de.smartics.properties.api.core.security
Class AbstractPropertyValueSecurity

java.lang.Object
  de.smartics.properties.api.core.security.AbstractPropertyValueSecurity

All Implemented Interfaces:

PropertyValueSecurity, Serializable

Direct Known Subclasses:

PropertiesBasedPropertyValueSecurity, SystemPropertyBasedPropertyValueSecurity

public abstract class AbstractPropertyValueSecurity
     
     

      
      extends 
      
      Object
     
     
     
     

      
      implements 
      
      PropertyValueSecurity
     
     

Base implementation based on Java security.

See Also:

Serialized Form

Constructor Summary

protected

AbstractPropertyValueSecurity() Default constructor.

Method Summary

protected byte[]	decodePropertyValue(String encryptedValue) Decodes the encrypted property value.
protected String	decrypt(PropertyDescriptor descriptor, String encryptedValue, SecretKey key, Cipher cipher) Decrypts the given property value.
protected String	encodePropertyValue(byte[] encryptedBytes) Encodes the encrypted bytes.
protected String	encrypt(PropertyDescriptor descriptor, String plainValue, SecretKey key, Cipher cipher) Encrypts the given property value.

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.smartics.properties.api.core.security.PropertyValueSecurity

decrypt, encrypt

Constructor Detail

AbstractPropertyValueSecurity

protected AbstractPropertyValueSecurity()

Default constructor.

Method Detail

decrypt

protected String decrypt(PropertyDescriptor descriptor,
                         String encryptedValue,
                         SecretKey key,
                         Cipher cipher)
                  throws NullPointerException,
                         SecurityException

Decrypts the given property value.

Parameters:

descriptor - the descriptor of the property.

encryptedValue - the encrypted value of the property to be decrypted.

key - the key used for decryption.

cipher - the cipher instance for decryption.

Returns:

the decrypted value.

Throws:

NullPointerException - may be thrown if descriptor is null.

SecurityException - if the value cannot be decrypted.

encrypt

protected String encrypt(PropertyDescriptor descriptor,
                         String plainValue,
                         SecretKey key,
                         Cipher cipher)
                  throws NullPointerException,
                         SecurityException

Encrypts the given property value.

Parameters:

descriptor - the descriptor of the property.

plainValue - the plain value of the property to be encrypted.

key - the key used for encryption.

cipher - the cipher instance for encryption.

Returns:

the encrypted value.

Throws:

NullPointerException - may be thrown if descriptor is null.

SecurityException - if the value cannot be encrypted.

decodePropertyValue

protected byte[] decodePropertyValue(String encryptedValue)

Decodes the encrypted property value.

Parameters:

encryptedValue - the encrypted value to decode.

Returns:

the decoded value.

encodePropertyValue

protected String encodePropertyValue(byte[] encryptedBytes)

Encodes the encrypted bytes.

Parameters:

encryptedBytes - the bytes to encode.

Returns:

the encoded bytes.