Package org.apache.poi.poifs.crypt.standard

Class StandardEncryptor

java.lang.Object

org.apache.poi.poifs.crypt.Encryptor

org.apache.poi.poifs.crypt.standard.StandardEncryptor

All Implemented Interfaces:

GenericRecord

public class StandardEncryptor
extends Encryptor

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	StandardEncryptor.StandardCipherOutputStream

Field Summary

Fields inherited from class org.apache.poi.poifs.crypt.Encryptor

DEFAULT_POIFS_ENTRY

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	StandardEncryptor()
protected	StandardEncryptor(StandardEncryptor other)

Method Summary

Modifier and Type	Method	Description
void	confirmPassword(String password)
void	confirmPassword(String password, byte[] keySpec, byte[] keySalt, byte[] verifier, byte[] verifierSalt, byte[] integritySalt)	Fills the fields of verifier and header with the calculated hashes based on the password and a random salt see [MS-OFFCRYPTO] - 2.3.4.7 ECMA-376 Document Encryption Key Generation
StandardEncryptor	copy()
protected void	createEncryptionInfoEntry(DirectoryNode dir)
OutputStream	getDataStream(DirectoryNode dir)	Return an output stream for encrypted data.
protected int	getKeySizeInBytes()

Methods inherited from class org.apache.poi.poifs.crypt.Encryptor

getDataStream, getDataStream, getEncryptionInfo, getGenericProperties, getInstance, getSecretKey, setChunkSize, setEncryptionInfo, setSecretKey

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.poi.common.usermodel.GenericRecord

getGenericChildren, getGenericRecordType

Constructor Detail

StandardEncryptor

protected StandardEncryptor()

StandardEncryptor

protected StandardEncryptor(StandardEncryptor other)

Method Detail

confirmPassword

public void confirmPassword(String password)

Specified by:

confirmPassword in class Encryptor

confirmPassword

public void confirmPassword(String password,
                            byte[] keySpec,
                            byte[] keySalt,
                            byte[] verifier,
                            byte[] verifierSalt,
                            byte[] integritySalt)

Fills the fields of verifier and header with the calculated hashes based on the password and a random salt see [MS-OFFCRYPTO] - 2.3.4.7 ECMA-376 Document Encryption Key Generation

Specified by:

confirmPassword in class Encryptor

getDataStream

public OutputStream getDataStream(DirectoryNode dir)
                           throws IOException,
                                  GeneralSecurityException

Description copied from class: Encryptor

Return an output stream for encrypted data.

Specified by:

getDataStream in class Encryptor

Parameters:

dir - the node to write to

Returns:

encrypted stream

Throws:

IOException

GeneralSecurityException

getKeySizeInBytes

protected int getKeySizeInBytes()

createEncryptionInfoEntry

protected void createEncryptionInfoEntry(DirectoryNode dir)
                                  throws IOException

Throws:

IOException

copy

public StandardEncryptor copy()

Specified by:

copy in class Encryptor