com.healthmarketscience.jackcess.impl.office
Class NonStandardEncryptionProvider

java.lang.Object
  com.healthmarketscience.jackcess.impl.BaseCryptCodecHandler
      com.healthmarketscience.jackcess.impl.OfficeCryptCodecHandler
          com.healthmarketscience.jackcess.impl.office.BlockCipherProvider
              com.healthmarketscience.jackcess.impl.office.ECMAStandardEncryptionProvider
                  com.healthmarketscience.jackcess.impl.office.NonStandardEncryptionProvider

All Implemented Interfaces:

com.healthmarketscience.jackcess.impl.CodecHandler

public class NonStandardEncryptionProvider
extends ECMAStandardEncryptionProvider

The "non-standard" provider handles the case where AES is enabled for older databases with the office crypto "compatmode" set to 0 (non-compatible). More details here

Author:

James Ahlborn

Nested Class Summary

Nested classes/interfaces inherited from class com.healthmarketscience.jackcess.impl.OfficeCryptCodecHandler

OfficeCryptCodecHandler.Phase

Field Summary

Fields inherited from class com.healthmarketscience.jackcess.impl.BaseCryptCodecHandler

CIPHER_DECRYPT_MODE, CIPHER_ENCRYPT_MODE

Constructor Summary

NonStandardEncryptionProvider(com.healthmarketscience.jackcess.impl.PageChannel channel, byte[] encodingKey, ByteBuffer encProvBuf, byte[] pwdBytes)

Method Summary

Methods inherited from class com.healthmarketscience.jackcess.impl.office.ECMAStandardEncryptionProvider

computeCipherParams, initCipher, initDigest, verifyPassword

Methods inherited from class com.healthmarketscience.jackcess.impl.office.BlockCipherProvider

canDecodeInline, canEncodePartialPage, decodePageImpl, encodePageImpl, getBlockCipher, initCryptCipher, initPwdCipher, reset

Methods inherited from class com.healthmarketscience.jackcess.impl.OfficeCryptCodecHandler

bits2bytes, create, decodePage, encodePage, getDigest, getPhase, initCryptDigest, initPwdDigest, int2bytes, iterateHash

Methods inherited from class com.healthmarketscience.jackcess.impl.BaseCryptCodecHandler

applyPageNumber, blockDecrypt, blockDecryptBytes, blockEncrypt, decryptBytes, decryptBytes, decryptInit, decryptInit, encryptInit, encryptInit, fill, fixToLength, fixToLength, getCipherParams, getEncodingKey, getEncodingKey, getStreamCipher, getTempBuffer, hash, hash, hash, hash, isBlankKey, processBytesFully, readHeaderPage, streamDecrypt, streamEncrypt, toString, wrap

Methods inherited from class java.lang.Object

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

Constructor Detail

NonStandardEncryptionProvider

public NonStandardEncryptionProvider(com.healthmarketscience.jackcess.impl.PageChannel channel,
                                     byte[] encodingKey,
                                     ByteBuffer encProvBuf,
                                     byte[] pwdBytes)
                              throws IOException

Throws:

IOException