Bouncy Castle PKIX, CMS, EAC, TSP, PKCS, OCSP, CMP, and CRMF APIs 1.77 · org.bouncycastle.cms.CMSSignedDataParser

Parsing class for an CMS Signed Data object from an input stream.

Note

that because we are in a streaming mode only one signer can be tried and it is important that the methods on the parser are called in the appropriate order.

A simple example of usage for an encapsulated signature.

Two notes: first, in the example below the validity of the certificate isn't verified, just the fact that one of the certs matches the given signer, and, second, because we are in a streaming mode the order of the operations is important.

     CMSSignedDataParser     sp = new CMSSignedDataParser(new JcaDigestCalculatorProviderBuilder().setProvider("BC").build(), encapSigData);

     sp.getSignedContent().drain();

     Store                   certStore = sp.getCertificates();
     SignerInformationStore  signers = sp.getSignerInfos();

     Collection              c = signers.getSigners();
     Iterator                it = c.iterator();

     while (it.hasNext())
     {
         SignerInformation   signer = (SignerInformation)it.next();
         Collection          certCollection = certStore.getMatches(signer.getSID());

         Iterator        certIt = certCollection.iterator();
         X509CertificateHolder cert = (X509CertificateHolder)certIt.next();

         System.out.println("verify returns: " + signer.verify(new JcaSimpleSignerInfoVerifierBuilder().setProvider("BC").build(cert)));
     }

Note also: this class does not introduce buffering - if you are processing large files you should create the parser with:

         CMSSignedDataParser     ep = new CMSSignedDataParser(new BufferedInputStream(encapSigData, bufSize));

where bufSize is a suitably large buffer size.

Field Summary

Modifier and Type	Field and Description
private ASN1Set	_certSet
private ASN1Set	_crlSet
private boolean	_isCertCrlParsed
private CMSTypedStream	_signedContent
private ASN1ObjectIdentifier	_signedContentType
private SignedDataParser	_signedData
private SignerInformationStore	_signerInfoStore
private static final DefaultDigestAlgorithmIdentifierFinder	dgstAlgFinder
private Set<AlgorithmIdentifier>	digestAlgorithms
private Map<K, V>	digests
private static final CMSSignedHelper	HELPER

Inherited from org.bouncycastle.cms.CMSContentInfoParser:: _contentInfo _data

Constructor Summary

Access	Constructor and Description
public	CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, byte[] sigBlock)
public	CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, CMSTypedStream signedContent, byte[] sigBlock)
public	CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, InputStream sigData) base constructor - with encapsulated content
public	CMSSignedDataParser(DigestCalculatorProvider for generating accumulating digests digestCalculatorProvider, CMSTypedStream the content that was signed. signedContent, InputStream the signature object stream. sigData) base constructor

Method Summary

Modifier and Type	Method and Description
private static ASN1Set	getASN1Set(ASN1SetParser asn1SetParser)
public Store<T>	Returns: a Store of X509AttributeCertificateHolder objects. getAttributeCertificates() Return any X.509 attribute certificate objects in this SignedData structure as a Store of X509AttributeCertificateHolder objects.
public Store<T>	Returns: a Store of X509CertificateHolder objects. getCertificates() Return any X.509 certificate objects in this SignedData structure as a Store of X509CertificateHolder objects.
public Store<T>	Returns: a Store of X509CRLHolder objects. getCRLs() Return any X.509 CRL objects in this SignedData structure as a Store of X509CRLHolder objects.
public Set<AlgorithmIdentifier>	Returns: the set of digest algorithm identifiers getDigestAlgorithmIDs() Return the digest algorithm identifiers for the SignedData object
public Store<T>	Returns: a Store of ASN1Encodable objects representing any objects of otherRevocationInfoFormat found. getOtherRevocationInfo(ASN1ObjectIdentifier OID of the format type been looked for. otherRevocationInfoFormat) Return any OtherRevocationInfo OtherRevInfo objects of the type indicated by otherRevocationInfoFormat in this SignedData structure.
public CMSTypedStream	getSignedContent()
public String	Returns: the OID for the content type. getSignedContentTypeOID() Return the a string representation of the OID associated with the encapsulated content info structure carried in the signed data.
public SignerInformationStore	getSignerInfos() return the collection of signers that are associated with the signatures for the message.
public int	Returns: the version number getVersion() Return the version number for the SignedData object
private static void	pipeEncapsulatedOctetString(ContentInfoParser encapContentInfo, OutputStream rawOutputStream)
private static void	pipeOctetString(ASN1OctetStringParser octs, OutputStream output)
private void	populateCertCrlSets()
public static OutputStream	Returns: out. replaceCertificatesAndCRLs(InputStream the signed data stream to be used as a base. original, Store<T> new certificates to be used, if any. certs, Store<T> new CRLs to be used, if any. crls, Store<T> new attribute certificates to be used, if any. attrCerts, OutputStream the stream to write the new signed data object to. out) Replace the certificate and CRL information associated with this CMSSignedData object with the new one passed in. The output stream is returned unclosed.
public static OutputStream	Returns: out. replaceSigners(InputStream the signed data stream to be used as a base. original, SignerInformationStore the new signer information store to use. signerInformationStore, OutputStream the stream to write the new signed data object to. out) Replace the signerinformation store associated with the passed in message contained in the stream original with the new one passed in. You would probably only want to do this if you wanted to change the unsigned attributes associated with a signer, or perhaps delete one.
private static void	writeSetToGeneratorTagged(ASN1Generator asn1Gen, ASN1SetParser asn1SetParser, int tagNo)

