use of org.bouncycastle.asn1.ASN1EncodableVector in project robovm by robovm.
the class CMSSignedDataGenerator method generate.
public CMSSignedData generate(// FIXME Avoid accessing more than once to support CMSProcessableInputStream
CMSTypedData content, boolean encapsulate) throws CMSException {
if (!signerInfs.isEmpty()) {
throw new IllegalStateException("this method can only be used with SignerInfoGenerator");
}
// 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."
// */
// 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();
// clear the current preserved digest state
digests.clear();
//
for (Iterator it = _signers.iterator(); it.hasNext(); ) {
SignerInformation signer = (SignerInformation) it.next();
digestAlgs.add(CMSSignedHelper.INSTANCE.fixAlgID(signer.getDigestAlgorithmID()));
// TODO Verify the content type and calculated digest match the precalculated SignerInfo
signerInfos.add(signer.toASN1Structure());
}
//
// add the SignerInfo objects
//
ASN1ObjectIdentifier contentTypeOID = content.getContentType();
ASN1OctetString octs = null;
if (content != null) {
ByteArrayOutputStream bOut = null;
if (encapsulate) {
bOut = new ByteArrayOutputStream();
}
OutputStream cOut = CMSUtils.attachSignersToOutputStream(signerGens, bOut);
// Just in case it's unencapsulated and there are no signers!
cOut = CMSUtils.getSafeOutputStream(cOut);
try {
content.write(cOut);
cOut.close();
} catch (IOException e) {
throw new CMSException("data processing exception: " + e.getMessage(), e);
}
if (encapsulate) {
octs = new BEROctetString(bOut.toByteArray());
}
}
for (Iterator it = signerGens.iterator(); it.hasNext(); ) {
SignerInfoGenerator sGen = (SignerInfoGenerator) it.next();
SignerInfo inf = sGen.generate(contentTypeOID);
digestAlgs.add(inf.getDigestAlgorithm());
signerInfos.add(inf);
byte[] calcDigest = sGen.getCalculatedDigest();
if (calcDigest != null) {
digests.put(inf.getDigestAlgorithm().getAlgorithm().getId(), calcDigest);
}
}
ASN1Set certificates = null;
if (certs.size() != 0) {
certificates = CMSUtils.createBerSetFromList(certs);
}
ASN1Set certrevlist = null;
if (crls.size() != 0) {
certrevlist = CMSUtils.createBerSetFromList(crls);
}
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);
}
use of org.bouncycastle.asn1.ASN1EncodableVector in project robovm by robovm.
the class SignerInformation method doVerify.
private boolean doVerify(SignerInformationVerifier verifier) throws CMSException {
String encName = CMSSignedHelper.INSTANCE.getEncryptionAlgName(this.getEncryptionAlgOID());
ContentVerifier contentVerifier;
try {
contentVerifier = verifier.getContentVerifier(encryptionAlgorithm, info.getDigestAlgorithm());
} catch (OperatorCreationException e) {
throw new CMSException("can't create content verifier: " + e.getMessage(), e);
}
try {
OutputStream sigOut = contentVerifier.getOutputStream();
if (resultDigest == null) {
DigestCalculator calc = verifier.getDigestCalculator(this.getDigestAlgorithmID());
if (content != null) {
OutputStream digOut = calc.getOutputStream();
if (signedAttributeSet == null) {
if (contentVerifier instanceof RawContentVerifier) {
content.write(digOut);
} else {
OutputStream cOut = new TeeOutputStream(digOut, sigOut);
content.write(cOut);
cOut.close();
}
} else {
content.write(digOut);
sigOut.write(this.getEncodedSignedAttributes());
}
digOut.close();
} else if (signedAttributeSet != null) {
sigOut.write(this.getEncodedSignedAttributes());
} else {
// TODO Get rid of this exception and just treat content==null as empty not missing?
