A team is setting cryptoperiods and lists only key length and algorithm as inputs. Which three further factors does NIST SP 800-57 name? Choose three.

Answer: D. Personnel turnover among administrators and certificate authority staff.
A. The number of nodes sharing a common key and the number of copies of it.
C. The threat from new and disruptive technologies such as quantum computers.

Factors include mechanism strength, hardware or software embodiment, environment, staff turnover, data volume, the data's security life, re-keying method, key sharing and disruptive technology.

Source: NIST SP 800-57 Part 1 Rev. 5 (NIST) — SP 800-57 Part 1 Rev. 5 > 5.3.1 Factors Affecting Cryptoperiods