internal override SecurityTimestamp ReadTimestamp(XmlDictionaryReader reader, string digestAlgorithm, SignatureResourcePool resourcePool)
{
bool canonicalize = digestAlgorithm != null && reader.CanCanonicalize;
HashStream hashStream = null;
reader.MoveToStartElement(XD.UtilityDictionary.Timestamp, XD.UtilityDictionary.Namespace);
if (canonicalize)
{
hashStream = resourcePool.TakeHashStream(digestAlgorithm);
reader.StartCanonicalization(hashStream, false, null);
}
string id = reader.GetAttribute(XD.UtilityDictionary.IdAttribute, XD.UtilityDictionary.Namespace);
reader.ReadStartElement();
reader.ReadStartElement(XD.UtilityDictionary.CreatedElement, XD.UtilityDictionary.Namespace);
DateTime creationTimeUtc = reader.ReadContentAsDateTime().ToUniversalTime();
reader.ReadEndElement();
DateTime expiryTimeUtc;
if (reader.IsStartElement(XD.UtilityDictionary.ExpiresElement, XD.UtilityDictionary.Namespace))
{
reader.ReadStartElement();
expiryTimeUtc = reader.ReadContentAsDateTime().ToUniversalTime();
reader.ReadEndElement();
}
else
{
expiryTimeUtc = SecurityUtils.MaxUtcDateTime;
}
reader.ReadEndElement();
byte[] digest;
if (canonicalize)
{
reader.EndCanonicalization();
digest = hashStream.FlushHashAndGetValue();
}
else
{
digest = null;
}
return(new SecurityTimestamp(creationTimeUtc, expiryTimeUtc, id, digestAlgorithm, digest));
}
internal abstract SecurityTimestamp ReadTimestamp(XmlDictionaryReader reader, string digestAlgorithm, SignatureResourcePool resourcePool);
