com.mindbright.util

Class EncryptedProperties

java.lang.Object

java.util.Dictionary<K,V>

java.util.Hashtable<java.lang.Object,java.lang.Object>

java.util.Properties

com.mindbright.util.EncryptedProperties

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Object,java.lang.Object>

public class EncryptedProperties
extends java.util.Properties

Handles an encrypted properties file.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CIPHER_KEY Property holding the name of the encryption algorithm used
static java.lang.String	CONTENTS_KEY Property holding the encrypted content
static java.lang.String	HASH_KEY Property holding a hash of the encrypted data
static java.lang.String	PROPS_HEADER Property identifying the file
static java.lang.String	SIZE_KEY Property holding the size of the encrypted content

Fields inherited from class java.util.Properties

defaults

Constructor Summary

Constructors

Constructor and Description
EncryptedProperties() Create a new instance of EncryptedProperties without any default values.
EncryptedProperties(java.util.Properties defaultProperties) Create a new instance of EncryptedProperties with the given default values.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isNormalPropsFile() Checks if the underlying properties file was encrypted or not
void	load(java.io.InputStream in, java.lang.String password) Load and decrypt properties
java.lang.Object	remove(java.lang.Object key)
void	save(java.io.OutputStream out, java.lang.String header, java.lang.String password, java.lang.String cipherName) Save the properties to an encrypted file.

Methods inherited from class java.util.Properties

getProperty, getProperty, list, list, load, load, loadFromXML, propertyNames, save, setProperty, store, store, storeToXML, storeToXML, stringPropertyNames

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

HASH_KEY

public static final java.lang.String HASH_KEY

Property holding a hash of the encrypted data

See Also:

Constant Field Values

CIPHER_KEY

public static final java.lang.String CIPHER_KEY

Property holding the name of the encryption algorithm used

See Also:

Constant Field Values

CONTENTS_KEY

public static final java.lang.String CONTENTS_KEY

Property holding the encrypted content

See Also:

Constant Field Values

SIZE_KEY

public static final java.lang.String SIZE_KEY

Property holding the size of the encrypted content

See Also:

Constant Field Values

PROPS_HEADER

public static final java.lang.String PROPS_HEADER

Property identifying the file

See Also:

Constant Field Values

Constructor Detail

EncryptedProperties

public EncryptedProperties()

Create a new instance of EncryptedProperties without any default values.

EncryptedProperties

public EncryptedProperties(java.util.Properties defaultProperties)

Create a new instance of EncryptedProperties with the given default values.

Method Detail

isNormalPropsFile

public boolean isNormalPropsFile()

Checks if the underlying properties file was encrypted or not

Returns:

true if the file was no encrypted

save

public void save(java.io.OutputStream out,
        java.lang.String header,
        java.lang.String password,
        java.lang.String cipherName)
          throws java.io.IOException

Save the properties to an encrypted file.

Parameters:

out - strean to save to

header - header string which is saved before properties

password - encryption key

cipherName - name of cipher to use. Currentl the valued algorithms are: Blowfish, DES, DES3 and IDEA.

Throws:

java.io.IOException

load

public void load(java.io.InputStream in,
        java.lang.String password)
          throws java.io.IOException,
                 SSHAccessDeniedException

Load and decrypt properties

Parameters:

in - stream to load properties from

password - decryptiopn key

Throws:

java.io.IOException

SSHAccessDeniedException

remove

public java.lang.Object remove(java.lang.Object key)

Specified by:

remove in interface java.util.Map<java.lang.Object,java.lang.Object>

Overrides:

remove in class java.util.Hashtable<java.lang.Object,java.lang.Object>