{
Gost3410PrivateKeyParameters _key = (Gost3410PrivateKeyParameters)key;
if (_key.PublicKeyParamSet == null)
{
throw Platform.CreateNotImplementedException("Not a CryptoPro parameter set");
}
byte[] keyEnc = _key.X.ToByteArrayUnsigned();
byte[] keyBytes = new byte[keyEnc.Length];
for (int i = 0; i != keyBytes.Length; i++)
{
keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // must be little endian
}
Gost3410PublicKeyAlgParameters algParams = new Gost3410PublicKeyAlgParameters(
_key.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet, null);
AlgorithmIdentifier algID = new AlgorithmIdentifier(
CryptoProObjectIdentifiers.GostR3410x94,
algParams.ToAsn1Object());
return(new PrivateKeyInfo(algID, new DerOctetString(keyBytes)));
}
throw new ArgumentException("Class provided is not convertible: " + Platform.GetTypeName(key));
}
public static AsymmetricKeyParameter CreateKey(
SubjectPublicKeyInfo keyInfo)
{
AlgorithmIdentifier algID = keyInfo.AlgorithmID;
if (algID.ObjectID.Equals(PkcsObjectIdentifiers.RsaEncryption) ||
algID.ObjectID.Equals(X509ObjectIdentifiers.IdEARsa))
{
RsaPublicKeyStructure pubKey = RsaPublicKeyStructure.GetInstance(keyInfo.GetPublicKey());
return(new RsaKeyParameters(false, pubKey.Modulus, pubKey.PublicExponent));
}
else if (algID.ObjectID.Equals(PkcsObjectIdentifiers.DhKeyAgreement) ||
algID.ObjectID.Equals(X9ObjectIdentifiers.DHPublicNumber))
{
DHParameter para = new DHParameter((Asn1Sequence)keyInfo.AlgorithmID.Parameters);
DerInteger derY = (DerInteger)keyInfo.GetPublicKey();
return(new DHPublicKeyParameters(derY.Value, new DHParameters(para.P, para.G)));
}
else if (algID.ObjectID.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter((Asn1Sequence)keyInfo.AlgorithmID.Parameters);
DerInteger derY = (DerInteger)keyInfo.GetPublicKey();
return(new ElGamalPublicKeyParameters(derY.Value, new ElGamalParameters(para.P, para.G)));
}
else if (algID.ObjectID.Equals(X9ObjectIdentifiers.IdDsa) ||
algID.ObjectID.Equals(OiwObjectIdentifiers.DsaWithSha1))
{
DsaParameter para = DsaParameter.GetInstance(keyInfo.AlgorithmID.Parameters);
DerInteger derY = (DerInteger)keyInfo.GetPublicKey();
return(new DsaPublicKeyParameters(derY.Value, new DsaParameters(para.P, para.Q, para.G)));
}
else if (algID.ObjectID.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters para = new X962Parameters((Asn1Object)keyInfo.AlgorithmID.Parameters);
ECDomainParameters dParams = null;
if (para.IsNamedCurve)
{
DerObjectIdentifier oid = (DerObjectIdentifier)para.Parameters;
X9ECParameters ecP = X962NamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = SecNamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = NistNamedCurves.GetByOid(oid);
}
}
dParams = new ECDomainParameters(
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed());
}
else
{
X9ECParameters ecP = new X9ECParameters((Asn1Sequence)para.Parameters.ToAsn1Object());
dParams = new ECDomainParameters(
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed());
}
DerBitString bits = keyInfo.PublicKeyData;
byte[] data = bits.GetBytes();
Asn1OctetString key = new DerOctetString(data);
X9ECPoint derQ = new X9ECPoint(dParams.Curve, key);
return(new ECPublicKeyParameters(derQ.Point, dParams));
}
else if (algID.ObjectID.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
