Package org.h2.tools

Class ChangeFileEncryption

java.lang.Object

org.h2.util.Tool

org.h2.tools.ChangeFileEncryption

public class ChangeFileEncryption
extends Tool

Allows changing the database file encryption password or algorithm. This tool can not be used to change a password of a user. The database must be closed before using this tool.

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	cipherType
private byte[]	decryptKey
private java.lang.String	directory
private byte[]	encryptKey

Fields inherited from class org.h2.util.Tool

out

Constructor Summary

Constructors

Constructor	Description
ChangeFileEncryption()

Method Summary

Modifier and Type	Method	Description
private void	copyMvStore(java.lang.String fileName, boolean quiet, char[] decryptPassword)
static void	execute(java.lang.String dir, java.lang.String db, java.lang.String cipher, char[] decryptPassword, char[] encryptPassword, boolean quiet)	Changes the password for a database.
private static java.nio.channels.FileChannel	getFileChannel(java.lang.String fileName, java.lang.String r, byte[] decryptKey)
static void	main(java.lang.String... args)	Options are case sensitive.
private void	process(java.lang.String fileName, boolean quiet, char[] decryptPassword)
private void	process(java.lang.String dir, java.lang.String db, java.lang.String cipher, char[] decryptPassword, char[] encryptPassword, boolean quiet)
void	runTool(java.lang.String... args)	Run the tool with the given output stream and arguments.

Methods inherited from class org.h2.util.Tool

isOption, printNoDatabaseFilesFound, setOut, showUsage, showUsageAndThrowUnsupportedOption, throwUnsupportedOption

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

directory

private java.lang.String directory

cipherType

private java.lang.String cipherType

decryptKey

private byte[] decryptKey

encryptKey

private byte[] encryptKey

Constructor Detail

ChangeFileEncryption

public ChangeFileEncryption()

Method Detail

main

public static void main(java.lang.String... args)

Options are case sensitive.

Supported options

[-help] or [-?]	Print the list of options
[-cipher type]	The encryption type (AES)
[-dir <dir>]	The database directory (default: .)
[-db <database>]	Database name (all databases if not set)
[-decrypt <pwd>]	The decryption password (if not set: not yet encrypted)
[-encrypt <pwd>]	The encryption password (if not set: do not encrypt)
[-quiet]	Do not print progress information

Parameters:

args - the command line arguments

runTool

public void runTool(java.lang.String... args)
             throws java.sql.SQLException

Description copied from class: Tool

Run the tool with the given output stream and arguments.

Specified by:

runTool in class Tool

Parameters:

args - the argument list

Throws:

java.sql.SQLException - on failure

execute

public static void execute(java.lang.String dir,
                           java.lang.String db,
                           java.lang.String cipher,
                           char[] decryptPassword,
                           char[] encryptPassword,
                           boolean quiet)
                    throws java.sql.SQLException

Changes the password for a database. The passwords must be supplied as char arrays and are cleaned in this method. The database must be closed before calling this method.

Parameters:

dir - the directory (. for the current directory)

db - the database name (null for all databases)

cipher - the cipher (AES)

decryptPassword - the decryption password as a char array

encryptPassword - the encryption password as a char array

quiet - don't print progress information

Throws:

java.sql.SQLException - on failure

process

private void process(java.lang.String dir,
                     java.lang.String db,
                     java.lang.String cipher,
                     char[] decryptPassword,
                     char[] encryptPassword,
                     boolean quiet)
              throws java.sql.SQLException

Throws:

java.sql.SQLException

process

private void process(java.lang.String fileName,
                     boolean quiet,
                     char[] decryptPassword)
              throws java.sql.SQLException

Throws:

java.sql.SQLException

copyMvStore

private void copyMvStore(java.lang.String fileName,
                         boolean quiet,
                         char[] decryptPassword)
                  throws java.io.IOException,
                         java.sql.SQLException

Throws:

java.io.IOException

java.sql.SQLException

getFileChannel

private static java.nio.channels.FileChannel getFileChannel(java.lang.String fileName,
                                                            java.lang.String r,
                                                            byte[] decryptKey)
                                                     throws java.io.IOException

Throws:

java.io.IOException