ryptographic algorithms.</p>

<h1 id="RETURN-VALUES">RETURN VALUES</h1>

<p>All these functions return the calculated key or parameter, or NULL on error.</p>

<h1 id="SEE-ALSO">SEE ALSO</h1>

<p><a href="../man1/openssl-srp.html">openssl-srp(1)</a>, <a href="../man3/SRP_VBASE_new.html">SRP_VBASE_new(3)</a>, <a href="../man3/SRP_user_pwd_new.html">SRP_user_pwd_new(3)</a></p>

<h1 id="HISTORY">HISTORY</h1>

<p>SRP_Calc_B_ex, SRP_Calc_u_ex, SRP_Calc_client_key_ex and SRP_Calc_x_ex were introduced in OpenSSL 3.