[B<-passin arg>]
[B<-out filename>]
[B<-passout arg>]
-[B<-sgckey>]
+[B<-aes128>]
+[B<-aes192>]
+[B<-aes256>]
+[B<-camellia128>]
+[B<-camellia192>]
+[B<-camellia256>]
[B<-des>]
[B<-des3>]
[B<-idea>]
[B<-check>]
[B<-pubin>]
[B<-pubout>]
+[B<-RSAPublicKey_in>]
+[B<-RSAPublicKey_out>]
+[B<-engine id>]
=head1 DESCRIPTION
=item B<-passin arg>
the input file password source. For more information about the format of B<arg>
-see the B<PASS PHRASE ARGUMENTS> section in L<openssl(1)|openssl(1)>.
+see the B<PASS PHRASE ARGUMENTS> section in L<openssl(1)>.
=item B<-out filename>
=item B<-passout password>
the output file password source. For more information about the format of B<arg>
-see the B<PASS PHRASE ARGUMENTS> section in L<openssl(1)|openssl(1)>.
+see the B<PASS PHRASE ARGUMENTS> section in L<openssl(1)>.
-=item B<-sgckey>
+=item B<-aes128|-aes192|-aes256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea>
-use the modified NET algorithm used with some versions of Microsoft IIS and SGC
-keys.
-
-=item B<-des|-des3|-idea>
-
-These options encrypt the private key with the DES, triple DES, or the
-IDEA ciphers respectively before outputting it. A pass phrase is prompted for.
+These options encrypt the private key with the specified
+cipher before outputting it. A pass phrase is prompted for.
If none of these options is specified the key is written in plain text. This
means that using the B<rsa> utility to read in an encrypted key with no
encryption option can be used to remove the pass phrase from a key, or by
key will be output instead. This option is automatically set if
the input is a public key.
+=item B<-RSAPublicKey_in>, B<-RSAPublicKey_out>
+
+like B<-pubin> and B<-pubout> except B<RSAPublicKey> format is used instead.
+
+=item B<-engine id>
+
+specifying an engine (by its unique B<id> string) will cause B<rsa>
+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.
+
=back
=head1 NOTES
-----BEGIN PUBLIC KEY-----
-----END PUBLIC KEY-----
+The PEM B<RSAPublicKey> format uses the header and footer lines:
+
+ -----BEGIN RSA PUBLIC KEY-----
+ -----END RSA PUBLIC KEY-----
+
The B<NET> form is a format compatible with older Netscape servers
and Microsoft IIS .key files, this uses unsalted RC4 for its encryption.
It is not very secure and so should only be used when necessary.
and look for the string "private-key", then trace back to the byte
sequence 0x30, 0x82 (this is an ASN1 SEQUENCE). Copy all the data
from this point onwards to another file and use that as the input
-to the B<rsa> utility with the B<-inform NET> option. If you get
-an error after entering the password try the B<-sgckey> option.
+to the B<rsa> utility with the B<-inform NET> option.
=head1 EXAMPLES
openssl rsa -in key.pem -pubout -out pubkey.pem
+Output the public part of a private key in B<RSAPublicKey> format:
+
+ openssl rsa -in key.pem -RSAPublicKey_out -out pubkey.pem
+
=head1 BUGS
The command line password arguments don't currently work with
=head1 SEE ALSO
-L<pkcs8(1)|pkcs8(1)>, L<dsa(1)|dsa(1)>, L<genrsa(1)|genrsa(1)>,
-L<gendsa(1)|gendsa(1)>
+L<pkcs8(1)>, L<dsa(1)>, L<genrsa(1)>,
+L<gendsa(1)>
=cut