using (HMACSHA1 m = new HMACSHA1(Encoding.UTF8.GetBytes("AKIDZfbOA78asKUYBcXFrJD0a1ICvR98JM")))
{
var result = BitConverter.ToString(m.ComputeHash(Encoding.UTF8.GetBytes("1480932292;1481012292"))).Replace("-", "").ToLower();
textBox1.Text = result;
}
How to generate HMAC-SHA1 in C#?
原文：http://www.cnblogs.com/kzwrcom/p/6682295.html