KeyDerivationMethod (Apache XML Security for Java 4.0.4 API)

All Known Implementing Classes:

KeyDerivationMethodImpl
```
public interface KeyDerivationMethod
```
The key derivation is to generate new cryptographic key material from existing key material such as the shared secret and any other (private or public) information. The implementations of this interface provides XML serializing/deserializing of the: KeyDerivationParameters for various key derivation algorithms. The Schema for KeyDerivationMethod is as follows:
```
 
 
   
     
   
   
 
 
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`String`	`getAlgorithm()`	Returns the algorithm URI of this `KeyDerivationMethod`.
`KDFParams`	`getKDFParams()`	Returns the KDF parameters used by the key derivation algorithm.

- Method Detail
  - getAlgorithm
```
String getAlgorithm()
```
    Returns the algorithm URI of this KeyDerivationMethod.
    
    Returns:
    
    the algorithm URI string
  - getKDFParams
```
KDFParams getKDFParams()
                throws XMLSecurityException
```
    Returns the KDF parameters used by the key derivation algorithm. Currently supported types are: ConcatKDFParams and HKDFParams.
    
    Returns:
    
    the KDFParams used by the key derivation algorithm
    
    Throws:
    
    XMLSecurityException - if the KDFParams cannot be created