diff --git a/crypto/src/security/PrivateKeyFactory.cs b/crypto/src/security/PrivateKeyFactory.cs
index 5ebebd55a..c5ddd5d78 100644
--- a/crypto/src/security/PrivateKeyFactory.cs
+++ b/crypto/src/security/PrivateKeyFactory.cs
@@ -24,98 +24,98 @@ namespace Org.BouncyCastle.Security
{
}
- public static AsymmetricKeyParameter CreateKey(
- byte[] privateKeyInfoData)
- {
- return CreateKey(
- PrivateKeyInfo.GetInstance(
- Asn1Object.FromByteArray(privateKeyInfoData)));
- }
-
- public static AsymmetricKeyParameter CreateKey(
- Stream inStr)
- {
- return CreateKey(
- PrivateKeyInfo.GetInstance(
- Asn1Object.FromStream(inStr)));
- }
-
- public static AsymmetricKeyParameter CreateKey(
- PrivateKeyInfo keyInfo)
+ public static AsymmetricKeyParameter CreateKey(
+ byte[] privateKeyInfoData)
+ {
+ return CreateKey(
+ PrivateKeyInfo.GetInstance(
+ Asn1Object.FromByteArray(privateKeyInfoData)));
+ }
+
+ public static AsymmetricKeyParameter CreateKey(
+ Stream inStr)
+ {
+ return CreateKey(
+ PrivateKeyInfo.GetInstance(
+ Asn1Object.FromStream(inStr)));
+ }
+
+ 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);
- }
- // TODO?
+ 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);
+ }
+ // 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.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, algOid);
- }
- 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 x9;
- if (para.IsNamedCurve)
- {
+ 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, algOid);
+ }
+ 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 x9;
+ if (para.IsNamedCurve)
+ {
x9 = ECKeyPairGenerator.FindECCurveByOid((DerObjectIdentifier)para.Parameters);
- }
- else
- {
+ }
+ else
+ {
x9 = new X9ECParameters((Asn1Sequence)para.Parameters);
- }
+ }
ECPrivateKeyStructure ec = new ECPrivateKeyStructure(
Asn1Sequence.GetInstance(keyInfo.PrivateKey));
@@ -127,74 +127,74 @@ namespace Org.BouncyCastle.Security
}
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()));
-
- ECPrivateKeyStructure ec = new ECPrivateKeyStructure(
- Asn1Sequence.GetInstance(keyInfo.PrivateKey));
-
- ECDomainParameters ecP = ECGost3410NamedCurves.GetByOid(gostParams.PublicKeyParamSet);
-
- if (ecP == null)
- return null;
-
- return new ECPrivateKeyParameters("ECGOST3410", 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");
- }
+ return new ECPrivateKeyParameters(d, 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("ECGOST3410", 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 DecryptKey(
- char[] passPhrase,
- EncryptedPrivateKeyInfo encInfo)
- {
- return CreateKey(PrivateKeyInfoFactory.CreatePrivateKeyInfo(passPhrase, encInfo));
- }
-
- public static AsymmetricKeyParameter DecryptKey(
- char[] passPhrase,
- byte[] encryptedPrivateKeyInfoData)
- {
- return DecryptKey(passPhrase, Asn1Object.FromByteArray(encryptedPrivateKeyInfoData));
- }
-
- public static AsymmetricKeyParameter DecryptKey(
- char[] passPhrase,
- Stream encryptedPrivateKeyInfoStream)
- {
- return DecryptKey(passPhrase, Asn1Object.FromStream(encryptedPrivateKeyInfoStream));
- }
-
- private static AsymmetricKeyParameter DecryptKey(
- char[] passPhrase,
- Asn1Object asn1Object)
- {
- return DecryptKey(passPhrase, EncryptedPrivateKeyInfo.GetInstance(asn1Object));
- }
+ public static AsymmetricKeyParameter DecryptKey(
+ char[] passPhrase,
+ EncryptedPrivateKeyInfo encInfo)
+ {
+ return CreateKey(PrivateKeyInfoFactory.CreatePrivateKeyInfo(passPhrase, encInfo));
+ }
+
+ public static AsymmetricKeyParameter DecryptKey(
