Java Code Examples for net.sqlcipher.database.SQLiteDatabase#rawExecSQL()

The following examples show how to use net.sqlcipher.database.SQLiteDatabase#rawExecSQL() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: cwac-saferoom   File: SQLCipherUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Replaces this database with a version encrypted with the supplied
 * passphrase, deleting the original. Do not call this while the database
 * is open, which includes during any Room migrations.
 *
 * The passphrase is untouched in this call. If you are going to turn around
 * and use it with SafeHelperFactory.fromUser(), fromUser() will clear the
 * passphrase. If not, please set all bytes of the passphrase to 0 or something
 * to clear out the passphrase.
 *
 * @param ctxt a Context
 * @param originalFile a File pointing to the database
 * @param passphrase the passphrase from the user
 * @throws IOException
 */
public static void encrypt(Context ctxt, File originalFile, byte[] passphrase)
  throws IOException {
  SQLiteDatabase.loadLibs(ctxt);

  if (originalFile.exists()) {
    File newFile=File.createTempFile("sqlcipherutils", "tmp",
        ctxt.getCacheDir());
    SQLiteDatabase db=
      SQLiteDatabase.openDatabase(originalFile.getAbsolutePath(),
        "", null, SQLiteDatabase.OPEN_READWRITE);
    int version=db.getVersion();

    db.close();

    db=SQLiteDatabase.openDatabase(newFile.getAbsolutePath(), passphrase,
      null, SQLiteDatabase.OPEN_READWRITE, null, null);

    final SQLiteStatement st=db.compileStatement("ATTACH DATABASE ? AS plaintext KEY ''");

    st.bindString(1, originalFile.getAbsolutePath());
    st.execute();

    db.rawExecSQL("SELECT sqlcipher_export('main', 'plaintext')");
    db.rawExecSQL("DETACH DATABASE plaintext");
    db.setVersion(version);
    st.close();
    db.close();

    originalFile.delete();
    newFile.renameTo(originalFile);
  }
  else {
    throw new FileNotFoundException(originalFile.getAbsolutePath()+" not found");
  }
}
 
Example 2
Source Project: cwac-saferoom   File: SQLCipherUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Replaces this database with a decrypted version, deleting the original
 * encrypted database. Do not call this while the database is open, which
 * includes during any Room migrations.
 *
 * The passphrase is untouched in this call. Please set all bytes of the
 * passphrase to 0 or something to clear out the passphrase if you are done
 * with it.
 *
 * @param ctxt a Context
 * @param originalFile a File pointing to the encrypted database
 * @param passphrase the passphrase from the user for the encrypted database
 * @throws IOException
 */
public static void decrypt(Context ctxt, File originalFile, byte[] passphrase)
  throws IOException {
  SQLiteDatabase.loadLibs(ctxt);

  if (originalFile.exists()) {
    File newFile=
      File.createTempFile("sqlcipherutils", "tmp",
        ctxt.getCacheDir());
    SQLiteDatabase db=
      SQLiteDatabase.openDatabase(originalFile.getAbsolutePath(),
        passphrase, null, SQLiteDatabase.OPEN_READWRITE, null, null);

    final SQLiteStatement st=db.compileStatement("ATTACH DATABASE ? AS plaintext KEY ''");

    st.bindString(1, newFile.getAbsolutePath());
    st.execute();

    db.rawExecSQL("SELECT sqlcipher_export('plaintext')");
    db.rawExecSQL("DETACH DATABASE plaintext");

    int version=db.getVersion();

    st.close();
    db.close();

    db=SQLiteDatabase.openDatabase(newFile.getAbsolutePath(), "",
      null, SQLiteDatabase.OPEN_READWRITE);
    db.setVersion(version);
    db.close();

    originalFile.delete();
    newFile.renameTo(originalFile);
  }
  else {
    throw new FileNotFoundException(originalFile.getAbsolutePath()+" not found");
  }
}
 
Example 3
@Override
public void postKey(SQLiteDatabase database) {
    /* V2 - V3 migration */
    if (!isMigratedV3(mContext, database)) {
        database.rawExecSQL("PRAGMA cipher_migrate;");
        setMigratedV3(mContext, database, true);
    }

