NuGet.CryptoHashProvider.CalculateHash C# (CSharp) Method

        public byte[] CalculateHash(byte[] data)
        {
            using (var hashAlgorithm = GetHashAlgorithm())
            {
                return hashAlgorithm.ComputeHash(data);
            }
        }

 public static string GetHash(this IPackage package, CryptoHashProvider hashProvider)
 {
     using (Stream stream = package.GetStream())
     {
         return(Convert.ToBase64String(hashProvider.CalculateHash(stream)));
     }
 }