public void AddTransform(Transform transform)
{
if (transform == null)
{
throw new ArgumentNullException(nameof(transform));
}
TransformChain.Add(transform);
}
public void AddTransform(Transform transform)
{
if (transform == null)
{
throw new ArgumentNullException("transform");
}
transform.Reference = this;
TransformChain.Add(transform);
}
public void FullChain ()
{
TransformChain chain = new TransformChain ();
XmlDsigBase64Transform base64 = new XmlDsigBase64Transform ();
chain.Add (base64);
AssertEquals ("XmlDsigBase64Transform", base64, chain[0]);
AssertEquals ("count 1", 1, chain.Count);
XmlDsigC14NTransform c14n = new XmlDsigC14NTransform ();
chain.Add (c14n);
AssertEquals ("XmlDsigC14NTransform", c14n, chain[1]);
AssertEquals ("count 2", 2, chain.Count);
XmlDsigC14NWithCommentsTransform c14nc = new XmlDsigC14NWithCommentsTransform ();
chain.Add (c14nc);
AssertEquals ("XmlDsigC14NWithCommentsTransform", c14nc, chain[2]);
AssertEquals ("count 3", 3, chain.Count);
XmlDsigEnvelopedSignatureTransform esign = new XmlDsigEnvelopedSignatureTransform ();
chain.Add (esign);
AssertEquals ("XmlDsigEnvelopedSignatureTransform", esign, chain[3]);
AssertEquals ("count 4", 4, chain.Count);
XmlDsigXPathTransform xpath = new XmlDsigXPathTransform ();
chain.Add (xpath);
AssertEquals ("XmlDsigXPathTransform", xpath, chain[4]);
AssertEquals ("count 5", 5, chain.Count);
XmlDsigXsltTransform xslt = new XmlDsigXsltTransform ();
chain.Add (xslt);
AssertEquals ("XmlDsigXsltTransform", xslt, chain[5]);
AssertEquals ("count 6", 6, chain.Count);
}
public void FullChain ()
{
TransformChain chain = new TransformChain ();
XmlDsigBase64Transform base64 = new XmlDsigBase64Transform ();
chain.Add (base64);
Assert.AreEqual (base64, chain[0], "XmlDsigBase64Transform");
Assert.AreEqual (1, chain.Count, "count 1");
XmlDsigC14NTransform c14n = new XmlDsigC14NTransform ();
chain.Add (c14n);
Assert.AreEqual (c14n, chain[1], "XmlDsigC14NTransform");
Assert.AreEqual (2, chain.Count, "count 2");
XmlDsigC14NWithCommentsTransform c14nc = new XmlDsigC14NWithCommentsTransform ();
chain.Add (c14nc);
Assert.AreEqual (c14nc, chain[2], "XmlDsigC14NWithCommentsTransform");
Assert.AreEqual (3, chain.Count, "count 3");
XmlDsigEnvelopedSignatureTransform esign = new XmlDsigEnvelopedSignatureTransform ();
chain.Add (esign);
Assert.AreEqual (esign, chain[3], "XmlDsigEnvelopedSignatureTransform");
Assert.AreEqual (4, chain.Count, "count 4");
XmlDsigXPathTransform xpath = new XmlDsigXPathTransform ();
chain.Add (xpath);
Assert.AreEqual (xpath, chain[4], "XmlDsigXPathTransform");
Assert.AreEqual (5, chain.Count, "count 5");
XmlDsigXsltTransform xslt = new XmlDsigXsltTransform ();
chain.Add (xslt);
Assert.AreEqual (xslt, chain[5], "XmlDsigXsltTransform");
Assert.AreEqual (6, chain.Count, "count 6");
}
public void AddTransform(Transform transform)
{
chain.Add(transform);
}
public override void LoadXml (XmlElement value)
{
if (value == null)
throw new ArgumentNullException ("value");
if ((value.LocalName != XmlEncryption.ElementNames.CipherReference) || (value.NamespaceURI != EncryptedXml.XmlEncNamespaceUrl))
throw new CryptographicException ("Malformed CipherReference element.");
else {
Uri = null;
TransformChain = new TransformChain ();
foreach (XmlNode n in value.ChildNodes) {
if (n is XmlWhitespace)
continue;
switch (n.LocalName) {
case XmlEncryption.ElementNames.Transforms:
