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3 cards from this section. Quick, good the night before a test.
What is public key cryptography?
Think about how public keys differ from private keys.
Name one advantage of public key cryptography over symmetric key cryptography.
Consider the challenges of key sharing.
What does RSA stand for?
Think about the creators of the RSA algorithm.
True or False: The private key in a public key system can be shared publicly.
Consider the consequences of sharing the private key.
If Alice selects two prime numbers, 61 and 53, calculate the modulus N and the totient φ(N).
Use the formula for totient: φ(N) = (p-1)(q-1).
Using the RSA algorithm, if e is chosen as 17, what can you say about choosing e in relation to φ(N)?
Factor φ(N) and determine coprimality.
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