Question

Lenstra’s method is an effective subexponential algorithm with applications in this field and involves computing points on an elliptic curve over a finite field. (10[1])Diffie and Hellman name a protocol in this field that is used (10[1])to perform (10[1])“exchanges” over a channel. This field relies on “hardness” assumptions (10[1])such as the discrete (10[1])logarithm problem. So-called “primitives” like the hash SHA-1 are used as the basis for systems (10[1])in this field. A public key and a (10[1])private key are used in an algorithm in this field that relies on the difficulty of factoring large numbers, the RSA algorithm. For 10 points, name this branch of computer science that develops secure (10[1])communication methods. ■END■

ANSWER: cryptography [or cryptology; accept encryption or RSA encryption; accept elliptic curve cryptography or public-key cryptography; prompt on cybersecurity or mathematics or number theory; prompt on computer science or CS until read]
<Other Science>
= Average correct buzz position

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Buzzes

PlayerTeamOpponentBuzz PositionValue
Stephen Barstys (UG)Michigan B (UG)Ohio State A (UG) 2310
Thomas ChenMichigan C Ohio State B (DII) 3510
Dennis Yang (DII)Michigan A (UG) West Virginia B (UG) 3710
Henry Nonnemaker (DII)CWRU A (UG) Jefferson County Scholars (DII)4710
Mohamed Musa (DII)Ohio State C (DII) CWRU B (DII) 5110
Yuki Brown (DII)Miami B (UG) West Virginia A (UG) 6610
Reed Sexton (UG)Michigan D (UG)CWRU C (UG)7410
Daniel Luebs (DII)Michigan State B Miami C (DII) 10810

Summary

2024 ACF Fall at CornellfallY10100%0%20%69.10
2024 ACF Fall at Ohio StatefallY8100%0%0%55.13
2024 ACF Fall at WashingtonfallY1100%0%0%23.00
2024 ACF Fall at GeorgiafallY12100%0%0%66.08
2024 ACF Fall at North CarolinafallY9100%0%11%76.11
2024 ACF Fall at Claremont CollegesfallY5100%0%0%44.80
2024 ACF Fall at RutgersfallY8100%0%0%47.75
2024 ACF Fall at IllinoisfallY9100%0%11%59.44