Systems Security Certified Practitioner – SSCP – Question0669 - Systems Security Certified Practitioner

Where parties do not have a shared secret and large quantities of sensitive information must be passed, the most efficient means of transferring information is to use Hybrid Encryption Methods. What does this mean?

A. Use of public key encryption to secure a secret key, and message encryption using the secret key.
B. Use of the recipient's public key for encryption and decryption based on the recipient's private key.
C. Use of software encryption assisted by a hardware encryption accelerator.
D. Use of elliptic curve encryption.

Correct Answer: A

Explanation:

A Public Key is also known as an asymmetric algorithm and the use of a secret key would be a symmetric algorithm.
The following answers are incorrect:
Use of the recipient’s public key for encryption and decryption based on the recipient’s private key. Is incorrect this would be known as an asymmetric algorithm. Use of software encryption assisted by a hardware encryption accelerator. This is incorrect, it is a distractor. Use of Elliptic Curve Encryption. Is incorrect this would use an asymmetric algorithm.