foreach (XmlNode xn in ((XmlElement) n).GetElementsByTagName (XmlSignature.ElementNames.Transform, XmlSignature.NamespaceURI)) {
Transform t = null;
switch (((XmlElement) xn).Attributes [XmlSignature.AttributeNames.Algorithm].Value) {
case XmlSignature.AlgorithmNamespaces.XmlDsigBase64Transform:
t = new XmlDsigBase64Transform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigC14NTransform:
t = new XmlDsigC14NTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigC14NWithCommentsTransform:
t = new XmlDsigC14NWithCommentsTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigEnvelopedSignatureTransform:
t = new XmlDsigEnvelopedSignatureTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigXPathTransform:
t = new XmlDsigXPathTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigXsltTransform:
t = new XmlDsigXsltTransform ();
break;
#if NET_2_0
case XmlSignature.AlgorithmNamespaces.XmlDecryptionTransform:
t = new XmlDecryptionTransform ();
break;
#endif
default:
continue;
}
t.LoadInnerXml (((XmlElement) xn).ChildNodes);
TransformChain.Add (t);
}
break;
}
}
if (value.HasAttribute (XmlEncryption.AttributeNames.URI))
Uri = value.Attributes [XmlEncryption.AttributeNames.URI].Value;
}
}
public virtual void LoadXml(XmlElement value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
else
{
Uri = null;
TransformChain = new TransformChain();
foreach (XmlNode n in value.ChildNodes)
{
if (n is XmlWhitespace)
{
continue;
}
switch (n.LocalName)
{
case XmlEncryption.ElementNames.Transforms:
foreach (XmlNode xn in ((XmlElement)n).GetElementsByTagName(XmlSignature.ElementNames.Transform, XmlSignature.NamespaceURI))
{
Transform t = null;
switch (((XmlElement)xn).Attributes [XmlSignature.AttributeNames.Algorithm].Value)
{
case XmlSignature.AlgorithmNamespaces.XmlDsigBase64Transform:
t = new XmlDsigBase64Transform();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigC14NTransform:
t = new XmlDsigC14NTransform();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigC14NWithCommentsTransform:
t = new XmlDsigC14NWithCommentsTransform();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigEnvelopedSignatureTransform:
t = new XmlDsigEnvelopedSignatureTransform();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigXPathTransform:
t = new XmlDsigXPathTransform();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigXsltTransform:
t = new XmlDsigXsltTransform();
break;
#if NET_2_0
case XmlSignature.AlgorithmNamespaces.XmlDsigExcC14NTransform:
t = new XmlDsigExcC14NTransform();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigExcC14NWithCommentsTransform:
t = new XmlDsigExcC14NWithCommentsTransform();
break;
case XmlSignature.AlgorithmNamespaces.XmlDecryptionTransform:
t = new XmlDecryptionTransform();
break;
#endif
default:
continue;
}
t.LoadInnerXml(((XmlElement)xn).ChildNodes);
TransformChain.Add(t);
}
break;
}
}
if (value.HasAttribute(XmlEncryption.AttributeNames.URI))
{
Uri = value.Attributes [XmlEncryption.AttributeNames.URI].Value;
}
}
}
public virtual void LoadXml (XmlElement value)
{
if (value == null)
throw new ArgumentNullException ("value");
else {
Uri = null;
TransformChain = new TransformChain ();
foreach (XmlNode n in value.ChildNodes) {
if (n is XmlWhitespace)
continue;
switch (n.LocalName) {
case XmlEncryption.ElementNames.Transforms:
foreach (XmlNode xn in ((XmlElement) n).GetElementsByTagName (XmlSignature.ElementNames.Transform, XmlSignature.NamespaceURI)) {
Transform t = null;
