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Oracle Security Developer Tools CMS Java API Reference 10g Release 2 (10.1.2.0.2) B15564-01 |
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java.lang.Object
java.io.InputStream
java.io.FilterInputStream
oracle.security.crypto.cms.CMSInputStream
oracle.security.crypto.cms.CMSEncryptedDataInputStream
A CMSEncryptedDataInputStream
is used to read encrypted-data
CMS objects.
A CMSEncryptedDataInputStream
is essentially a input stream filter that unwraps the CMS encrypted-data
structure from the data read in.
IMPORTANT: This class processes large CMS encrypted-data Objects more efficiently (Java VM memory usage) than the CMSEncryptedDataContentInfo
class.
CMSInputConnector
, CMSEncryptedDataInputConnector
, CMSEncryptedDataContentInfo
Field Summary |
Fields inherited from class java.io.FilterInputStream |
in |
Constructor Summary | |
CMSEncryptedDataInputStream(CMSInputConnector conn, SymmetricKey contentEncryptionKey) Creates a CMSEncryptedDataInputStream . |
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CMSEncryptedDataInputStream(java.io.InputStream in, SymmetricKey contentEncryptionKey) Creates a CMSEncryptedDataInputStream . |
Method Summary | |
int |
available() |
AlgorithmIdentifier |
getContentEncryptionAlgID() Returns the content encryption algorithm. |
ASN1ObjectID |
getEnclosedContentType() Returns the content type of the encrypted content. |
oracle.security.crypto.cert.AttributeSet |
getUnprotectedAttributes() Returns the Unprotected Attributes. |
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() Always returns false</false>. |
int |
read() |
int |
read(byte[] buffer, int offset, int len) |
void |
reset() Not supported. |
long |
skip(long n) |
void |
terminate() Finish reading the encrypted-data structure. |
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 |
public CMSEncryptedDataInputStream(java.io.InputStream in, SymmetricKey contentEncryptionKey)
CMSEncryptedDataInputStream
.in
- The underlying input stream.contentEncryptionKey
- The content encryption key.public CMSEncryptedDataInputStream(CMSInputConnector conn, SymmetricKey contentEncryptionKey)
CMSEncryptedDataInputStream
.conn
- The underlying input connector.contentEncryptionKey
- The content encryption key.Method Detail |
public int read() throws java.io.IOException
java.io.IOException
public int read(byte[] buffer, int offset, int len) throws java.io.IOException
java.io.IOException
public int available() throws java.io.IOException
java.io.IOException
public long skip(long n) throws java.io.IOException
java.io.IOException
public boolean markSupported()
false</false>.
Returns:
false
public void mark(int readlimit)
public void reset() throws java.io.IOException
java.io.IOException
- always(not supported).public void terminate() throws java.io.IOException
encrypted-data
structure.
This method should be invoked only after all the enclosed content has been read from the input stream.
terminate
in class CMSInputStream
java.io.IOException
- If any enclosed content is still present in the input stream or an I/O error occurred.public java.math.BigInteger getVersionNumber() throws java.io.IOException
java.io.IOException
- An I/O error occurred or the input is incorrectly encoded.public ASN1Integer getVersion() throws java.io.IOException
getVersionNumber()
java.io.IOException
- If the input encoding is incorrect or an I/O error occurred.public ASN1ObjectID getEnclosedContentType() throws java.io.IOException
getEnclosedContentType
in class CMSInputStream
java.io.IOException
- If the input encoding is incorrect or an I/O error occurred.public AlgorithmIdentifier getContentEncryptionAlgID() throws java.io.IOException
java.io.IOException
- If the input encoding is incorrect or an I/O error occurred.public oracle.security.crypto.cert.AttributeSet getUnprotectedAttributes() throws java.io.IOException
null
otherwise.java.io.IOException
- If the input encoding is incorrect or an I/O error occurred.
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Oracle Security Developer Tools CMS Java API Reference 10g Release 2 (10.1.2.0.2) B15564-01 |
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