1 files changed, 40 insertions, 0 deletions
diff --git a/minikrebs/ImageBuilder/customfiles/usr/bin/easybox_keygen b/minikrebs/ImageBuilder/customfiles/usr/bin/easybox_keygen
new file mode 100755
index 00000000..e9a9beca
--- /dev/null
+++ b/minikrebs/ImageBuilder/customfiles/usr/bin/easybox_keygen
@@ -0,0 +1,40 @@
+#!/bin/sh
+#
+# easybox_keygen.sh (c) 2012 GPLv3
+#
+# www.wotan.cc
+# 
+
+MAC=$1
+
+# Take the last 2 Bytes of the MAC-Address (0B:EC), and convert it to decimal.
+
+take5=${MAC:12}
+last4=${take5/:/}
+
+# Fill up to 4 places with zeros, if necessary:
+deci=$(printf "%04d" "0x$last4" | sed 's/.*\(....\)/\1/;s/./& /g')
+#echo M4: ${deci[@]}
+#
+# The digits M9 to M12 are just the last digits (9.-12.) of the MAC:
+hexi=$(echo ${MAC:12:5} | sed 's/://;s/./& /g')
+#echo 'M4 (Hex): ' ${hexi[@]}
+# K1 = last byte of (d0 + d1 + h2 + h3)
+# K2 = last byte of (h0 + h1 + d2 + d3)
+c1=$(printf "%d + %d + %d + %d" ${deci:0:1} ${deci:2:1} 0x${hexi:4:1} 0x${hexi:6:1})
+c2=$(printf "%d + %d + %d + %d" 0x${hexi:0:1} 0x${hexi:2:1} ${deci:4:1} ${deci:6:1})
+K1=$((($c1)%16))
+K2=$((($c2)%16))
+#printf "K1: %x\n" $K1
+#printf "K2: %x\n" $K2
+X1=$((K1^${deci:6:1}))
+X2=$((K1^${deci:4:1}))
+X3=$((K1^${deci:2:1}))
+Y1=$((K2^0x${hexi:2:1}))
+Y2=$((K2^0x${hexi:4:1}))
+Y3=$((K2^0x${hexi:6:1}))
+Z1=$((0x${hexi:4:1}^${deci:6:1}))
+Z2=$((0x${hexi:6:1}^${deci:4:1}))
+Z3=$((K1^K2))
+printf "%x%x%x%x%x%x%x%x%x\n" $X1 $Y1 $Z1 $X2 $Y2 $Z2 $X3 $Y3 $Z3 | tr a-f A-F
+