Examples with EncryptedDocumentException org.apache.poi.EncryptedDocumentException used on opensource projects

Example 26 with EncryptedDocumentException

use of org.apache.poi.EncryptedDocumentException in project poi by apache.

the class AgileEncryptor method marshallEncryptionDocument.

protected void marshallEncryptionDocument(EncryptionDocument ed, LittleEndianByteArrayOutputStream os) {
    XmlOptions xo = new XmlOptions();
    xo.setCharacterEncoding("UTF-8");
    Map<String, String> nsMap = new HashMap<String, String>();
    nsMap.put(passwordUri.toString(), "p");
    nsMap.put(certificateUri.toString(), "c");
    xo.setUseDefaultNamespace();
    xo.setSaveSuggestedPrefixes(nsMap);
    xo.setSaveNamespacesFirst();
    xo.setSaveAggressiveNamespaces();
    // setting standalone doesn't work with xmlbeans-2.3 & 2.6
    // ed.documentProperties().setStandalone(true);
    xo.setSaveNoXmlDecl();
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    try {
        bos.write("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\r\n".getBytes("UTF-8"));
        ed.save(bos, xo);
        bos.writeTo(os);
    } catch (IOException e) {
        throw new EncryptedDocumentException("error marshalling encryption info document", e);
    }
}

Example 27 with EncryptedDocumentException

use of org.apache.poi.EncryptedDocumentException in project poi by apache.

the class HSSFWorkbook method encryptBytes.

@SuppressWarnings("resource")
protected void encryptBytes(byte[] buf) {
    int initialOffset = 0;
    FilePassRecord fpr = null;
    for (Record r : workbook.getRecords()) {
        initialOffset += r.getRecordSize();
        if (r instanceof FilePassRecord) {
            fpr = (FilePassRecord) r;
            break;
        }
    }
    if (fpr == null) {
        return;
    }
    // NOSONAR
    LittleEndianByteArrayInputStream plain = new LittleEndianByteArrayInputStream(buf, 0);
    // NOSONAR
    LittleEndianByteArrayOutputStream leos = new LittleEndianByteArrayOutputStream(buf, 0);
    Encryptor enc = fpr.getEncryptionInfo().getEncryptor();
    enc.setChunkSize(Biff8DecryptingStream.RC4_REKEYING_INTERVAL);
    byte[] tmp = new byte[1024];
    try {
        ChunkedCipherOutputStream os = enc.getDataStream(leos, initialOffset);
        int totalBytes = 0;
        while (totalBytes < buf.length) {
            plain.read(tmp, 0, 4);
            final int sid = LittleEndian.getUShort(tmp, 0);
            final int len = LittleEndian.getUShort(tmp, 2);
            boolean isPlain = Biff8DecryptingStream.isNeverEncryptedRecord(sid);
            os.setNextRecordSize(len, isPlain);
            os.writePlain(tmp, 0, 4);
            if (sid == BoundSheetRecord.sid) {
                // special case for the field_1_position_of_BOF (=lbPlyPos) field of
                // the BoundSheet8 record which must be unencrypted
                byte[] bsrBuf = new byte[len];
                plain.readFully(bsrBuf);
                os.writePlain(bsrBuf, 0, 4);
                os.write(bsrBuf, 4, len - 4);
            } else {
                int todo = len;
                while (todo > 0) {
                    int nextLen = Math.min(todo, tmp.length);
                    plain.readFully(tmp, 0, nextLen);
                    if (isPlain) {
                        os.writePlain(tmp, 0, nextLen);
                    } else {
                        os.write(tmp, 0, nextLen);
                    }
                    todo -= nextLen;
                }
            }
            totalBytes += 4 + len;
        }
        os.close();
    } catch (Exception e) {
        throw new EncryptedDocumentException(e);
    }
}

Example 28 with EncryptedDocumentException

use of org.apache.poi.EncryptedDocumentException in project poi by apache.

the class CryptoAPIDecryptor method verifyPassword.

@Override
public boolean verifyPassword(String password) {
    EncryptionVerifier ver = getEncryptionInfo().getVerifier();
    SecretKey skey = generateSecretKey(password, ver);
    try {
        Cipher cipher = initCipherForBlock(null, 0, getEncryptionInfo(), skey, Cipher.DECRYPT_MODE);
        byte[] encryptedVerifier = ver.getEncryptedVerifier();
        byte[] verifier = new byte[encryptedVerifier.length];
        cipher.update(encryptedVerifier, 0, encryptedVerifier.length, verifier);
        setVerifier(verifier);
        byte[] encryptedVerifierHash = ver.getEncryptedVerifierHash();
        byte[] verifierHash = cipher.doFinal(encryptedVerifierHash);
        HashAlgorithm hashAlgo = ver.getHashAlgorithm();
        MessageDigest hashAlg = CryptoFunctions.getMessageDigest(hashAlgo);
        byte[] calcVerifierHash = hashAlg.digest(verifier);
        if (Arrays.equals(calcVerifierHash, verifierHash)) {
            setSecretKey(skey);
            return true;
        }
    } catch (GeneralSecurityException e) {
        throw new EncryptedDocumentException(e);
    }
    return false;
}

Example 29 with EncryptedDocumentException

use of org.apache.poi.EncryptedDocumentException in project poi by apache.

the class CryptoAPIDocumentOutputStream method write.

@Override
public void write(int b) {
    try {
        oneByte[0] = (byte) b;
        cipher.update(oneByte, 0, 1, oneByte, 0);
        super.write(oneByte);
    } catch (Exception e) {
        throw new EncryptedDocumentException(e);
    }
}

Example 30 with EncryptedDocumentException

use of org.apache.poi.EncryptedDocumentException in project poi by apache.

the class CryptoAPIDocumentOutputStream method write.

@Override
public void write(byte[] b, int off, int len) {
    try {
        cipher.update(b, off, len, b, off);
        super.write(b, off, len);
    } catch (Exception e) {
        throw new EncryptedDocumentException(e);
    }
}