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Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/pkcs/PrivateKeyInfoFactory.cs
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292
Packages/com.tivadar.best.http/Runtime/3rdParty/BouncyCastle/pkcs/PrivateKeyInfoFactory.cs
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#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
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#pragma warning disable
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using System;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.CryptoPro;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.EdEC;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.Oiw;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.Pkcs;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.Rosstandart;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.Sec;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X509;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1.X9;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Generators;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Math;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Security;
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using Best.HTTP.SecureProtocol.Org.BouncyCastle.Utilities;
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namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Pkcs
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{
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public static class PrivateKeyInfoFactory
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{
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public static PrivateKeyInfo CreatePrivateKeyInfo(
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AsymmetricKeyParameter privateKey)
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{
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return CreatePrivateKeyInfo(privateKey, null);
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}
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/**
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* Create a PrivateKeyInfo representation of a private key with attributes.
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*
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* @param privateKey the key to be encoded into the info object.
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* @param attributes the set of attributes to be included.
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* @return the appropriate PrivateKeyInfo
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* @throws java.io.IOException on an error encoding the key
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*/
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public static PrivateKeyInfo CreatePrivateKeyInfo(AsymmetricKeyParameter privateKey, Asn1Set attributes)
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{
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if (privateKey == null)
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throw new ArgumentNullException("privateKey");
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if (!privateKey.IsPrivate)
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throw new ArgumentException("Public key passed - private key expected", "privateKey");
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if (privateKey is ElGamalPrivateKeyParameters)
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{
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ElGamalPrivateKeyParameters _key = (ElGamalPrivateKeyParameters)privateKey;
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ElGamalParameters egp = _key.Parameters;
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return new PrivateKeyInfo(
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new AlgorithmIdentifier(OiwObjectIdentifiers.ElGamalAlgorithm, new ElGamalParameter(egp.P, egp.G).ToAsn1Object()),
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new DerInteger(_key.X),
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attributes);
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}
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if (privateKey is DsaPrivateKeyParameters)
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{
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DsaPrivateKeyParameters _key = (DsaPrivateKeyParameters)privateKey;
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DsaParameters dp = _key.Parameters;
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return new PrivateKeyInfo(
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new AlgorithmIdentifier(X9ObjectIdentifiers.IdDsa, new DsaParameter(dp.P, dp.Q, dp.G).ToAsn1Object()),
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new DerInteger(_key.X),
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attributes);
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}
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if (privateKey is DHPrivateKeyParameters)
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{
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DHPrivateKeyParameters _key = (DHPrivateKeyParameters)privateKey;
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DHParameter p = new DHParameter(
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_key.Parameters.P, _key.Parameters.G, _key.Parameters.L);
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return new PrivateKeyInfo(
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new AlgorithmIdentifier(_key.AlgorithmOid, p.ToAsn1Object()),
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new DerInteger(_key.X),
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attributes);
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}
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if (privateKey is RsaKeyParameters)
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{
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AlgorithmIdentifier algID = new AlgorithmIdentifier(
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PkcsObjectIdentifiers.RsaEncryption, DerNull.Instance);
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RsaPrivateKeyStructure keyStruct;
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if (privateKey is RsaPrivateCrtKeyParameters)
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{
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RsaPrivateCrtKeyParameters _key = (RsaPrivateCrtKeyParameters)privateKey;
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keyStruct = new RsaPrivateKeyStructure(
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_key.Modulus,
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_key.PublicExponent,
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_key.Exponent,
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_key.P,
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_key.Q,
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_key.DP,
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_key.DQ,
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_key.QInv);
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}
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else
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{
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RsaKeyParameters _key = (RsaKeyParameters) privateKey;
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keyStruct = new RsaPrivateKeyStructure(
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_key.Modulus,
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BigInteger.Zero,
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_key.Exponent,
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BigInteger.Zero,
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BigInteger.Zero,
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BigInteger.Zero,
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BigInteger.Zero,
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BigInteger.Zero);
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}
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return new PrivateKeyInfo(algID, keyStruct.ToAsn1Object(), attributes);
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}
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if (privateKey is ECPrivateKeyParameters)
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{
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ECPrivateKeyParameters priv = (ECPrivateKeyParameters) privateKey;
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DerBitString publicKey = new DerBitString(ECKeyPairGenerator.GetCorrespondingPublicKey(priv).Q.GetEncoded(false));
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ECDomainParameters dp = priv.Parameters;
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// ECGOST3410
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if (dp is ECGost3410Parameters)
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{
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ECGost3410Parameters domainParameters = (ECGost3410Parameters) dp;
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Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
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(domainParameters).PublicKeyParamSet,
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(domainParameters).DigestParamSet,
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(domainParameters).EncryptionParamSet);
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bool is512 = priv.D.BitLength > 256;
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DerObjectIdentifier identifier = (is512) ?
