Examples with EncryptionInfo org.apache.poi.poifs.crypt.EncryptionInfo used on opensource projects

Example 11 with EncryptionInfo

use of org.apache.poi.poifs.crypt.EncryptionInfo in project poi by apache.

the class AgileEncryptor method createEncryptionInfoEntry.

protected void createEncryptionInfoEntry(DirectoryNode dir, File tmpFile) throws IOException, GeneralSecurityException {
    DataSpaceMapUtils.addDefaultDataSpace(dir);
    final EncryptionInfo info = getEncryptionInfo();
    EncryptionRecord er = new EncryptionRecord() {

        @Override
        public void write(LittleEndianByteArrayOutputStream bos) {
            // EncryptionVersionInfo (4 bytes): A Version structure (section 2.1.4), where 
            // Version.vMajor MUST be 0x0004 and Version.vMinor MUST be 0x0004
            bos.writeShort(info.getVersionMajor());
            bos.writeShort(info.getVersionMinor());
            // Reserved (4 bytes): A value that MUST be 0x00000040
            bos.writeInt(info.getEncryptionFlags());
            EncryptionDocument ed = createEncryptionDocument();
            marshallEncryptionDocument(ed, bos);
        }
    };
    createEncryptionEntry(dir, "EncryptionInfo", er);
}

Example 12 with EncryptionInfo

use of org.apache.poi.poifs.crypt.EncryptionInfo in project poi by apache.

the class HSLFSlideShowEncrypted method decryptInit.

protected void decryptInit() {
    if (dec != null) {
        return;
    }
    EncryptionInfo ei = dea.getEncryptionInfo();
    dec = (CryptoAPIDecryptor) ei.getDecryptor();
}

Example 13 with EncryptionInfo

use of org.apache.poi.poifs.crypt.EncryptionInfo in project poi by apache.

the class HSLFSlideShowEncrypted method updateEncryptionRecord.

protected Record[] updateEncryptionRecord(Record[] records) {
    String password = Biff8EncryptionKey.getCurrentUserPassword();
    if (password == null) {
        if (dea == null) {
            // no password given, no encryption record exits -> done
            return records;
        } else {
            // need to remove password data
            dea = null;
            return removeEncryptionRecord(records);
        }
    } else {
        // create password record
        if (dea == null) {
            dea = new DocumentEncryptionAtom();
            enc = null;
        }
        encryptInit();
        EncryptionInfo ei = dea.getEncryptionInfo();
        byte[] salt = ei.getVerifier().getSalt();
        if (salt == null) {
            enc.confirmPassword(password);
        } else {
            byte[] verifier = ei.getDecryptor().getVerifier();
            enc.confirmPassword(password, null, null, verifier, salt, null);
        }
        // move EncryptionRecord to last slide position
        records = normalizeRecords(records);
        return addEncryptionRecord(records, dea);
    }
}

Example 14 with EncryptionInfo

use of org.apache.poi.poifs.crypt.EncryptionInfo in project poi by apache.

the class HSLFSlideShowEncrypted method encryptInit.

protected void encryptInit() {
    if (enc != null) {
        return;
    }
    EncryptionInfo ei = dea.getEncryptionInfo();
    enc = (CryptoAPIEncryptor) ei.getEncryptor();
}

Example 15 with EncryptionInfo

use of org.apache.poi.poifs.crypt.EncryptionInfo in project poi by apache.

the class BinaryRC4Encryptor method createEncryptionInfoEntry.

protected void createEncryptionInfoEntry(DirectoryNode dir) throws IOException {
    DataSpaceMapUtils.addDefaultDataSpace(dir);
    final EncryptionInfo info = getEncryptionInfo();
    final BinaryRC4EncryptionHeader header = (BinaryRC4EncryptionHeader) info.getHeader();
    final BinaryRC4EncryptionVerifier verifier = (BinaryRC4EncryptionVerifier) info.getVerifier();
    EncryptionRecord er = new EncryptionRecord() {

        @Override
        public void write(LittleEndianByteArrayOutputStream bos) {
            bos.writeShort(info.getVersionMajor());
            bos.writeShort(info.getVersionMinor());
            header.write(bos);
            verifier.write(bos);
        }
    };
    DataSpaceMapUtils.createEncryptionEntry(dir, "EncryptionInfo", er);
}