org.javasign.operators
Class CMSSignedData

java.lang.Object
  |
  +--org.javasign.operators.CMSSignedData

public class CMSSignedData

extends java.lang.Object

general class for handling a pkcs7-signature message. A simple example of usage - note, in the example below the validity of the certificate isn't verified, just the fact that one of the certs matches the given signer...

  CertStore               certs = s.getCertificatesAndCRLs("Collection", "BC");
  SignerInformationStore  signers = s.getSignerInfos();
  Collection              c = signers.getSigners();
  Iterator                it = c.iterator();
  
  while (it.hasNext())
  {
      SignerInformation   signer = (SignerInformation)it.next();
      Collection          certCollection = certs.getCertificates(signer.getSID());
  
      Iterator        certIt = certCollection.iterator();
      X509Certificate cert = (X509Certificate)certIt.next();
  
      if (signer.verify(cert.getPublicKey()))
      {
          verified++;
      }   
  }
 
  modified by raffa to manage tsr signatures
 
 

Constructor Summary

CMSSignedData(byte[] sigBlock)

CMSSignedData(CMSProcessable signedContent, byte[] sigBlock)

CMSSignedData(CMSProcessable signedContent, java.io.InputStream sigData)
base constructor

CMSSignedData(java.io.File sigBlock)

CMSSignedData(java.io.InputStream sigData)
base constructor - with encapsulated content

Method Summary

java.security.cert.CertStore	getCertificatesAndCRLs(java.lang.String type, java.lang.String provider) return a CertStore containing the certificates and CRLs associated with this message.
byte[]	getEncoded() return the ASN.1 encoded representation of this object.
CMSProcessable	getSignedContent()
java.lang.String	getSignedContentTypeOID() Return the a string representation of the OID associated with the encapsulated content info structure carried in the signed data.
SignerInformationStore	getSignerInfos() return the collection of signers that are associated with the signatures for the message.
static CMSSignedData	replaceCertificatesAndCRLs(CMSSignedData signedData, java.security.cert.CertStore certsAndCrls) Replace the certificate and CRL information associated with this CMSSignedData object with the new one passed in.
static CMSSignedData	replaceSigners(CMSSignedData signedData, SignerInformationStore signerInformationStore) Replace the signerinformation store associated with this CMSSignedData object with the new one passed in.
void	saveEncodedStream(java.io.File out) saves the ASN.1 encoded representation of this object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CMSSignedData

public CMSSignedData(byte[] sigBlock)
              throws CMSException

CMSSignedData

public CMSSignedData(java.io.File sigBlock)
              throws CMSException,
                     java.io.FileNotFoundException

CMSSignedData

public CMSSignedData(CMSProcessable signedContent,
                     byte[] sigBlock)
              throws CMSException

CMSSignedData

public CMSSignedData(CMSProcessable signedContent,
                     java.io.InputStream sigData)
              throws CMSException

base constructor

Parameters:

signedContent - the content that was signed.

sigData - the signature object.

CMSSignedData

public CMSSignedData(java.io.InputStream sigData)
              throws CMSException

base constructor - with encapsulated content

Method Detail

getSignerInfos

public SignerInformationStore getSignerInfos()

return the collection of signers that are associated with the signatures for the message.

getCertificatesAndCRLs

public java.security.cert.CertStore getCertificatesAndCRLs(java.lang.String type,
                                                           java.lang.String provider)
                                                    throws java.security.NoSuchAlgorithmException,
                                                           java.security.NoSuchProviderException,
                                                           CMSException

return a CertStore containing the certificates and CRLs associated with this message.

Throws:

NoProviderException - if the provider requested isn't available.

java.security.NoSuchAlgorithmException - if the cert store isn't available.

java.security.NoSuchProviderException

CMSException

getSignedContentTypeOID

public java.lang.String getSignedContentTypeOID()

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

Returns:

the OID for the content type.

getSignedContent

public CMSProcessable getSignedContent()

getEncoded

public byte[] getEncoded()
                  throws java.io.IOException

return the ASN.1 encoded representation of this object.

java.io.IOException

saveEncodedStream

public void saveEncodedStream(java.io.File out)
                       throws java.io.IOException

saves the ASN.1 encoded representation of this object.

java.io.IOException

replaceSigners

public static CMSSignedData replaceSigners(CMSSignedData signedData,
                                           SignerInformationStore signerInformationStore)

Replace the signerinformation store associated with this CMSSignedData object 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.

Parameters:

signedData - the signed data object to be used as a base.

signerInformationStore - the new signer information store to use.

Returns:

a new signed data object.

replaceCertificatesAndCRLs

public static CMSSignedData replaceCertificatesAndCRLs(CMSSignedData signedData,
                                                       java.security.cert.CertStore certsAndCrls)
                                                throws CMSException

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

Parameters:

signedData - the signed data object to be used as a base.

certsAndCrls - the new certificates and CRLs to be used.

Returns:

a new signed data object.

Throws:

CMSException - if there is an error processing the CertStore