cipher - 2023 ARCADIA at Carleton University

Question

Security is the name of the game for modern computer systems. Answer the following about securing systems with cryptography, for 10 points each.

[10e] In cryptography, encryption transforms plaintext into “text” described by this word. This general word for methods of encryption names versions like the substitution, Playfair, and Atbash.

ANSWER: cipher [or cypher; accept ciphertext; accept substitution cipher; accept Playfair cipher; accept Atbash cipher]

[10h] This algorithm and its derivatives are the most common symmetric-key encryption algorithms. It has been approved by the NSA for protecting top secret information, and newer x86 processors have dedicated instructions for performing parts of this algorithm.

ANSWER: Advanced Encryption Standard [accept AES; accept Rijndael (“rain-dahl”)]

[10m] These objects are used by applications like web browsers and Secure Boot firmware to establish chains of trust using asymmetric-key cryptography. They consist centrally of a public key that has been signed by a trusted private key.

ANSWER: certificates

<RA, Other Science: Computer Science>

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Summary


2023 ARCADIA at UC Berkeley	Premiere	Y	2	20.00	100%	50%	50%
2023 ARCADIA at Carleton University	Premiere	Y	3	10.00	100%	0%	0%
2023 ARCADIA at Claremont Colleges	Premiere	Y	1	0.00	0%	0%	0%
2023 ARCADIA at Imperial	Imperial	Y	5	10.00	80%	20%	0%
2023 ARCADIA at Indiana	Premiere	Y	5	6.00	40%	20%	0%
2023 ARCADIA at RIT	Premiere	Y	2	10.00	50%	0%	50%
2023 ARCADIA at WUSTL	Premiere	Y	3	6.67	67%	0%	0%
2023 ARCADIA at Duke	Emory, Duke, Yale	N	4	5.00	50%	0%	0%
2023 ARCADIA at Emory	Emory, Duke, Yale	N	3	10.00	67%	33%	0%
2023 ARCADIA at Maryland	Maryland, Online	N	4	10.00	50%	50%	0%
2023 ARCADIA at Ohio State	Ohio State, Texas	N	3	6.67	33%	33%	0%
2023 ARCADIA Online	Maryland, Online	N	2	5.00	50%	0%	0%
2023 ARCADIA at Texas	Ohio State, Texas	N	3	6.67	67%	0%	0%

Data


Toronto	McDouble West-Carleton	10	10
Ottawa A	Waterloo	10	10
Ottawa B	Ottawa C	10	10