Package org.apache.poi

Examples of org.apache.poi.EncryptedDocumentException

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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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            keyData = encList.next().getEncryptedPasswordKey();
            if (keyData == null) {
                throw new NullPointerException("encryptedKey not set");
            }
        } catch (Exception e) {
            throw new EncryptedDocumentException("Unable to parse keyData", e);
        }
       
        int keyBits = (int)keyData.getKeyBits();
       
        CipherAlgorithm ca = CipherAlgorithm.fromXmlId(keyData.getCipherAlgorithm().toString(), keyBits);
        setCipherAlgorithm(ca);

        int hashSize = keyData.getHashSize();

        HashAlgorithm ha = HashAlgorithm.fromEcmaId(keyData.getHashAlgorithm().toString());
        setHashAlgorithm(ha);

        if (getHashAlgorithm().hashSize != hashSize) {
            throw new EncryptedDocumentException("Unsupported hash algorithm: " +
                    keyData.getHashAlgorithm() + " @ " + hashSize + " bytes");
        }

        setSpinCount(keyData.getSpinCount());
        setEncryptedVerifier(keyData.getEncryptedVerifierHashInput());
        setSalt(keyData.getSaltValue());
        setEncryptedKey(keyData.getEncryptedKeyValue());
        setEncryptedVerifierHash(keyData.getEncryptedVerifierHashValue());

        int saltSize = keyData.getSaltSize();
        if (saltSize != getSalt().length)
            throw new EncryptedDocumentException("Invalid salt size");
       
        switch (keyData.getCipherChaining().intValue()) {
            case STCipherChaining.INT_CHAINING_MODE_CBC:
                setChainingMode(ChainingMode.cbc);
                break;
            case STCipherChaining.INT_CHAINING_MODE_CFB:
                setChainingMode(ChainingMode.cfb);
                break;
            default:
                throw new EncryptedDocumentException("Unsupported chaining mode - "+keyData.getCipherChaining().toString());
        }
       
        if (!encList.hasNext()) return;
       
        try {
            CertificateFactory cf = CertificateFactory.getInstance("X.509");
            while (encList.hasNext()) {
                CTCertificateKeyEncryptor certKey = encList.next().getEncryptedCertificateKey();
                AgileCertificateEntry ace = new AgileCertificateEntry();
                ace.certVerifier = certKey.getCertVerifier();
                ace.encryptedKey = certKey.getEncryptedKeyValue();
                ace.x509 = (X509Certificate)cf.generateCertificate(new ByteArrayInputStream(certKey.getX509Certificate()));
                certList.add(ace);
            }
        } catch (GeneralSecurityException e) {
            throw new EncryptedDocumentException("can't parse X509 certificate", e);
        }
    }
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        setSpinCount(100000); // TODO: use parameter
    }
   
    protected void setSalt(byte salt[]) {
        if (salt == null || salt.length != getCipherAlgorithm().blockSize) {
            throw new EncryptedDocumentException("invalid verifier salt");
        }
        super.setSalt(salt);
    }
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        try {
            inputKey = getBlock0(inputKey, getNextBlockSize(inputKey.length, blockSize));
            hashFinal = cipher.doFinal(inputKey);
            return hashFinal;
        } catch (GeneralSecurityException e) {
            throw new EncryptedDocumentException(e);
        }
    }
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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));
                int avail = available();
                if (avail == 0) {
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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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    // 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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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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