Inherited from org.bouncycastle.cms.CMSContentInfoParser:: close

Field Detail

_certSet	back to summary
private ASN1Set _certSet

_crlSet	back to summary
private ASN1Set _crlSet

_isCertCrlParsed	back to summary
private boolean _isCertCrlParsed

_signedContent	back to summary
private CMSTypedStream _signedContent

_signedContentType	back to summary
private ASN1ObjectIdentifier _signedContentType

_signedData	back to summary
private SignedDataParser _signedData

_signerInfoStore	back to summary
private SignerInformationStore _signerInfoStore

dgstAlgFinder	back to summary
private static final DefaultDigestAlgorithmIdentifierFinder dgstAlgFinder

digestAlgorithms	back to summary
private Set<AlgorithmIdentifier> digestAlgorithms

digests	back to summary
private Map<K, V> digests

HELPER	back to summary
private static final CMSSignedHelper HELPER

Constructor Detail

CMSSignedDataParser	back to summary
public CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, byte[] sigBlock) throws CMSException

CMSSignedDataParser	back to summary
public CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, CMSTypedStream signedContent, byte[] sigBlock) throws CMSException

CMSSignedDataParser	back to summary
public CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, InputStream sigData) throws CMSException base constructor - with encapsulated content

CMSSignedDataParser	back to summary
public CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, CMSTypedStream signedContent, InputStream sigData) throws CMSException base constructor Parameters digestCalculatorProvider:DigestCalculatorProvider for generating accumulating digests signedContent:CMSTypedStream the content that was signed. sigData:InputStream the signature object stream.

CMSSignedDataParser

back to summary

public CMSSignedDataParser(DigestCalculatorProvider digestCalculatorProvider, CMSTypedStream signedContent, InputStream sigData) throws CMSException

base constructor

Parameters

digestCalculatorProvider:DigestCalculatorProvider: for generating accumulating digests
signedContent:CMSTypedStream: the content that was signed.
sigData:InputStream: the signature object stream.

Method Detail

getASN1Set	back to summary
private static ASN1Set getASN1Set(ASN1SetParser asn1SetParser)

getAttributeCertificates	back to summary
public Store<T> getAttributeCertificates() throws CMSException Return any X.509 attribute certificate objects in this SignedData structure as a Store of X509AttributeCertificateHolder objects. Returns:Store<T> a Store of X509AttributeCertificateHolder objects.

getAttributeCertificates

back to summary

public Store<T> getAttributeCertificates() throws CMSException

Return any X.509 attribute certificate objects in this SignedData structure as a Store of X509AttributeCertificateHolder objects.

Returns:Store<T>: a Store of X509AttributeCertificateHolder objects.

getCertificates	back to summary
public Store<T> getCertificates() throws CMSException Return any X.509 certificate objects in this SignedData structure as a Store of X509CertificateHolder objects. Returns:Store<T> a Store of X509CertificateHolder objects.

getCertificates

back to summary

public Store<T> getCertificates() throws CMSException

Return any X.509 certificate objects in this SignedData structure as a Store of X509CertificateHolder objects.

Returns:Store<T>: a Store of X509CertificateHolder objects.

getCRLs	back to summary
public Store<T> getCRLs() throws CMSException Return any X.509 CRL objects in this SignedData structure as a Store of X509CRLHolder objects. Returns:Store<T> a Store of X509CRLHolder objects.

getCRLs

back to summary

public Store<T> getCRLs() throws CMSException

Return any X.509 CRL objects in this SignedData structure as a Store of X509CRLHolder objects.

Returns:Store<T>: a Store of X509CRLHolder objects.

getDigestAlgorithmIDs	back to summary
public Set<AlgorithmIdentifier> getDigestAlgorithmIDs() Return the digest algorithm identifiers for the SignedData object Returns:Set<AlgorithmIdentifier> the set of digest algorithm identifiers

getDigestAlgorithmIDs

back to summary

public Set<AlgorithmIdentifier> getDigestAlgorithmIDs()

Return the digest algorithm identifiers for the SignedData object

Returns:Set<AlgorithmIdentifier>: the set of digest algorithm identifiers

getOtherRevocationInfo	back to summary
public Store<T> getOtherRevocationInfo(ASN1ObjectIdentifier otherRevocationInfoFormat) throws CMSException Return any OtherRevocationInfo OtherRevInfo objects of the type indicated by otherRevocationInfoFormat in this SignedData structure. Parameters otherRevocationInfoFormat:ASN1ObjectIdentifier OID of the format type been looked for. Returns:Store<T> a Store of ASN1Encodable objects representing any objects of otherRevocationInfoFormat found.

getOtherRevocationInfo

back to summary

public Store<T> getOtherRevocationInfo(ASN1ObjectIdentifier otherRevocationInfoFormat) throws CMSException

Return any OtherRevocationInfo OtherRevInfo objects of the type indicated by otherRevocationInfoFormat in this SignedData structure.

