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

Example 6 with DERInteger

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

the class MiscPEMGenerator method createPemObject.

private PemObject createPemObject(Object o) throws IOException {
    String type;
    byte[] encoding;
    if (o instanceof PemObject) {
        return (PemObject) o;
    }
    if (o instanceof PemObjectGenerator) {
        return ((PemObjectGenerator) o).generate();
    }
    if (o instanceof X509Certificate) {
        type = "CERTIFICATE";
        try {
            encoding = ((X509Certificate) o).getEncoded();
        } catch (CertificateEncodingException e) {
            throw new PemGenerationException("Cannot encode object: " + e.toString());
        }
    } else if (o instanceof X509CRL) {
        type = "X509 CRL";
        try {
            encoding = ((X509CRL) o).getEncoded();
        } catch (CRLException e) {
            throw new PemGenerationException("Cannot encode object: " + e.toString());
        }
    } else if (o instanceof KeyPair) {
        return createPemObject(((KeyPair) o).getPrivate());
    } else if (o instanceof PrivateKey) {
        PrivateKeyInfo info = new PrivateKeyInfo((ASN1Sequence) ASN1Object.fromByteArray(((Key) o).getEncoded()));
        if (o instanceof RSAPrivateKey) {
            type = "RSA PRIVATE KEY";
            encoding = info.getPrivateKey().getEncoded();
        } else if (o instanceof DSAPrivateKey) {
            type = "DSA PRIVATE KEY";
            DSAParameter p = DSAParameter.getInstance(info.getAlgorithmId().getParameters());
            ASN1EncodableVector v = new ASN1EncodableVector();
            v.add(new DERInteger(0));
            v.add(new DERInteger(p.getP()));
            v.add(new DERInteger(p.getQ()));
            v.add(new DERInteger(p.getG()));
            BigInteger x = ((DSAPrivateKey) o).getX();
            BigInteger y = p.getG().modPow(x, p.getP());
            v.add(new DERInteger(y));
            v.add(new DERInteger(x));
            encoding = new DERSequence(v).getEncoded();
        } else if (((PrivateKey) o).getAlgorithm().equals("ECDSA")) {
            type = "EC PRIVATE KEY";
            encoding = info.getPrivateKey().getEncoded();
        } else {
            throw new IOException("Cannot identify private key");
        }
    } else if (o instanceof PublicKey) {
        type = "PUBLIC KEY";
        encoding = ((PublicKey) o).getEncoded();
    } else if (o instanceof X509AttributeCertificate) {
        type = "ATTRIBUTE CERTIFICATE";
        encoding = ((X509V2AttributeCertificate) o).getEncoded();
    } else if (o instanceof PKCS10CertificationRequest) {
        type = "CERTIFICATE REQUEST";
        encoding = ((PKCS10CertificationRequest) o).getEncoded();
    } else if (o instanceof ContentInfo) {
        type = "PKCS7";
        encoding = ((ContentInfo) o).getEncoded();
    } else {
        throw new PemGenerationException("unknown object passed - can't encode.");
    }
    return new PemObject(type, encoding);
}

Example 7 with DERInteger

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

the class MiscPEMGenerator method createPemObject.

private PemObject createPemObject(Object obj, String algorithm, char[] password, SecureRandom random) throws IOException {
    if (obj instanceof KeyPair) {
        return createPemObject(((KeyPair) obj).getPrivate(), algorithm, password, random);
    }
    String type = null;
    byte[] keyData = null;
    if (obj instanceof RSAPrivateCrtKey) {
        type = "RSA PRIVATE KEY";
        RSAPrivateCrtKey k = (RSAPrivateCrtKey) obj;
        RSAPrivateKeyStructure keyStruct = new RSAPrivateKeyStructure(k.getModulus(), k.getPublicExponent(), k.getPrivateExponent(), k.getPrimeP(), k.getPrimeQ(), k.getPrimeExponentP(), k.getPrimeExponentQ(), k.getCrtCoefficient());
        // convert to bytearray
        keyData = keyStruct.getEncoded();
    } else if (obj instanceof DSAPrivateKey) {
        type = "DSA PRIVATE KEY";
        DSAPrivateKey k = (DSAPrivateKey) obj;
        DSAParams p = k.getParams();
        ASN1EncodableVector v = new ASN1EncodableVector();
        v.add(new DERInteger(0));
        v.add(new DERInteger(p.getP()));
        v.add(new DERInteger(p.getQ()));
        v.add(new DERInteger(p.getG()));
        BigInteger x = k.getX();
        BigInteger y = p.getG().modPow(x, p.getP());
        v.add(new DERInteger(y));
        v.add(new DERInteger(x));
        keyData = new DERSequence(v).getEncoded();
    } else if (obj instanceof PrivateKey && "ECDSA".equals(((PrivateKey) obj).getAlgorithm())) {
        type = "EC PRIVATE KEY";
        PrivateKeyInfo privInfo = PrivateKeyInfo.getInstance(ASN1Object.fromByteArray(((PrivateKey) obj).getEncoded()));
        keyData = privInfo.getPrivateKey().getEncoded();
    }
    if (type == null || keyData == null) {
        // TODO Support other types?
        throw new IllegalArgumentException("Object type not supported: " + obj.getClass().getName());
    }
    String dekAlgName = Strings.toUpperCase(algorithm);
    // Note: For backward compatibility
    if (dekAlgName.equals("DESEDE")) {
        dekAlgName = "DES-EDE3-CBC";
    }
    int ivLength = dekAlgName.startsWith("AES-") ? 16 : 8;
    byte[] iv = new byte[ivLength];
    random.nextBytes(iv);
    byte[] encData = PEMUtilities.crypt(true, provider, keyData, password, dekAlgName, iv);
    List headers = new ArrayList(2);
    headers.add(new PemHeader("Proc-Type", "4,ENCRYPTED"));
    headers.add(new PemHeader("DEK-Info", dekAlgName + "," + getHexEncoded(iv)));
    return new PemObject(type, headers, encData);
}

Example 8 with DERInteger

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

the class RFC3280CertPathUtilities method prepareNextCertJ.

protected static int prepareNextCertJ(CertPath certPath, int index, int inhibitAnyPolicy) throws CertPathValidatorException {
    List certs = certPath.getCertificates();
    X509Certificate cert = (X509Certificate) certs.get(index);
    //
    // (j)
    //
    DERInteger iap = null;
    try {
        iap = DERInteger.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, RFC3280CertPathUtilities.INHIBIT_ANY_POLICY));
    } catch (Exception e) {
        throw new ExtCertPathValidatorException("Inhibit any-policy extension cannot be decoded.", e, certPath, index);
    }
    if (iap != null) {
        int _inhibitAnyPolicy = iap.getValue().intValue();
        if (_inhibitAnyPolicy < inhibitAnyPolicy) {
            return _inhibitAnyPolicy;
        }
    }
    return inhibitAnyPolicy;
}

Example 9 with DERInteger

use of org.bouncycastle.asn1.DERInteger 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 10 with DERInteger

use of org.bouncycastle.asn1.DERInteger in project android_frameworks_base by AOSPA.

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)));
}