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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Experiment 9 - Understanding ElGamal public key cryptosystem

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Beginner

Intermediate

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What are the key components of the ElGamal public key cryptosystem?

a: Symmetric key and public key Explanation

Explanation

b: Private key and shared key Explanation

Explanation

c: Public key and private key Explanation

Explanation

d: Public key and session key Explanation

Explanation

In ElGamal, what is the public key composed of?

a: (g, x, p) Explanation

Explanation

b: (p, x, g) Explanation

Explanation

c: (g, p, y) Explanation

Explanation

d: (p, y, g) Explanation

Explanation

During ElGamal encryption, what does 'a' represent in the ciphertext (a, b)?

a: Random integer Explanation

Explanation

b: Shared secret Explanation

Explanation

c: Generator of the group Explanation

Explanation

d: Inverse of the private key Explanation

Explanation

ElGamal encryption uses:

a: The same key for encryption and decryption Explanation

Explanation

b: A public key for encryption and a private key for decryption Explanation

Explanation

c: Only a private key Explanation

Explanation

d: Only a public key Explanation

Explanation

The security of ElGamal relies on:

a: Factorization of small numbers Explanation

Explanation

b: The Discrete Logarithm Problem Explanation

Explanation

c: XOR operations Explanation

Explanation

d: Stream ciphers Explanation

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ElGamal is mainly used for:

a: Data compression Explanation

Explanation

b: Secure communication and digital signatures Explanation

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c: Image processing Explanation

Explanation

d: Random number generation Explanation

Explanation

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