- djm@cvs.openbsd.org 2010/01/30 02:54:53

[openssh.git] / README.smartcard

diff --git a/README.smartcard b/README.smartcard
index 17bbde7210c24752024eb2a9ad44f4150a8a6969..fdf83ecab4c044918bcce6c7a155af5bfec7f660 100644 (file)
--- a/README.smartcard
+++ b/README.smartcard
@@ -1,42 +1,44 @@
 How to use smartcards with OpenSSH?
 
 OpenSSH contains experimental support for authentication using
-Cyberflex smartcards and TODOS card readers. 
+Cyberflex smartcards and TODOS card readers, in addition to the cards
+with PKCS#15 structure supported by OpenSC. To enable this you
+need to:
 
-WARNING: Smartcard support is still in development. Keyfile formats, etc
-are still subject to change.
+Using libsectok:
 
-To enable this you need to:
+(1) enable sectok support in OpenSSH:
 
-(1) install sectok or openSC
+       $ ./configure --with-sectok
 
-       Sources are instructions are available from
-       http://www.citi.umich.edu/projects/smartcard/sectok.html
+(2) If you have used a previous version of ssh with your card, you
+    must remove the old applet and keys.
 
-       or
-
-       http://www.opensc.org/
-
-(2) enable SMARTCARD support in OpenSSH:
-
-       $ ./configure --with-sectok[=/path/to/libsectok] [options]
-
-       or
-
-       $ ./configure --with-opensc[=/path/to/opensc] [options]
+       $ sectok
+       sectok> login -d
+       sectok> junload Ssh.bin
+       sectok> delete 0012
+       sectok> delete sh
+       sectok> quit
 
-(3) load the Java Cardlet to the Cyberflex card:
+(3) load the Java Cardlet to the Cyberflex card and set card passphrase:
 
        $ sectok
        sectok> login -d
        sectok> jload /usr/libdata/ssh/Ssh.bin
+       sectok> setpass
+       Enter new AUT0 passphrase:
+       Re-enter passphrase:
        sectok> quit
 
-(4) load a RSA key to the card:
+       Do not forget the passphrase.  There is no way to
+       recover if you do.
 
-       please don't use your production RSA keys, since
-       with the current version of sectok/ssh-keygen
-       the private key file is still readable
+       IMPORTANT WARNING: If you attempt to login with the
+       wrong passphrase three times in a row, you will
+       destroy your card.
+
+(4) load a RSA key to the card:
 
        $ ssh-keygen -f /path/to/rsakey -U 1
        (where 1 is the reader number, you can also try 0)
@@ -44,33 +46,48 @@ To enable this you need to:
        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:
+(5) Optional: If you don't want to use a card passphrase, change the
+    acl on the private key file:
 
        $ sectok
        sectok> login -d
-       sectok> setpass
+       sectok> acl 0012 world: w
+        world: w
+        AUT0: w inval
        sectok> quit
 
-       This prevents reading the key but not use of the
-       key by the card applet.
+       If you do this, anyone who has access to your card
+       can assume your identity.  This is not recommended.
 
-       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.
+Using OpenSC:
+
+(1) install OpenSC:
+
+       Sources and instructions are available from
+       http://www.opensc.org/
 
-(6) tell the ssh client to use the card reader:
+(2) enable OpenSC support in OpenSSH:
+
+       $ ./configure --with-opensc[=/path/to/opensc] [options]
+
+(3) load a RSA key to the card:
+
+       Not supported yet.
+
+
+Common operations:
+
+(1) 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:
+(2) 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
+
+$OpenBSD: README.smartcard,v 1.9 2003/11/21 11:57:02 djm Exp $