=head1 NAME
+openssl-req,
req - PKCS#10 certificate request and certificate generating utility
=head1 SYNOPSIS
[B<-keyform PEM|DER>]
[B<-keyout filename>]
[B<-keygen_engine id>]
-[B<-[digest]>]
+[B<-I<digest>>]
[B<-config filename>]
[B<-multivalue-rdn>]
[B<-x509>]
=item B<-outform DER|PEM>
-This specifies the output format, the options have the same meaning as the
-B<-inform> option.
+This specifies the output format, the options have the same meaning and default
+as the B<-inform> option.
=item B<-in filename>
If this option is specified then if a private key is created it
will not be encrypted.
-=item B<-[digest]>
+=item B<-I<digest>>
This specifies the message digest to sign the request.
Any digest supported by the OpenSSL B<dgst> command can be used.
=item B<-days n>
When the B<-x509> option is being used this specifies the number of
-days to certify the certificate for. The default is 30 days.
+days to certify the certificate for, otherwise it is ignored. B<n> should
+be a positive integer. The default is 30 days.
=item B<-set_serial n>