[B<-help>]
[B<-inform> B<DER>|B<PEM>|B<P12>|B<ENGINE>]
[B<-outform> B<DER>|B<PEM>]
-[B<-in> I<filename>]
+[B<-in> I<filename>|I<uri>]
[B<-passin> I<arg>]
[B<-out> I<filename>]
[B<-passout> I<arg>]
When writing a private key, use the traditional PKCS#1 format
instead of the PKCS#8 format.
-=item B<-in> I<filename>
+=item B<-in> I<filename>|I<uri>
-This specifies the input filename to read a key from or standard input if this
+This specifies the input to read a key from or standard input if this
option is not specified. If the key is encrypted a pass phrase will be
prompted for.