(Asn1Sequence)algID.Parameters);
Asn1OctetString key;
try
{
key = (Asn1OctetString)keyInfo.GetPublicKey();
}
catch (IOException)
{
throw new ArgumentException("invalid info structure in GOST3410 public key");
}
byte[] keyEnc = key.GetOctets();
byte[] x = new byte[32];
byte[] y = new byte[32];
for (int i = 0; i != y.Length; i++)
{
x[i] = keyEnc[32 - 1 - i];
}
for (int i = 0; i != x.Length; i++)
{
y[i] = keyEnc[64 - 1 - i];
}
ECDomainParameters ecP = ECGost3410NamedCurves.GetByOid(gostParams.PublicKeyParamSet);
if (ecP == null)
{
return(null);
}
ECCurve curve = ecP.Curve;
ECPoint q;
if (curve is FpCurve)
{
FpCurve curveFp = (FpCurve)curve;
q = new FpPoint(
curveFp,
new FpFieldElement(curveFp.Q, new BigInteger(1, x)),
new FpFieldElement(curveFp.Q, new BigInteger(1, y)));
}
else
{
F2mCurve curveF2m = (F2mCurve)curve;
q = new F2mPoint(
curveF2m,
new F2mFieldElement(curveF2m.M, curveF2m.K1, curveF2m.K2, curveF2m.K3, new BigInteger(1, x)),
new F2mFieldElement(curveF2m.M, curveF2m.K1, curveF2m.K2, curveF2m.K3, new BigInteger(1, y)),
false);
}
return(new ECPublicKeyParameters(q, gostParams.PublicKeyParamSet));
}
else if (algID.ObjectID.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters algParams = new Gost3410PublicKeyAlgParameters(
(Asn1Sequence)algID.Parameters);
DerOctetString derY;
try
{
derY = (DerOctetString)keyInfo.GetPublicKey();
}
catch (IOException)
{
throw new ArgumentException("invalid info structure in GOST3410 public key");
}
byte[] keyEnc = derY.GetOctets();
byte[] keyBytes = new byte[keyEnc.Length];
for (int i = 0; i != keyEnc.Length; i++)
{
keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // was little endian
}
BigInteger y = new BigInteger(1, keyBytes);
return(new Gost3410PublicKeyParameters(y, algParams.PublicKeyParamSet));
}
else
{
throw new SecurityUtilityException("algorithm identifier in key not recognised: " + algID.ObjectID);
}
}
public static AsymmetricKeyParameter CreateKey(PrivateKeyInfo keyInfo)
{
AlgorithmIdentifier algId = keyInfo.getAlgorithmId();
if (algId.getObjectId().Equals(PKCSObjectIdentifiers.rsaEncryption))
{
RSAPrivateKeyStructure keyStructure = new RSAPrivateKeyStructure((ASN1Sequence)keyInfo.getPrivateKey());
return(new RSAPrivateCrtKeyParameters(
keyStructure.getModulus(),
keyStructure.getPublicExponent(),
keyStructure.getPrivateExponent(),
keyStructure.getPrime1(),
keyStructure.getPrime2(),
keyStructure.getExponent1(),
keyStructure.getExponent2(),
keyStructure.getCoefficient()));
}
else if (algId.getObjectId().Equals(PKCSObjectIdentifiers.dhKeyAgreement))
{
DHParameter para = new DHParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
DERInteger derX = (DERInteger)keyInfo.getPrivateKey();
return(new DHPrivateKeyParameters(derX.getValue(), new DHParameters(para.getP(), para.getG())));
}
else if (algId.getObjectId().Equals(OIWObjectIdentifiers.elGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
DERInteger derX = (DERInteger)keyInfo.getPrivateKey();
return(new ElGamalPrivateKeyParameters(derX.getValue(), new ElGamalParameters(para.getP(), para.getG())));
}
else if (algId.getObjectId().Equals(X9ObjectIdentifiers.id_dsa))
{
DSAParameter para = new DSAParameter((ASN1Sequence)keyInfo.getAlgorithmId().getParameters());
DERInteger derX = (DERInteger)keyInfo.getPrivateKey();
