Asymmetric encryption (RSA, ECC) in Cybersecurity - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the sentence to describe asymmetric encryption.

Cybersecurity

In asymmetric encryption, the [1] key is used to encrypt data.

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Aprivate

Bpublic

Cshared

Dsecret

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing the private key as the one used for encryption.

Thinking both keys are the same.

The public key is used to encrypt data in asymmetric encryption, while the private key is used to decrypt it.

2fill in blank

medium

Complete the sentence to explain RSA key generation.

Cybersecurity

RSA key generation involves selecting two large [1] numbers.

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Aprime

Beven

Ccomposite

Drandom

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing composite numbers instead of prime numbers.

Assuming any random number can be used.

RSA keys are generated by selecting two large prime numbers to create the public and private keys.

3fill in blank

hard

Fix the error in the explanation of ECC.

Cybersecurity

ECC uses [1] curves over finite fields for encryption.

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Aelliptic

Bcircular

Cparabolic

Dlinear

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing elliptic with circular or linear curves.

Not knowing the type of curve ECC uses.

ECC stands for Elliptic Curve Cryptography, which uses elliptic curves over finite fields.

4fill in blank

hard

Fill both blanks to complete the description of asymmetric encryption keys.

Cybersecurity

The [1] key is kept secret, while the [2] key is shared publicly.

Drag options to blanks, or click blank then click option'

Aprivate

Bpublic

Cshared

Dencrypted

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up which key is public and which is private.

Thinking both keys are shared.

In asymmetric encryption, the private key is kept secret by the owner, and the public key is shared with others.

5fill in blank

hard

Fill all three blanks to complete the RSA encryption formula.

Cybersecurity

Ciphertext = (Plaintext [1] PublicKey) [2] Modulus; Decryption uses [3] key.

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Araised to the power of

Bmod

Cprivate

Dmultiplied by

Attempts:

3 left

💡 Hint

Common Mistakes

Using multiplication instead of exponentiation.

Confusing which key is used for decryption.

RSA encryption raises the plaintext to the power of the public key exponent, then takes the modulus. Decryption uses the private key.