switch (((XmlElement) xn).Attributes [XmlSignature.AttributeNames.Algorithm].Value) {
case XmlSignature.AlgorithmNamespaces.XmlDsigBase64Transform:
t = new XmlDsigBase64Transform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigC14NTransform:
t = new XmlDsigC14NTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigC14NWithCommentsTransform:
t = new XmlDsigC14NWithCommentsTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigEnvelopedSignatureTransform:
t = new XmlDsigEnvelopedSignatureTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigXPathTransform:
t = new XmlDsigXPathTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigXsltTransform:
t = new XmlDsigXsltTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigExcC14NTransform:
t = new XmlDsigExcC14NTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDsigExcC14NWithCommentsTransform:
t = new XmlDsigExcC14NWithCommentsTransform ();
break;
case XmlSignature.AlgorithmNamespaces.XmlDecryptionTransform:
t = new XmlDecryptionTransform ();
break;
default:
continue;
}
t.LoadInnerXml (((XmlElement) xn).ChildNodes);
TransformChain.Add (t);
}
break;
}
}
if (value.HasAttribute (XmlEncryption.AttributeNames.URI))
Uri = value.Attributes [XmlEncryption.AttributeNames.URI].Value;
}
}
/// <include file='doc\SignedXml.uex' path='docs/doc[@for="SignedXml.ComputeSignature1"]/*' />
public void ComputeSignature(KeyedHashAlgorithm macAlg)
{
// Do some sanity checks
if (macAlg == null)
{
throw new ArgumentNullException("macAlg");
}
if (!(macAlg is HMACSHA1))
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_SignatureMethodKeyMismatch"));
}
int iSignatureLength;
if (m_signature.SignedInfo.SignatureLength == null)
{
iSignatureLength = macAlg.HashSize;
}
else
{
iSignatureLength = Convert.ToInt32(m_signature.SignedInfo.SignatureLength);
}
// iSignatureLength should be less than hash size
if (iSignatureLength < 0 || iSignatureLength > macAlg.HashSize)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_InvalidSignatureLength"));
}
if (iSignatureLength % 8 != 0)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_InvalidSignatureLength2"));
}
BuildDigestedReferences();
SignedInfo.SignatureMethod = XmlDsigHMACSHA1Url;
// Compute the hash of the SignedInfo object
XmlElement signedInfo = SignedInfo.GetXml().Clone() as XmlElement;
// Add non default namespaces in scope
if (m_namespaces != null)
{
foreach (XmlNode attrib in m_namespaces)
{
string name = ((attrib.Prefix != String.Empty) ? attrib.Prefix + ":" + attrib.LocalName : attrib.LocalName);
// Skip the attribute if one with the same qualified name already exists
if (signedInfo.HasAttribute(name) || (name.Equals("xmlns") && signedInfo.NamespaceURI != String.Empty))
{
continue;
}
XmlAttribute nsattrib = m_containingDocument.CreateAttribute(name);
nsattrib.Value = ((XmlNode)attrib).Value;
signedInfo.SetAttributeNode(nsattrib);
}
}
#if _DEBUG
if (debug)
{
Console.WriteLine("computed signedInfo: ");
Console.WriteLine(signedInfo.OuterXml);
}
#endif
TransformChain tc = new TransformChain();
Transform c14nMethodTransform = (Transform)CryptoConfig.CreateFromName(SignedInfo.CanonicalizationMethod);
if (c14nMethodTransform == null)
{
throw new CryptographicException(String.Format(SecurityResources.GetResourceString("Cryptography_Xml_CreateTransformFailed"), SignedInfo.CanonicalizationMethod));
}
tc.Add(c14nMethodTransform);
string strBaseUri = (m_containingDocument == null ? null : m_containingDocument.BaseURI);
