The syntax of B<value> is identical to B<-sigalgs>. If not set then
the value set for B<-sigalgs> will be used instead.
+=item B<-groups>
+
+This sets the supported groups. For clients, the groups are
+sent using the supported groups extension. For servers, it is used
+to determine which group to use. This setting affects groups used for both
+signatures and key exchange, if applicable. It also affects the preferred
+key_share sent by a client in a TLSv1.3 compatible connection.
+
+The B<value> argument is a colon separated list of groups. The group can be
+either the B<NIST> name (e.g. B<P-256>), some other commonly used name where
+applicable (e.g. B<X25519>) or an OpenSSL OID name (e.g B<prime256v1>). Group
+names are case sensitive. The list should be in order of preference with the
+most preferred group first. The first listed group will be the one used for a
+key_share by a TLSv1.3 client.
+
=item B<-curves>
-This sets the supported elliptic curves. For clients the curves are
-sent using the supported curves extension. For servers it is used
-to determine which curve to use. This setting affects curves used for both
-signatures and key exchange, if applicable.
+This is a synonym for the "-groups" command.
-The B<value> argument is a colon separated list of curves. The curve can be
-either the B<NIST> name (e.g. B<P-256>) or an OpenSSL OID name (e.g
-B<prime256v1>). Curve names are case sensitive.
=item B<-named_curve>
the appropriate context. This option is only supported if certificate
operations are permitted.
+=item B<-record_padding>
+
+Attempts to pad TLS 1.3 records so that they are a multiple of B<value> in
+length on send. A B<value> of 0 or 1 turns off padding. Otherwise, the
+B<value> must be >1 or <=16384.
+
+=item B<-no_renegotiation>
+
+Disables all attempts at renegotiation in TLSv1.2 and earlier, same as setting
+B<SSL_OP_NO_RENEGOTIATION>.
+
=item B<-min_protocol>, B<-max_protocol>
Sets the minimum and maximum supported protocol.
chains or verifying certificate chains. These options are only supported
if certificate operations are permitted.
+=item B<RequestCAFile>
+
+This option indicates a file containing a set of certificates in PEM form.
+The subject names of the certificates are sent to the peer in the
+B<certificate_authorities> extension for TLS 1.3 (in ClientHello or
+CertificateRequest) or in a certificate request for previous versions or
+TLS.
+
=item B<ServerInfoFile>
Attempts to use the file B<value> in the "serverinfo" extension using the
the appropriate context. This option is only supported if certificate
operations are permitted.
+=item B<RecordPadding>
+
+Attempts to pad TLS 1.3 records so that they are a multiple of B<value> in
+length on send. A B<value> of 0 or 1 turns off padding. Otherwise, the
+B<value> must be >1 or <=16384.
+
+=item B<NoRenegotiation>
+
+Disables all attempts at renegotiation in TLSv1.2 and earlier, same as setting
+B<SSL_OP_NO_RENEGOTIATION>.
+
=item B<SignatureAlgorithms>
This sets the supported signature algorithms for TLS v1.2. For clients this
The syntax of B<value> is identical to B<SignatureAlgorithms>. If not set then
the value set for B<SignatureAlgorithms> will be used instead.
-=item B<Curves>
+=item B<Groups>
+
+This sets the supported groups. For clients, the groups are
+sent using the supported groups extension. For servers, it is used
+to determine which group to use. This setting affects groups used for both
+signatures and key exchange, if applicable. It also affects the preferred
+key_share sent by a client in a TLSv1.3 compatible connection.
-This sets the supported elliptic curves. For clients the curves are
-sent using the supported curves extension. For servers it is used
-to determine which curve to use. This setting affects curves used for both
-signatures and key exchange, if applicable.
+The B<value> argument is a colon separated list of groups. The group can be
+either the B<NIST> name (e.g. B<P-256>), some other commonly used name where
+applicable (e.g. B<X25519>) or an OpenSSL OID name (e.g B<prime256v1>). Group
+names are case sensitive. The list should be in order of preference with the
+most preferred group first. The first listed group will be the one used for a
+key_share by a TLSv1.3 client.
+
+=item B<Curves>
-The B<value> argument is a colon separated list of curves. The curve can be
-either the B<NIST> name (e.g. B<P-256>) or an OpenSSL OID name (e.g
-B<prime256v1>). Curve names are case sensitive.
+This is a synonym for the "Groups" command.
=item B<MinProtocol>
SSLv3 is B<always> disabled and attempt to override this by the user are
ignored.
-By checking the return code of SSL_CTX_cmd() it is possible to query if a
-given B<cmd> is recognised, this is useful is SSL_CTX_cmd() values are
+By checking the return code of SSL_CONF_cmd() it is possible to query if a
+given B<cmd> is recognised, this is useful is SSL_CONF_cmd() values are
mixed with additional application specific operations.
-For example an application might call SSL_CTX_cmd() and if it returns
+For example an application might call SSL_CONF_cmd() and if it returns
-2 (unrecognised command) continue with processing of application specific
commands.
-Applications can also use SSL_CTX_cmd() to process command lines though the
-utility function SSL_CTX_cmd_argv() is normally used instead. One way
+Applications can also use SSL_CONF_cmd() to process command lines though the
+utility function SSL_CONF_cmd_argv() is normally used instead. One way
to do this is to set the prefix to an appropriate value using
SSL_CONF_CTX_set1_prefix(), pass the current argument to B<cmd> and the
following argument to B<value> (which may be NULL).
In this case if the return value is positive then it is used to skip that
-number of arguments as they have been processed by SSL_CTX_cmd(). If -2 is
+number of arguments as they have been processed by SSL_CONF_cmd(). If -2 is
returned then B<cmd> is not recognised and application specific arguments
can be checked instead. If -3 is returned a required argument is missing
and an error is indicated. If 0 is returned some other error occurred and
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