[B<-CRL> I<filename>]
[B<-CRLform> B<DER>|B<PEM>]
[B<-crl_download>]
-[B<-key> I<filename>]
+[B<-key> I<filename>|I<uri>]
[B<-keyform> B<DER>|B<PEM>|B<P12>|B<ENGINE>]
[B<-pass> I<arg>]
[B<-chainCAfile> I<filename>]
[B<-reconnect>]
[B<-showcerts>]
[B<-prexit>]
+[B<-no-interactive>]
[B<-debug>]
[B<-trace>]
[B<-nocommands>]
[B<-msg>]
[B<-timeout>]
[B<-mtu> I<size>]
+[B<-no_etm>]
+[B<-no_ems>]
[B<-keymatexport> I<label>]
[B<-keymatexportlen> I<len>]
[B<-msgfile> I<filename>]
[B<-comp>]
[B<-no_comp>]
[B<-brief>]
+[B<-legacy_server_connect>]
[B<-allow_no_dhe_kex>]
[B<-sigalgs> I<sigalglist>]
[B<-curves> I<curvelist>]
[B<-srp_lateuser>]
[B<-srp_moregroups>]
[B<-srp_strength> I<number>]
+[B<-ktls>]
+[B<-tfo>]
{- $OpenSSL::safe::opt_name_synopsis -}
{- $OpenSSL::safe::opt_version_synopsis -}
{- $OpenSSL::safe::opt_x_synopsis -}
{- $OpenSSL::safe::opt_s_synopsis -}
{- $OpenSSL::safe::opt_r_synopsis -}
{- $OpenSSL::safe::opt_provider_synopsis -}
-{- $OpenSSL::safe::opt_engine_synopsis -}
-[B<-ssl_client_engine> I<id>]
+{- $OpenSSL::safe::opt_engine_synopsis -}[B<-ssl_client_engine> I<id>]
{- $OpenSSL::safe::opt_v_synopsis -}
[I<host>:I<port>]
-=for openssl ifdef engine ssl_client_engine ct noct ctlogfile
-
-=for openssl ifdef ssl3 unix 4 6 use_srtp status trace wdebug nextprotoneg
-
-=for openssl ifdef ssl3 tls1 tls1_1 tls1_2 tls1_3 dtls mtu dtls1 dtls1_2
-
-=for openssl ifdef sctp_label_bug sctp
-
-=for openssl ifdef srpuser srppass srp_lateuser srp_moregroups srp_strength
-
=head1 DESCRIPTION
This command implements a generic SSL/TLS client which
The proxy password source, used with the B<-proxy_user> flag.
For more information about the format of B<arg>
-see L<openssl(1)/Pass Phrase Options>.
+see L<openssl-passphrase-options(1)>.
=item B<-unix> I<path>
Suppresses sending of the SNI (Server Name Indication) extension in the
ClientHello message. Cannot be used in conjunction with the B<-servername> or
-<-dane_tlsa_domain> options.
+B<-dane_tlsa_domain> options.
-=item B<-cert> I<certname>
+=item B<-cert> I<filename>
The client certificate to use, if one is requested by the server.
The default is not to use a certificate.
=item B<-certform> B<DER>|B<PEM>|B<P12>
-The client certificate file format to use; the default is B<PEM>.
-This option has no effect and is retained for backward compatibility only.
+The client certificate file format to use; unspecified by default.
+See L<openssl-format-options(1)> for details.
=item B<-cert_chain>
-A file containing untrusted certificates to use when attempting to build the
+A file or URI of untrusted certificates to use when attempting to build the
certificate chain related to the certificate specified via the B<-cert> option.
+The input can be in PEM, DER, or PKCS#12 format.
=item B<-build_chain>
=item B<-CRLform> B<DER>|B<PEM>
-The CRL file format; the default is B<PEM>.
-See L<openssl(1)/Format Options> for details.
+The CRL file format; unspecified by default.
