Package org.apache.poi

Examples of org.apache.poi.EncryptedDocumentException

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        }
        if (hashAlgorithm == null) {
            hashAlgorithm = HashAlgorithm.sha1;
        }
        if (hashAlgorithm != HashAlgorithm.sha1) {
            throw new EncryptedDocumentException("Standard encryption only supports SHA-1.");
        }
        if (chainingMode == null) {
            chainingMode = ChainingMode.ecb;
        }
        if (chainingMode != ChainingMode.ecb) {
            throw new EncryptedDocumentException("Standard encryption only supports ECB chaining.");
        }
        if (keyBits == -1) {
            keyBits = cipherAlgorithm.defaultKeySize;
        }
        if (blockSize == -1) {
            blockSize = cipherAlgorithm.blockSize;
        }
        boolean found = false;
        for (int ks : cipherAlgorithm.allowedKeySize) {
            found |= (ks == keyBits);
        }
        if (!found) {
            throw new EncryptedDocumentException("KeySize "+keyBits+" not allowed for Cipher "+cipherAlgorithm.toString());
        }
        header = new StandardEncryptionHeader(cipherAlgorithm, hashAlgorithm, keyBits, blockSize, chainingMode);
        verifier = new StandardEncryptionVerifier(cipherAlgorithm, hashAlgorithm, keyBits, blockSize, chainingMode);
        decryptor = new StandardDecryptor(info);
        encryptor = new StandardEncryptor(this);
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        EncryptionInfoBuilder eib;
        try {
            eib = getBuilder(encryptionMode);
        } catch (Exception e) {
            throw new EncryptedDocumentException(e);
        }
       
        eib.initialize(this, cipherAlgorithm, hashAlgorithm, keyBits, blockSize, chainingMode);
       
        header = eib.getHeader();
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            byte encryptedVerifierHash[] = cipher.doFinal(truncateOrPad(calcVerifierHash, encVerHashSize));
   
            ver.setEncryptedVerifier(encryptedVerifier);
            ver.setEncryptedVerifierHash(encryptedVerifierHash);
        } catch (GeneralSecurityException e) {
            throw new EncryptedDocumentException("Password confirmation failed", e);
        }
       
    }
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                fis.close();
                fileOut.delete();

                leos.close();
            } catch (IOException e) {
                throw new EncryptedDocumentException(e);
            }
        }
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        offset = FibBase.getSize();
        assert offset == 32;

        if ( _fibBase.isFEncrypted() )
        {
            throw new EncryptedDocumentException(
                    "Cannot process encrypted word file" );
        }

        _csw = LittleEndian.getUShort( mainDocument, offset );
        offset += LittleEndian.SHORT_SIZE;
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      if (fpr.getRc4KeyData() != null) {
          Rc4KeyData rc4 = fpr.getRc4KeyData();
          Biff8RC4Key rc4key = Biff8RC4Key.create(userPassword, rc4.getSalt());
          key = rc4key;
          if (!rc4key.validate(rc4.getEncryptedVerifier(), rc4.getEncryptedVerifierHash())) {
                  throw new EncryptedDocumentException(
                        (Decryptor.DEFAULT_PASSWORD.equals(userPassword) ? "Default" : "Supplied")
                        + " password is invalid for salt/verifier/verifierHash");
          }
      } else if (fpr.getXorKeyData() != null) {
          XorKeyData xor = fpr.getXorKeyData();
          Biff8XORKey xorKey = Biff8XORKey.create(userPassword, xor.getKey());
          key = xorKey;
         
          if (!xorKey.validate(userPassword, xor.getVerifier())) {
                    throw new EncryptedDocumentException(
                    (Decryptor.DEFAULT_PASSWORD.equals(userPassword) ? "Default" : "Supplied")
                    + " password is invalid for key/verifier");
          }
      } else {
          throw new EncryptedDocumentException("Crypto API not yet supported.");
      }

      return new RecordInputStream(original, key, _initialRecordsSize);
    }
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            case sha512:
                providerType = STCryptProv.RSA_AES;
                sid = 14;
                break;
            default:
                throw new EncryptedDocumentException
                ("Hash algorithm '"+hashAlgo+"' is not supported for document write protection.");
            }

       
            SecureRandom random = new SecureRandom();
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        if (cipherAlgorithm == null) {
            cipherAlgorithm = CipherAlgorithm.aes128;
        }
        if (cipherAlgorithm == CipherAlgorithm.rc4) {
            throw new EncryptedDocumentException("RC4 must not be used with agile encryption.");
        }
        if (hashAlgorithm == null) {
            hashAlgorithm = HashAlgorithm.sha1;
        }
        if (chainingMode == null) {
            chainingMode = ChainingMode.cbc;
        }
        if (!(chainingMode == ChainingMode.cbc || chainingMode == ChainingMode.cfb)) {
            throw new EncryptedDocumentException("Agile encryption only supports CBC/CFB chaining.");
        }
        if (keyBits == -1) {
            keyBits = cipherAlgorithm.defaultKeySize;
        }
        if (blockSize == -1) {
            blockSize = cipherAlgorithm.blockSize;
        }
        boolean found = false;
        for (int ks : cipherAlgorithm.allowedKeySize) {
            found |= (ks == keyBits);
        }
        if (!found) {
            throw new EncryptedDocumentException("KeySize "+keyBits+" not allowed for Cipher "+cipherAlgorithm.toString());
        }
        header = new AgileEncryptionHeader(cipherAlgorithm, hashAlgorithm, keyBits, blockSize, chainingMode);
        verifier = new AgileEncryptionVerifier(cipherAlgorithm, hashAlgorithm, keyBits, blockSize, chainingMode);
        decryptor = new AgileDecryptor(this);
        encryptor = new AgileEncryptor(this);
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    protected static EncryptionDocument parseDescriptor(String descriptor) {
        try {
            return EncryptionDocument.Factory.parse(descriptor);
        } catch (XmlException e) {
            throw new EncryptedDocumentException("Unable to parse encryption descriptor", e);
        }
    }
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    protected static EncryptionDocument parseDescriptor(InputStream descriptor) {
        try {
            return EncryptionDocument.Factory.parse(descriptor);
        } catch (Exception e) {
            throw new EncryptedDocumentException("Unable to parse encryption descriptor", 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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