Examples with DERInteger org.bouncycastle.asn1.DERInteger used on opensource projects

Example 21 with DERInteger

use of org.bouncycastle.asn1.DERInteger in project XobotOS by xamarin.

the class EncryptedData method toASN1Object.

public DERObject toASN1Object() {
    ASN1EncodableVector v = new ASN1EncodableVector();
    v.add(new DERInteger(0));
    v.add(data);
    return new BERSequence(v);
}

Example 22 with DERInteger

use of org.bouncycastle.asn1.DERInteger in project XobotOS by xamarin.

the class JCEECPrivateKey method populateFromPrivKeyInfo.

private void populateFromPrivKeyInfo(PrivateKeyInfo info) {
    X962Parameters params = new X962Parameters((DERObject) info.getAlgorithmId().getParameters());
    if (params.isNamedCurve()) {
        DERObjectIdentifier oid = (DERObjectIdentifier) params.getParameters();
        X9ECParameters ecP = ECUtil.getNamedCurveByOid(oid);
        // BEGIN android-removed
        // if (ecP == null) // GOST Curve
        // {
        //     ECDomainParameters gParam = ECGOST3410NamedCurves.getByOID(oid);
        //     EllipticCurve ellipticCurve = EC5Util.convertCurve(gParam.getCurve(), gParam.getSeed());
        //
        //     ecSpec = new ECNamedCurveSpec(
        //             ECGOST3410NamedCurves.getName(oid),
        //             ellipticCurve,
        //             new ECPoint(
        //                     gParam.getG().getX().toBigInteger(),
        //                     gParam.getG().getY().toBigInteger()),
        //             gParam.getN(),
        //             gParam.getH());
        // }
        // else
        // END android-removed
        {
            EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
            ecSpec = new ECNamedCurveSpec(ECUtil.getCurveName(oid), ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH());
        }
    } else if (params.isImplicitlyCA()) {
        ecSpec = null;
    } else {
        X9ECParameters ecP = new X9ECParameters((ASN1Sequence) params.getParameters());
        EllipticCurve ellipticCurve = EC5Util.convertCurve(ecP.getCurve(), ecP.getSeed());
        this.ecSpec = new ECParameterSpec(ellipticCurve, new ECPoint(ecP.getG().getX().toBigInteger(), ecP.getG().getY().toBigInteger()), ecP.getN(), ecP.getH().intValue());
    }
    if (info.getPrivateKey() instanceof DERInteger) {
        DERInteger derD = (DERInteger) info.getPrivateKey();
        this.d = derD.getValue();
    } else {
        ECPrivateKeyStructure ec = new ECPrivateKeyStructure((ASN1Sequence) info.getPrivateKey());
        this.d = ec.getKey();
        this.publicKey = ec.getPublicKey();
    }
}

Example 23 with DERInteger

use of org.bouncycastle.asn1.DERInteger in project XobotOS by xamarin.

the class X509CRLStoreSelector method match.

public boolean match(Object obj) {
    if (!(obj instanceof X509CRL)) {
        return false;
    }
    X509CRL crl = (X509CRL) obj;
    DERInteger dci = null;
    try {
        byte[] bytes = crl.getExtensionValue(X509Extensions.DeltaCRLIndicator.getId());
        if (bytes != null) {
            dci = DERInteger.getInstance(X509ExtensionUtil.fromExtensionValue(bytes));
        }
    } catch (Exception e) {
        return false;
    }
    if (isDeltaCRLIndicatorEnabled()) {
        if (dci == null) {
            return false;
        }
    }
    if (isCompleteCRLEnabled()) {
        if (dci != null) {
            return false;
        }
    }
    if (dci != null) {
        if (maxBaseCRLNumber != null) {
            if (dci.getPositiveValue().compareTo(maxBaseCRLNumber) == 1) {
                return false;
            }
        }
    }
    if (issuingDistributionPointEnabled) {
        byte[] idp = crl.getExtensionValue(X509Extensions.IssuingDistributionPoint.getId());
        if (issuingDistributionPoint == null) {
            if (idp != null) {
                return false;
            }
        } else {
            if (!Arrays.areEqual(idp, issuingDistributionPoint)) {
                return false;
            }
        }
    }
    return super.match((X509CRL) obj);
}

Example 24 with DERInteger

use of org.bouncycastle.asn1.DERInteger in project XobotOS by xamarin.

the class PublicKeyFactory method createKey.

