kz.gamma.cms
Class CMSEnvelopedDataStreamGenerator

java.lang.Object
  kz.gamma.cms.CMSEnvelopedGenerator
      kz.gamma.cms.CMSEnvelopedDataStreamGenerator

public class CMSEnvelopedDataStreamGenerator
extends CMSEnvelopedGenerator

General class for generating a CMS enveloped-data message stream.

A simple example of usage.

      CMSEnvelopedDataStreamGenerator edGen = new CMSEnvelopedDataStreamGenerator();

      edGen.addKeyTransRecipient(cert);

      ByteArrayOutputStream  bOut = new ByteArrayOutputStream();
      
      OutputStream out = edGen.open(
                              bOut, CMSEnvelopedDataGenerator.AES128_CBC, GammaTechProvider.PROVIDER_NAME);*
      out.write(data);
      
      out.close();
 

Nested Class Summary

private class

CMSEnvelopedDataStreamGenerator.CmsEnvelopedDataOutputStream

Nested classes/interfaces inherited from class kz.gamma.cms.CMSEnvelopedGenerator

CMSEnvelopedGenerator.RecipientInf

Field Summary

private boolean	_berEncodeRecipientSet
private int	_bufferSize
private java.lang.Object	_originatorInfo
private java.lang.Object	_unprotectedAttributes

Fields inherited from class kz.gamma.cms.CMSEnvelopedGenerator

CAMELLIA128_CBC, CAMELLIA128_WRAP, CAMELLIA192_CBC, CAMELLIA192_WRAP, CAMELLIA256_CBC, CAMELLIA256_WRAP, CAST5_CBC, DES_EDE3_CBC, DES_EDE3_WRAP, ECDH_SHA1KDF, IDEA_CBC, rand, RC2_CBC, recipientInfs, SEED_CBC, SEED_WRAP

Constructor Summary

CMSEnvelopedDataStreamGenerator()
base constructor

Method Summary

private DERInteger	getVersion()
java.io.OutputStream	open(java.io.OutputStream out, java.lang.String encryptionOID, int keySize, java.lang.String provider) generate an enveloped object that contains an CMS Enveloped Data object using the given provider.
private java.io.OutputStream	open(java.io.OutputStream out, java.lang.String encryptionOID, javax.crypto.KeyGenerator keyGen, java.lang.String provider) generate an enveloped object that contains an CMS Enveloped Data object using the given provider and the passed in key generator.
protected java.io.OutputStream	open(java.io.OutputStream out, java.lang.String encryptionOID, javax.crypto.SecretKey encKey, java.security.AlgorithmParameters params, ASN1EncodableVector recipientInfos, java.lang.String provider)
java.io.OutputStream	open(java.io.OutputStream out, java.lang.String encryptionOID, java.lang.String provider) generate an enveloped object that contains an CMS Enveloped Data object using the given provider.
void	setBEREncodeRecipients(boolean berEncodeRecipientSet) Use a BER Set to store the recipient information
void	setBufferSize(int bufferSize) Set the underlying string size for encapsulated data

Methods inherited from class kz.gamma.cms.CMSEnvelopedGenerator

addKEKRecipient, addKeyAgreementRecipient, addKeyTransRecipient, addKeyTransRecipient, addPasswordRecipient, generateParameters, getAlgorithmIdentifier

Methods inherited from class java.lang.Object

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

Field Detail

_originatorInfo

private java.lang.Object _originatorInfo

_unprotectedAttributes

private java.lang.Object _unprotectedAttributes

_bufferSize

private int _bufferSize

_berEncodeRecipientSet

private boolean _berEncodeRecipientSet

Constructor Detail

CMSEnvelopedDataStreamGenerator

public CMSEnvelopedDataStreamGenerator()

base constructor

Method Detail

setBufferSize

public void setBufferSize(int bufferSize)

Set the underlying string size for encapsulated data

Parameters:

bufferSize - length of octet strings to buffer the data.

setBEREncodeRecipients

public void setBEREncodeRecipients(boolean berEncodeRecipientSet)

Use a BER Set to store the recipient information

getVersion

private DERInteger getVersion()

open

private java.io.OutputStream open(java.io.OutputStream out,
                                  java.lang.String encryptionOID,
                                  javax.crypto.KeyGenerator keyGen,
                                  java.lang.String provider)
                           throws java.security.NoSuchAlgorithmException,
                                  java.security.NoSuchProviderException,
                                  CMSException

generate an enveloped object that contains an CMS Enveloped Data object using the given provider and the passed in key generator.

Throws:

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.NoSuchProviderException

CMSException

open

protected java.io.OutputStream open(java.io.OutputStream out,
                                    java.lang.String encryptionOID,
                                    javax.crypto.SecretKey encKey,
                                    java.security.AlgorithmParameters params,
                                    ASN1EncodableVector recipientInfos,
                                    java.lang.String provider)
                             throws java.security.NoSuchAlgorithmException,
                                    java.security.NoSuchProviderException,
                                    CMSException

Throws:

java.security.NoSuchAlgorithmException

java.security.NoSuchProviderException

CMSException

open

public java.io.OutputStream open(java.io.OutputStream out,
                                 java.lang.String encryptionOID,
                                 java.lang.String provider)
                          throws java.security.NoSuchAlgorithmException,
                                 java.security.NoSuchProviderException,
                                 CMSException,
                                 java.io.IOException

generate an enveloped object that contains an CMS Enveloped Data object using the given provider.

Throws:

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.NoSuchProviderException

CMSException

open

public java.io.OutputStream open(java.io.OutputStream out,
                                 java.lang.String encryptionOID,
                                 int keySize,
                                 java.lang.String provider)
                          throws java.security.NoSuchAlgorithmException,
                                 java.security.NoSuchProviderException,
                                 CMSException,
                                 java.io.IOException

generate an enveloped object that contains an CMS Enveloped Data object using the given provider.

Throws:

java.io.IOException

java.security.NoSuchAlgorithmException

java.security.NoSuchProviderException

CMSException