[B<-new>]
[B<-rand file(s)>]
[B<-newkey rsa:bits>]
-[B<-newkey dsa:file>]
+[B<-newkey alg:file>]
[B<-nodes>]
[B<-key filename>]
[B<-keyform PEM|DER>]
[B<-keyout filename>]
-[B<-[md5|sha1|md2|mdc2]>]
+[B<-keygen_engine id>]
+[B<-[digest]>]
[B<-config filename>]
-[B<-subj arg>]
[B<-multivalue-rdn>]
[B<-x509>]
[B<-days n>]
[B<-set_serial n>]
[B<-asn1-kludge>]
+[B<-no-asn1-kludge>]
[B<-newhdr>]
[B<-extensions section>]
[B<-reqexts section>]
[B<-utf8>]
[B<-nameopt>]
+[B<-reqopt>]
+[B<-subject>]
+[B<-subj arg>]
[B<-batch>]
[B<-verbose>]
[B<-engine id>]
prints out the certificate request in text form.
+=item B<-subject>
+
+prints out the request subject (or certificate subject if B<-x509> is
+specified)
+
=item B<-pubkey>
outputs the public key.
If the B<-key> option is not used it will generate a new RSA private
key using information specified in the configuration file.
+=item B<-subj arg>
+
+Replaces subject field of input request with specified data and outputs
+modified request. The arg must be formatted as
+I</type0=value0/type1=value1/type2=...>,
+characters may be escaped by \ (backslash), no spaces are skipped.
+
=item B<-rand file(s)>
a file or files containing random data used to seed the random number
=item B<-newkey arg>
this option creates a new certificate request and a new private
-key. The argument takes one of two forms. B<rsa:nbits>, where
+key. The argument takes one of several forms. B<rsa:nbits>, where
B<nbits> is the number of bits, generates an RSA key B<nbits>
-in size. B<dsa:filename> generates a DSA key using the parameters
-in the file B<filename>.
+in size. If B<nbits> is omitted, i.e. B<-newkey rsa> specified,
+the default key size, specified in the configuration file is used.
+
+All other algorithms support the B<-newkey alg:file> form, where file may be
+an algorithm parameter file, created by the B<genpkey -genparam> command
+or and X.509 certificate for a key with appropriate algorithm.
+
+B<param:file> generates a key using the parameter file or certificate B<file>,
+the algorithm is determined by the parameters. B<algname:file> use algorithm
+B<algname> and parameter file B<file>: the two algorithms must match or an
+error occurs. B<algname> just uses algorithm B<algname>, and parameters,
+if necessary should be specified via B<-pkeyopt> parameter.
+
+B<dsa:filename> generates a DSA key using the parameters
+in the file B<filename>. B<ec:filename> generates EC key (usable both with
+ECDSA or ECDH algorithms), B<gost2001:filename> generates GOST R
+34.10-2001 key (requires B<ccgost> engine configured in the configuration
+file). If just B<gost2001> is specified a parameter set should be
+specified by B<-pkeyopt paramset:X>
+
+
+=item B<-pkeyopt opt:value>
+
+set the public key algorithm option B<opt> to B<value>. The precise set of
+options supported depends on the public key algorithm used and its
+implementation. See B<KEY GENERATION OPTIONS> in the B<genpkey> manual page
+for more details.
=item B<-key filename>
if this option is specified then if a private key is created it
will not be encrypted.
-=item B<-[md5|sha1|md2|mdc2]>
+=item B<-[digest]>
+
+this specifies the message digest to sign the request with (such as
+B<-md5>, B<-sha1>). This overrides the digest algorithm specified in
+the configuration file.
-this specifies the message digest to sign the request with. This
-overrides the digest algorithm specified in the configuration file.
-This option is ignored for DSA requests: they always use SHA1.
+Some public key algorithms may override this choice. For instance, DSA
+signatures always use SHA1, GOST R 34.10 signatures always use
+GOST R 34.11-94 (B<-md_gost94>).
=item B<-config filename>
request. This is typically used to generate a test certificate or
a self signed root CA. The extensions added to the certificate
(if any) are specified in the configuration file. Unless specified
-using the B<set_serial> option B<0> will be used for the serial
-number.
+using the B<set_serial> option, a large random number will be used for
+the serial number.
=item B<-days n>
commas. Alternatively the B<-nameopt> switch may be used more than once to
set multiple options. See the L<x509(1)|x509(1)> manual page for details.
+=item B<-reqopt>
+
+customise the output format used with B<-text>. The B<option> argument can be
+a single option or multiple options separated by commas.
+
+See discussion of the B<-certopt> parameter in the L<B<x509>|x509(1)>
+command.
+
+
=item B<-asn1-kludge>
by default the B<req> command outputs certificate requests containing
It should be noted that very few CAs still require the use of this option.
+=item B<-no-asn1-kludge>
+
+Reverses effect of B<-asn1-kludge>
+
=item B<-newhdr>
-Adds the word B<NEW> to the PEM file header and footer lines on the outputed
+Adds the word B<NEW> to the PEM file header and footer lines on the outputted
request. Some software (Netscape certificate server) and some CAs need this.
=item B<-batch>
=item B<-engine id>
-specifying an engine (by it's unique B<id> string) will cause B<req>
+specifying an engine (by its unique B<id> string) will cause B<req>
to attempt to obtain a functional reference to the specified engine,
thus initialising it if needed. The engine will then be set as the default
for all available algorithms.
+=item B<-keygen_engine id>
+
+specifies an engine (by its unique B<id> string) which would be used
+for key generation operations.
+
=back
=head1 CONFIGURATION FILE FORMAT
this specifies the configuration file section containing a list of
extensions to add to the certificate request. It can be overridden
-by the B<-reqexts> command line switch.
+by the B<-reqexts> command line switch. See the
+L<x509v3_config(5)|x509v3_config(5)> manual page for details of the
+extension section format.
=item B<x509_extensions>
Create a private key and then generate a certificate request from it:
- openssl genrsa -out key.pem 1024
+ openssl genrsa -out key.pem 2048
openssl req -new -key key.pem -out req.pem
The same but just using req:
- openssl req -newkey rsa:1024 -keyout key.pem -out req.pem
+ openssl req -newkey rsa:2048 -keyout key.pem -out req.pem
Generate a self signed root certificate:
- openssl req -x509 -newkey rsa:1024 -keyout key.pem -out req.pem
+ openssl req -x509 -newkey rsa:2048 -keyout key.pem -out req.pem
Example of a file pointed to by the B<oid_file> option:
Sample configuration file prompting for field values:
[ req ]
- default_bits = 1024
+ default_bits = 2048
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
attributes = req_attributes
- x509_extensions = v3_ca
+ req_extensions = v3_ca
dirstring_type = nobmp
RANDFILE = $ENV::HOME/.rnd
[ req ]
- default_bits = 1024
+ default_bits = 2048
default_keyfile = keyfile.pem
distinguished_name = req_distinguished_name
attributes = req_attributes
=head1 SEE ALSO
L<x509(1)|x509(1)>, L<ca(1)|ca(1)>, L<genrsa(1)|genrsa(1)>,
-L<gendsa(1)|gendsa(1)>, L<config(5)|config(5)>
+L<gendsa(1)|gendsa(1)>, L<config(5)|config(5)>,
+L<x509v3_config(5)|x509v3_config(5)>
=cut
projects / openssl.git / blobdiff