HMACParameterSpec (Java Platform SE 7 b138)

java.lang.Object
- javax.xml.crypto.dsig.spec.HMACParameterSpec

All Implemented Interfaces:

AlgorithmParameterSpec, SignatureMethodParameterSpec
```
public final class HMACParameterSpec
extends Object
implements SignatureMethodParameterSpec
```
Parameters for the XML Signature HMAC Algorithm. The parameters include an optional output length which specifies the MAC truncation length in bits. The resulting HMAC will be truncated to the specified number of bits. If the parameter is not specified, then this implies that all the bits of the hash are to be output. The XML Schema Definition of the HMACOutputLength element is defined as:
```
 <element name="HMACOutputLength" minOccurs="0" type="ds:HMACOutputLengthType"/>
 <simpleType name="HMACOutputLengthType">
   <restriction base="integer"/>
 </simpleType>
 
```
Since:

1.6

See Also:
SignatureMethod, RFC 2104

- Constructor Summary
  
  Constructors
  Constructor and Description
  
  HMACParameterSpec(int outputLength)
  Creates an HMACParameterSpec with the specified truncation length.
- Method Summary
  
  Methods
  Modifier and Type Method and Description
  
  int getOutputLength()
  Returns the truncation length.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructors
Constructor and Description
`HMACParameterSpec(int outputLength)` Creates an `HMACParameterSpec` with the specified truncation length.

Methods
Modifier and Type	Method and Description
`int`	`getOutputLength()` Returns the truncation length.

- Constructor Detail
  - HMACParameterSpec
```
public HMACParameterSpec(int outputLength)
```
    Creates an HMACParameterSpec with the specified truncation length.
    
    Parameters:
    outputLength - the truncation length in number of bits
- Method Detail
  - getOutputLength
```
public int getOutputLength()
```
    Returns the truncation length.
    
    Returns:
    the truncation length in number of bits

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2011, Oracle and/or its affiliates. All rights reserved.
DRAFT ea-b138

Class HMACParameterSpec

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

HMACParameterSpec

Method Detail

getOutputLength