org.opensaml.xmlsec.signature.support

Class Signer

java.lang.Object

org.opensaml.xmlsec.signature.support.Signer

public final class Signer
extends Object

A service class which is responsible for cryptographically computing and storing the actual digital signature content held within a Signature instance. This must be done as a separate step in order to support the following cases:

• Multiple signable objects appear in the DOM tree, in which case the order that the objects should be signed in is not known (e.g. object 1 could appear first in the tree, but contain a reference to signable object 2)
• The DOM tree resulting from marshalling of the XMLObject tree is grafted onto another DOM tree which may cause element ID conflicts that would invalidate the signature

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Signer() Constructor.

Method Summary

Modifier and Type	Method and Description
static void	signObject(Signature signature) Signs a single XMLObject.
static void	signObjects(List<Signature> signatures) Signs the given XMLObject in the order provided.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Signer

protected Signer()

Constructor.

Method Detail

signObjects

public static void signObjects(@Nonnull
                               List<Signature> signatures)
                        throws SignatureException

Signs the given XMLObject in the order provided.

Parameters:

signatures - an ordered list of XMLObject to be signed

Throws:

SignatureException - thrown if there is an error computing the signature

signObject

public static void signObject(@Nonnull
                              Signature signature)
                       throws SignatureException

Signs a single XMLObject.

Parameters:

signature - the signature to compute the signature on

Throws:

SignatureException - thrown if there is an error computing the signature