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

Example 6 with ASN1Sequence

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

the class JDKPKCS12KeyStore method engineGetCertificateChain.

public Certificate[] engineGetCertificateChain(String alias) {
    if (alias == null) {
        throw new IllegalArgumentException("null alias passed to getCertificateChain.");
    }
    if (!engineIsKeyEntry(alias)) {
        return null;
    }
    Certificate c = engineGetCertificate(alias);
    if (c != null) {
        Vector cs = new Vector();
        while (c != null) {
            X509Certificate x509c = (X509Certificate) c;
            Certificate nextC = null;
            byte[] bytes = x509c.getExtensionValue(X509Extensions.AuthorityKeyIdentifier.getId());
            if (bytes != null) {
                try {
                    ASN1InputStream aIn = new ASN1InputStream(bytes);
                    byte[] authBytes = ((ASN1OctetString) aIn.readObject()).getOctets();
                    aIn = new ASN1InputStream(authBytes);
                    AuthorityKeyIdentifier id = new AuthorityKeyIdentifier((ASN1Sequence) aIn.readObject());
                    if (id.getKeyIdentifier() != null) {
                        nextC = (Certificate) chainCerts.get(new CertId(id.getKeyIdentifier()));
                    }
                } catch (IOException e) {
                    throw new RuntimeException(e.toString());
                }
            }
            if (nextC == null) {
                //
                // no authority key id, try the Issuer DN
                //
                Principal i = x509c.getIssuerDN();
                Principal s = x509c.getSubjectDN();
                if (!i.equals(s)) {
                    Enumeration e = chainCerts.keys();
                    while (e.hasMoreElements()) {
                        X509Certificate crt = (X509Certificate) chainCerts.get(e.nextElement());
                        Principal sub = crt.getSubjectDN();
                        if (sub.equals(i)) {
                            try {
                                x509c.verify(crt.getPublicKey());
                                nextC = crt;
                                break;
                            } catch (Exception ex) {
                            // continue
                            }
                        }
                    }
                }
            }
            cs.addElement(c);
            if (// self signed - end of the chain
            nextC != c) {
                c = nextC;
            } else {
                c = null;
            }
        }
        Certificate[] certChain = new Certificate[cs.size()];
        for (int i = 0; i != certChain.length; i++) {
            certChain[i] = (Certificate) cs.elementAt(i);
        }
        return certChain;
    }
    return null;
}

Example 7 with ASN1Sequence

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

the class PEMUtil method readPEMObject.

ASN1Sequence readPEMObject(InputStream in) throws IOException {
    String line;
    StringBuffer pemBuf = new StringBuffer();
    while ((line = readLine(in)) != null) {
        if (line.startsWith(_header1) || line.startsWith(_header2)) {
            break;
        }
    }
    while ((line = readLine(in)) != null) {
        if (line.startsWith(_footer1) || line.startsWith(_footer2)) {
            break;
        }
        pemBuf.append(line);
    }
    if (pemBuf.length() != 0) {
        DERObject o = new ASN1InputStream(Base64.decode(pemBuf.toString())).readObject();
        if (!(o instanceof ASN1Sequence)) {
            throw new IOException("malformed PEM data encountered");
        }
        return (ASN1Sequence) o;
    }
    return null;
}

Example 8 with ASN1Sequence

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

the class RFC3280CertPathUtilities method wrapupCertB.

protected static int wrapupCertB(CertPath certPath, int index, int explicitPolicy) throws CertPathValidatorException {
    List certs = certPath.getCertificates();
    X509Certificate cert = (X509Certificate) certs.get(index);
    //
    // (b)
    //
    int tmpInt;
    ASN1Sequence pc = null;
    try {
        pc = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, RFC3280CertPathUtilities.POLICY_CONSTRAINTS));
    } catch (AnnotatedException e) {
        throw new ExtCertPathValidatorException("Policy constraints could not be decoded.", e, certPath, index);
    }
    if (pc != null) {
        Enumeration policyConstraints = pc.getObjects();
        while (policyConstraints.hasMoreElements()) {
            ASN1TaggedObject constraint = (ASN1TaggedObject) policyConstraints.nextElement();
            switch(constraint.getTagNo()) {
                case 0:
                    try {
                        tmpInt = DERInteger.getInstance(constraint, false).getValue().intValue();
                    } catch (Exception e) {
                        throw new ExtCertPathValidatorException("Policy constraints requireExplicitPolicy field could not be decoded.", e, certPath, index);
                    }
                    if (tmpInt == 0) {
                        return 0;
                    }
                    break;
            }
        }
    }
    return explicitPolicy;
}

Example 9 with ASN1Sequence

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

the class RFC3280CertPathUtilities method processCertBC.