XmlResolver resolver = (m_bResolverSet ? m_xmlResolver : new XmlSecureResolver(new XmlUrlResolver(), strBaseUri));
Stream hashInput = tc.TransformToOctetStream(PreProcessElementInput(signedInfo, resolver, strBaseUri), resolver, strBaseUri);
byte[] hashValue = macAlg.ComputeHash(hashInput);
m_signature.SignatureValue = new byte[iSignatureLength / 8];
Buffer.BlockCopy(hashValue, 0, m_signature.SignatureValue, 0, iSignatureLength / 8);
#if _DEBUG
if (debug)
{
Console.WriteLine("computed hash value: " + Convert.ToBase64String(hashValue));
}
#endif
}
/// <include file='doc\SignedXml.uex' path='docs/doc[@for="SignedXml.ComputeSignature"]/*' />
public void ComputeSignature()
{
BuildDigestedReferences();
// Load the key
AsymmetricAlgorithm key;
if (SigningKey != null)
{
key = SigningKey;
}
else
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_LoadKeyFailed"));
}
if (key == null)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_LoadKeyFailed"));
}
// Check the signature algorithm associated with the key so that we can accordingly set
// the signature method
if (key is DSA)
{
SignedInfo.SignatureMethod = XmlDsigDSAUrl;
}
else if (key is RSA)
{
// Default to RSA-SHA1
if (SignedInfo.SignatureMethod == null)
{
SignedInfo.SignatureMethod = XmlDsigRSASHA1Url;
}
}
else
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_CreatedKeyFailed"));
}
// Compute the hash of the SignedInfo object
XmlElement signedInfo = SignedInfo.GetXml().Clone() as XmlElement;
// Add non default namespaces in scope
if (m_namespaces != null)
{
foreach (XmlNode attrib in m_namespaces)
{
string name = ((attrib.Prefix != String.Empty) ? attrib.Prefix + ":" + attrib.LocalName : attrib.LocalName);
// Skip the attribute if one with the same qualified name already exists
if (signedInfo.HasAttribute(name) || (name.Equals("xmlns") && signedInfo.NamespaceURI != String.Empty))
{
continue;
}
XmlAttribute nsattrib = m_containingDocument.CreateAttribute(name);
nsattrib.Value = ((XmlNode)attrib).Value;
signedInfo.SetAttributeNode(nsattrib);
}
}
#if _DEBUG
if (debug)
{
Console.WriteLine("computed signedInfo: ");
Console.WriteLine(signedInfo.OuterXml);
}
#endif
TransformChain tc = new TransformChain();
Transform c14nMethodTransform = (Transform)CryptoConfig.CreateFromName(SignedInfo.CanonicalizationMethod);
if (c14nMethodTransform == null)
{
throw new CryptographicException(String.Format(SecurityResources.GetResourceString("Cryptography_Xml_CreateTransformFailed"), SignedInfo.CanonicalizationMethod));
}
tc.Add(c14nMethodTransform);
string strBaseUri = (m_containingDocument == null ? null : m_containingDocument.BaseURI);
XmlResolver resolver = (m_bResolverSet ? m_xmlResolver : new XmlSecureResolver(new XmlUrlResolver(), strBaseUri));
Stream hashInput = tc.TransformToOctetStream(PreProcessElementInput(signedInfo, resolver, strBaseUri), resolver, strBaseUri);
// See if there is a signature description class defined through the Config file
SignatureDescription signatureDescription = (SignatureDescription)CryptoConfig.CreateFromName(SignedInfo.SignatureMethod);
if (signatureDescription == null)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_SignatureDescriptionNotCreated"));
}
// calculate the hash
HashAlgorithm hashAlg = signatureDescription.CreateDigest();
if (hashAlg == null)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_CreateHashAlgorithmFailed"));
}
byte[] hashValue = hashAlg.ComputeHash(hashInput);
