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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.OutputStream
java.io.FilterOutputStream
oracle.security.crypto.cms.CMSOutputStream
oracle.security.crypto.cms.CMSEncryptedDataOutputStream
A CMSEncryptedDataOutputStream
writes its output in the form of a CMS encrypted-data
structure, encrypting the data in the process.
Specifically, the effect of using this class is as if the following process took place:
encrypted-data
.except that the actual process is done in one pass, eliminating the necessity to accumulate all of the input data before writing any output.
In the case where a <ocde>CMSConnector is provided instead of a CMSOutputStream
, only the exposed content i.e. the Content field of the ContentInfo structure minus the explicit [0] tag is written to the underlying output stream.
IMPORTANT: This class generates large CMS encrypted-data Objects more efficiently (Java VM memory usage) than the CMSEncryptedDataContentInfo
class.
CMSOutputStream
, CMSEncryptedDataContentInfo
, CMSEncryptedDataOutputConnector
Field Summary |
Fields inherited from class java.io.FilterOutputStream |
out |
Constructor Summary | |
CMSEncryptedDataOutputStream(CMSOutputConnector conn, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType) Creates a CMSEncryptedDataOutputStream . |
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CMSEncryptedDataOutputStream(CMSOutputConnector conn, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes) Creates a CMSEncryptedDataOutputStream . |
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CMSEncryptedDataOutputStream(CMSOutputConnector conn, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes, boolean writeEncryptedOutput) Creates a CMSEncryptedDataOutputStream . |
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CMSEncryptedDataOutputStream(java.io.OutputStream out, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType) Creates a CMSEncryptedDataOutputStream . |
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CMSEncryptedDataOutputStream(java.io.OutputStream out, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes) Creates a CMSEncryptedDataOutputStream . |
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CMSEncryptedDataOutputStream(java.io.OutputStream out, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes, boolean writeEncryptedOutput) Creates a CMSEncryptedDataOutputStream . |
Method Summary | |
void |
close() |
ASN1ObjectID |
getExposedContentType() Returns the content type of the data that is output to the underlying output stream. |
void |
terminate() Finish writing the encrypted-data structure to the underlying output stream. |
void |
write(byte[] b, int offset, int len) |
void |
write(int ch) |
Methods inherited from class java.io.FilterOutputStream |
flush, write |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public CMSEncryptedDataOutputStream(java.io.OutputStream out, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType) throws AlgorithmIdentifierException, InvalidKeyException
CMSEncryptedDataOutputStream
.out
- The underlying output stream.contentEncryptionKey
- The content encryption key.contentEncryptionAlgID
- The content encryption algorithm.enclosedContentType
- The content type of the enclosed content.AlgorithmIdentifierException
- The encryption algorithm is not supported.InvalidKeyException
- The encryption key is invalid.public CMSEncryptedDataOutputStream(java.io.OutputStream out, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes) throws AlgorithmIdentifierException, InvalidKeyException
CMSEncryptedDataOutputStream
.out
- The underlying output stream.contentEncryptionKey
- The content encryption key.contentEncryptionAlgID
- The content encryption algorithm.enclosedContentType
- The content type of the enclosed content.unprotectedAttributes
- The set of unprotected attributes.AlgorithmIdentifierException
- The encryption algorithm is not supported.InvalidKeyException
- The encryption key is invalid.public CMSEncryptedDataOutputStream(java.io.OutputStream out, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes, boolean writeEncryptedOutput) throws AlgorithmIdentifierException, InvalidKeyException
CMSEncryptedDataOutputStream
.out
- The underlying output stream.contentEncryptionKey
- The content encryption key.contentEncryptionAlgID
- The content encryption algorithm.enclosedContentType
- The content type of the enclosed content.unprotectedAttributes
- The set of unprotected attributes.writeEncryptedOutput
- If true
the encryptedContent will be written to the output stream; false
otherwise.AlgorithmIdentifierException
- The encryption algorithm is not supported.InvalidKeyException
- The encryption key is invalid.public CMSEncryptedDataOutputStream(CMSOutputConnector conn, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType) throws AlgorithmIdentifierException, InvalidKeyException
CMSEncryptedDataOutputStream
.conn
- The underlying output connector.contentEncryptionKey
- The content encryption key.contentEncryptionAlgID
- The content encryption algorithm.enclosedContentType
- The content type of the enclosed content.AlgorithmIdentifierException
- The encryption algorithm is not supported.InvalidKeyException
- The encryption key is invalid.public CMSEncryptedDataOutputStream(CMSOutputConnector conn, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes) throws AlgorithmIdentifierException, InvalidKeyException
CMSEncryptedDataOutputStream
.conn
- The underlying output connector.contentEncryptionKey
- The content encryption key.contentEncryptionAlgID
- The content encryption algorithm.enclosedContentType
- The content type of the enclosed content.unprotectedAttributes
- The set of unprotected attributes.AlgorithmIdentifierException
- The encryption algorithm is not supported.InvalidKeyException
- The encryption key is invalid.public CMSEncryptedDataOutputStream(CMSOutputConnector conn, SymmetricKey contentEncryptionKey, AlgorithmIdentifier contentEncryptionAlgID, ASN1ObjectID enclosedContentType, oracle.security.crypto.cert.AttributeSet unprotectedAttributes, boolean writeEncryptedOutput) throws AlgorithmIdentifierException, InvalidKeyException
CMSEncryptedDataOutputStream
.conn
- The underlying output connector.contentEncryptionKey
- The content encryption key.contentEncryptionAlgID
- The content encryption algorithm.enclosedContentType
- The content type of the enclosed content.unprotectedAttributes
- The set of unprotected attributes.writeEncryptedOutput
- If true
the encryptedContent will be written to the output stream; false
otherwise.AlgorithmIdentifierException
- The encryption algorithm is not supported.InvalidKeyException
- The encryption key is invalid.Method Detail |
public void terminate() throws java.io.IOException
encrypted-data
structure to the underlying output stream.
Must be called only after all the enclosed data has been written to this output stream.
terminate
in class CMSOutputStream
java.io.IOException
- An I/O error occurred.public void write(int ch) throws java.io.IOException
java.io.IOException
public void write(byte[] b, int offset, int len) throws java.io.IOException
java.io.IOException
public void close() throws java.io.IOException
java.io.IOException
public ASN1ObjectID getExposedContentType()
getExposedContentType
in class CMSOutputStream
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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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