+ char[] passPhrase,
+ byte[] encryptedPrivateKeyInfoData)
+ {
+ return DecryptKey(passPhrase, Asn1Object.FromByteArray(encryptedPrivateKeyInfoData));
+ }
+
+ public static AsymmetricKeyParameter DecryptKey(
+ char[] passPhrase,
+ Stream encryptedPrivateKeyInfoStream)
+ {
+ return DecryptKey(passPhrase, Asn1Object.FromStream(encryptedPrivateKeyInfoStream));
+ }
+
+ private static AsymmetricKeyParameter DecryptKey(
+ char[] passPhrase,
+ Asn1Object asn1Object)
+ {
+ return DecryptKey(passPhrase, EncryptedPrivateKeyInfo.GetInstance(asn1Object));
+ }
public static byte[] EncryptKey(
DerObjectIdentifier algorithm,
@@ -203,19 +203,19 @@ namespace Org.BouncyCastle.Security
int iterationCount,
AsymmetricKeyParameter key)
{
- return EncryptedPrivateKeyInfoFactory.CreateEncryptedPrivateKeyInfo(
- algorithm, passPhrase, salt, iterationCount, key).GetEncoded();
+ return EncryptedPrivateKeyInfoFactory.CreateEncryptedPrivateKeyInfo(
+ algorithm, passPhrase, salt, iterationCount, key).GetEncoded();
}
- public static byte[] EncryptKey(
- string algorithm,
+ public static byte[] EncryptKey(
+ string algorithm,
char[] passPhrase,
byte[] salt,
int iterationCount,
AsymmetricKeyParameter key)
{
- return EncryptedPrivateKeyInfoFactory.CreateEncryptedPrivateKeyInfo(
- algorithm, passPhrase, salt, iterationCount, key).GetEncoded();
+ return EncryptedPrivateKeyInfoFactory.CreateEncryptedPrivateKeyInfo(
+ algorithm, passPhrase, salt, iterationCount, key).GetEncoded();
}
- }
+ }
}
diff --git a/crypto/src/security/PublicKeyFactory.cs b/crypto/src/security/PublicKeyFactory.cs
index c15e24a41..b0fc98b03 100644
--- a/crypto/src/security/PublicKeyFactory.cs
+++ b/crypto/src/security/PublicKeyFactory.cs
@@ -24,122 +24,122 @@ namespace Org.BouncyCastle.Security
{
}
- public static AsymmetricKeyParameter CreateKey(
- byte[] keyInfoData)
- {
- return CreateKey(
- SubjectPublicKeyInfo.GetInstance(
- Asn1Object.FromByteArray(keyInfoData)));
- }
-
- public static AsymmetricKeyParameter CreateKey(
- Stream inStr)
- {
- return CreateKey(
- SubjectPublicKeyInfo.GetInstance(
- Asn1Object.FromStream(inStr)));
- }
-
- public static AsymmetricKeyParameter CreateKey(
- SubjectPublicKeyInfo keyInfo)
+ public static AsymmetricKeyParameter CreateKey(
+ byte[] keyInfoData)
+ {
+ return CreateKey(
+ SubjectPublicKeyInfo.GetInstance(
+ Asn1Object.FromByteArray(keyInfoData)));
+ }
+
+ public static AsymmetricKeyParameter CreateKey(
+ Stream inStr)
+ {
+ return CreateKey(
+ SubjectPublicKeyInfo.GetInstance(
+ Asn1Object.FromStream(inStr)));
+ }
+
+ 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(X9ObjectIdentifiers.DHPublicNumber))
- {
- Asn1Sequence seq = Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object());
-
- DHPublicKey dhPublicKey = DHPublicKey.GetInstance(keyInfo.GetPublicKey());
-
- BigInteger y = dhPublicKey.Y.Value;
-
- if (IsPkcsDHParam(seq))
- return ReadPkcsDHParam(algOid, y, seq);
-
- DHDomainParameters dhParams = DHDomainParameters.GetInstance(seq);
-
- BigInteger p = dhParams.P.Value;
- BigInteger g = dhParams.G.Value;
- BigInteger q = dhParams.Q.Value;
-
- BigInteger j = null;
- if (dhParams.J != null)
- {
- j = dhParams.J.Value;
- }
-
- DHValidationParameters validation = null;
- DHValidationParms dhValidationParms = dhParams.ValidationParms;
- if (dhValidationParms != null)
- {
- byte[] seed = dhValidationParms.Seed.GetBytes();
- BigInteger pgenCounter = dhValidationParms.PgenCounter.Value;
-
- // TODO Check pgenCounter size?
