Audit-based intrusion detection depends on data in ____.

External documentation:

a. Provides communication to the user. b. Is unnecessary. c. Provides communication and reminders to the programmer. d. None of the above.

Elliptic curve arithmetic can be used to develop a variety of elliptic curve cryptography schemes, including key exchange, encryption, and ___________ .

Fill in the blank(s) with the appropriate word(s).