protected static void processCertBC(CertPath certPath, int index, PKIXNameConstraintValidator nameConstraintValidator) throws CertPathValidatorException {
    List certs = certPath.getCertificates();
    X509Certificate cert = (X509Certificate) certs.get(index);
    int n = certs.size();
    // i as defined in the algorithm description
    int i = n - index;
    //
    if (!(CertPathValidatorUtilities.isSelfIssued(cert) && (i < n))) {
        X500Principal principal = CertPathValidatorUtilities.getSubjectPrincipal(cert);
        ASN1InputStream aIn = new ASN1InputStream(principal.getEncoded());
        ASN1Sequence dns;
        try {
            dns = DERSequence.getInstance(aIn.readObject());
        } catch (Exception e) {
            throw new CertPathValidatorException("Exception extracting subject name when checking subtrees.", e, certPath, index);
        }
        try {
            nameConstraintValidator.checkPermittedDN(dns);
            nameConstraintValidator.checkExcludedDN(dns);
        } catch (PKIXNameConstraintValidatorException e) {
            throw new CertPathValidatorException("Subtree check for certificate subject failed.", e, certPath, index);
        }
        GeneralNames altName = null;
        try {
            altName = GeneralNames.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, RFC3280CertPathUtilities.SUBJECT_ALTERNATIVE_NAME));
        } catch (Exception e) {
            throw new CertPathValidatorException("Subject alternative name extension could not be decoded.", e, certPath, index);
        }
        Vector emails = new X509Name(dns).getValues(X509Name.EmailAddress);
        for (Enumeration e = emails.elements(); e.hasMoreElements(); ) {
            String email = (String) e.nextElement();
            GeneralName emailAsGeneralName = new GeneralName(GeneralName.rfc822Name, email);
            try {
                nameConstraintValidator.checkPermitted(emailAsGeneralName);
                nameConstraintValidator.checkExcluded(emailAsGeneralName);
            } catch (PKIXNameConstraintValidatorException ex) {
                throw new CertPathValidatorException("Subtree check for certificate subject alternative email failed.", ex, certPath, index);
            }
        }
        if (altName != null) {
            GeneralName[] genNames = null;
            try {
                genNames = altName.getNames();
            } catch (Exception e) {
                throw new CertPathValidatorException("Subject alternative name contents could not be decoded.", e, certPath, index);
            }
            for (int j = 0; j < genNames.length; j++) {
                try {
                    nameConstraintValidator.checkPermitted(genNames[j]);
                    nameConstraintValidator.checkExcluded(genNames[j]);
                } catch (PKIXNameConstraintValidatorException e) {
                    throw new CertPathValidatorException("Subtree check for certificate subject alternative name failed.", e, certPath, index);
                }
            }
        }
    }
}

Example 10 with ASN1Sequence

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

the class RFC3280CertPathUtilities method prepareNextCertA.

protected static void prepareNextCertA(CertPath certPath, int index) throws CertPathValidatorException {
    List certs = certPath.getCertificates();
    X509Certificate cert = (X509Certificate) certs.get(index);
    //
    //
    // (a) check the policy mappings
    //
    ASN1Sequence pm = null;
    try {
        pm = DERSequence.getInstance(CertPathValidatorUtilities.getExtensionValue(cert, RFC3280CertPathUtilities.POLICY_MAPPINGS));
    } catch (AnnotatedException ex) {
        throw new ExtCertPathValidatorException("Policy mappings extension could not be decoded.", ex, certPath, index);
    }
    if (pm != null) {
        ASN1Sequence mappings = pm;
        for (int j = 0; j < mappings.size(); j++) {
            DERObjectIdentifier issuerDomainPolicy = null;
            DERObjectIdentifier subjectDomainPolicy = null;
            try {
                ASN1Sequence mapping = DERSequence.getInstance(mappings.getObjectAt(j));
                issuerDomainPolicy = DERObjectIdentifier.getInstance(mapping.getObjectAt(0));
                subjectDomainPolicy = DERObjectIdentifier.getInstance(mapping.getObjectAt(1));
            } catch (Exception e) {
                throw new ExtCertPathValidatorException("Policy mappings extension contents could not be decoded.", e, certPath, index);
            }
            if (RFC3280CertPathUtilities.ANY_POLICY.equals(issuerDomainPolicy.getId())) {
                throw new CertPathValidatorException("IssuerDomainPolicy is anyPolicy", null, certPath, index);
            }
            if (RFC3280CertPathUtilities.ANY_POLICY.equals(subjectDomainPolicy.getId())) {
                throw new CertPathValidatorException("SubjectDomainPolicy is anyPolicy,", null, certPath, index);
            }
        }
    }
}