Examples with AlgorithmIdentifier org.bouncycastle.asn1.x509.AlgorithmIdentifier used on opensource projects

Example 6 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project android_frameworks_base by ResurrectionRemix.

the class AndroidKeyStoreKeyPairGeneratorSpi method generateSelfSignedCertificateWithFakeSignature.

@SuppressWarnings("deprecation")
private X509Certificate generateSelfSignedCertificateWithFakeSignature(PublicKey publicKey) throws IOException, CertificateParsingException {
    V3TBSCertificateGenerator tbsGenerator = new V3TBSCertificateGenerator();
    ASN1ObjectIdentifier sigAlgOid;
    AlgorithmIdentifier sigAlgId;
    byte[] signature;
    switch(mKeymasterAlgorithm) {
        case KeymasterDefs.KM_ALGORITHM_EC:
            sigAlgOid = X9ObjectIdentifiers.ecdsa_with_SHA256;
            sigAlgId = new AlgorithmIdentifier(sigAlgOid);
            ASN1EncodableVector v = new ASN1EncodableVector();
            v.add(new DERInteger(0));
            v.add(new DERInteger(0));
            signature = new DERSequence().getEncoded();
            break;
        case KeymasterDefs.KM_ALGORITHM_RSA:
            sigAlgOid = PKCSObjectIdentifiers.sha256WithRSAEncryption;
            sigAlgId = new AlgorithmIdentifier(sigAlgOid, DERNull.INSTANCE);
            signature = new byte[1];
            break;
        default:
            throw new ProviderException("Unsupported key algorithm: " + mKeymasterAlgorithm);
    }
    try (ASN1InputStream publicKeyInfoIn = new ASN1InputStream(publicKey.getEncoded())) {
        tbsGenerator.setSubjectPublicKeyInfo(SubjectPublicKeyInfo.getInstance(publicKeyInfoIn.readObject()));
    }
    tbsGenerator.setSerialNumber(new ASN1Integer(mSpec.getCertificateSerialNumber()));
    X509Principal subject = new X509Principal(mSpec.getCertificateSubject().getEncoded());
    tbsGenerator.setSubject(subject);
    tbsGenerator.setIssuer(subject);
    tbsGenerator.setStartDate(new Time(mSpec.getCertificateNotBefore()));
    tbsGenerator.setEndDate(new Time(mSpec.getCertificateNotAfter()));
    tbsGenerator.setSignature(sigAlgId);
    TBSCertificate tbsCertificate = tbsGenerator.generateTBSCertificate();
    ASN1EncodableVector result = new ASN1EncodableVector();
    result.add(tbsCertificate);
    result.add(sigAlgId);
    result.add(new DERBitString(signature));
    return new X509CertificateObject(Certificate.getInstance(new DERSequence(result)));
}

Example 7 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project nhin-d by DirectProject.

the class SplitDirectRecipientInformationFactory method createInstance.

/**
	 * {@inheritDoc}
	 */
@Override
public DirectRecipientInformation createInstance(RecipientInformation recipient, SMIMEEnveloped env) {
    try {
        if (recipient == null)
            return null;
        final Field infoField = recipient.getClass().getDeclaredField("_info");
        infoField.setAccessible(true);
        final Object info = infoField.get(recipient);
        if (!(info instanceof KeyTransRecipientInfo)) {
            // fall back to the default if we don't know how to handle this info type
            return new DefaultDirectRecipientInformation(recipient, "");
        }
        final Field encAlgField = CMSEnvelopedData.class.getDeclaredField("encAlg");
        encAlgField.setAccessible(true);
        final Object encAlg = encAlgField.get(env);
        final Field dataField = RecipientInformation.class.getDeclaredField("_data");
        dataField.setAccessible(true);
        final Object data = dataField.get(recipient);
        return new SplitDirectRecipientInformation((KeyTransRecipientInfo) info, (AlgorithmIdentifier) encAlg, (InputStream) data, encProvider, keyEncProvider);
    } catch (Exception e) {
        throw new IllegalStateException("RecipientInformation configuration is not recognized: " + e.getMessage(), e);
    }
}

Example 8 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project XobotOS by xamarin.

the class PrivateKeyFactory method createKey.

