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

Example 1 with DirectSignedDataGenerator

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

the class SMIMECryptographerImpl method createSignatureEntity.

protected MimeMultipart createSignatureEntity(byte[] entity, Collection<X509Certificate> signingCertificates) {
    MimeMultipart retVal = null;
    try {
        final MimeBodyPart signedContent = new MimeBodyPart(new ByteArrayInputStream(entity));
        final ASN1EncodableVector signedAttrs = new ASN1EncodableVector();
        final SMIMECapabilityVector caps = new SMIMECapabilityVector();
        caps.addCapability(SMIMECapability.dES_EDE3_CBC);
        caps.addCapability(SMIMECapability.rC2_CBC, 128);
        caps.addCapability(SMIMECapability.dES_CBC);
        caps.addCapability(new DERObjectIdentifier("1.2.840.113549.1.7.1"));
        caps.addCapability(x509CertificateObjectsIdent);
        signedAttrs.add(new SMIMECapabilitiesAttribute(caps));
        final List<X509Certificate> certList = new ArrayList<X509Certificate>();
        final DirectSignedDataGenerator generator = sigFactory.createInstance();
        for (X509Certificate signer : signingCertificates) {
            if (signer instanceof X509CertificateEx) {
                generator.addSigner(((X509CertificateEx) signer).getPrivateKey(), signer, this.m_digestAlgorithm.getOID(), createAttributeTable(signedAttrs), null);
                certList.add(signer);
            }
        }
        final CertStore certsAndcrls = CertStore.getInstance("Collection", new CollectionCertStoreParameters(certList), CryptoExtensions.getJCEProviderNameForTypeAndAlgorithm("CertStore", "Collection"));
        generator.addCertificatesAndCRLs(certsAndcrls);
        final CMSProcessableBodyPart content = new CMSProcessableBodyPart(signedContent);
        final CMSSignedData signedData = generator.generate(content);
        final String header = "signed; protocol=\"application/pkcs7-signature\"; micalg=" + CryptoAlgorithmsHelper.toDigestAlgorithmMicalg(this.m_digestAlgorithm);
        //String encodedSig = Base64.encodeBase64String(signedData.getEncoded());
        final String encodedSig = StringUtils.newStringUtf8(Base64.encodeBase64(signedData.getEncoded(), true));
        retVal = new MimeMultipart(header.toString());
        final MimeBodyPart sig = new MimeBodyPart(new InternetHeaders(), encodedSig.getBytes("ASCII"));
        sig.addHeader("Content-Type", "application/pkcs7-signature; name=smime.p7s; smime-type=signed-data");
        sig.addHeader("Content-Disposition", "attachment; filename=\"smime.p7s\"");
        sig.addHeader("Content-Description", "S/MIME Cryptographic Signature");
        sig.addHeader("Content-Transfer-Encoding", "base64");
        retVal.addBodyPart(signedContent);
        retVal.addBodyPart(sig);
    } catch (MessagingException e) {
        throw new MimeException(MimeError.InvalidMimeEntity, e);
    } catch (IOException e) {
        throw new SignatureException(SignatureError.InvalidMultipartSigned, e);
    } catch (Exception e) {
        throw new NHINDException(MimeError.Unexpected, e);
    }
    return retVal;
}