title: Different signature for each elliptic curve signature generation
body: <p>I am using elliptic curve for generating signature. The issue is it generates a different signature every time with the same key pair. I tried the Bouncy Castle libraries as well as <a href="https://msdn.microsoft.com/en-us/library/system.security.cryptography.ecdsa(v=vs.110).aspx" rel="nofollow noreferrer"><code>ECDsa</code></a>. The signature get verified with both, but I want the same signature every time I use the same key pair.</p>
  
  <p>What could possibly do to generate the same signature every time? Or is this not possible using elliptic curve?</p>