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@@ -20,15 +20,17 @@ B<openssl> B<ciphers>
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[B<-psk>]
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[B<-srp>]
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[B<-stdname>]
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[B<-convert name>]
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[B<-ciphersuites val>]
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[B<cipherlist>]
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[B<-convert> I<name>]
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[B<-ciphersuites> I<val>]
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[I<cipherlist>]
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=for openssl ifdef ssl3 tls1 tls1_1 tls1_2 tls1_3 psk srp
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=head1 DESCRIPTION
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The B<ciphers> command converts textual OpenSSL cipher lists into ordered
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SSL cipher preference lists. It can be used as a test tool to determine
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the appropriate cipherlist.
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This command converts textual OpenSSL cipher lists into
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ordered SSL cipher preference lists. It can be used as a test tool to
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determine the appropriate cipherlist.
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=head1 OPTIONS
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@@ -83,11 +85,11 @@ OpenSSL was built.
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Precede each cipher suite by its standard name.
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=item B<-convert name>
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=item B<-convert> I<name>
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Convert a standard cipher B<name> to its OpenSSL name.
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Convert a standard cipher I<name> to its OpenSSL name.
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=item B<-ciphersuites val>
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=item B<-ciphersuites> I<val>
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Sets the list of TLSv1.3 ciphersuites. This list will be combined with any
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TLSv1.2 and below ciphersuites that have been configured. The format for this
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@@ -145,8 +147,8 @@ will not moved to the end of the list.
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The cipher string B<@STRENGTH> can be used at any point to sort the current
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cipher list in order of encryption algorithm key length.
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The cipher string B<@SECLEVEL=n> can be used at any point to set the security
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level to B<n>, which should be a number between zero and five, inclusive.
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The cipher string B<@SECLEVEL>=I<n> can be used at any point to set the security
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level to I<n>, which should be a number between zero and five, inclusive.
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See L<SSL_CTX_set_security_level> for a description of what each level means.
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The cipher list can be prefixed with the B<DEFAULT> keyword, which enables
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@@ -510,7 +512,8 @@ e.g. DES-CBC3-SHA. In these cases, RSA authentication is used.
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=head2 GOST cipher suites from draft-chudov-cryptopro-cptls, extending TLS v1.0
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Note: these ciphers require an engine which including GOST cryptographic
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algorithms, such as the B<ccgost> engine, included in the OpenSSL distribution.
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algorithms, such as the B<gost> engine, which isn't part of the OpenSSL
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distribution.
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TLS_GOSTR341094_WITH_28147_CNT_IMIT GOST94-GOST89-GOST89
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TLS_GOSTR341001_WITH_28147_CNT_IMIT GOST2001-GOST89-GOST89
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@@ -774,7 +777,7 @@ L<ssl(7)>
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=head1 HISTORY
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The B<-V> option for the B<ciphers> command was added in OpenSSL 1.0.0.
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The B<-V> option was added in OpenSSL 1.0.0.
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The B<-stdname> is only available if OpenSSL is built with tracing enabled
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(B<enable-ssl-trace> argument to Configure) before OpenSSL 1.1.1.
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