first you add System.Security.Cryptography namespace to your project
public string GetSha1Hash(string filePath)
{
using (FileStream fs = File.OpenRead(filePath))
{
SHA1 sha = new SHA1Managed();
return BitConverter.ToString(sha.ComputeHash(fs));
...
public static string TextToHash(string text)
{
var sh = SHA1.Create();
var hash = new StringBuilder();
byte[] bytes = Encoding.UTF8.GetBytes(text);
byte[] b = sh.ComputeHash(bytes);
foreach (byte a in b)
{
var h = a.ToString(&...
