- (djm) More makefile infrastructre for smartcard support, also based
on Ben's work
diff --git a/README.smartcard b/README.smartcard
new file mode 100644
index 0000000..499dc8e
--- /dev/null
+++ b/README.smartcard
@@ -0,0 +1,69 @@
+How to use smartcards with OpenSSH?
+
+OpenSSH contains experimental support for authentication using
+Cyberflex smartcards and TODOS card readers. To enable this you
+need to:
+
+(1) install sectok
+
+ $ cd /usr/src/lib/libsectok
+ $ make obj depend all install includes
+ $ cd /usr/src/usr.bin/sectok
+ $ make obj depend all install
+
+(2) enable SMARTCARD support in OpenSSH:
+
+ $ vi /usr/src/usr.bin/ssh/Makefile.inc
+ and uncomment
+ CFLAGS+= -DSMARTCARD
+ LDADD+= -lsectok
+
+(3) load the Java Cardlet to the Cyberflex card:
+
+ $ sectok
+ sectok> login -d
+ sectok> jload /usr/libdata/ssh/Ssh.bin
+ sectok> quit
+
+(4) load a RSA key to the card:
+
+ please don't use your production RSA keys, since
+ with the current version of sectok/ssh-keygen
+ the private key file is still readable
+
+ $ ssh-keygen -f /path/to/rsakey -U 1
+ (where 1 is the reader number, you can also try 0)
+
+ In spite of the name, this does not generate a key.
+ It just loads an already existing key on to the card.
+
+(5) optional:
+
+ Change the card password so that only you can
+ read the private key:
+
+ $ sectok
+ sectok> login -d
+ sectok> setpass
+ sectok> quit
+
+ This prevents reading the key but not use of the
+ key by the card applet.
+
+ Do not forget the passphrase. There is no way to
+ recover if you do.
+
+ IMPORTANT WARNING: If you attempt to login with the
+ wrong passphrase three times in a row, you will
+ destroy your card.
+
+(6) tell the ssh client to use the card reader:
+
+ $ ssh -I 1 otherhost
+
+(7) or tell the agent (don't forget to restart) to use the smartcard:
+
+ $ ssh-add -s 1
+
+-markus,
+Tue Jul 17 23:54:51 CEST 2001