Package org.spongycastle.cms

Class CMSEnvelopedDataStreamGenerator

java.lang.Object

org.spongycastle.cms.CMSEnvelopedGenerator

org.spongycastle.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.addRecipientInfoGenerator(new JceKeyTransRecipientInfoGenerator(recipientCert).setProvider("SC"));

      ByteArrayOutputStream  bOut = new ByteArrayOutputStream();

      OutputStream out = edGen.open(
                              bOut, new JceCMSContentEncryptorBuilder(CMSAlgorithm.DES_EDE3_CBC)
                                              .setProvider("SC").build());
      out.write(data);

      out.close();
 

Field Summary

Fields inherited from class org.spongycastle.cms.CMSEnvelopedGenerator

AES128_CBC, AES128_WRAP, AES192_CBC, AES192_WRAP, AES256_CBC, AES256_WRAP, CAMELLIA128_CBC, CAMELLIA128_WRAP, CAMELLIA192_CBC, CAMELLIA192_WRAP, CAMELLIA256_CBC, CAMELLIA256_WRAP, CAST5_CBC, DES_EDE3_CBC, DES_EDE3_WRAP, ECDH_SHA1KDF, ECMQV_SHA1KDF, ECMQV_SHA224KDF, ECMQV_SHA256KDF, ECMQV_SHA384KDF, ECMQV_SHA512KDF, IDEA_CBC, originatorInfo, RC2_CBC, SEED_CBC, SEED_WRAP, unprotectedAttributeGenerator

Constructor Summary

Constructors

Constructor	Description
CMSEnvelopedDataStreamGenerator()	base constructor

Method Summary

Modifier and Type	Method	Description
protected OutputStream	open(OutputStream out, org.spongycastle.asn1.ASN1EncodableVector recipientInfos, OutputEncryptor encryptor)
OutputStream	open(OutputStream out, OutputEncryptor encryptor)	generate an enveloped object that contains an CMS Enveloped Data object using the given encryptor.
protected OutputStream	open(org.spongycastle.asn1.ASN1ObjectIdentifier dataType, OutputStream out, org.spongycastle.asn1.ASN1EncodableVector recipientInfos, OutputEncryptor encryptor)
OutputStream	open(org.spongycastle.asn1.ASN1ObjectIdentifier dataType, OutputStream out, OutputEncryptor encryptor)	generate an enveloped object that contains an CMS Enveloped Data object using the given encryptor and marking the data as being of the passed in type.
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 org.spongycastle.cms.CMSEnvelopedGenerator

addRecipientInfoGenerator, setOriginatorInfo, setUnprotectedAttributeGenerator

Methods inherited from class java.lang.Object

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

Constructor Details

CMSEnvelopedDataStreamGenerator

public CMSEnvelopedDataStreamGenerator()

base constructor

Method Details

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

open

protected OutputStream open(org.spongycastle.asn1.ASN1ObjectIdentifier dataType,
 OutputStream out,
 org.spongycastle.asn1.ASN1EncodableVector recipientInfos,
 OutputEncryptor encryptor)
                     throws IOException

Throws:

IOException

open

protected OutputStream open(OutputStream out,
 org.spongycastle.asn1.ASN1EncodableVector recipientInfos,
 OutputEncryptor encryptor)
                     throws CMSException

Throws:

CMSException

open

public OutputStream open(OutputStream out,
 OutputEncryptor encryptor)
                  throws CMSException,
IOException

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

Throws:

CMSException

IOException

open

public OutputStream open(org.spongycastle.asn1.ASN1ObjectIdentifier dataType,
 OutputStream out,
 OutputEncryptor encryptor)
                  throws CMSException,
IOException

generate an enveloped object that contains an CMS Enveloped Data object using the given encryptor and marking the data as being of the passed in type.

Throws:

CMSException

IOException