Use of Smartcards in File Encryption - ESCRYPT

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ESOSI: Main Components User Interface Component Interface to smart card on client Graphical user interface Mount / unmount of directories Groups of users ... File Encryption Component Interface to filesystem on linux-client or file server Manages directory keys V j ... File Encryption “eCryptfs” Carries out file encryption with given V jArmin Cordel02/10/1112
ESOSI: Sharing of Directory Keys Secondary group of users Each of n members has share s kof V j t out of n members have to collaborate to reconstruct V j User smart card is used to decrypt each s k Purpose Availability of directory contents Avoiding use of emergency smart card Gives regular, but not “too easy” access for secondary group Collaborators / witnesses needed Logging User friendlyness ??Armin Cordel02/10/1113
Page 1 and 2: Use of Smart Cards for File Encrypt
Page 3 and 4: PW-Based Volume EncryptionUser ente
Page 5 and 6: File Encryption - Major Properties
Page 7 and 8: Functionality of Smart Card Smart c
Page 9 and 10: ESOSI: Groups of Userssmart card de
Page 11: File Encryption ESOSI: Main Compone
Page 15 and 16: ESOSI: Secret Sharing Messaging ESO
Page 17 and 18: References https://launchpad.net/ec

Use of Smartcards in File Encryption - ESCRYPT

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