add readme_cr, chalresp test accepts challenge

[pam_pcsc_cr.git] / README_CR

diff --git a/README_CR b/README_CR
new file mode 100644 (file)
index 0000000..a55e916
--- /dev/null
+++ b/README_CR
@@ -0,0 +1,20 @@
+Adapted from Yubico's white paper on full disk encryption:
+
+user record:
+       userid
+       seqno
+       encrypted blob:
+               data:
+                       shared-secret
+                       payload
+                       crc
+               key:
+                       hmac-sha1:
+                               data:
+                                       userid
+                                       password
+                                       seqno
+                               key:
+                                       shared-secret
+
+