SafeGuard LAN Crypt Client - How is the DEK (Data Encryption Key) generated on the client?

  • ID dell'articolo: 106800
  • Aggiornato: 23 set 2010


Product
All SafeGuard LAN Crypt Client supported versions

IMPORTANT SafeGuard LAN Crypt Client version 3.13 and SafeGuard LAN Crypt Administration 3.30 retire on September 30th 2010. We recommend you update your version as soon as possible. For further information please contact your Sophos sales representative.

Client OS
Windows 7, Windows Vista, Windows XP

Question
How is the DEK (Data Encryption Key) generated on the client?

Answer
When a file is created which must be encrypted, LAN Crypt generates a DEK and stores the DEK encrypted with the KEK (Key Encryption Key) in the file header. (Note that KEK is defined by LAN Crypt security officers during administration and assigned to encryption rules). For the key generation we use a strong PRNG (pseudo random number generator). This is also used for generating the KEKs in the administration.




 
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