com.rsa.swsj.signature
Class SigReference

java.lang.Object
  com.rsa.swsj.Reference
      com.rsa.swsj.signature.SigReference

public final class SigReference

extends Reference

This class creates and stores the Reference element in an XML signature. It includes the digest method and resulting digest value calculated over the identified data object. It can also include transformations that produce the input to the digest operation. Reference validation involves checking the digest value against the identified data object. If the digest algorithm is not set, the default SHA1 hashing algorithm is used.

Field Summary
static java.lang.String	ALG_DIGEST_SHA1 Specifies the SHA-1 digest algorithm.

 

Fields inherited from class com.rsa.swsj.Reference

ALG_TRANSFORM_BASE64, ALG_TRANSFORM_C14N, ALG_TRANSFORM_C14N_WITH_COMMENTS, ALG_TRANSFORM_ENVELOPED_SIGNATURE, ALG_TRANSFORM_EXCLC14N, ALG_TRANSFORM_EXCLC14N_WITH_COMMENTS, ALG_TRANSFORM_XPATH

 

Constructor Summary

SigReference(SWSJContext context) Creates a SigReference object and initializes it with the context only.

SigReference(SWSJContext context, java.lang.String uri, java.lang.String digestMethod) Creates a SigReference object and initializes it with the given values.

 

Method Summary
java.lang.String	getDigestMethod() Gets the digest algorithm of this reference.
byte[]	getDigestValue() Gets the digest value.
void	setDigestMethod(java.lang.String digestMethod) Sets the digest algorithm of this reference.

 

Methods inherited from class com.rsa.swsj.Reference

addTransform, getContext, getId, getTransformParams, getTransforms, getURI, setId, setURI

 

Methods inherited from class java.lang.Object

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

 

Field Detail

ALG_DIGEST_SHA1

public static final java.lang.String ALG_DIGEST_SHA1

Specifies the SHA-1 digest algorithm.

SigReference

public SigReference(SWSJContext context)
             throws InvalidParameterException

Creates a SigReference object and initializes it with the context only. If the digest algorithm is not set later, the default SHA1 hashing algorithm is used.

Parameters:

context - An object that collects a number of common parameters and state variables; for example, JCE provider.

Throws:

InvalidParameterException - If context is invalid.

SigReference

public SigReference(SWSJContext context,
                    java.lang.String uri,
                    java.lang.String digestMethod)
             throws InvalidParameterException

Creates a SigReference object and initializes it with the given values.

Parameters:

context - An object that collects a number of common parameters and state variables; for example, JCE provider.

uri - The URI that identifies the data object.

digestMethod - The digest algorithm.

Throws:

InvalidParameterException - If any of the parameters are invalid.

setDigestMethod

public void setDigestMethod(java.lang.String digestMethod)
                     throws InvalidParameterException

Sets the digest algorithm of this reference. Call this method only when signing the document.

Parameters:

digestMethod - The digest algorithm to apply to the signed object.

Throws:

InvalidParameterException - If the digest algorithm is no supported.

getDigestMethod

public java.lang.String getDigestMethod()

Gets the digest algorithm of this reference.

Returns:

The digest algorithm as a String.

getDigestValue

public byte[] getDigestValue()

Gets the digest value.

Returns:

A byte array containing the digest value.