Examples with KeyUsageExtension sun.security.x509.KeyUsageExtension used on opensource projects

Example 6 with KeyUsageExtension

use of sun.security.x509.KeyUsageExtension in project Bytecoder by mirkosertic.

the class SignerInfo method verify.

/* Returns null if verify fails, this signerInfo if
       verify succeeds. */
SignerInfo verify(PKCS7 block, byte[] data) throws NoSuchAlgorithmException, SignatureException {
    try {
        ContentInfo content = block.getContentInfo();
        if (data == null) {
            data = content.getContentBytes();
        }
        Timestamp timestamp = null;
        try {
            timestamp = getTimestamp();
        } catch (Exception ignore) {
        }
        ConstraintsParameters cparams = new ConstraintsParameters(timestamp);
        String digestAlgname = getDigestAlgorithmId().getName();
        byte[] dataSigned;
        // digest and compare it with the digest of data
        if (authenticatedAttributes == null) {
            dataSigned = data;
        } else {
            // first, check content type
            ObjectIdentifier contentType = (ObjectIdentifier) authenticatedAttributes.getAttributeValue(PKCS9Attribute.CONTENT_TYPE_OID);
            if (contentType == null || !contentType.equals(content.contentType))
                // contentType does not match, bad SignerInfo
                return null;
            // now, check message digest
            byte[] messageDigest = (byte[]) authenticatedAttributes.getAttributeValue(PKCS9Attribute.MESSAGE_DIGEST_OID);
            if (// fail if there is no message digest
            messageDigest == null)
                return null;
            // check that digest algorithm is not restricted
            try {
                JAR_DISABLED_CHECK.permits(digestAlgname, cparams);
            } catch (CertPathValidatorException e) {
                throw new SignatureException(e.getMessage(), e);
            }
            MessageDigest md = MessageDigest.getInstance(digestAlgname);
            byte[] computedMessageDigest = md.digest(data);
            if (messageDigest.length != computedMessageDigest.length)
                return null;
            for (int i = 0; i < messageDigest.length; i++) {
                if (messageDigest[i] != computedMessageDigest[i])
                    return null;
            }
            // message digest attribute matched
            // digest of original data
            // the data actually signed is the DER encoding of
            // the authenticated attributes (tagged with
            // the "SET OF" tag, not 0xA0).
            dataSigned = authenticatedAttributes.getDerEncoding();
        }
        // put together digest algorithm and encryption algorithm
        // to form signing algorithm
        String encryptionAlgname = getDigestEncryptionAlgorithmId().getName();
        // Workaround: sometimes the encryptionAlgname is actually
        // a signature name
        String tmp = AlgorithmId.getEncAlgFromSigAlg(encryptionAlgname);
        if (tmp != null)
            encryptionAlgname = tmp;
        String algname = AlgorithmId.makeSigAlg(digestAlgname, encryptionAlgname);
        // check that jar signature algorithm is not restricted
        try {
            JAR_DISABLED_CHECK.permits(algname, cparams);
        } catch (CertPathValidatorException e) {
            throw new SignatureException(e.getMessage(), e);
        }
        X509Certificate cert = getCertificate(block);
        if (cert == null) {
            return null;
        }
        PublicKey key = cert.getPublicKey();
        // check if the public key is restricted
        if (!JAR_DISABLED_CHECK.permits(SIG_PRIMITIVE_SET, key)) {
            throw new SignatureException("Public key check failed. " + "Disabled key used: " + KeyUtil.getKeySize(key) + " bit " + key.getAlgorithm());
        }
        if (cert.hasUnsupportedCriticalExtension()) {
            throw new SignatureException("Certificate has unsupported " + "critical extension(s)");
        }
        // Make sure that if the usage of the key in the certificate is
        // restricted, it can be used for digital signatures.
        // XXX We may want to check for additional extensions in the
        // future.
        boolean[] keyUsageBits = cert.getKeyUsage();
        if (keyUsageBits != null) {
            KeyUsageExtension keyUsage;
            try {
                // We don't care whether or not this extension was marked
                // critical in the certificate.
                // We're interested only in its value (i.e., the bits set)
                // and treat the extension as critical.
                keyUsage = new KeyUsageExtension(keyUsageBits);
            } catch (IOException ioe) {
                throw new SignatureException("Failed to parse keyUsage " + "extension");
            }
            boolean digSigAllowed = keyUsage.get(KeyUsageExtension.DIGITAL_SIGNATURE).booleanValue();
            boolean nonRepuAllowed = keyUsage.get(KeyUsageExtension.NON_REPUDIATION).booleanValue();
            if (!digSigAllowed && !nonRepuAllowed) {
                throw new SignatureException("Key usage restricted: " + "cannot be used for " + "digital signatures");
            }
        }
        Signature sig = Signature.getInstance(algname);
        sig.initVerify(key);
        sig.update(dataSigned);
        if (sig.verify(encryptedDigest)) {
            return this;
        }
    } catch (IOException e) {
        throw new SignatureException("IO error verifying signature:\n" + e.getMessage());
    } catch (InvalidKeyException e) {
        throw new SignatureException("InvalidKey: " + e.getMessage());
    }
    return null;
}

Example 7 with KeyUsageExtension

use of sun.security.x509.KeyUsageExtension in project OpenAttestation by OpenAttestation.

