Examples with ASN1Sequence org.bouncycastle.asn1.ASN1Sequence used on opensource projects

Example 11 with ASN1Sequence

use of org.bouncycastle.asn1.ASN1Sequence in project XobotOS by xamarin.

the class RFC3280CertPathUtilities method prepareNextCertI2.

protected static int prepareNextCertI2(CertPath certPath, int index, int policyMapping) throws CertPathValidatorException {
    List certs = certPath.getCertificates();
    X509Certificate cert = (X509Certificate) certs.get(index);
    //
    // (i)
    //
    ASN1Sequence pc = null;
    try {
        pc = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, RFC3280CertPathUtilities.POLICY_CONSTRAINTS));
    } catch (Exception e) {
        throw new ExtCertPathValidatorException("Policy constraints extension cannot be decoded.", e, certPath, index);
    }
    int tmpInt;
    if (pc != null) {
        Enumeration policyConstraints = pc.getObjects();
        while (policyConstraints.hasMoreElements()) {
            try {
                ASN1TaggedObject constraint = ASN1TaggedObject.getInstance(policyConstraints.nextElement());
                if (constraint.getTagNo() == 1) {
                    tmpInt = DERInteger.getInstance(constraint, false).getValue().intValue();
                    if (tmpInt < policyMapping) {
                        return tmpInt;
                    }
                    break;
                }
            } catch (IllegalArgumentException e) {
                throw new ExtCertPathValidatorException("Policy constraints extension contents cannot be decoded.", e, certPath, index);
            }
        }
    }
    return policyMapping;
}

Example 12 with ASN1Sequence

use of org.bouncycastle.asn1.ASN1Sequence in project Resurrection_packages_apps_Settings by ResurrectionRemix.

the class CertInstallerHelper method isCa.

private boolean isCa(X509Certificate cert) {
    try {
        byte[] asn1EncodedBytes = cert.getExtensionValue("2.5.29.19");
        if (asn1EncodedBytes == null) {
            return false;
        }
        DEROctetString derOctetString = (DEROctetString) new ASN1InputStream(asn1EncodedBytes).readObject();
        byte[] octets = derOctetString.getOctets();
        ASN1Sequence sequence = (ASN1Sequence) new ASN1InputStream(octets).readObject();
        return BasicConstraints.getInstance(sequence).isCA();
    } catch (IOException e) {
        return false;
    }
}

Example 13 with ASN1Sequence

use of org.bouncycastle.asn1.ASN1Sequence in project nhin-d by DirectProject.

the class CertGenerator method createCertFromCSR.

public static X509Certificate createCertFromCSR(PKCS10CertificationRequest certReq, CertCreateFields signerCert) throws Exception {
    certReq.verify();
    final CertificationRequestInfo reqInfo = certReq.getCertificationRequestInfo();
    final X509V3CertificateGenerator v1CertGen = new X509V3CertificateGenerator();
    final Calendar start = Calendar.getInstance();
    final Calendar end = Calendar.getInstance();
    end.add(Calendar.YEAR, 3);
    v1CertGen.setSerialNumber(BigInteger.valueOf(generatePositiveRandom()));
    // issuer is the parent cert
    v1CertGen.setIssuerDN(signerCert.getSignerCert().getSubjectX500Principal());
    v1CertGen.setNotBefore(start.getTime());
    v1CertGen.setNotAfter(end.getTime());
    v1CertGen.setSubjectDN(new X509Principal(reqInfo.getSubject().toString()));
    v1CertGen.setPublicKey(certReq.getPublicKey());
    v1CertGen.setSignatureAlgorithm("SHA256WithRSAEncryption");
    final ASN1Set attributesAsn1Set = reqInfo.getAttributes();
    X509Extensions certificateRequestExtensions = null;
    for (int i = 0; i < attributesAsn1Set.size(); ++i) {
        // There should be only only one attribute in the set. (that is, only
        // the `Extension Request`, but loop through to find it properly)
        final DEREncodable derEncodable = attributesAsn1Set.getObjectAt(i);
        if (derEncodable instanceof DERSequence) {
            final Attribute attribute = new Attribute((DERSequence) attributesAsn1Set.getObjectAt(i));
            if (attribute.getAttrType().equals(PKCSObjectIdentifiers.pkcs_9_at_extensionRequest)) {
                // The `Extension Request` attribute is present.
                final ASN1Set attributeValues = attribute.getAttrValues();
                // Assume that it is the first value of the set.
                if (attributeValues.size() >= 1) {
                    certificateRequestExtensions = new X509Extensions((ASN1Sequence) attributeValues.getObjectAt(0));
                // No need to search any more.
                //break;
                }
            }
        }
    }
    @SuppressWarnings("unchecked") Enumeration<DERObjectIdentifier> oids = certificateRequestExtensions.oids();
    while (oids.hasMoreElements()) {
        DERObjectIdentifier oid = oids.nextElement();
        X509Extension ex = certificateRequestExtensions.getExtension(oid);
        v1CertGen.addExtension(oid, ex.isCritical(), X509Extension.convertValueToObject(ex));
    }
    return v1CertGen.generate((PrivateKey) signerCert.getSignerKey(), CryptoExtensions.getJCEProviderName());
}

Example 14 with ASN1Sequence

use of org.bouncycastle.asn1.ASN1Sequence 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 15 with ASN1Sequence

use of org.bouncycastle.asn1.ASN1Sequence in project XobotOS by xamarin.

the class CertPathValidatorUtilities method getQualifierSet.

// crl checking
//
// policy checking
// 
protected static final Set getQualifierSet(ASN1Sequence qualifiers) throws CertPathValidatorException {
    Set pq = new HashSet();
    if (qualifiers == null) {
        return pq;
    }
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    ASN1OutputStream aOut = new ASN1OutputStream(bOut);
    Enumeration e = qualifiers.getObjects();
    while (e.hasMoreElements()) {
        try {
            aOut.writeObject(e.nextElement());
            pq.add(new PolicyQualifierInfo(bOut.toByteArray()));
        } catch (IOException ex) {
            throw new ExtCertPathValidatorException("Policy qualifier info cannot be decoded.", ex);
        }
        bOut.reset();
    }
    return pq;
}