Parameters

otherRevocationInfoFormat:ASN1ObjectIdentifier: OID of the format type been looked for.

Returns:Store<T>

a Store of ASN1Encodable objects representing any objects of otherRevocationInfoFormat found.

getSignedContent	back to summary
public CMSTypedStream getSignedContent()

getSignedContentTypeOID	back to summary
public String getSignedContentTypeOID() Return the a string representation of the OID associated with the encapsulated content info structure carried in the signed data. Returns:String the OID for the content type.

getSignedContentTypeOID

back to summary

public String getSignedContentTypeOID()

Return the a string representation of the OID associated with the encapsulated content info structure carried in the signed data.

Returns:String: the OID for the content type.

getSignerInfos	back to summary
public SignerInformationStore getSignerInfos() throws CMSException return the collection of signers that are associated with the signatures for the message.

getVersion	back to summary
public int getVersion() Return the version number for the SignedData object Returns:int the version number

getVersion

back to summary

public int getVersion()

Return the version number for the SignedData object

Returns:int: the version number

pipeEncapsulatedOctetString	back to summary
private static void pipeEncapsulatedOctetString(ContentInfoParser encapContentInfo, OutputStream rawOutputStream) throws IOException

pipeOctetString	back to summary
private static void pipeOctetString(ASN1OctetStringParser octs, OutputStream output) throws IOException

populateCertCrlSets	back to summary
private void populateCertCrlSets() throws CMSException

replaceCertificatesAndCRLs	back to summary
public static OutputStream replaceCertificatesAndCRLs(InputStream original, Store<T> certs, Store<T> crls, Store<T> attrCerts, OutputStream out) throws CMSException, IOException Replace the certificate and CRL information associated with this CMSSignedData object with the new one passed in. The output stream is returned unclosed. Parameters original:InputStream the signed data stream to be used as a base. certs:Store<T> new certificates to be used, if any. crls:Store<T> new CRLs to be used, if any. attrCerts:Store<T> new attribute certificates to be used, if any. out:OutputStream the stream to write the new signed data object to. Returns:OutputStream out. Exceptions CMSException: if there is an error processing the CertStore

replaceCertificatesAndCRLs

back to summary

public static OutputStream replaceCertificatesAndCRLs(InputStream original, Store<T> certs, Store<T> crls, Store<T> attrCerts, OutputStream out) throws CMSException, IOException

Replace the certificate and CRL information associated with this CMSSignedData object with the new one passed in.

The output stream is returned unclosed.

Parameters

original:InputStream: the signed data stream to be used as a base.
certs:Store<T>: new certificates to be used, if any.
crls:Store<T>: new CRLs to be used, if any.
attrCerts:Store<T>: new attribute certificates to be used, if any.
out:OutputStream: the stream to write the new signed data object to.

Returns:OutputStream

out.

Exceptions

CMSException:: if there is an error processing the CertStore

replaceSigners	back to summary
public static OutputStream replaceSigners(InputStream original, SignerInformationStore signerInformationStore, OutputStream out) throws CMSException, IOException Replace the signerinformation store associated with the passed in message contained in the stream original with the new one passed in. You would probably only want to do this if you wanted to change the unsigned attributes associated with a signer, or perhaps delete one. The output stream is returned unclosed. Parameters original:InputStream the signed data stream to be used as a base. signerInformationStore:SignerInformationStore the new signer information store to use. out:OutputStream the stream to write the new signed data object to. Returns:OutputStream out.

replaceSigners

back to summary

public static OutputStream replaceSigners(InputStream original, SignerInformationStore signerInformationStore, OutputStream out) throws CMSException, IOException

Replace the signerinformation store associated with the passed in message contained in the stream original with the new one passed in. You would probably only want to do this if you wanted to change the unsigned attributes associated with a signer, or perhaps delete one.

The output stream is returned unclosed.

Parameters

original:InputStream: the signed data stream to be used as a base.
signerInformationStore:SignerInformationStore: the new signer information store to use.
out:OutputStream: the stream to write the new signed data object to.

Returns:OutputStream

out.

writeSetToGeneratorTagged	back to summary
private static void writeSetToGeneratorTagged(ASN1Generator asn1Gen, ASN1SetParser asn1SetParser, int tagNo) throws IOException

public Class CMSSignedDataParser

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail