Example usage for org.bouncycastle.cms CMSUtils createBerSetFromList

Introduction

In this page you can find the example usage for org.bouncycastle.cms CMSUtils createBerSetFromList.

Prototype

static ASN1Set createBerSetFromList(List derObjects) 

Source Link

Usage

From source file:org.votingsystem.signature.util.PDFContentSigner.java

License:Open Source License

public CMSSignedData getCMSSignedData(String eContentType, CMSProcessable content, boolean encapsulate,
        Provider sigProvider, boolean addDefaultAttributes, List<SignerInfo> signerInfoList)
        throws NoSuchAlgorithmException, CMSException, Exception {
    // TODO if (signerInfs.isEmpty()){
    //            /* RFC 3852 5.2
    //             * "In the degenerate case where there are no signers, the
    //             * EncapsulatedContentInfo value being "signed" is irrelevant.  In this
    //             * case, the content type within the EncapsulatedContentInfo value being
    //             * "signed" MUST be id-data (as defined in section 4), and the content
    //             * field of the EncapsulatedContentInfo value MUST be omitted."
    //             *//*from  ww  w .ja va 2 s . c o  m*/
    //            if (encapsulate) {
    //                throw new IllegalArgumentException("no signers, encapsulate must be false");
    //            } if (!DATA.equals(eContentType)) {
    //                throw new IllegalArgumentException("no signers, eContentType must be id-data");
    //            }
    //        }
    //        if (!DATA.equals(eContentType)) {
    //            /* RFC 3852 5.3
    //             * [The 'signedAttrs']...
    //             * field is optional, but it MUST be present if the content type of
    //             * the EncapsulatedContentInfo value being signed is not id-data.
    //             */
    //            // TODO signedAttrs must be present for all signers
    //        }
    ASN1EncodableVector digestAlgs = new ASN1EncodableVector();
    ASN1EncodableVector signerInfos = new ASN1EncodableVector();
    digests.clear(); // clear the current preserved digest state
    Iterator it = _signers.iterator();
    while (it.hasNext()) {
        SignerInformation signer = (SignerInformation) it.next();
        digestAlgs.add(CMSUtils.fixAlgID(signer.getDigestAlgorithmID()));
        signerInfos.add(signer.toSignerInfo());
    }
    boolean isCounterSignature = (eContentType == null);
    ASN1ObjectIdentifier contentTypeOID = isCounterSignature ? CMSObjectIdentifiers.data
            : new ASN1ObjectIdentifier(eContentType);
    for (SignerInfo signerInfo : signerInfoList) {
        digestAlgs.add(signerInfo.getDigestAlgorithm());
        signerInfos.add(signerInfo);
    }
    ASN1Set certificates = null;
    if (!certs.isEmpty())
        certificates = CMSUtils.createBerSetFromList(certs);
    ASN1Set certrevlist = null;
    if (!crls.isEmpty())
        certrevlist = CMSUtils.createBerSetFromList(crls);
    ASN1OctetString octs = null;
    if (encapsulate && content != null) {
        ByteArrayOutputStream bOut = new ByteArrayOutputStream();
        content.write(bOut);
        octs = new BERConstructedOctetString(bOut.toByteArray());
    }
    ContentInfo encInfo = new ContentInfo(contentTypeOID, octs);
    SignedData sd = new SignedData(new DERSet(digestAlgs), encInfo, certificates, certrevlist,
            new DERSet(signerInfos));
    ContentInfo contentInfo = new ContentInfo(CMSObjectIdentifiers.signedData, sd);
    return new CMSSignedData(content, contentInfo);
}

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