the class X509Builder method keyUsageKeyEncipherment.

public X509Builder keyUsageKeyEncipherment() {
    // for encrypting and transporting other keys
    try {
        v3();
        if (keyUsageExtension == null) {
            keyUsageExtension = new KeyUsageExtension();
        }
        keyUsageExtension.set(KeyUsageExtension.KEY_ENCIPHERMENT, true);
        if (certificateExtensions == null) {
            certificateExtensions = new CertificateExtensions();
        }
        certificateExtensions.set(keyUsageExtension.getExtensionId().toString(), keyUsageExtension);
        info.set(X509CertInfo.EXTENSIONS, certificateExtensions);
    } catch (Exception e) {
        fault(e, "keyUsageKeyEncipherment");
    }
    return this;
}

Example 8 with KeyUsageExtension

use of sun.security.x509.KeyUsageExtension in project OpenAttestation by OpenAttestation.

the class X509Builder method keyUsageNonRepudiation.

public X509Builder keyUsageNonRepudiation() {
    // other than CA or CRL; this applies to API clients
    try {
        v3();
        if (keyUsageExtension == null) {
            keyUsageExtension = new KeyUsageExtension();
        }
        keyUsageExtension.set(KeyUsageExtension.NON_REPUDIATION, true);
        if (certificateExtensions == null) {
            certificateExtensions = new CertificateExtensions();
        }
        certificateExtensions.set(keyUsageExtension.getExtensionId().toString(), keyUsageExtension);
        info.set(X509CertInfo.EXTENSIONS, certificateExtensions);
    } catch (Exception e) {
        fault(e, "keyUsageNonRepudiation");
    }
    return this;
}

Example 9 with KeyUsageExtension

use of sun.security.x509.KeyUsageExtension in project OpenAttestation by OpenAttestation.

the class X509Builder method keyUsageCertificateAuthority.

public X509Builder keyUsageCertificateAuthority() {
    try {
        v3();
        // certificate authority basic constraint
        // true indicates this is a CA;  -1 means no restriction on path length;  0 or more to set a restriction on max number of certs under this one in the chain
        BasicConstraintsExtension constraintsExtension = new BasicConstraintsExtension(true, -1);
        // certificate signing extension
        if (keyUsageExtension == null) {
            keyUsageExtension = new KeyUsageExtension();
        }
        keyUsageExtension.set(KeyUsageExtension.KEY_CERTSIGN, true);
        // add both
        if (certificateExtensions == null) {
            certificateExtensions = new CertificateExtensions();
        }
        certificateExtensions.set(keyUsageExtension.getExtensionId().toString(), keyUsageExtension);
        certificateExtensions.set(constraintsExtension.getExtensionId().toString(), constraintsExtension);
        info.set(X509CertInfo.EXTENSIONS, certificateExtensions);
    } catch (Exception e) {
        fault(e, "keyUsageCertificateAuthority");
    }
    return this;
}

Example 10 with KeyUsageExtension

use of sun.security.x509.KeyUsageExtension in project jdk8u_jdk by JetBrains.

the class NamedBitList method main.

public static void main(String[] args) throws Exception {
    boolean[] bb = (new boolean[] { true, false, true, false, false, false });
    GeneralNames gns = new GeneralNames();
    gns.add(new GeneralName(new DNSName("dns")));
    DerOutputStream out;
    // length should be 5 since only {T,F,T} should be encoded
    KeyUsageExtension x1 = new KeyUsageExtension(bb);
    check(new DerValue(x1.getExtensionValue()).getUnalignedBitString().length(), 3);
    NetscapeCertTypeExtension x2 = new NetscapeCertTypeExtension(bb);
    check(new DerValue(x2.getExtensionValue()).getUnalignedBitString().length(), 3);
    ReasonFlags r = new ReasonFlags(bb);
    out = new DerOutputStream();
    r.encode(out);
    check(new DerValue(out.toByteArray()).getUnalignedBitString().length(), 3);
    // Read sun.security.x509.DistributionPoint for ASN.1 definition
    DistributionPoint dp = new DistributionPoint(gns, bb, gns);
    out = new DerOutputStream();
    dp.encode(out);
    DerValue v = new DerValue(out.toByteArray());
    // skip distributionPoint
    v.data.getDerValue();
    // read reasons
    DerValue v2 = v.data.getDerValue();
    // reset to BitString since it's context-specfic[1] encoded
    v2.resetTag(DerValue.tag_BitString);
    // length should be 5 since only {T,F,T} should be encoded
    check(v2.getUnalignedBitString().length(), 3);
    BitArray ba;
    ba = new BitArray(new boolean[] { false, false, false });
    check(ba.length(), 3);
    ba = ba.truncate();
    check(ba.length(), 1);
    ba = new BitArray(new boolean[] { true, true, true, true, true, true, true, true, false, false });
    check(ba.length(), 10);
    check(ba.toByteArray().length, 2);
    ba = ba.truncate();
    check(ba.length(), 8);
    check(ba.toByteArray().length, 1);
    ba = new BitArray(new boolean[] { true, true, true, true, true, true, true, true, true, false });
    check(ba.length(), 10);
    check(ba.toByteArray().length, 2);
    ba = ba.truncate();
    check(ba.length(), 9);
    check(ba.toByteArray().length, 2);
}