md5 hash string c# code example

Example 1: c# md5 string

public static string CreateMD5(string input)
{
        // Use input string to calculate MD5 hash
	using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
    {
    	byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);
		byte[] hashBytes = md5.ComputeHash(inputBytes);

		// Convert the byte array to hexadecimal string
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < hashBytes.Length; i++)
		{
			sb.Append(hashBytes[i].ToString("X2"));
		}
		return sb.ToString();
	}
}

Example 2: c# md5 hash file

private static string GetMD5HashFromFile(string fileName)
{
	using (var md5 = MD5.Create())
	{
    	using (var stream = File.OpenRead(fileName))
        {
        	return BitConverter.ToString(md5.ComputeHash(stream)).Replace("-", string.Empty);
       	}
	}
}