kz.gamma.cms
Class CMSEnvelopedData

java.lang.Object
  kz.gamma.cms.CMSEnvelopedData

public class CMSEnvelopedData
extends java.lang.Object

containing class for an CMS Enveloped Data object

Field Summary

private AlgorithmIdentifier	_encAlg
(package private) ContentInfo	contentInfo
private AlgorithmIdentifier	encAlg
(package private) RecipientInformationStore	recipientInfoStore
private ASN1Set	unprotectedAttributes

Constructor Summary

CMSEnvelopedData(byte[] envelopedData)

CMSEnvelopedData(ContentInfo contentInfo)

CMSEnvelopedData(java.io.InputStream envelopedData)

Method Summary

private byte[]	encodeObj(DEREncodable obj)
byte[]	getEncoded() return the ASN.1 encoded representation of this object.
java.lang.String	getEncryptionAlgOID() return the object identifier for the content encryption algorithm.
java.security.AlgorithmParameters	getEncryptionAlgorithmParameters(java.lang.String provider) Return an AlgorithmParameters object giving the encryption parameters used to encrypt the message content.
byte[]	getEncryptionAlgParams() return the ASN.1 encoded encryption algorithm parameters, or null if there aren't any.
RecipientInformationStore	getRecipientInfos() return a store of the intended recipients for this message
AttributeTable	getUnprotectedAttributes() return a table of the unprotected attributes indexed by the OID of the attribute.

Methods inherited from class java.lang.Object

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

Field Detail

recipientInfoStore

RecipientInformationStore recipientInfoStore

contentInfo

ContentInfo contentInfo

encAlg

private AlgorithmIdentifier encAlg

unprotectedAttributes

private ASN1Set unprotectedAttributes

_encAlg

private AlgorithmIdentifier _encAlg

Constructor Detail

CMSEnvelopedData

public CMSEnvelopedData(byte[] envelopedData)
                 throws CMSException

Throws:

CMSException

CMSEnvelopedData

public CMSEnvelopedData(java.io.InputStream envelopedData)
                 throws CMSException

Throws:

CMSException

CMSEnvelopedData

public CMSEnvelopedData(ContentInfo contentInfo)
                 throws CMSException

Throws:

CMSException

Method Detail

encodeObj

private byte[] encodeObj(DEREncodable obj)
                  throws java.io.IOException

Throws:

java.io.IOException

getEncryptionAlgOID

public java.lang.String getEncryptionAlgOID()

return the object identifier for the content encryption algorithm.

Returns:

OID алгоритма

getEncryptionAlgParams

public byte[] getEncryptionAlgParams()

return the ASN.1 encoded encryption algorithm parameters, or null if there aren't any.

Returns:

Параметры алгоритма

getEncryptionAlgorithmParameters

public java.security.AlgorithmParameters getEncryptionAlgorithmParameters(java.lang.String provider)
                                                                   throws CMSException,
                                                                          java.security.NoSuchProviderException

Return an AlgorithmParameters object giving the encryption parameters used to encrypt the message content.

Parameters:

provider - the provider to generate the parameters for.

Returns:

the parameters object, null if there is not one.

Throws:

CMSException - if the algorithm cannot be found, or the parameters can't be parsed.

java.security.NoSuchProviderException - if the provider cannot be found.

getRecipientInfos

public RecipientInformationStore getRecipientInfos()

return a store of the intended recipients for this message

getUnprotectedAttributes

public AttributeTable getUnprotectedAttributes()

return a table of the unprotected attributes indexed by the OID of the attribute.

getEncoded

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

return the ASN.1 encoded representation of this object.

Throws:

java.io.IOException