oracle.security.crypto.cms
Class CMSSignedDataInputStream

java.lang.Object
java.io.InputStream
java.io.FilterInputStream
oracle.security.crypto.cms.CMSInputStream
oracle.security.crypto.cms.CMSSignedDataInputStream

public class CMSSignedDataInputStream

extends CMSInputStream

A CMSSignedDataInputStream is used to read signed-data CMS objects.

A CMSSignedDataInputStream is essentially a input stream filter that unwraps the CMS signed-data structure from the data read in.

You will be able to read a detached signed-data object using the CMSSignedDataInputStream class but you will not be able to verify the signature.

IMPORTANT: This class processes large CMS signed-data Objects more efficiently (Java VM memory usage) than the CMSSignedDataContentInfo class.

See Also:

CMSInputConnector, CMSSignedDataInputConnector, CMSSignedDataContentInfo

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

CMSSignedDataInputStream(CMSInputConnector conn)
Creates a CMSSignedDataInputStream.

CMSSignedDataInputStream(java.io.InputStream in)
Creates a CMSSignedDataInputStream.

Method Summary

int	available()
java.util.Vector	getCertificates() Returns the list of certificates included with this signed data object.
java.util.Vector	getCRLs() Returns the list of CRLs included with this signed data object.
java.util.Enumeration	getDigestAlgIDs() Returns the list of Digest Algorithms.
oracle.security.crypto.asn1.ASN1ObjectID	getEnclosedContentType() Returns the content type of the signed content.
CMSSignerInfo	getSignerInfo(oracle.security.crypto.cert.X509 signerCert) Return the SignerInfo corresponding to the signer certificate.
oracle.security.crypto.asn1.ASN1Integer	getVersion() Deprecated. As of Phaos CMS 2.0.1, replaced by getVersionNumber()
java.math.BigInteger	getVersionNumber() Returns the version number of this CMS Object.
void	mark(int readlimit) Not supported.
boolean	markSupported() Not Supported.
int	read()
int	read(byte[] buffer, int offset, int len)
void	reset() Not supported.
java.util.Enumeration	signers() Returns the enumeration of message signers.
long	skip(long n) Not supported.
void	terminate() Ensures that the CMS Object in the input stream has been completely read.
void	verifySignature(oracle.security.crypto.cert.X509 signerCert) Verify the Signature.

Methods inherited from class java.io.FilterInputStream

close, read

Methods inherited from class java.lang.Object

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

Constructor Detail

CMSSignedDataInputStream

public CMSSignedDataInputStream(java.io.InputStream in)

Creates a CMSSignedDataInputStream.

Parameters:

in - The underlying input stream.

CMSSignedDataInputStream

public CMSSignedDataInputStream(CMSInputConnector conn)

Creates a CMSSignedDataInputStream.

Parameters:

conn - The underlying input connector.

Method Detail

getEnclosedContentType

public oracle.security.crypto.asn1.ASN1ObjectID getEnclosedContentType()
                                                                throws java.io.IOException

Returns the content type of the signed content.

Specified by:

getEnclosedContentType in class CMSInputStream

Returns:

The content type identifier.

Throws:

java.io.IOException - If the encoding is incorrect or an I/O error occurs.

signers

public java.util.Enumeration signers()
                              throws java.io.IOException

Returns the enumeration of message signers.

Returns:

The enumeration containing CMSSignerInfo objects.

Throws:

java.io.IOException - An I/O error occurred or the input is incorrectly encoded.

getCertificates

public java.util.Vector getCertificates()
                                 throws java.io.IOException

Returns the list of certificates included with this signed data object.

Returns:

Vector containing X509 objects or null if no list of certificates is present.

Throws:

java.io.IOException - An I/O error occurred or the input is incorrectly encoded.

getCRLs

public java.util.Vector getCRLs()
                         throws java.io.IOException

Returns the list of CRLs included with this signed data object.

Returns:

Vector containing CRL objects or null if no list of CRLs is present.

Throws:

java.io.IOException - An I/O error occurred or the input is incorrectly encoded.

getSignerInfo

public CMSSignerInfo getSignerInfo(oracle.security.crypto.cert.X509 signerCert)
                            throws UnknownSignerException

Return the SignerInfo corresponding to the signer certificate.

Parameters:

signerCert - The signer certificate.

Returns:

CMSSignerInfo object.

Throws:

UnknownSignerException - No SignerInfo matching the specified certificate.

verifySignature

public void verifySignature(oracle.security.crypto.cert.X509 signerCert)
                     throws oracle.security.crypto.core.AuthenticationException,
                            UnknownSignerException

Verify the Signature.

Parameters:

signerCert - The signing certificate.

Throws:

oracle.security.crypto.core.AuthenticationException - Signature is not valid.

UnknownSignerException - Could not find the matching SignerInfo.

read

public int read()
         throws java.io.IOException

Throws:

java.io.IOException

read

public int read(byte[] buffer,
                int offset,
                int len)
         throws java.io.IOException

Throws:

java.io.IOException

available

public int available()
              throws java.io.IOException

Throws:

java.io.IOException

skip

public long skip(long n)
          throws java.io.IOException

Not supported. Always throws an IOException.

Throws:

java.io.IOException

markSupported

public boolean markSupported()

Not Supported.

Returns:

false.

mark

public void mark(int readlimit)

Not supported.

reset

public void reset()
           throws java.io.IOException

Not supported.

Throws:

java.io.IOException - always (not supported).

terminate

public void terminate()
               throws java.io.IOException

Description copied from class: CMSInputStream

Ensures that the CMS Object in the input stream has been completely read.

Must be called after all the content enclosed by the CMS Object has been read.

Specified by:

terminate in class CMSInputStream

Throws:

java.io.IOException - An I/O error occurred or the input encoding is incorrect.

getVersionNumber

public java.math.BigInteger getVersionNumber()
                                      throws java.io.IOException

Returns the version number of this CMS Object.

Returns:

The version number.

Throws:

java.io.IOException - An I/O error occurred or the input is incorrectly encoded.

getVersion

public oracle.security.crypto.asn1.ASN1Integer getVersion()
                                                   throws java.io.IOException

Deprecated. As of Phaos CMS 2.0.1, replaced by getVersionNumber()

Returns the version number of this CMS Object.

Returns:

The version number.

Throws:

java.io.IOException - An I/O error occurred or the input encoding is incorrect.

getDigestAlgIDs

public java.util.Enumeration getDigestAlgIDs()
                                      throws java.io.IOException

Returns the list of Digest Algorithms.

Returns:

An enumeration of digest algorithm identifiers.

Throws:

java.io.IOException - An I/O error occurred or the input encoding is incorrect.