throw new CMSException("data not encapsulated in signature - use detached constructor.");
}
resultDigest = calc.getDigest();
} else {
if (signedAttributeSet == null) {
if (content != null) {
content.write(sigOut);
}
} else {
sigOut.write(this.getEncodedSignedAttributes());
}
}
sigOut.close();
} catch (IOException e) {
throw new CMSException("can't process mime object to create signature.", e);
} catch (OperatorCreationException e) {
throw new CMSException("can't create digest calculator: " + e.getMessage(), e);
}
// RFC 3852 11.1 Check the content-type attribute is correct
{
ASN1Primitive validContentType = getSingleValuedSignedAttribute(CMSAttributes.contentType, "content-type");
if (validContentType == null) {
if (!isCounterSignature && signedAttributeSet != null) {
throw new CMSException("The content-type attribute type MUST be present whenever signed attributes are present in signed-data");
}
} else {
if (isCounterSignature) {
throw new CMSException("[For counter signatures,] the signedAttributes field MUST NOT contain a content-type attribute");
}
if (!(validContentType instanceof ASN1ObjectIdentifier)) {
throw new CMSException("content-type attribute value not of ASN.1 type 'OBJECT IDENTIFIER'");
}
ASN1ObjectIdentifier signedContentType = (ASN1ObjectIdentifier) validContentType;
if (!signedContentType.equals(contentType)) {
throw new CMSException("content-type attribute value does not match eContentType");
}
}
}
// RFC 3852 11.2 Check the message-digest attribute is correct
{
ASN1Primitive validMessageDigest = getSingleValuedSignedAttribute(CMSAttributes.messageDigest, "message-digest");
if (validMessageDigest == null) {
if (signedAttributeSet != null) {
throw new CMSException("the message-digest signed attribute type MUST be present when there are any signed attributes present");
}
} else {
if (!(validMessageDigest instanceof ASN1OctetString)) {
throw new CMSException("message-digest attribute value not of ASN.1 type 'OCTET STRING'");
}
ASN1OctetString signedMessageDigest = (ASN1OctetString) validMessageDigest;
if (!Arrays.constantTimeAreEqual(resultDigest, signedMessageDigest.getOctets())) {
throw new CMSSignerDigestMismatchException("message-digest attribute value does not match calculated value");
}
}
}
// RFC 3852 11.4 Validate countersignature attribute(s)
{
AttributeTable signedAttrTable = this.getSignedAttributes();
if (signedAttrTable != null && signedAttrTable.getAll(CMSAttributes.counterSignature).size() > 0) {
throw new CMSException("A countersignature attribute MUST NOT be a signed attribute");
}
AttributeTable unsignedAttrTable = this.getUnsignedAttributes();
if (unsignedAttrTable != null) {
ASN1EncodableVector csAttrs = unsignedAttrTable.getAll(CMSAttributes.counterSignature);
for (int i = 0; i < csAttrs.size(); ++i) {
Attribute csAttr = (Attribute) csAttrs.get(i);
if (csAttr.getAttrValues().size() < 1) {
throw new CMSException("A countersignature attribute MUST contain at least one AttributeValue");
}
// Note: We don't recursively validate the countersignature value
}
}
}
try {
if (signedAttributeSet == null && resultDigest != null) {
if (contentVerifier instanceof RawContentVerifier) {
RawContentVerifier rawVerifier = (RawContentVerifier) contentVerifier;
if (encName.equals("RSA")) {
DigestInfo digInfo = new DigestInfo(new AlgorithmIdentifier(digestAlgorithm.getAlgorithm(), DERNull.INSTANCE), resultDigest);
return rawVerifier.verify(digInfo.getEncoded(ASN1Encoding.DER), this.getSignature());
}
return rawVerifier.verify(resultDigest, this.getSignature());
}
}
return contentVerifier.verify(this.getSignature());
} catch (IOException e) {
throw new CMSException("can't process mime object to create signature.", e);
}
}
use of org.bouncycastle.asn1.ASN1EncodableVector in project robovm by robovm.
the class SignerInformation method addCounterSigners.
/**
* Return a signer information object with passed in SignerInformationStore representing counter
* signatures attached as an unsigned attribute.
*
* @param signerInformation the signerInfo to be used as the basis.
* @param counterSigners signer info objects carrying counter signature.
* @return a copy of the original SignerInformationObject with the changed attributes.
*/
public static SignerInformation addCounterSigners(SignerInformation signerInformation, SignerInformationStore counterSigners) {
// TODO Perform checks from RFC 3852 11.4
SignerInfo sInfo = signerInformation.info;
AttributeTable unsignedAttr = signerInformation.getUnsignedAttributes();
ASN1EncodableVector v;
if (unsignedAttr != null) {
v = unsignedAttr.toASN1EncodableVector();
} else {
v = new ASN1EncodableVector();
}
ASN1EncodableVector sigs = new ASN1EncodableVector();
for (Iterator it = counterSigners.getSigners().iterator(); it.hasNext(); ) {
sigs.add(((SignerInformation) it.next()).toASN1Structure());
}
v.add(new Attribute(CMSAttributes.counterSignature, new DERSet(sigs)));
return new SignerInformation(new SignerInfo(sInfo.getSID(), sInfo.getDigestAlgorithm(), sInfo.getAuthenticatedAttributes(), sInfo.getDigestEncryptionAlgorithm(), sInfo.getEncryptedDigest(), new DERSet(v)), signerInformation.contentType, signerInformation.content, null);
}
use of org.bouncycastle.asn1.ASN1EncodableVector in project robovm by robovm.
the class CertUtils method generateAttrStructure.
private static AttributeCertificate generateAttrStructure(AttributeCertificateInfo attrInfo, AlgorithmIdentifier sigAlgId, byte[] signature) {
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(attrInfo);
v.add(sigAlgId);
v.add(new DERBitString(signature));
return AttributeCertificate.getInstance(new DERSequence(v));
}
use of org.bouncycastle.asn1.ASN1EncodableVector in project robovm by robovm.
the class CertUtils method generateStructure.
private static Certificate generateStructure(TBSCertificate tbsCert, AlgorithmIdentifier sigAlgId, byte[] signature) {
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(tbsCert);
v.add(sigAlgId);
v.add(new DERBitString(signature));
return Certificate.getInstance(new DERSequence(v));
}
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