Simply hash a file in C#

gistfile1.cs

using System.IO;
using System.Security.Cryptography;

//Example: Hash("myfile.txt", "SHA-512");
public string Hash(string inputFile, string algorithm)
{
	HashAlgorithm hash = HashAlgorithm.Create (algorithm);
	FileStream fileStream = File.OpenRead (inputFile);
	byte[] hashBytes = hash.ComputeHash (fileStream);
	return Convert.ToBase64String (hashBytes);
}