-
- validation = new DHValidationParameters(seed, pgenCounter.IntValue);
- }
-
- return new DHPublicKeyParameters(y, new DHParameters(p, g, q, j, validation));
- }
- else if (algOid.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
- {
- Asn1Sequence seq = Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object());
-
- DerInteger derY = (DerInteger) keyInfo.GetPublicKey();
-
- return ReadPkcsDHParam(algOid, derY.Value, seq);
- }
- 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());
+ 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(X9ObjectIdentifiers.DHPublicNumber))
+ {
+ Asn1Sequence seq = Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object());
+
+ DHPublicKey dhPublicKey = DHPublicKey.GetInstance(keyInfo.GetPublicKey());
+
+ BigInteger y = dhPublicKey.Y.Value;
+
+ if (IsPkcsDHParam(seq))
+ return ReadPkcsDHParam(algOid, y, seq);
+
+ DHDomainParameters dhParams = DHDomainParameters.GetInstance(seq);
+
+ BigInteger p = dhParams.P.Value;
+ BigInteger g = dhParams.G.Value;
+ BigInteger q = dhParams.Q.Value;
+
+ BigInteger j = null;
+ if (dhParams.J != null)
+ {
+ j = dhParams.J.Value;
+ }
+
+ DHValidationParameters validation = null;
+ DHValidationParms dhValidationParms = dhParams.ValidationParms;
+ if (dhValidationParms != null)
+ {
+ byte[] seed = dhValidationParms.Seed.GetBytes();
+ BigInteger pgenCounter = dhValidationParms.PgenCounter.Value;
+
+ // TODO Check pgenCounter size?
+
+ validation = new DHValidationParameters(seed, pgenCounter.IntValue);
+ }
+
+ return new DHPublicKeyParameters(y, new DHParameters(p, g, q, j, validation));
+ }
+ else if (algOid.Equals(PkcsObjectIdentifiers.DhKeyAgreement))
+ {
+ Asn1Sequence seq = Asn1Sequence.GetInstance(algID.Parameters.ToAsn1Object());
+
+ DerInteger derY = (DerInteger) keyInfo.GetPublicKey();
+
+ return ReadPkcsDHParam(algOid, derY.Value, seq);
+ }
+ 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 x9;
- if (para.IsNamedCurve)
- {
- x9 = ECKeyPairGenerator.FindECCurveByOid((DerObjectIdentifier)para.Parameters);
- }
- else
- {
- x9 = new X9ECParameters((Asn1Sequence)para.Parameters);
- }
+ if (para.IsNamedCurve)
+ {
+ x9 = ECKeyPairGenerator.FindECCurveByOid((DerObjectIdentifier)para.Parameters);
+ }
+ else
+ {
+ x9 = new X9ECParameters((Asn1Sequence)para.Parameters);
+ }
Asn1OctetString key = new DerOctetString(keyInfo.PublicKeyData.GetBytes());
X9ECPoint derQ = new X9ECPoint(x9.Curve, key);
@@ -151,103 +151,103 @@ namespace Org.BouncyCastle.Security
}
ECDomainParameters dParams = new ECDomainParameters(x9.Curve, x9.G, x9.N, x9.H, x9.GetSeed());
- return new ECPublicKeyParameters(q, 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("ECGOST3410", 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);
- }
+ return new ECPublicKeyParameters(q, 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("ECGOST3410", 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);
}
}
- private static bool IsPkcsDHParam(Asn1Sequence seq)
- {
- if (seq.Count == 2)
- return true;
+ private static bool IsPkcsDHParam(Asn1Sequence seq)
+ {
+ if (seq.Count == 2)
+ return true;
- if (seq.Count > 3)
- return false;
+ if (seq.Count > 3)
+ return false;
- DerInteger l = DerInteger.GetInstance(seq[2]);
- DerInteger p = DerInteger.GetInstance(seq[0]);
+ DerInteger l = DerInteger.GetInstance(seq[2]);
+ DerInteger p = DerInteger.GetInstance(seq[0]);
- return l.Value.CompareTo(BigInteger.ValueOf(p.Value.BitLength)) <= 0;
- }
+ return l.Value.CompareTo(BigInteger.ValueOf(p.Value.BitLength)) <= 0;
+ }
- private static DHPublicKeyParameters ReadPkcsDHParam(DerObjectIdentifier algOid,
- BigInteger y, Asn1Sequence seq)
- {
- DHParameter para = new DHParameter(seq);
+ 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);
+ 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);
- }
- }
+ return new DHPublicKeyParameters(y, dhParams, algOid);
+ }
+ }
}
|
