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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>How can I get the nid from the curve name for a EC key in OpenSSL 3? I’m porting code from OpenSSL 1.0.2.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>I’m converting this:<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>ecc_curve_type = EC_GROUP_get_curve_name(EC_KEY_get0_group((</span><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:blue'>const</span><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'> EC_KEY *)eckey));<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:blue'>if</span><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>(ecc_curve_type == NID_undef)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>{</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>to<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>EVP_PKEY_get_utf8_string_param(pkey, OSSL_PKEY_PARAM_GROUP_NAME, curve_name, </span><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:blue'>sizeof</span><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>(curve_name), &out_len);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>ecc_curve_type = ossl_ec_curve_name2nid(curve_name);<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>but ossl_ec_curve_name2nid() is internal and it is not defined in /include/openssl/ec.h but in /include/crypto/ec.h<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Cascadia Mono";color:black'>Martin</span><o:p></o:p></p></div></body></html>