SecretKeyCallback (Java EE 8)

java.lang.Object
- javax.security.auth.message.callback.SecretKeyCallback

All Implemented Interfaces:

javax.security.auth.callback.Callback
```
public class SecretKeyCallback
extends java.lang.Object
implements javax.security.auth.callback.Callback
```
Callback for acquiring a shared secret from a key repository. This Callback may be used by client or server authentication modules to obtain shared secrets (for example, passwords) without relying on a user during the Callback processing. This Callback is typically empoyed by ClientAuthModules invoked from intermediate components that need to acquire a password to authenticate to their target service.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`SecretKeyCallback.AliasRequest`	Request type for secret keys that are identified using an alias.
`static interface`	`SecretKeyCallback.Request`	Marker interface for secret key request types.

Constructor Summary

Constructors
Constructor Description

SecretKeyCallback(SecretKeyCallback.Request request)
Constructs this SecretKeyCallback with a secret key Request object.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`javax.crypto.SecretKey`	`getKey()`	Used to obtain the secret key set within the Callback.
`SecretKeyCallback.Request`	`getRequest()`	Used by the CallbackHandler to get the Request object which identifies the secret key to be returned.
`void`	`setKey(javax.crypto.SecretKey key)`	Used by the CallbackHandler to set the requested secret key within the Callback.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SecretKeyCallback
```
public SecretKeyCallback(SecretKeyCallback.Request request)
```
    Constructs this SecretKeyCallback with a secret key Request object.
    The request object identifies the secret key to be returned. If the alias is null, the handler of the callback relies on its own default.
    
    Parameters:
    
    request - Request object identifying the secret key, or null.
- Method Detail
  - getRequest
```
public SecretKeyCallback.Request getRequest()
```
    Used by the CallbackHandler to get the Request object which identifies the secret key to be returned.
    
    Returns:
    
    The Request object which identifies the private key to be returned, or null. If null, the handler of the callback relies on its own default.
  - setKey
```
public void setKey(javax.crypto.SecretKey key)
```
    Used by the CallbackHandler to set the requested secret key within the Callback.
    
    Parameters:
    
    key - The secret key, or null if no key was found.
  - getKey
```
public javax.crypto.SecretKey getKey()
```
    Used to obtain the secret key set within the Callback.
    
    Returns:
    
    The secret key, or null if no key was found.