public static Stream GetTransformedStream(string filePath, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_TRANSFORM transform)
{
Stream stream = null;
if (transform == System.Deployment.Internal.Isolation.Manifest.CMS_HASH_TRANSFORM.CMS_HASH_TRANSFORM_MANIFESTINVARIANT)
{
PEStream stream2 = null;
try
{
stream2 = new PEStream(filePath, true);
stream2.ZeroOutOptionalHeaderCheckSum();
stream2.ZeroOutDefaultId1ManifestResource();
return(stream2);
}
finally
{
if ((stream2 != stream) && (stream2 != null))
{
stream2.Close();
}
}
}
if (transform != System.Deployment.Internal.Isolation.Manifest.CMS_HASH_TRANSFORM.CMS_HASH_TRANSFORM_IDENTITY)
{
throw new NotSupportedException(string.Format(CultureInfo.CurrentUICulture, Resources.GetString("Ex_TransformAlgorithmNotSupported"), new object[] { transform.ToString() }));
}
return(new FileStream(filePath, FileMode.Open, FileAccess.Read));
}
public Hash(byte[] digestValue, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_DIGESTMETHOD digestMethod, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_TRANSFORM transform)
{
if (digestValue == null)
{
throw new ArgumentException(Resources.GetString("Ex_HashNullDigestValue"));
}
this._digestValue = digestValue;
this._digestMethod = digestMethod;
this._transform = transform;
}
public Hash(byte[] digestValue, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_DIGESTMETHOD digestMethod, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_TRANSFORM transform)
{
if (digestValue == null)
{
throw new ArgumentException(Resources.GetString("Ex_HashNullDigestValue"));
}
this._digestValue = digestValue;
this._digestMethod = digestMethod;
this._transform = transform;
}
public static byte[] GenerateDigestValue(string filePath, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_DIGESTMETHOD digestMethod, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_TRANSFORM transform)
{
Stream inputStream = null;
byte[] buffer = null;
try
{
HashAlgorithm hashAlgorithm = GetHashAlgorithm(digestMethod);
inputStream = GetTransformedStream(filePath, transform);
buffer = hashAlgorithm.ComputeHash(inputStream);
}
finally
{
if (inputStream != null)
{
inputStream.Close();
}
}
return(buffer);
}
public void AddHash(byte[] digestValue, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_DIGESTMETHOD digestMethod, System.Deployment.Internal.Isolation.Manifest.CMS_HASH_TRANSFORM transform)
{
Hash hash = new Hash(digestValue, digestMethod, transform);
this._hashes.Add(hash);
}
