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--- himddownload-keystuff [2010/07/06 16:30] – megadiscman
+++ himddownload-keystuff [2010/07/06 22:02] – megadiscman
@@ Line 89: / Line 89: @@
 </code>
-===== Track MAC =====
+===== Track encryption =====
-added later.
+The track key-encryption-key (KEK) is stored encrypted by the EKB root key
+<code>
+$ rootkey1_12=f51ecb2a808f15fd542ef5123bcdbca4
+$ # calculate track key-encryption-key
+$ enctrackkey=d7c9cadc12b9ad99
+$ trackkey=`echo $enctrackkey | xxd -r -p | openssl enc -d -des-ede -iv 0 -K $rootkey1_12 -nopad | xxd -p`
+$ echo $trackkey
+e8ab6c3c32c35eb
+$ # calculate MAC
+$ contentid=010f50000004000000b792f6f9318c20fff1aad8
+$ trkentry="0001010000000000 $contentid 0000000000000000 01004400"
+$ mackey=`echo 0000000000000000 | xxd -r -p | openssl enc -des -iv 0 -K $trackkey -nopad | xxd -p`
+$ echo $trkentry | xxd -r -p | openssl enc -des-cbc -iv 0 -K $mackey -nopad | tail -c 8  | xxd -p
+f35336c5818d22b
+</code>