GISF: GIAC Information Security FundamentalsDemo

By GIAC · Question Mode

QuestionQ20

Foundations of Cryptography and Digital Trust

Which two of the following cryptography methods does the NTFS Encrypting File System (EFS) use to encrypt data stored on a disk on a per-file basis?

Choose two
  • A Public key
  • B Digital certificates
  • C Twofish
  • D RSA
Explanation

EFS uses public-key cryptography together with EFS digital certificates. It encrypts file contents with a generated file-encryption key, then encrypts copies of that key with the public keys associated with authorized users’ or recovery agents’ certificates.

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