Calculate file checksum using c#
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Security.Cryptography; using System.Text; using System.Threading.Tasks; namespace CheckSumTest { class Program { static void Main(string[] args) { string filePath = @"G:\Mahedee_Share\Created\23062014-1\FileDeployManager\FileDeployManager\Form1.cs"; string checksumMd5 = GetFileChecksum(filePath, Algorithms.MD5); string checksumSha1 = GetFileChecksum(filePath, Algorithms.SHA1); string checksumSha256 = GetFileChecksum(filePath, Algorithms.SHA256); string checksumSha384 = GetFileChecksum(filePath, Algorithms.SHA384); string checksumSha512 = GetFileChecksum(filePath, Algorithms.SHA512); string checksumRipemd160 = GetFileChecksum(filePath, Algorithms.RIPEMD160); Console.ReadKey(); } public static string GetFileChecksum(string filePath, HashAlgorithm algorithm) { using (var stream = new BufferedStream(File.OpenRead(filePath), 100000)) { byte[] hash = algorithm.ComputeHash(stream); return BitConverter.ToString(hash).Replace("-", String.Empty); } } } public static class Algorithms { public static readonly HashAlgorithm MD5 = new MD5CryptoServiceProvider(); public static readonly HashAlgorithm SHA1 = new SHA1Managed(); public static readonly HashAlgorithm SHA256 = new SHA256Managed(); public static readonly HashAlgorithm SHA384 = new SHA384Managed(); public static readonly HashAlgorithm SHA512 = new SHA512Managed(); public static readonly HashAlgorithm RIPEMD160 = new RIPEMD160Managed(); } }