/**
     * Create a private key parameter from the passed in PKCS8 PrivateKeyInfo object.
     * 
     * @param keyInfo the PrivateKeyInfo object containing the key material
     * @return a suitable private key parameter
     * @throws IOException on an error decoding the key
     */
public static AsymmetricKeyParameter createKey(PrivateKeyInfo keyInfo) throws IOException {
    AlgorithmIdentifier algId = keyInfo.getAlgorithmId();
    if (algId.getAlgorithm().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 //      else if (algId.getObjectId().equals(X9ObjectIdentifiers.dhpublicnumber))
    if (algId.getObjectId().equals(PKCSObjectIdentifiers.dhKeyAgreement)) {
        DHParameter params = new DHParameter((ASN1Sequence) keyInfo.getAlgorithmId().getParameters());
        DERInteger derX = (DERInteger) keyInfo.getPrivateKey();
        BigInteger lVal = params.getL();
        int l = lVal == null ? 0 : lVal.intValue();
        DHParameters dhParams = new DHParameters(params.getP(), params.getG(), null, l);
        return new DHPrivateKeyParameters(derX.getValue(), dhParams);
    } else // END android-removed
    if (algId.getObjectId().equals(X9ObjectIdentifiers.id_dsa)) {
        DERInteger derX = (DERInteger) keyInfo.getPrivateKey();
        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 DSAPrivateKeyParameters(derX.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());
        }
        ECPrivateKeyStructure ec = new ECPrivateKeyStructure((ASN1Sequence) keyInfo.getPrivateKey());
        return new ECPrivateKeyParameters(ec.getKey(), dParams);
    } else {
        throw new RuntimeException("algorithm identifier in key not recognised");
    }
}

Example 9 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project XobotOS by xamarin.

the class PKCS10CertificationRequest method getPublicKey.

public PublicKey getPublicKey(String provider) throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeyException {
    SubjectPublicKeyInfo subjectPKInfo = reqInfo.getSubjectPublicKeyInfo();
    X509EncodedKeySpec xspec = new X509EncodedKeySpec(new DERBitString(subjectPKInfo).getBytes());
    AlgorithmIdentifier keyAlg = subjectPKInfo.getAlgorithmId();
    try {
        try {
            if (provider == null) {
                return KeyFactory.getInstance(keyAlg.getObjectId().getId()).generatePublic(xspec);
            } else {
                return KeyFactory.getInstance(keyAlg.getObjectId().getId(), provider).generatePublic(xspec);
            }
        } catch (NoSuchAlgorithmException e) {
            //
            if (keyAlgorithms.get(keyAlg.getObjectId()) != null) {
                String keyAlgorithm = (String) keyAlgorithms.get(keyAlg.getObjectId());
                if (provider == null) {
                    return KeyFactory.getInstance(keyAlgorithm).generatePublic(xspec);
                } else {
                    return KeyFactory.getInstance(keyAlgorithm, provider).generatePublic(xspec);
                }
            }
            throw e;
        }
    } catch (InvalidKeySpecException e) {
        throw new InvalidKeyException("error decoding public key");
    }
}

Example 10 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project XobotOS by xamarin.

the class CertPathValidatorUtilities method getAlgorithmIdentifier.

protected static AlgorithmIdentifier getAlgorithmIdentifier(PublicKey key) throws CertPathValidatorException {
    try {
        ASN1InputStream aIn = new ASN1InputStream(key.getEncoded());
        SubjectPublicKeyInfo info = SubjectPublicKeyInfo.getInstance(aIn.readObject());
        return info.getAlgorithmId();
    } catch (Exception e) {
        throw new ExtCertPathValidatorException("Subject public key cannot be decoded.", e);
    }
}