KeyAgreementProcessor (OpenSAML :: XML Security API 4.2.0 API)

```
public interface KeyAgreementProcessor
```
Component which performs a key agreement operation.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`KeyAgreementCredential`	`execute(Credential publicCredential, String keyAlgorithm, KeyAgreementParameters parameters)`	Perform the key agreement operation and return a new credential representing the results.
`String`	`getAlgorithm()`	The key agreement algorithm URI.

- Method Detail
  - getAlgorithm
```
@Nonnull
String getAlgorithm()
```
    The key agreement algorithm URI.
    
    Returns:
    
    the algorithm
  - execute
```
@Nonnull
KeyAgreementCredential execute(@Nonnull
                               Credential publicCredential,
                               @Nonnull
                               String keyAlgorithm,
                               @Nonnull
                               KeyAgreementParameters parameters)
                        throws KeyAgreementException
```
    Perform the key agreement operation and return a new credential representing the results.
    
    Parameters:
    
    publicCredential - the public credential, which will belong either to the recipient or originator party, depending on whether encryption or decryption is being performed, respectively
    
    keyAlgorithm - the algorithm URI for which the derived key will be used
    
    parameters - parameters to the agreement operation. Internally a copy will be created so this input instance will not be modified.
    
    Returns:
    
    the agreement credential
    
    Throws:
    
    KeyAgreementException - if the key agreement operation is not completed successfully