Examples with DirectRecipientInformation org.nhindirect.stagent.cryptography.activekeyops.DirectRecipientInformation used on opensource projects

Example 1 with DirectRecipientInformation

use of org.nhindirect.stagent.cryptography.activekeyops.DirectRecipientInformation in project nhin-d by DirectProject.

the class SMIMECryptographerImpl method decrypt.

/**
     * Decrypts an entity with the provided certificates' private key.
     * @param encryptedEntity The entity that will be decrypted.
     * @param decryptingCertificate The certificates whose private keys will be used to decrypt the message.
     * @return A MimeEntity containing the decrypted part.
     */
public MimeEntity decrypt(MimeEntity encryptedEntity, Collection<X509CertificateEx> decryptingCertificates) {
    if (decryptingCertificates == null || decryptingCertificates.size() == 0) {
        throw new IllegalArgumentException();
    }
    MimeEntity retEntity = null;
    try {
        if (LOGGER.isDebugEnabled()) {
            final byte[] encryptedContent = encryptedEntity.getContentAsBytes();
            writePreDecrypt(encryptedContent);
        }
        final SMIMEEnveloped m = new SMIMEEnveloped(encryptedEntity);
        if (!this.isAllowedEncryptionAlgorithm(m.getEncryptionAlgOID()))
            throw new NHINDException(MimeError.DisallowedEncryptionAlgorithm, "The encryption algorithm " + m.getEncryptionAlgOID() + " is not allowed");
        for (X509CertificateEx decryptCert : decryptingCertificates) {
            final RecipientId recId = generateRecipientSelector(decryptCert);
            final RecipientInformationStore recipients = m.getRecipientInfos();
            final DirectRecipientInformation recipient = decFactory.createInstance(recipients.get(recId), m);
            if (recipient == null)
                continue;
            final byte[] decryptedPayload = recipient.getDecryptedContent(decryptCert.getPrivateKey());
            if (LOGGER.isDebugEnabled()) {
                writePostDecrypt(decryptedPayload);
            }
            final ByteArrayInputStream inStream = new ByteArrayInputStream(decryptedPayload);
            retEntity = new MimeEntity(inStream);
            break;
        }
    } catch (MessagingException e) {
        throw new MimeException(MimeError.InvalidMimeEntity, e);
    } catch (Exception e) {
        throw new MimeException(MimeError.Unexpected, e);
    }
    if (retEntity == null) {
        throw new NHINDException(MimeError.Unexpected, "None of the the provided decryption certs were found in message's RecipientsInfo set.");
    }
    return retEntity;
}

Example 2 with DirectRecipientInformation

use of org.nhindirect.stagent.cryptography.activekeyops.DirectRecipientInformation in project nhin-d by DirectProject.

the class MessagaeDecryptor method main.

public static void main(String[] args) {
    try {
        final KeyStore store = KeyStore.getInstance("pkcs12");
        store.load(FileUtils.openInputStream(new File("/users/gm2552/Desktop/ops.p12")), "".toCharArray());
        final String alias = store.aliases().nextElement();
        final PrivateKey entry = (PrivateKey) store.getKey(alias, "".toCharArray());
        final X509Certificate cert = (X509Certificate) store.getCertificate(alias);
        /*
			for (String arg :args)
			{
				if (arg )
			}
			*/
        //String encryptedStuff = FileUtils.readFileToString(new File("users/gm2552/Desktop/cry.eml"));
        InputStream inStream = FileUtils.openInputStream(new File("/users/gm2552/Desktop/cry2.eml"));
        MimeBodyPart part = new MimeBodyPart(inStream);
        final SMIMEEnveloped m = new SMIMEEnveloped(part);
        RecipientId recId = new RecipientId();
        recId.setIssuer(cert.getIssuerX500Principal().getEncoded());
        recId.setSerialNumber(cert.getSerialNumber());
        final RecipientInformationStore recipients = m.getRecipientInfos();
        final DirectRecipientInformation recipient = new SplitDirectRecipientInformationFactory().createInstance(recipients.get(recId), m);
        final byte[] decryptedPayload = recipient.getDecryptedContent(entry);
        System.out.println("Alg OID: " + m.getEncryptionAlgOID());
    } catch (Exception e) {
        e.printStackTrace();
    }
}