+ --identifier=IDENTIFIER Public key identifier\n\
+\n\
+ The public key identifier may be of the following format:\n\
+\n\
+ UN=<username>, HN=<hostname or IP>, RN=<real name>, E=<email>,\n\
+ O=<organization>, C=<country>\n\
+\n\
+ The UN and HN must be provided, the others are optional. If the\n\
+ --identifier option is not used an identifier will be created for\n\
+ the public key automatically.\n\
+\n\
+ Example identifier: \"UN=foobar, HN=foo.bar.com, RN=Foo T. Bar, \n\
+ E=foo@bar.com, C=FI\"\n\