org.bouncycastle.mail.smime

Class SMIMESignedParser

java.lang.Object

org.bouncycastle.cms.CMSContentInfoParser

org.bouncycastle.cms.CMSSignedDataParser

org.bouncycastle.mail.smime.SMIMESignedParser

public class SMIMESignedParser
extends CMSSignedDataParser

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.getCertificates("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++;
      }   
  }
 

Note: if you are using this class with AS2 or some other protocol that does not use 7bit as the default content transfer encoding you will need to use the constructor that allows you to specify the default content transfer encoding, such as "binary".

Field Summary

Fields inherited from class org.bouncycastle.cms.CMSContentInfoParser

_contentInfo, _data

Constructor Summary

Constructors

Constructor and Description
SMIMESignedParser(javax.mail.internet.MimeMultipart message) base constructor using a defaultContentTransferEncoding of 7bit.
SMIMESignedParser(javax.mail.internet.MimeMultipart message, File backingFile) base constructor using a defaultContentTransferEncoding of 7bit and a specified backing file.
SMIMESignedParser(javax.mail.internet.MimeMultipart message, String defaultContentTransferEncoding) base constructor with settable contentTransferEncoding.
SMIMESignedParser(javax.mail.internet.MimeMultipart message, String defaultContentTransferEncoding, File backingFile) base constructor with settable contentTransferEncoding and a specified backing file.
SMIMESignedParser(javax.mail.Part message) base constructor for a signed message with encapsulated content.
SMIMESignedParser(javax.mail.Part message, File file) Constructor for a signed message with encapsulated content.

Method Summary

Methods

Modifier and Type	Method and Description
javax.mail.internet.MimeBodyPart	getContent() return the content that was signed.
javax.mail.internet.MimeMessage	getContentAsMimeMessage(javax.mail.Session session) Return the content that was signed as a mime message.
Object	getContentWithSignature() return the content that was signed with its signature attached.

Methods inherited from class org.bouncycastle.cms.CMSSignedDataParser

getAttributeCertificates, getAttributeCertificates, getAttributeCertificates, getCertificates, getCertificates, getCertificates, getCertificatesAndCRLs, getCertificatesAndCRLs, getCRLs, getCRLs, getCRLs, getSignedContent, getSignedContentTypeOID, getSignerInfos, getVersion, replaceCertificatesAndCRLs, replaceCertificatesAndCRLs, replaceSigners

Methods inherited from class org.bouncycastle.cms.CMSContentInfoParser

close

Methods inherited from class java.lang.Object

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

Constructor Detail

SMIMESignedParser

public SMIMESignedParser(javax.mail.internet.MimeMultipart message)
                  throws javax.mail.MessagingException,
                         CMSException

base constructor using a defaultContentTransferEncoding of 7bit. A temporary backing file will be created for the signed data.

Parameters:

message - signed message with signature.

Throws:

javax.mail.MessagingException - on an error extracting the signature or otherwise processing the message.

CMSException - if some other problem occurs.

SMIMESignedParser

public SMIMESignedParser(javax.mail.internet.MimeMultipart message,
                 File backingFile)
                  throws javax.mail.MessagingException,
                         CMSException

base constructor using a defaultContentTransferEncoding of 7bit and a specified backing file.

Parameters:

message - signed message with signature.

backingFile - the temporary file to use to back the signed data.

Throws:

javax.mail.MessagingException - on an error extracting the signature or otherwise processing the message.

CMSException - if some other problem occurs.

SMIMESignedParser

public SMIMESignedParser(javax.mail.internet.MimeMultipart message,
                 String defaultContentTransferEncoding)
                  throws javax.mail.MessagingException,
                         CMSException

base constructor with settable contentTransferEncoding. A temporary backing file will be created to contain the signed data.

Parameters:

message - the signed message with signature.

defaultContentTransferEncoding - new default to use.

Throws:

javax.mail.MessagingException - on an error extracting the signature or otherwise processing the message.

CMSException - if some other problem occurs.

SMIMESignedParser

public SMIMESignedParser(javax.mail.internet.MimeMultipart message,
                 String defaultContentTransferEncoding,
                 File backingFile)
                  throws javax.mail.MessagingException,
                         CMSException

base constructor with settable contentTransferEncoding and a specified backing file.

Parameters:

message - the signed message with signature.

defaultContentTransferEncoding - new default to use.

backingFile - the temporary file to use to back the signed data.

Throws:

javax.mail.MessagingException - on an error extracting the signature or otherwise processing the message.

CMSException - if some other problem occurs.

SMIMESignedParser

public SMIMESignedParser(javax.mail.Part message)
                  throws javax.mail.MessagingException,
                         CMSException,
                         SMIMEException

base constructor for a signed message with encapsulated content.

Note: in this case the encapsulated MimeBody part will only be suitable for a single writeTo - once writeTo has been called the file containing the body part will be deleted. If writeTo is not called the file will be left in the temp directory.

Parameters:

message - the message containing the encapsulated signed data.

Throws:

javax.mail.MessagingException - on an error extracting the signature or otherwise processing the message.

SMIMEException - if the body part encapsulated in the message cannot be extracted.

CMSException - if some other problem occurs.

SMIMESignedParser

public SMIMESignedParser(javax.mail.Part message,
                 File file)
                  throws javax.mail.MessagingException,
                         CMSException,
                         SMIMEException

Constructor for a signed message with encapsulated content. The encapsulated content, if it exists, is written to the file represented by the File object passed in.

Parameters:

message - the Part containing the signed content.

file - the file the encapsulated part is to be written to after it has been decoded.

Throws:

javax.mail.MessagingException - on an error extracting the signature or otherwise processing the message.

SMIMEException - if the body part encapsulated in the message cannot be extracted.

CMSException - if some other problem occurs.

Method Detail

getContent

public javax.mail.internet.MimeBodyPart getContent()

return the content that was signed.

Returns:

the signed body part in this message.

getContentAsMimeMessage

public javax.mail.internet.MimeMessage getContentAsMimeMessage(javax.mail.Session session)
                                                        throws javax.mail.MessagingException,
                                                               IOException

Return the content that was signed as a mime message.

Parameters:

session - the session to base the MimeMessage around.

Returns:

a MimeMessage holding the content.

Throws:

javax.mail.MessagingException - if there is an issue creating the MimeMessage.

IOException - if there is an issue reading the content.

getContentWithSignature

public Object getContentWithSignature()

return the content that was signed with its signature attached.

Returns:

depending on whether this was unencapsulated or not it will return a MimeMultipart or a MimeBodyPart