user87484: How to find Value N and K ? I have the values for R, S and Z. 
for example these: 
BigInteger R =("00d47ce4c025c35ec440bc81d99834a624875161a26bf56ef7fdc0f5d52f843ad1"));
BigInteger S =("0044e1ff2dfd8102cf7a47c21d5c9fd5701610d04953c6836596b4fe9dd2f53e3e"));
BigInteger Z =("00c0e2d0a89a348de88fda08211c70d1d7e52ccef2eb9459911bf977d587784c6e"));
BigInteger X  =("00c477f9f65c22cce20657faa5b2d1d8122336f851a508a1ed04e479c34985bf96"));

Now, how to get these:
BigInteger K =("007a1a7e52797fc8caaa435d2a4dace39158504bf204fbe19f14dbb427faee50ae"));
BigInteger N =("00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141")); 

How to get the values K and N ?
I am confused about how to calculate it, can somebody tell me how it is done?

user48884: k and n are not values that you calculate. k is randomly generated while n is predefined by the curve parameters.
n is the order of the curve G. It is defined by the curve parameters for the secp256k1 curve which are defined here: http://www.secg.org/sec2-v2.pdf. In those parameters, n = FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141.
k is a randomly generated integer that is used only once for a signature. It is known as the nonce and acts as a source of randomness. If the same k is used to sign two different messages with the same private key, the private key will be leaked.

87484: <p>How to find Value <code>N</code> and <code>K</code> ? I have the values for <code>R</code>, <code>S</code> and <code>Z</code>. </p>

<p>for example these: </p>

<pre><code>BigInteger R =("00d47ce4c025c35ec440bc81d99834a624875161a26bf56ef7fdc0f5d52f843ad1"));
BigInteger S =("0044e1ff2dfd8102cf7a47c21d5c9fd5701610d04953c6836596b4fe9dd2f53e3e"));
BigInteger Z =("00c0e2d0a89a348de88fda08211c70d1d7e52ccef2eb9459911bf977d587784c6e"));
BigInteger X  =("00c477f9f65c22cce20657faa5b2d1d8122336f851a508a1ed04e479c34985bf96"));
</code></pre>

<p>Now, how to get these:</p>

<pre><code>BigInteger K =("007a1a7e52797fc8caaa435d2a4dace39158504bf204fbe19f14dbb427faee50ae"));
BigInteger N =("00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141")); 
</code></pre>

<p>How to get the values <code>K</code> and <code>N</code> ?<br>
I am confused about how to calculate it, can somebody tell me how it is done?</p>
 48884: <p><code>k</code> and <code>n</code> are not values that you calculate. <code>k</code> is randomly generated while <code>n</code> is predefined by the curve parameters.</p>

<p><code>n</code> is the order of the curve <code>G.</code> It is defined by the curve parameters for the secp256k1 curve which are defined here: <a href="http://www.secg.org/sec2-v2.pdf" rel="nofollow noreferrer">http://www.secg.org/sec2-v2.pdf</a>. In those parameters, <code>n = FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141</code>.</p>

<p><code>k</code> is a randomly generated integer that is used only once for a signature. It is known as the nonce and acts as a source of randomness. If the same <code>k</code> is used to sign two different messages with the same private key, the private key will be leaked.</p>
