[Tinyos-devel] PATCH for TinySec

[Naveen Sastry]

Irfan Acar pointed out a bug in my old CBCMAC.nc code and so I have a 
patch that I'd like to commit. Could someone please apply the following 
and check it into the repository (I've lost my write access) and send me 
a confirmation email?

Thanks!

cvs commit -m "Fix for mac bug reported by Irfan Acar.  Block sizes are 
8 bytes wide, so we should pack the block full before running the cipher."


RCS file: /cvsroot/tinyos/tinyos-1.x/tos/lib/TinySec/CBCMAC.nc,v
retrieving revision 1.2
diff -u -r1.2 CBCMAC.nc
--- CBCMAC.nc   7 Oct 2003 21:46:22 -0000       1.2
+++ CBCMAC.nc   7 Jul 2006 17:41:52 -0000
@@ -155,7 +155,7 @@
        for (i = 0; i < msgLen; i++) {
          // unroll
          partial[pos++] ^= msg[i];
-        if (pos == 7) {
+        if (pos == 8) {
            if (!call BlockCipher.encrypt (&context->cc, partial, 
partial)) {
              return FAIL;
            }