                  <span class="token keyword">return</span> theNKey<span class="token punctuation">.</span><span class="token function">sign</span><span class="token punctuation">(</span>nonce<span class="token punctuation">)</span><span class="token punctuation">;</span>
                    <span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span><span class="token class-name">GeneralSecurityException</span><span class="token operator">|</spa