return(new DSAPrivateKeyParameters(derX.getValue(), new DSAParameters(para.getP(), para.getQ(), para.getG())));
}
else if (algId.getObjectId().Equals(X9ObjectIdentifiers.id_ecPublicKey))
{
X962Parameters para = new X962Parameters((ASN1Object)keyInfo.getAlgorithmId().getParameters());
ECDomainParameters dParams = null;
if (para.isNamedCurve())
{
DERObjectIdentifier oid = (DERObjectIdentifier)para.getParameters();
X9ECParameters ecP = X962NamedCurves.getByOID(oid);
dParams = new ECDomainParameters(
ecP.getCurve(),
ecP.getG(),
ecP.getN(),
ecP.getH(),
ecP.getSeed());
}
else
{
X9ECParameters ecP = new X9ECParameters(
(ASN1Sequence)para.getParameters());
dParams = new ECDomainParameters(
ecP.getCurve(),
ecP.getG(),
ecP.getN(),
ecP.getH(),
ecP.getSeed());
}
ECPrivateKeyStructure ec = new ECPrivateKeyStructure((ASN1Sequence)keyInfo.getPrivateKey());
return(new ECPrivateKeyParameters(ec.getKey(), dParams));
}
else
{
throw new Exception("algorithm identifier in key not recognised");
}
}
public static AsymmetricKeyParameter CreateKey(PrivateKeyInfo keyInfo)
{
//IL_02a2: Unknown result type (might be due to invalid IL or missing references)
AlgorithmIdentifier privateKeyAlgorithm = keyInfo.PrivateKeyAlgorithm;
DerObjectIdentifier algorithm = privateKeyAlgorithm.Algorithm;
if (algorithm.Equals(PkcsObjectIdentifiers.RsaEncryption) || algorithm.Equals(X509ObjectIdentifiers.IdEARsa) || algorithm.Equals(PkcsObjectIdentifiers.IdRsassaPss) || algorithm.Equals(PkcsObjectIdentifiers.IdRsaesOaep))
{
RsaPrivateKeyStructure instance = RsaPrivateKeyStructure.GetInstance(keyInfo.ParsePrivateKey());
return(new RsaPrivateCrtKeyParameters(instance.Modulus, instance.PublicExponent, instance.PrivateExponent, instance.Prime1, instance.Prime2, instance.Exponent1, instance.Exponent2, instance.Coefficient));
}
if (algorithm.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
{
DHParameter dHParameter = new DHParameter(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
DerInteger derInteger = (DerInteger)keyInfo.ParsePrivateKey();
int l = dHParameter.L?.IntValue ?? 0;
DHParameters parameters = new DHParameters(dHParameter.P, dHParameter.G, null, l);
return(new DHPrivateKeyParameters(derInteger.Value, parameters, algorithm));
}
if (algorithm.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter elGamalParameter = new ElGamalParameter(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
DerInteger derInteger2 = (DerInteger)keyInfo.ParsePrivateKey();
return(new ElGamalPrivateKeyParameters(derInteger2.Value, new ElGamalParameters(elGamalParameter.P, elGamalParameter.G)));
}
if (algorithm.Equals(X9ObjectIdentifiers.IdDsa))
{
DerInteger derInteger3 = (DerInteger)keyInfo.ParsePrivateKey();
Asn1Encodable parameters2 = privateKeyAlgorithm.Parameters;
DsaParameters parameters3 = null;
if (parameters2 != null)
{
DsaParameter instance2 = DsaParameter.GetInstance(parameters2.ToAsn1Object());
parameters3 = new DsaParameters(instance2.P, instance2.Q, instance2.G);
}
return(new DsaPrivateKeyParameters(derInteger3.Value, parameters3));
}
if (algorithm.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters x962Parameters = new X962Parameters(privateKeyAlgorithm.Parameters.ToAsn1Object());