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RosstandartObjectIdentifiers.id_tc26_gost_3410_12_512 :
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RosstandartObjectIdentifiers.id_tc26_gost_3410_12_256;
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int size = (is512) ? 64 : 32;
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byte[] encKey = new byte[size];
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ExtractBytes(encKey, size, 0, priv.D);
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return new PrivateKeyInfo(new AlgorithmIdentifier(identifier, gostParams), new DerOctetString(encKey));
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}
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int orderBitLength = dp.N.BitLength;
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AlgorithmIdentifier algID;
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ECPrivateKeyStructure ec;
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if (priv.AlgorithmName == "ECGOST3410")
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{
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if (priv.PublicKeyParamSet == null)
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throw new NotImplementedException("Not a CryptoPro parameter set");
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Gost3410PublicKeyAlgParameters gostParams = new Gost3410PublicKeyAlgParameters(
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priv.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet);
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algID = new AlgorithmIdentifier(CryptoProObjectIdentifiers.GostR3410x2001, gostParams);
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// TODO Do we need to pass any parameters here?
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ec = new ECPrivateKeyStructure(orderBitLength, priv.D, publicKey, null);
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}
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else
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{
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X962Parameters x962;
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if (priv.PublicKeyParamSet == null)
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{
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X9ECParameters ecP = new X9ECParameters(dp.Curve, new X9ECPoint(dp.G, false), dp.N, dp.H,
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dp.GetSeed());
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x962 = new X962Parameters(ecP);
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}
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else
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{
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x962 = new X962Parameters(priv.PublicKeyParamSet);
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}
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ec = new ECPrivateKeyStructure(orderBitLength, priv.D, publicKey, x962);
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algID = new AlgorithmIdentifier(X9ObjectIdentifiers.IdECPublicKey, x962);
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}
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return new PrivateKeyInfo(algID, ec, attributes);
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}
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if (privateKey is Gost3410PrivateKeyParameters)
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{
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Gost3410PrivateKeyParameters _key = (Gost3410PrivateKeyParameters)privateKey;
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if (_key.PublicKeyParamSet == null)
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throw new NotImplementedException("Not a CryptoPro parameter set");
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byte[] keyEnc = _key.X.ToByteArrayUnsigned();
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byte[] keyBytes = new byte[keyEnc.Length];
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for (int i = 0; i != keyBytes.Length; i++)
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{
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keyBytes[i] = keyEnc[keyEnc.Length - 1 - i]; // must be little endian
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}
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Gost3410PublicKeyAlgParameters algParams = new Gost3410PublicKeyAlgParameters(
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_key.PublicKeyParamSet, CryptoProObjectIdentifiers.GostR3411x94CryptoProParamSet, null);
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AlgorithmIdentifier algID = new AlgorithmIdentifier(
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CryptoProObjectIdentifiers.GostR3410x94,
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algParams.ToAsn1Object());
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return new PrivateKeyInfo(algID, new DerOctetString(keyBytes), attributes);
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}
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if (privateKey is X448PrivateKeyParameters)
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{
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X448PrivateKeyParameters key = (X448PrivateKeyParameters)privateKey;
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return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X448),
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new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded());
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}
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if (privateKey is X25519PrivateKeyParameters)
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{
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X25519PrivateKeyParameters key = (X25519PrivateKeyParameters)privateKey;
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return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_X25519),
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new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded());
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}
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if (privateKey is Ed448PrivateKeyParameters)
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{
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Ed448PrivateKeyParameters key = (Ed448PrivateKeyParameters)privateKey;
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return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed448),
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new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded());
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}
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if (privateKey is Ed25519PrivateKeyParameters)
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{
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Ed25519PrivateKeyParameters key = (Ed25519PrivateKeyParameters)privateKey;
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return new PrivateKeyInfo(new AlgorithmIdentifier(EdECObjectIdentifiers.id_Ed25519),
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new DerOctetString(key.GetEncoded()), attributes, key.GeneratePublicKey().GetEncoded());
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}
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throw new ArgumentException("Class provided is not convertible: " + Org.BouncyCastle.Utilities.Platform.GetTypeName(privateKey));
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}
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public static PrivateKeyInfo CreatePrivateKeyInfo(
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char[] passPhrase,
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EncryptedPrivateKeyInfo encInfo)
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{
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return CreatePrivateKeyInfo(passPhrase, false, encInfo);
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}
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public static PrivateKeyInfo CreatePrivateKeyInfo(
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char[] passPhrase,
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bool wrongPkcs12Zero,
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EncryptedPrivateKeyInfo encInfo)
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{
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AlgorithmIdentifier algID = encInfo.EncryptionAlgorithm;
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IBufferedCipher cipher = PbeUtilities.CreateEngine(algID) as IBufferedCipher;
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if (cipher == null)
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throw new Exception("Unknown encryption algorithm: " + algID.Algorithm);
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ICipherParameters cipherParameters = PbeUtilities.GenerateCipherParameters(
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algID, passPhrase, wrongPkcs12Zero);
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cipher.Init(false, cipherParameters);
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byte[] keyBytes = cipher.DoFinal(encInfo.GetEncryptedData());
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return PrivateKeyInfo.GetInstance(keyBytes);
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}
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private static void ExtractBytes(byte[] encKey, int size, int offSet, BigInteger bI)
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{
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byte[] val = bI.ToByteArray();
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if (val.Length < size)
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{
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byte[] tmp = new byte[size];
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Array.Copy(val, 0, tmp, tmp.Length - val.Length, val.Length);
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val = tmp;
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}
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for (int i = 0; i != size; i++)
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{
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encKey[offSet + i] = val[val.Length - 1 - i];
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}
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}
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}
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}
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#pragma warning restore
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#endif
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