/**
* Produce an object suitable for an ASN1OutputStream.
* <pre>
* TBSRequest ::= SEQUENCE {
* version [0] EXPLICIT Version DEFAULT v1,
* requestorName [1] EXPLICIT GeneralName OPTIONAL,
* requestList SEQUENCE OF Request,
* requestExtensions [2] EXPLICIT Extensions OPTIONAL }
* </pre>
*/
public override ASN1Object toASN1Object()
{
ASN1EncodableVector v = new ASN1EncodableVector();
//
// if default don't include.
//
if (version.getValue().intValue() != 0)
{
v.add(new DERTaggedObject(true, 0, version));
}
if (requestorName != null)
{
v.add(new DERTaggedObject(true, 1, requestorName));
}
v.add(requestList);
if (requestExtensions != null)
{
v.add(new DERTaggedObject(true, 2, requestExtensions));
}
return(new DERSequence(v));
}
public BigInteger getMaximum()
{
if (maximum == null)
{
return(null);
}
return(maximum.getValue());
}
public BigInteger getAuthorityCertSerialNumber()
{
if (certserno != null)
{
return(certserno.getValue());
}
return(null);
}
public BigInteger getMinimum()
{
if (minimum == null)
{
return(BigInteger.valueOf(0));
}
return(minimum.getValue());
}
public BigInteger getKeyLength()
{
if (keyLength != null)
{
return(keyLength.getValue());
}
return(null);
}
public BigInteger getRC2ParameterVersion()
{
if (version == null)
{
return(null);
}
return(version.getValue());
}
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 BigInteger getIterations()
{
return(iterations.getValue());
}
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 int getKeyLength()
{
return(keyLength.getValue().intValue());
}
public int getVersion()
{
return(version.getValue().intValue() + 1);
}
public BigInteger getIterationCount()
{
return(iterationCount.getValue());
}