Java compact1, compact2, compact3 java.security Class KeyStore.PasswordProtection（JDK8）

Constructor Detail

• PasswordProtection

  public PasswordProtection(char[] password)

  Creates a password parameter.

  The specified password is cloned before it is stored in the new PasswordProtection object.

  Parameters:

  password - the password, which may be null

• PasswordProtection

  public PasswordProtection(char[] password,
                            String protectionAlgorithm,
                            AlgorithmParameterSpec protectionParameters)

  Creates a password parameter and specifies the protection algorithm and associated parameters to use when encrypting a keystore entry.

  The specified password is cloned before it is stored in the new PasswordProtection object.

  Parameters:

  password - the password, which may be null

  protectionAlgorithm - the encryption algorithm name, for example, PBEWithHmacSHA256AndAES_256. See the Cipher section in the Java Cryptography Architecture Standard Algorithm Name Documentation for information about standard encryption algorithm names.

  protectionParameters - the encryption algorithm parameter specification, which may be null

  Throws:

  NullPointerException - if protectionAlgorithm is null

  Since:

  1.8

Method Detail

• getProtectionAlgorithm

  public String getProtectionAlgorithm()

  Gets the name of the protection algorithm. If none was set then the keystore provider will use its default protection algorithm. The name of the default protection algorithm for a given keystore type is set using the 'keystore.<type>.keyProtectionAlgorithm' security property. For example, the keystore.PKCS12.keyProtectionAlgorithm property stores the name of the default key protection algorithm used for PKCS12 keystores. If the security property is not set, an implementation-specific algorithm will be used.

  Returns:

  the algorithm name, or null if none was set

  Since:

  1.8

• getProtectionParameters

  public AlgorithmParameterSpec getProtectionParameters()

  Gets the parameters supplied for the protection algorithm.

  Returns:

  the algorithm parameter specification, or null, if none was set

  Since:

  1.8

• getPassword

  public char[] getPassword()

  Gets the password.

  Note that this method returns a reference to the password. If a clone of the array is created it is the caller's responsibility to zero out the password information after it is no longer needed.

  Returns:

  the password, which may be null

  Throws:

  IllegalStateException - if the password has been cleared (destroyed)

  See Also:

  destroy()

• destroy

  public void destroy()
               throws DestroyFailedException

  Clears the password.

  Specified by:

  destroy in interface Destroyable

  Throws:

  DestroyFailedException - if this method was unable to clear the password

• isDestroyed

  public boolean isDestroyed()

  Determines if password has been cleared.

  Specified by:

  isDestroyed in interface Destroyable

  Returns:

  true if the password has been cleared, false otherwise