.NET Framework Work with SHA1 in C# #Generate SHA1 checksum of a file
Example
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));
}
}
