Examples with BasicConstraints org.spongycastle.asn1.x509.BasicConstraints used on opensource projects

Example 11 with BasicConstraints

use of org.spongycastle.asn1.x509.BasicConstraints in project felix by apache.

the class CertificateUtil method createSelfSignedCert.

private static X509Certificate createSelfSignedCert(String commonName, KeyPair keypair) throws Exception {
    PublicKey publicKey = keypair.getPublic();
    String keyAlg = DPSigner.getSignatureAlgorithm(publicKey);
    X500Name issuer = new X500Name(commonName);
    BigInteger serial = BigInteger.probablePrime(16, new Random());
    Date notBefore = new Date(System.currentTimeMillis() - 1000);
    Date notAfter = new Date(notBefore.getTime() + 6000);
    SubjectPublicKeyInfo pubKeyInfo;
    try (ASN1InputStream is = new ASN1InputStream(publicKey.getEncoded())) {
        pubKeyInfo = SubjectPublicKeyInfo.getInstance(is.readObject());
    }
    X509v3CertificateBuilder builder = new X509v3CertificateBuilder(issuer, serial, notBefore, notAfter, issuer, pubKeyInfo);
    builder.addExtension(new Extension(Extension.basicConstraints, true, new DEROctetString(new BasicConstraints(false))));
    X509CertificateHolder certHolder = builder.build(new JcaContentSignerBuilder(keyAlg).build(keypair.getPrivate()));
    return new JcaX509CertificateConverter().getCertificate(certHolder);
}

Example 12 with BasicConstraints

use of org.spongycastle.asn1.x509.BasicConstraints in project android by nextcloud.

the class CsrHelper method generateCSR.

/**
 * Create the certificate signing request (CSR) from private and public keys
 *
 * @param keyPair the KeyPair with private and public keys
 * @param userId userId of CSR owner
 * @return PKCS10CertificationRequest with the certificate signing request (CSR) data
 * @throws IOException thrown if key cannot be created
 * @throws OperatorCreationException thrown if contentSigner cannot be build
 */
private static PKCS10CertificationRequest generateCSR(KeyPair keyPair, String userId) throws IOException, OperatorCreationException {
    String principal = "CN=" + userId;
    AsymmetricKeyParameter privateKey = PrivateKeyFactory.createKey(keyPair.getPrivate().getEncoded());
    AlgorithmIdentifier signatureAlgorithm = new DefaultSignatureAlgorithmIdentifierFinder().find("SHA1WITHRSA");
    AlgorithmIdentifier digestAlgorithm = new DefaultDigestAlgorithmIdentifierFinder().find("SHA-1");
    ContentSigner signer = new BcRSAContentSignerBuilder(signatureAlgorithm, digestAlgorithm).build(privateKey);
    PKCS10CertificationRequestBuilder csrBuilder = new JcaPKCS10CertificationRequestBuilder(new X500Name(principal), keyPair.getPublic());
    ExtensionsGenerator extensionsGenerator = new ExtensionsGenerator();
    extensionsGenerator.addExtension(Extension.basicConstraints, true, new BasicConstraints(true));
    csrBuilder.addAttribute(PKCSObjectIdentifiers.pkcs_9_at_extensionRequest, extensionsGenerator.generate());
    return csrBuilder.build(signer);
}

Example 13 with BasicConstraints

use of org.spongycastle.asn1.x509.BasicConstraints in project nifi by apache.

the class CertificateUtils method generateSelfSignedX509Certificate.

/**
 * Generates a self-signed {@link X509Certificate} suitable for use as a Certificate Authority.
 *
 * @param keyPair                 the {@link KeyPair} to generate the {@link X509Certificate} for
 * @param dn                      the distinguished name to user for the {@link X509Certificate}
 * @param signingAlgorithm        the signing algorithm to use for the {@link X509Certificate}
 * @param certificateDurationDays the duration in days for which the {@link X509Certificate} should be valid
 * @return a self-signed {@link X509Certificate} suitable for use as a Certificate Authority
 * @throws CertificateException      if there is an generating the new certificate
 */
public static X509Certificate generateSelfSignedX509Certificate(KeyPair keyPair, String dn, String signingAlgorithm, int certificateDurationDays) throws CertificateException {
    try {
        ContentSigner sigGen = new JcaContentSignerBuilder(signingAlgorithm).setProvider(BouncyCastleProvider.PROVIDER_NAME).build(keyPair.getPrivate());
        SubjectPublicKeyInfo subPubKeyInfo = SubjectPublicKeyInfo.getInstance(keyPair.getPublic().getEncoded());
        Date startDate = new Date();
        Date endDate = new Date(startDate.getTime() + TimeUnit.DAYS.toMillis(certificateDurationDays));
        X509v3CertificateBuilder certBuilder = new X509v3CertificateBuilder(reverseX500Name(new X500Name(dn)), getUniqueSerialNumber(), startDate, endDate, reverseX500Name(new X500Name(dn)), subPubKeyInfo);
        // Set certificate extensions
        // (1) digitalSignature extension
        certBuilder.addExtension(Extension.keyUsage, true, new KeyUsage(KeyUsage.digitalSignature | KeyUsage.keyEncipherment | KeyUsage.dataEncipherment | KeyUsage.keyAgreement | KeyUsage.nonRepudiation | KeyUsage.cRLSign | KeyUsage.keyCertSign));
        certBuilder.addExtension(Extension.basicConstraints, false, new BasicConstraints(true));
        certBuilder.addExtension(Extension.subjectKeyIdentifier, false, new JcaX509ExtensionUtils().createSubjectKeyIdentifier(keyPair.getPublic()));
        certBuilder.addExtension(Extension.authorityKeyIdentifier, false, new JcaX509ExtensionUtils().createAuthorityKeyIdentifier(keyPair.getPublic()));
        // (2) extendedKeyUsage extension
        certBuilder.addExtension(Extension.extendedKeyUsage, false, new ExtendedKeyUsage(new KeyPurposeId[] { KeyPurposeId.id_kp_clientAuth, KeyPurposeId.id_kp_serverAuth }));
        // Sign the certificate
        X509CertificateHolder certificateHolder = certBuilder.build(sigGen);
        return new JcaX509CertificateConverter().setProvider(BouncyCastleProvider.PROVIDER_NAME).getCertificate(certificateHolder);
    } catch (CertIOException | NoSuchAlgorithmException | OperatorCreationException e) {
        throw new CertificateException(e);
    }
}

