Package org.apache.poi

Examples of org.apache.poi.EncryptedDocumentException

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        if (major == 4 && minor == 4)
            return new AgileDecryptor(info);
        else if (minor == 2 && (major == 3 || major == 4))
            return new EcmaDecryptor(info);
        else
            throw new EncryptedDocumentException("Unsupported version");
    }
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        switch (algorithm) {
        case EncryptionHeader.ALGORITHM_AES_128: return 16;
        case EncryptionHeader.ALGORITHM_AES_192: return 24;
        case EncryptionHeader.ALGORITHM_AES_256: return 32;
        }
        throw new EncryptedDocumentException("Unknown block size");
    }
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        MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
        byte[] bytes;
        try {
            bytes = password.getBytes("UTF-16LE");
        } catch (UnsupportedEncodingException e) {
            throw new EncryptedDocumentException("UTF16 not supported");
        }

        sha1.update(info.getVerifier().getSalt());
        byte[] hash = sha1.digest(bytes);
        byte[] iterator = new byte[4];
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            while (len > 0) {
                if (_chunk == null) {
                    try {
                        _chunk = nextChunk();
                    } catch (GeneralSecurityException e) {
                        throw new EncryptedDocumentException(e.getMessage());
                    }
                }
                int count = (int)(4096L - (_pos & 0xfff));
                count = Math.min(available(), Math.min(count, len));
                System.arraycopy(_chunk, (int)(_pos & 0xfff), b, off, count);
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    // Create our FIB, and check for the doc being encrypted
    _fib = new FileInformationBlock(_mainStream);
    _cpSplit = new CPSplitCalculator(_fib);
    if(_fib.isFEncrypted()) {
      throw new EncryptedDocumentException("Cannot process encrypted word files!");
    }

    // use the fib to determine the name of the table stream.
    String name = "0Table";
    if (_fib.isFWhichTblStm())
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        key = Biff8EncryptionKey.create(fpr.getDocId());
      } else {
        key = Biff8EncryptionKey.create(userPassword, fpr.getDocId());
      }
      if (!key.validate(fpr.getSaltData(), fpr.getSaltHash())) {
        throw new EncryptedDocumentException(
            (userPassword == null ? "Default" : "Supplied")
            + " password is invalid for docId/saltData/saltHash");
      }
      return new RecordInputStream(original, key, _initialRecordsSize);
    }
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                hashAlg.update(first);
                hashAlg.update(second);
                hashAlg.digest(hash, 0, hash.length); // don't create hash buffer everytime new
            }
        } catch (DigestException e) {
            throw new EncryptedDocumentException("error in password hashing");
        }
       
        return hash;
    }   
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        if (padding == null) padding = "NoPadding";
       
        try {
            // Ensure the JCE policies files allow for this sized key
            if (Cipher.getMaxAllowedKeyLength(cipherAlgorithm.jceId) < keySizeInBytes*8) {
                throw new EncryptedDocumentException("Export Restrictions in place - please install JCE Unlimited Strength Jurisdiction Policy files");
            }

            Cipher cipher;
            if (cipherAlgorithm == CipherAlgorithm.rc4) {
                cipher = Cipher.getInstance(cipherAlgorithm.jceId);
            } else if (cipherAlgorithm.needsBouncyCastle) {
                registerBouncyCastle();
                cipher = Cipher.getInstance(cipherAlgorithm.jceId + "/" + chain.jceId + "/" + padding, "BC");
            } else {
                cipher = Cipher.getInstance(cipherAlgorithm.jceId + "/" + chain.jceId + "/" + padding);
            }
           
            if (vec == null) {
                cipher.init(cipherMode, key);
            } else {
                AlgorithmParameterSpec aps;
                if (cipherAlgorithm == CipherAlgorithm.rc2) {
                    aps = new RC2ParameterSpec(key.getEncoded().length*8, vec);
                } else {
                    aps = new IvParameterSpec(vec);
                }
                cipher.init(cipherMode, key, aps);
            }
            return cipher;
        } catch (GeneralSecurityException e) {
            throw new EncryptedDocumentException(e);
        }
    }   
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                return MessageDigest.getInstance(hashAlgorithm.jceId, "BC");
            } else {
                return MessageDigest.getInstance(hashAlgorithm.jceId);
            }
        } catch (GeneralSecurityException e) {
            throw new EncryptedDocumentException("hash algo not supported", e);
        }
    }
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                return Mac.getInstance(hashAlgorithm.jceHmacId, "BC");
            } else {
                return Mac.getInstance(hashAlgorithm.jceHmacId);
            }
        } catch (GeneralSecurityException e) {
            throw new EncryptedDocumentException("hmac algo not supported", e);
        }
    }
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Related Classes of org.apache.poi.EncryptedDocumentException

  • org.apache.poi.hssf.record.crypto.Biff8DecryptingStream
  • org.apache.poi.hssf.record.crypto.Biff8EncryptionKey
  • org.apache.poi.hssf.record.crypto.Biff8RC4
  • org.apache.poi.hssf.record.crypto.Biff8RC4Key
  • org.apache.poi.hssf.record.FilePassRecord
  • org.apache.poi.hssf.record.FilePassRecord$Rc4KeyData
  • org.apache.poi.hssf.record.RecordFactoryInputStream$StreamEncryptionInfo
  • org.apache.poi.hssf.usermodel.HSSFWorkbook
  • org.apache.poi.hwpf.HWPFDocument
  • org.apache.poi.hwpf.HWPFDocumentCore
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