Package org.bouncycastle.cms

Class CMSDigestedData

java.lang.Object

org.bouncycastle.cms.CMSDigestedData

All Implemented Interfaces:

org.bouncycastle.util.Encodable

public class CMSDigestedData
extends java.lang.Object
implements org.bouncycastle.util.Encodable

containing class for an CMS Digested Data object

     CMSDigestedData cd = new CMSDigestedData(inputStream);


     process(cd.getContent());
 

Constructor Summary

Constructors

Constructor	Description
CMSDigestedData(byte[] compressedData)	Create a CMSDigestedData object from its encoding.
CMSDigestedData(java.io.InputStream compressedData)	Create a CMSDigestedData object from a stream.
CMSDigestedData(org.bouncycastle.asn1.cms.ContentInfo contentInfo)	Create a CMSDigestedData object from an already-parsed ContentInfo.

Method Summary

Modifier and Type	Method	Description
org.bouncycastle.asn1.ASN1ObjectIdentifier	getContentType()
org.bouncycastle.asn1.x509.AlgorithmIdentifier	getDigestAlgorithm()
CMSProcessable	getDigestedContent()	Return the digested content
byte[]	getEncoded()	return the ASN.1 encoded representation of this object.
org.bouncycastle.asn1.cms.ContentInfo	toASN1Structure()	return the ContentInfo
boolean	verify(DigestCalculatorProvider calculatorProvider)

Methods inherited from class java.lang.Object

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

Constructor Detail

CMSDigestedData

public CMSDigestedData(byte[] compressedData)
                throws CMSException

Create a CMSDigestedData object from its encoding.

Parameters:

compressedData - the complete encoding of the DigestedData structure (a CMS ContentInfo). The array must hold the entire encoding and nothing extra - trailing bytes beyond the DigestedData are not permitted.

Throws:

CMSException - if the encoding cannot be parsed as a DigestedData.

CMSDigestedData

public CMSDigestedData(java.io.InputStream compressedData)
                throws CMSException

Create a CMSDigestedData object from a stream.

Parameters:

compressedData - a stream positioned at the start of the DigestedData encoding (a CMS ContentInfo).

Throws:

CMSException - if the encoding cannot be parsed as a DigestedData.

CMSDigestedData

public CMSDigestedData(org.bouncycastle.asn1.cms.ContentInfo contentInfo)
                throws CMSException

Create a CMSDigestedData object from an already-parsed ContentInfo.

Parameters:

contentInfo - the ContentInfo carrying the DigestedData.

Throws:

CMSException - if the ContentInfo does not hold a well-formed DigestedData.

Method Detail

getContentType

public org.bouncycastle.asn1.ASN1ObjectIdentifier getContentType()

getDigestAlgorithm

public org.bouncycastle.asn1.x509.AlgorithmIdentifier getDigestAlgorithm()

getDigestedContent

public CMSProcessable getDigestedContent()
                                  throws CMSException

Return the digested content

Returns:

the digested content

Throws:

CMSException - if there is an exception un-compressing the data.

toASN1Structure

public org.bouncycastle.asn1.cms.ContentInfo toASN1Structure()

return the ContentInfo

getEncoded

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

return the ASN.1 encoded representation of this object.

Specified by:

getEncoded in interface org.bouncycastle.util.Encodable

Throws:

java.io.IOException

verify

public boolean verify(DigestCalculatorProvider calculatorProvider)
               throws CMSException

Throws:

CMSException