Which of the following is a hardware based encryption device?

A.
EFS

B.
TrueCrypt

C.
TPM

D.
SLE

Explanation:
Trusted Platform Module (TPM) is a hardware-based encryption solution that is embedded in the
system’s motherboard and is enabled or disable in BIOS. It helps with hash key generation and stores
cryptographic keys, passwords, or certificates.
Incorrect Answers:
A: Encrypting File System (EFS) is a software-based encryptions solution that is used to encrypt files or
entire volumes in a Windows computer. It is not a hardware-based encryption solution.B: TrueCrypt is an open source software-based encryption solution.
D: SLE (Single Loss Expectancy) is a risk management concept that measures the potential dollar value
loss from a single risk-realization incident. It is not related to cryptography.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 5-7, 237, 290