}
 
Example 4
Source Project: kripton   File: SQLCipherUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Replaces this database with a version encrypted with the supplied
 * passphrase, deleting the original. Do not call this while the database
 * is open, which includes during any Room migrations.
 *
 * The passphrase is untouched in this call. If you are going to turn around
 * and use it with SafeHelperFactory.fromUser(), fromUser() will clear the
 * passphrase. If not, please set all bytes of the passphrase to 0 or something
 * to clear out the passphrase.
 *
 * @param ctxt a Context
 * @param originalFile a File pointing to the database
 * @param passphrase the passphrase from the user
 * @throws IOException
 */
public static void encrypt(Context ctxt, File originalFile, byte[] passphrase)
  throws IOException {
  SQLiteDatabase.loadLibs(ctxt);

  if (originalFile.exists()) {
    File newFile=File.createTempFile("sqlcipherutils", "tmp",
        ctxt.getCacheDir());
    SQLiteDatabase db=
      SQLiteDatabase.openDatabase(originalFile.getAbsolutePath(),
        "", null, SQLiteDatabase.OPEN_READWRITE);
    int version=db.getVersion();

    db.close();

    db=SQLiteDatabase.openDatabase(newFile.getAbsolutePath(), passphrase,
      null, SQLiteDatabase.OPEN_READWRITE, null, null);

    final SQLiteStatement st=db.compileStatement("ATTACH DATABASE ? AS plaintext KEY ''");

    st.bindString(1, originalFile.getAbsolutePath());
    st.execute();

    db.rawExecSQL("SELECT sqlcipher_export('main', 'plaintext')");
    db.rawExecSQL("DETACH DATABASE plaintext");
    db.setVersion(version);
    st.close();
    db.close();

    originalFile.delete();
    newFile.renameTo(originalFile);
  }
  else {
    throw new FileNotFoundException(originalFile.getAbsolutePath()+" not found");
  }
}
 
Example 5
Source Project: kripton   File: SQLCipherUtils.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Replaces this database with a decrypted version, deleting the original
 * encrypted database. Do not call this while the database is open, which
 * includes during any Room migrations.
 *
 * The passphrase is untouched in this call. Please set all bytes of the
 * passphrase to 0 or something to clear out the passphrase if you are done
 * with it.
 *
 * @param ctxt a Context
 * @param originalFile a File pointing to the encrypted database
 * @param passphrase the passphrase from the user for the encrypted database
 * @throws IOException
 */
public static void decrypt(Context ctxt, File originalFile, byte[] passphrase)
  throws IOException {
  SQLiteDatabase.loadLibs(ctxt);

  if (originalFile.exists()) {
    File newFile=
      File.createTempFile("sqlcipherutils", "tmp",
        ctxt.getCacheDir());
    SQLiteDatabase db=
      SQLiteDatabase.openDatabase(originalFile.getAbsolutePath(),
        passphrase, null, SQLiteDatabase.OPEN_READWRITE, null, null);

    final SQLiteStatement st=db.compileStatement("ATTACH DATABASE ? AS plaintext KEY ''");

    st.bindString(1, newFile.getAbsolutePath());
    st.execute();

    db.rawExecSQL("SELECT sqlcipher_export('plaintext')");
    db.rawExecSQL("DETACH DATABASE plaintext");

    int version=db.getVersion();

    st.close();
    db.close();

    db=SQLiteDatabase.openDatabase(newFile.getAbsolutePath(), "",
      null, SQLiteDatabase.OPEN_READWRITE);
    db.setVersion(version);
    db.close();

    originalFile.delete();
    newFile.renameTo(originalFile);
  }
  else {
    throw new FileNotFoundException(originalFile.getAbsolutePath()+" not found");
  }
}
 
Example 6
@Override
public void postKey(SQLiteDatabase database)
{
    /* V2 - V3 migration */
    if (!isMigratedV3(mContext, database)) 
    {
        database.rawExecSQL("PRAGMA cipher_migrate;");
        setMigratedV3(mContext, database, true);
    }

}
 
Example 7
public void postKey(SQLiteDatabase database) {
    database.rawExecSQL("PRAGMA cipher_page_size = 16384;");
    database.rawExecSQL("PRAGMA cipher_memory_security = OFF;");
}