/**
     * Create a public key from the passed in SubjectPublicKeyInfo
     * 
     * @param keyInfo the SubjectPublicKeyInfo containing the key data
     * @return the appropriate key parameter
     * @throws IOException on an error decoding the key
     */
public static AsymmetricKeyParameter createKey(SubjectPublicKeyInfo keyInfo) throws IOException {
    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(X9ObjectIdentifiers.dhpublicnumber)) {
        DHPublicKey dhPublicKey = DHPublicKey.getInstance(keyInfo.getPublicKey());
        BigInteger y = dhPublicKey.getY().getValue();
        DHDomainParameters dhParams = DHDomainParameters.getInstance(keyInfo.getAlgorithmId().getParameters());
        BigInteger p = dhParams.getP().getValue();
        BigInteger g = dhParams.getG().getValue();
        BigInteger q = dhParams.getQ().getValue();
        BigInteger j = null;
        if (dhParams.getJ() != null) {
            j = dhParams.getJ().getValue();
        }
        DHValidationParameters validation = null;
        DHValidationParms dhValidationParms = dhParams.getValidationParms();
        if (dhValidationParms != null) {
            byte[] seed = dhValidationParms.getSeed().getBytes();
            BigInteger pgenCounter = dhValidationParms.getPgenCounter().getValue();
            // TODO Check pgenCounter size?
            validation = new DHValidationParameters(seed, pgenCounter.intValue());
        }
        return new DHPublicKeyParameters(y, new DHParameters(p, g, q, j, validation));
    } else if (algId.getObjectId().equals(PKCSObjectIdentifiers.dhKeyAgreement)) {
        DHParameter params = new DHParameter((ASN1Sequence) keyInfo.getAlgorithmId().getParameters());
        DERInteger derY = (DERInteger) keyInfo.getPublicKey();
        BigInteger lVal = params.getL();
        int l = lVal == null ? 0 : lVal.intValue();
        DHParameters dhParams = new DHParameters(params.getP(), params.getG(), null, l);
        return new DHPublicKeyParameters(derY.getValue(), dhParams);
    } else // END android-removed
    if (algId.getObjectId().equals(X9ObjectIdentifiers.id_dsa) || algId.getObjectId().equals(OIWObjectIdentifiers.dsaWithSHA1)) {
        DERInteger derY = (DERInteger) keyInfo.getPublicKey();
        DEREncodable de = keyInfo.getAlgorithmId().getParameters();
        DSAParameters parameters = null;
        if (de != null) {
            DSAParameter params = DSAParameter.getInstance(de.getDERObject());
            parameters = new DSAParameters(params.getP(), params.getQ(), params.getG());
        }
        return new DSAPublicKeyParameters(derY.getValue(), parameters);
    } else if (algId.getObjectId().equals(X9ObjectIdentifiers.id_ecPublicKey)) {
        X962Parameters params = new X962Parameters((DERObject) keyInfo.getAlgorithmId().getParameters());
        ECDomainParameters dParams = null;
        if (params.isNamedCurve()) {
            DERObjectIdentifier oid = (DERObjectIdentifier) params.getParameters();
            X9ECParameters ecP = X962NamedCurves.getByOID(oid);
            if (ecP == null) {
                ecP = SECNamedCurves.getByOID(oid);
                if (ecP == null) {
                    ecP = NISTNamedCurves.getByOID(oid);
                // BEGIN android-removed
                // if (ecP == null)
                // {
                //     ecP = TeleTrusTNamedCurves.getByOID(oid);
                // }
                // END android-removed
                }
            }
            dParams = new ECDomainParameters(ecP.getCurve(), ecP.getG(), ecP.getN(), ecP.getH(), ecP.getSeed());
        } else {
            X9ECParameters ecP = new X9ECParameters((ASN1Sequence) params.getParameters());
            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 RuntimeException("algorithm identifier in key not recognised");
    }
}

Example 25 with DERInteger

use of org.bouncycastle.asn1.DERInteger in project XobotOS by xamarin.

the class X9ECParameters method toASN1Object.

/**
     * Produce an object suitable for an ASN1OutputStream.
     * <pre>
     *  ECParameters ::= SEQUENCE {
     *      version         INTEGER { ecpVer1(1) } (ecpVer1),
     *      fieldID         FieldID {{FieldTypes}},
     *      curve           X9Curve,
     *      base            X9ECPoint,
     *      order           INTEGER,
     *      cofactor        INTEGER OPTIONAL
     *  }
     * </pre>
     */
public DERObject toASN1Object() {
    ASN1EncodableVector v = new ASN1EncodableVector();
    v.add(new DERInteger(1));
    v.add(fieldID);
    v.add(new X9Curve(curve, seed));
    v.add(new X9ECPoint(g));
    v.add(new DERInteger(n));
    if (h != null) {
        v.add(new DERInteger(h));
    }
    return new DERSequence(v);
}