X9ECParameters x9ECParameters = ((!x962Parameters.IsNamedCurve) ? new X9ECParameters((Asn1Sequence)x962Parameters.Parameters) : ECKeyPairGenerator.FindECCurveByOid((DerObjectIdentifier)x962Parameters.Parameters));
ECPrivateKeyStructure instance3 = ECPrivateKeyStructure.GetInstance(keyInfo.ParsePrivateKey());
BigInteger key = instance3.GetKey();
if (x962Parameters.IsNamedCurve)
{
return(new ECPrivateKeyParameters("EC", key, (DerObjectIdentifier)x962Parameters.Parameters));
}
ECDomainParameters parameters4 = new ECDomainParameters(x9ECParameters.Curve, x9ECParameters.G, x9ECParameters.N, x9ECParameters.H, x9ECParameters.GetSeed());
return(new ECPrivateKeyParameters(key, parameters4));
}
if (algorithm.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
Gost3410PublicKeyAlgParameters gost3410PublicKeyAlgParameters = new Gost3410PublicKeyAlgParameters(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
ECDomainParameters byOid = ECGost3410NamedCurves.GetByOid(gost3410PublicKeyAlgParameters.PublicKeyParamSet);
if (byOid == null)
{
throw new ArgumentException("Unrecognized curve OID for GostR3410x2001 private key");
}
Asn1Object asn1Object = keyInfo.ParsePrivateKey();
ECPrivateKeyStructure eCPrivateKeyStructure = ((!(asn1Object is DerInteger)) ? ECPrivateKeyStructure.GetInstance(asn1Object) : new ECPrivateKeyStructure(byOid.N.BitLength, ((DerInteger)asn1Object).Value));
return(new ECPrivateKeyParameters("ECGOST3410", eCPrivateKeyStructure.GetKey(), gost3410PublicKeyAlgParameters.PublicKeyParamSet));
}
if (algorithm.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters gost3410PublicKeyAlgParameters2 = new Gost3410PublicKeyAlgParameters(Asn1Sequence.GetInstance(privateKeyAlgorithm.Parameters.ToAsn1Object()));
DerOctetString derOctetString = (DerOctetString)keyInfo.ParsePrivateKey();
BigInteger x = new BigInteger(1, Arrays.Reverse(derOctetString.GetOctets()));
return(new Gost3410PrivateKeyParameters(x, gost3410PublicKeyAlgParameters2.PublicKeyParamSet));
}
throw new SecurityUtilityException("algorithm identifier in key not recognised");
}
public static AsymmetricKeyParameter CreateKey(
SubjectPublicKeyInfo keyInfo)
{
AlgorithmIdentifier algID = keyInfo.AlgorithmID;
DerObjectIdentifier algOid = algID.ObjectID;
// TODO See RSAUtil.isRsaOid in Java build
if (algOid.Equals(PkcsObjectIdentifiers.RsaEncryption) ||
algOid.Equals(X509ObjectIdentifiers.IdEARsa) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsassaPss) ||
algOid.Equals(PkcsObjectIdentifiers.IdRsaesOaep))
{
RsaPublicKeyStructure pubKey = RsaPublicKeyStructure.GetInstance(
keyInfo.GetPublicKey());
return(new RsaKeyParameters(false, pubKey.Modulus, pubKey.PublicExponent));
}
else if (algOid.Equals(PkcsObjectIdentifiers.DhKeyAgreement) ||
algOid.Equals(X9ObjectIdentifiers.DHPublicNumber))
{
DHParameter para = new DHParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derY = (DerInteger)keyInfo.GetPublicKey();
BigInteger lVal = para.L;
int l = lVal == null ? 0 : lVal.IntValue;
DHParameters dhParams = new DHParameters(para.P, para.G, null, l);
return(new DHPublicKeyParameters(derY.Value, dhParams));
}
else if (algOid.Equals(OiwObjectIdentifiers.ElGamalAlgorithm))
{
ElGamalParameter para = new ElGamalParameter(
Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object()));
