org.apache.poi.poifs.crypt.agile
Class AgileEncryptor

java.lang.Object
  org.apache.poi.poifs.crypt.Encryptor
      org.apache.poi.poifs.crypt.agile.AgileEncryptor

All Implemented Interfaces:

java.lang.Cloneable

public class AgileEncryptor
extends Encryptor
implements java.lang.Cloneable

AgileEncryptor

protected AgileEncryptor()

confirmPassword

public void confirmPassword(java.lang.String password)

Specified by:

confirmPassword in class Encryptor

confirmPassword

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

Specified by:

confirmPassword in class Encryptor

getDataStream

public java.io.OutputStream getDataStream(DirectoryNode dir)
                                   throws java.io.IOException,
                                          java.security.GeneralSecurityException

Description copied from class: Encryptor

Return a output stream for encrypted data.

Specified by:

getDataStream in class Encryptor

Parameters:

dir - the node to write to

Returns:

encrypted stream

Throws:

java.io.IOException

java.security.GeneralSecurityException

updateIntegrityHMAC

protected void updateIntegrityHMAC(java.io.File tmpFile,
                                   int oleStreamSize)
                            throws java.security.GeneralSecurityException,
                                   java.io.IOException

Generate an HMAC, as specified in [RFC2104], of the encrypted form of the data (message), which the DataIntegrity element will verify by using the Salt generated in step 2 as the key. Note that the entire EncryptedPackage stream (1), including the StreamSize field, MUST be used as the message. Encrypt the HMAC as in step 3 by using a blockKey byte array consisting of the following bytes: 0xa0, 0x67, 0x7f, 0x02, 0xb2, 0x2c, 0x84, and 0x33.

Throws:

java.security.GeneralSecurityException

java.io.IOException

createEncryptionDocument

protected com.microsoft.schemas.office.x2006.encryption.EncryptionDocument createEncryptionDocument()

marshallEncryptionDocument

protected void marshallEncryptionDocument(com.microsoft.schemas.office.x2006.encryption.EncryptionDocument ed,
                                          LittleEndianByteArrayOutputStream os)

createEncryptionInfoEntry

protected void createEncryptionInfoEntry(DirectoryNode dir,
                                         java.io.File tmpFile)
                                  throws java.io.IOException,
                                         java.security.GeneralSecurityException

Throws:

java.io.IOException

java.security.GeneralSecurityException

clone

public AgileEncryptor clone()
                     throws java.lang.CloneNotSupportedException

Overrides:

clone in class Encryptor

Throws:

java.lang.CloneNotSupportedException