AsymmetricSignatureFormatter asymmetricSignatureFormatter = signatureDescription.CreateFormatter(key);
m_signature.SignatureValue = asymmetricSignatureFormatter.CreateSignature(hashAlg);
#if _DEBUG
if (debug)
{
Console.WriteLine("computed hash value: " + Convert.ToBase64String(hashValue));
}
#endif
}
/// <include file='doc\SignedXml.uex' path='docs/doc[@for="SignedXml.CheckSignature2"]/*' />
public bool CheckSignature(KeyedHashAlgorithm macAlg)
{
// Do some sanity checks
if (macAlg == null)
{
throw new ArgumentNullException("macAlg");
}
int iSignatureLength;
if (m_signature.SignedInfo.SignatureLength == null)
{
iSignatureLength = macAlg.HashSize;
}
else
{
iSignatureLength = Convert.ToInt32(m_signature.SignedInfo.SignatureLength);
}
// iSignatureLength should be less than hash size
if (iSignatureLength < 0 || iSignatureLength > macAlg.HashSize)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_InvalidSignatureLength"));
}
if (iSignatureLength % 8 != 0)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_InvalidSignatureLength2"));
}
if (m_signature.SignatureValue == null)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_SignatureValueRequired"));
}
if (m_signature.SignatureValue.Length != iSignatureLength / 8)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_InvalidSignatureLength"));
}
// set up the canonicalizer & canonicalize SignedInfo
TransformChain tc = new TransformChain();
Transform c14nMethodTransform = (Transform)CryptoConfig.CreateFromName(SignedInfo.CanonicalizationMethod);
if (c14nMethodTransform == null)
{
throw new CryptographicException(String.Format(SecurityResources.GetResourceString("Cryptography_Xml_CreateTransformFailed"), SignedInfo.CanonicalizationMethod));
}
tc.Add(c14nMethodTransform);
XmlElement signedInfo = SignedInfo.GetXml().Clone() as XmlElement;
// Add non default namespaces in scope
if (m_namespaces != null)
{
foreach (XmlNode attrib in m_namespaces)
{
string name = ((attrib.Prefix != String.Empty) ? attrib.Prefix + ":" + attrib.LocalName : attrib.LocalName);
// Skip the attribute if one with the same qualified name already exists
if (signedInfo.HasAttribute(name) || (name.Equals("xmlns") && signedInfo.NamespaceURI != String.Empty))
{
continue;
}
XmlAttribute nsattrib = m_containingDocument.CreateAttribute(name);
nsattrib.Value = ((XmlNode)attrib).Value;
signedInfo.SetAttributeNode(nsattrib);
}
}
string strBaseUri = (m_containingDocument == null ? null : m_containingDocument.BaseURI);
XmlResolver resolver = (m_bResolverSet ? m_xmlResolver : new XmlSecureResolver(new XmlUrlResolver(), strBaseUri));
Stream canonicalizedSignedXml = tc.TransformToOctetStream(PreProcessElementInput(signedInfo, resolver, strBaseUri), resolver, strBaseUri);
// Calculate the hash
byte[] hashValue = macAlg.ComputeHash(canonicalizedSignedXml);
#if _DEBUG
if (debug)
{
Console.WriteLine("Computed canonicalized SignedInfo:");
Console.WriteLine(signedInfo.OuterXml);
Console.WriteLine("Computed Hash:");
Console.WriteLine(Convert.ToBase64String(hashValue));
Console.WriteLine("m_signature.SignatureValue:");
Console.WriteLine(Convert.ToBase64String(m_signature.SignatureValue));
}
#endif
for (int i = 0; i < m_signature.SignatureValue.Length; i++)
{
if (m_signature.SignatureValue[i] != hashValue[i])
{
return(false);
}
}
return(CheckDigestedReferences());
}
/// <include file='doc\SignedXml.uex' path='docs/doc[@for="SignedXml.CheckSignature1"]/*' />
