# Package org.eclipse.net4j.util.security

Interfaces and classes for security, negotiation, authentication, authorization and cryptography.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  IAuthenticator | Authenticates users.
  IAuthenticator2 | Extension interface for authenticators that can update user credentials in addition to authenticating them.
  IChallengeResponse |
  ICredentials |
  ICredentialsProvider |
  ICredentialsProvider2 |
  INegotiationContext |
  INegotiationContext.Receiver |
  INegotiator |
  INegotiatorAware |
  IPasswordCredentials |
  IPasswordCredentialsProvider |
  IPasswordCredentialsProvider.Provider | Interface implemented by protocol objects that can supply an `IPasswordCredentialsProvider`.
  IPasswordCredentialsProvider2 |
  IPasswordCredentialsUpdate | Password credentials with an update (new password) in addition to the usual user ID and password for authentication of the password change.
  IPasswordCredentialsUpdateProvider | Interface for providers of password credentials updates.
  IRandomizer |
  IUserAware |
  IUserManager |

- Class Summary
  Class | Description
  --- | ---
  AuthenticatorFactory |
  ChallengeNegotiator |
  ChallengeNegotiatorConfigurer |
  ChallengeNegotiatorFactory |
  ChallengeResponseNegotiator |
  Credentials |
  CredentialsProviderFactory |
  DiffieHellman | Executes the Diffie-Hellman key agreement protocol between 2 parties: `DiffieHellman.Server` and `DiffieHellman.Client`.
  DiffieHellman.Client | Executes the client-side of the Diffie-Hellman key agreement protocol.
  DiffieHellman.Client.Response |
  DiffieHellman.ParameterSpecGenerator | Creates Diffie-Hellman parameters.
  DiffieHellman.Server | Executes the server-side of the Diffie-Hellman key agreement protocol.
  DiffieHellman.Server.Challenge |
  DiffieHellman.SkipParameterSpec |
  FileAuthenticatorFactory | TODO Consider file attributes when creating initially empty file
  FileUserManager |
  FileUserManagerFactory | TODO Consider file attributes when creating initially empty file
  NegotiationContext |
  Negotiator<STATE extends java.lang.Enum<?>,EVENT extends java.lang.Enum<?>> |
  NegotiatorFactory |
  PasswordCredentials |
  PasswordCredentialsProvider |
  PasswordCredentialsProvider.Delegating |
  PasswordCredentialsUpdate | Default implementation of the `IPasswordCredentialsUpdate` interface.
  Randomizer |
  RandomizerFactory |
  ResponseNegotiator |
  ResponseNegotiatorFactory |
  ResponseNegotiatorInjector |
  SecurityUtil |
  UserManager |
  UserManagerAuthenticator |
  UserManagerFactory |

- Enum Summary
  Enum | Description
  --- | ---
  CredentialsUpdateOperation |
  IChallengeResponse.Event |
  IChallengeResponse.State |

- Exception Summary
  Exception | Description
  --- | ---
  NegotiationException |
  NotAuthenticatedException | An unchecked `security exception` indicating that a user has canceled an attempt to authenticate himself.

## Package org.eclipse.net4j.util.security Description

Interfaces and classes for security, negotiation, authentication, authorization and cryptography.

Copyright (c) 2004-2019 Eike Stepper (Loehne, Germany) and others.
All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html