Package org.apache.poi.poifs.crypt

Implementation of the ECMA-376 and MS-propritary document encryptions

See: Description

Interface Summary

Interface	Description
EncryptionInfoBuilder

Class Summary

Class	Description
ChunkedCipherInputStream
ChunkedCipherOutputStream
CryptoFunctions	Helper functions used for standard and agile encryption
DataSpaceMapUtils
DataSpaceMapUtils.DataSpaceDefinition
DataSpaceMapUtils.DataSpaceMap
DataSpaceMapUtils.DataSpaceMapEntry
DataSpaceMapUtils.DataSpaceVersionInfo
DataSpaceMapUtils.IRMDSTransformInfo
DataSpaceMapUtils.TransformInfoHeader
Decryptor
EncryptionHeader	Reads and processes OOXML Encryption Headers The constants are largely based on ZIP constants.
EncryptionInfo	This class may require poi-ooxml to be on the classpath to load some EncryptionModes.
EncryptionVerifier	Used when checking if a key is valid for a document
Encryptor

Enum Summary

Enum	Description
ChainingMode
CipherAlgorithm
CipherProvider
EncryptionMode	Office supports various encryption modes.
HashAlgorithm

Package org.apache.poi.poifs.crypt Description

Implementation of the ECMA-376 and MS-propritary document encryptions

The implementation is split into the following packages:

• This package contains common functions for both current implemented cipher modes.
• the agile package is part of the poi ooxml jar and the provides agile encryption support.
• the binaryrc package is used for the fixed length RC4 encryption of biff/H**F formats
• the cryptoapi package is used for the variable length RC encryption of biff/H**F formats
• the standard package contains classes for the standard encryption ...
• the xor package contains classes for the xor obfuscation of biff/H**F formats

See Also:

Apache POI - Encryption support, ECMA-376 Document Encryption