public bool CheckSignature(AsymmetricAlgorithm key)
{
if (key == null)
{
throw new ArgumentNullException("key");
}
SignatureDescription signatureDescription = (SignatureDescription)CryptoConfig.CreateFromName(m_signature.SignedInfo.SignatureMethod);
if (signatureDescription == null)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_SignatureDescriptionNotCreated"));
}
// Let's see if the key corresponds with the SignatureMethod
Type ta = Type.GetType(signatureDescription.KeyAlgorithm);
Type tb = key.GetType();
if ((ta != tb) && !ta.IsSubclassOf(tb) && !tb.IsSubclassOf(ta))
{
// Signature method key mismatch
return(false);
}
// set up the canonicalizer & canonicalize SignedInfo
TransformChain tc = new TransformChain();
Transform c14nMethodTransform = (Transform)CryptoConfig.CreateFromName(SignedInfo.CanonicalizationMethod);
if (c14nMethodTransform == null)
{
throw new CryptographicException(String.Format(SecurityResources.GetResourceString("Cryptography_Xml_CreateTransformFailed"), SignedInfo.CanonicalizationMethod));
}
tc.Add(c14nMethodTransform);
XmlElement signedInfo = SignedInfo.GetXml().Clone() as XmlElement;
// Add non default namespaces in scope
if (m_namespaces != null)
{
foreach (XmlNode attrib in m_namespaces)
{
string name = ((attrib.Prefix != String.Empty) ? attrib.Prefix + ":" + attrib.LocalName : attrib.LocalName);
// Skip the attribute if one with the same qualified name already exists
if (signedInfo.HasAttribute(name) || (name.Equals("xmlns") && signedInfo.NamespaceURI != String.Empty))
{
continue;
}
XmlAttribute nsattrib = m_containingDocument.CreateAttribute(name);
nsattrib.Value = ((XmlNode)attrib).Value;
signedInfo.SetAttributeNode(nsattrib);
}
}
string strBaseUri = (m_containingDocument == null ? null : m_containingDocument.BaseURI);
XmlResolver resolver = (m_bResolverSet ? m_xmlResolver : new XmlSecureResolver(new XmlUrlResolver(), strBaseUri));
Stream canonicalizedSignedXml = tc.TransformToOctetStream(PreProcessElementInput(signedInfo, resolver, strBaseUri), resolver, strBaseUri);
// calculate the hash
HashAlgorithm hashAlgorithm = signatureDescription.CreateDigest();
if (hashAlgorithm == null)
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Xml_CreateHashAlgorithmFailed"));
}
byte[] hashval = hashAlgorithm.ComputeHash(canonicalizedSignedXml);
// We can FINALLY generate the SignatureValue
#if _DEBUG
if (debug)
{
Console.WriteLine("Computed canonicalized SignedInfo:");
Console.WriteLine(signedInfo.OuterXml);
Console.WriteLine("Computed Hash:");
Console.WriteLine(Convert.ToBase64String(hashval));
Console.WriteLine("m_signature.SignatureValue:");
Console.WriteLine(Convert.ToBase64String(m_signature.SignatureValue));
}
#endif
AsymmetricSignatureDeformatter asymmetricSignatureDeformatter = signatureDescription.CreateDeformatter(key);
bool bRet = asymmetricSignatureDeformatter.VerifySignature(hashAlgorithm, m_signature.SignatureValue);
if (bRet != true)
{
#if _DEBUG
if (debug)
{
Console.WriteLine("Failed to verify the signature on SignedInfo.");
}
#endif
return(false);
}
// Now is the time to go through all the references and see if their
// DigestValue are good
return(CheckDigestedReferences());
}
//------------------------- Public Methods --------------------------
/// <include file='doc\Reference.uex' path='docs/doc[@for="Reference.AddTransform"]/*' />
public void AddTransform(Transform transform)
{
m_transformChain.Add(transform);
}