Example 14 with BasicConstraints

use of org.spongycastle.asn1.x509.BasicConstraints in project nhin-d by DirectProject.

the class CertGenerator method createLeafCertificate.

private static CertCreateFields createLeafCertificate(CertCreateFields fields, KeyPair keyPair) throws Exception {
    StringBuilder dnBuilder = new StringBuilder();
    // create the DN
    if (fields.getAttributes().containsKey("EMAILADDRESS"))
        dnBuilder.append("EMAILADDRESS=").append(fields.getAttributes().get("EMAILADDRESS")).append(", ");
    if (fields.getAttributes().containsKey("CN"))
        dnBuilder.append("CN=").append(fields.getAttributes().get("CN")).append(", ");
    if (fields.getAttributes().containsKey("C"))
        dnBuilder.append("C=").append(fields.getAttributes().get("C")).append(", ");
    if (fields.getAttributes().containsKey("ST"))
        dnBuilder.append("ST=").append(fields.getAttributes().get("ST")).append(", ");
    if (fields.getAttributes().containsKey("L"))
        dnBuilder.append("L=").append(fields.getAttributes().get("L")).append(", ");
    if (fields.getAttributes().containsKey("O"))
        dnBuilder.append("O=").append(fields.getAttributes().get("O")).append(", ");
    String DN = dnBuilder.toString().trim();
    if (DN.endsWith(","))
        ;
    DN = DN.substring(0, DN.length() - 1);
    X509V3CertificateGenerator v1CertGen = new X509V3CertificateGenerator();
    Calendar start = Calendar.getInstance();
    Calendar end = Calendar.getInstance();
    end.add(Calendar.DAY_OF_MONTH, fields.getExpDays());
    // not the best way to do this... generally done with a db file
    v1CertGen.setSerialNumber(BigInteger.valueOf(generatePositiveRandom()));
    // issuer is the parent cert
    v1CertGen.setIssuerDN(fields.getSignerCert().getSubjectX500Principal());
    v1CertGen.setNotBefore(start.getTime());
    v1CertGen.setNotAfter(end.getTime());
    v1CertGen.setSubjectDN(new X509Principal(DN));
    v1CertGen.setPublicKey(keyPair.getPublic());
    v1CertGen.setSignatureAlgorithm("SHA1WithRSAEncryption");
    // pointer to the parent CA
    v1CertGen.addExtension(X509Extensions.AuthorityKeyIdentifier, false, new AuthorityKeyIdentifierStructure(fields.getSignerCert()));
    v1CertGen.addExtension(X509Extensions.SubjectKeyIdentifier, false, new SubjectKeyIdentifierStructure(keyPair.getPublic()));
    v1CertGen.addExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(false));
    // use the CA's private key to sign the certificate
    X509Certificate newCACert = v1CertGen.generate((PrivateKey) fields.getSignerKey(), "BC");
    // validate the certificate 
    newCACert.verify(fields.getSignerCert().getPublicKey());
    // write the certificate the file system
    writeCertAndKey(newCACert, keyPair.getPrivate(), fields);
    return fields;
}

Example 15 with BasicConstraints

use of org.spongycastle.asn1.x509.BasicConstraints in project keystore-explorer by kaikramer.

the class X509Ext method getBasicConstraintsStringValue.

private String getBasicConstraintsStringValue(byte[] value) throws IOException {
    // @formatter:off
    /*
		 * BasicConstraints ::= ASN1Sequence { cA ASN1Boolean DEFAULT FALSE,
		 * pathLenConstraint ASN1Integer (0..MAX) OPTIONAL }
		 */
    // @formatter:on
    /*
		 * Getting the DEFAULT returns a false ASN1Boolean when no value present
		 * which saves the bother of a null check
		 */
    StringBuilder sb = new StringBuilder();
    BasicConstraints basicConstraints = BasicConstraints.getInstance(value);
    boolean ca = basicConstraints.isCA();
    BigInteger pathLenConstraint = basicConstraints.getPathLenConstraint();
    if (ca) {
        sb.append(res.getString("SubjectIsCa"));
        sb.append(NEWLINE);
    } else {
        sb.append(res.getString("SubjectIsNotCa"));
        sb.append(NEWLINE);
    }
    if (pathLenConstraint != null) {
        sb.append(MessageFormat.format(res.getString("PathLengthConstraint"), pathLenConstraint.intValue()));
        sb.append(NEWLINE);
    } else {
        sb.append(res.getString("NoPathLengthConstraint"));
        sb.append(NEWLINE);
    }
    return sb.toString();
}