+See L<openssl-format-options(1)> for details.
=item B<-crl_download>
Download CRL from distribution points in the certificate.
-=item B<-key> I<keyfile>
+=item B<-key> I<filename>|I<uri>
-The client private key file to use.
+The client private key to use.
If not specified then the certificate file will be used to read also the key.
=item B<-keyform> B<DER>|B<PEM>|B<P12>|B<ENGINE>
-The key format; the default is B<PEM>.
-The only value with effect is B<ENGINE>; all others have become obsolete.
-See L<openssl(1)/Format Options> for details.
+The key format; unspecified by default.
+See L<openssl-format-options(1)> for details.
=item B<-pass> I<arg>
-the private key password source. For more information about the format of I<arg>
-see L<openssl(1)/Pass phrase options>.
+the private key and certificate file password source.
+For more information about the format of I<arg>
+see L<openssl-passphrase-options(1)>.
=item B<-verify> I<depth>
option is not always accurate because a connection might never have been
established.
+=item B<-no-interactive>
+
+This flag can be used to run the client in a non-interactive mode.
+
=item B<-state>
Prints out the SSL session states.
Set MTU of the link layer to the specified size.
+=item B<-no_etm>
+
+Disable Encrypt-then-MAC negotiation.
+
+=item B<-no_ems>
+
+Disable Extended master secret negotiation.
+
=item B<-keymatexport> I<label>
Export keying material using the specified label.
=item B<-trace>
-Show verbose trace output of protocol messages. OpenSSL needs to be compiled
-with B<enable-ssl-trace> for this option to work.
+Show verbose trace output of protocol messages.
=item B<-msgfile> I<filename>
=item B<-srpuser> I<value>
-Set the SRP username to the specified value.
+Set the SRP username to the specified value. This option is deprecated.
=item B<-srppass> I<value>
-Set the SRP password to the specified value.
+Set the SRP password to the specified value. This option is deprecated.
=item B<-srp_lateuser>
-SRP username for the second ClientHello message.
+SRP username for the second ClientHello message. This option is deprecated.
-=item B<-srp_moregroups>
+=item B<-srp_moregroups> This option is deprecated.
Tolerate other than the known B<g> and B<N> values.
=item B<-srp_strength> I<number>
-Set the minimal acceptable length, in bits, for B<N>.
+Set the minimal acceptable length, in bits, for B<N>. This option is
+deprecated.
+
+=item B<-ktls>
+
+Enable Kernel TLS for sending and receiving.
+This option was introduced in OpenSSL 3.1.0.
+Kernel TLS is off by default as of OpenSSL 3.1.0.
+
+=item B<-tfo>
+
+Enable creation of connections via TCP fast open (RFC7413).
{- $OpenSSL::safe::opt_version_item -}
{- $OpenSSL::safe::opt_engine_item -}
+{- output_off() if $disabled{"deprecated-3.0"}; "" -}
=item B<-ssl_client_engine> I<id>
Specify engine to be used for client certificate operations.
+{- output_on() if $disabled{"deprecated-3.0"}; "" -}
{- $OpenSSL::safe::opt_v_item -}
This command is a test tool and is designed to continue the
handshake after any certificate verification errors. As a result it will
-accept any certificate chain (trusted or not) sent by the peer. None test
+accept any certificate chain (trusted or not) sent by the peer. Non-test
applications should B<not> do this as it makes them vulnerable to a MITM
attack. This behaviour can be changed by with the B<-verify_return_error>
option: any verify errors are then returned aborting the handshake.
The B<-certform> option has become obsolete in OpenSSL 3.0.0 and has no effect.
-All B<-keyform> values except B<ENGINE> have become obsolete in OpenSSL 3.0.0
-and have no effect.
-
The B<-engine> option was deprecated in OpenSSL 3.0.
+The -tfo option was added in OpenSSL 3.1.
+
=head1 COPYRIGHT
-Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
projects / thirdparty / openssl.git / blobdiff