DerInteger derY = (DerInteger)keyInfo.GetPublicKey();
return(new ElGamalPublicKeyParameters(
derY.Value,
new ElGamalParameters(para.P, para.G)));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdDsa) ||
algOid.Equals(OiwObjectIdentifiers.DsaWithSha1))
{
DerInteger derY = (DerInteger)keyInfo.GetPublicKey();
Asn1Encodable ae = algID.Parameters;
DsaParameters parameters = null;
if (ae != null)
{
DsaParameter para = DsaParameter.GetInstance(ae.ToAsn1Object());
parameters = new DsaParameters(para.P, para.Q, para.G);
}
return(new DsaPublicKeyParameters(derY.Value, parameters));
}
else if (algOid.Equals(X9ObjectIdentifiers.IdECPublicKey))
{
X962Parameters para = new X962Parameters(
algID.Parameters.ToAsn1Object());
X9ECParameters ecP;
if (para.IsNamedCurve)
{
// TODO ECGost3410NamedCurves support (returns ECDomainParameters though)
DerObjectIdentifier oid = (DerObjectIdentifier)para.Parameters;
ecP = X962NamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = SecNamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = NistNamedCurves.GetByOid(oid);
if (ecP == null)
{
ecP = TeleTrusTNamedCurves.GetByOid(oid);
}
}
}
}
else
{
ecP = new X9ECParameters((Asn1Sequence)para.Parameters);
}
ECDomainParameters dParams = new ECDomainParameters(
ecP.Curve,
ecP.G,
ecP.N,
ecP.H,
ecP.GetSeed());
DerBitString bits = keyInfo.PublicKeyData;
byte[] data = bits.GetBytes();
Asn1OctetString key = new DerOctetString(data);
X9ECPoint derQ = new X9ECPoint(dParams.Curve, key);
return(new ECPublicKeyParameters(derQ.Point, dParams));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x2001))
{
Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
(Asn1Sequence)algID.Parameters);
Asn1OctetString key;
try
{
key = (Asn1OctetString)keyInfo.GetPublicKey();
}
catch (IOException)
{
throw new ArgumentException("invalid info structure in GOST3410 public key");
}
byte[] keyEnc = key.GetOctets();
byte[] x = new byte[32];
byte[] y = new byte[32];
for (int i = 0; i != y.Length; i++)
{
x[i] = keyEnc[32 - 1 - i];
}
for (int i = 0; i != x.Length; i++)
{
y[i] = keyEnc[64 - 1 - i];
}
ECDomainParameters ecP = ECGost3410NamedCurves.GetByOid(gostParams.PublicKeyParamSet);
if (ecP == null)
{
return(null);
}
ECPoint q = ecP.Curve.CreatePoint(new BigInteger(1, x), new BigInteger(1, y), false);
return(new ECPublicKeyParameters(q, gostParams.PublicKeyParamSet));
}
else if (algOid.Equals(CryptoProObjectIdentifiers.GostR3410x94))
{
Gost3410PublicKeyAlgParameters algParams = new Gost3410PublicKeyAlgParameters(
(Asn1Sequence)algID.Parameters);
DerOctetString derY;
try
{
derY = (DerOctetString)keyInfo.GetPublicKey();
}
catch (IOException)
{
throw new ArgumentException("invalid info structure in GOST3410 public key");
}
byte[] keyEnc = derY.GetOctets();
byte[] keyBytes = new byte[keyEnc.Length];
for (int i = 0; i != keyEnc.Length; i++)
{
keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // was little endian
}
BigInteger y = new BigInteger(1, keyBytes);
return(new Gost3410PublicKeyParameters(y, algParams.PublicKeyParamSet));
}
else
{
throw new SecurityUtilityException("algorithm identifier in key not recognised: " + algOid);
}
}
protected Joint(double motionMin, double motionMax, DHParameter dhParam)
{
MotionMinimum = motionMin;
MotionMaximum = motionMax;
DhParameter = dhParam;
}
