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<div class="moz-cite-prefix">On 3/25/2022 12:07 PM, Michael StJohns
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:bc2090fe-b405-4b8a-ad84-e504215dd8cf@comcast.net">
<blockquote type="cite" style="color: #007cff;">AFAIK, there is
still no support for using named curves to construct an EC key.
Names curves are MANDATORY in JOSE/CODE.
<br>
</blockquote>
<br>
Use AlgorithmParameterGenerator with ECGenParameterSpec. Works
like a charm.
</blockquote>
<p><br>
</p>
<p>Sorry - Got that slightly wrong. Use this instead:</p>
<p>
<blockquote type="cite">
<pre class="java"><span><span><span> AlgorithmParameters parameters = AlgorithmParameters.getInstance(</span></span><span><span class="token-string">"EC"</span></span><span><span>, </span></span><span><span class="token-string">"SunEC"</span></span><span><span>);
</span></span></span><span><span><span> parameters.init(</span></span><span><span class="token-keyword">new</span></span><span><span> </span></span><span><span class="HovercardTrigger code-tag must"><a class="QueryLink" href="https://www.tabnine.com/code/java/methods/java.security.spec.ECGenParameterSpec/%3Cinit%3E">ECGenParameterSpec</a></span></span><span><span>(</span></span><span><span class="token-string">"secp128r1"</span></span><span><span>));
</span></span></span><span><span><span> ECParameterSpec ecParameters = parameters.getParameterSpec(ECParameterSpec.</span></span><span><span class="token-keyword">class</span></span><span><span>);
</span></span></span><span></span><span><span><span> ECPublicKeySpec pubKeySpec = </span></span><span><span class="token-keyword">new</span></span><span><span> ECPublicKeySpec(point, ecParameters);
</span></span></span><span></span><span><span><span> PublicKey key = KeyFactory.getInstance(</span></span><span><span class="token-string">"EC"</span></span><span><span>, </span></span><span><span class="token-string">"SunEC"</span></span><span><span>).generatePublic(pubKeySpec);</span></span></span></pre>
</blockquote>
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