FCoDS Final

What does RSA stand for?

• Rivest-Shamir-Adleman
• Random-Symmetric-Algorithm
• Real-Security-Algorithm
• Rivest-Symmetric-Algorithm

What is the primary purpose of RSA in cryptography?

• Key management
• Public-key encryption
• Hashing
• Data compression

What type of keys are generated in RSA?

• Symmetric keys
• Private keys only
• Public and private key pair
• Session keys

What is the role of BN_new() in the OpenSSL library?

• Deletes a BIGNUM variable
• Initializes a BIGNUM variable
• Multiplies two numbers
• Generates a random prime number

What is the purpose of the private key in RSA?

• Encrypt data
• Verify digital signatures
• Decrypt data
• Generate a random number

What is the output of the BN_mod_exp() function in OpenSSL?

• a + b mod n
• a * b mod n
• a^b mod n
• None of the above

What is the primary function of Euler's totient function in RSA?

• To encrypt messages
• To determine the public key
• To calculate the number of integers relatively prime to n
• To verify digital signatures

How is modular arithmetic essential in RSA?

• It enables random number generation
• It ensures efficient key exchange
• It allows encryption and decryption calculations
• It validates digital signatures

What is the length extension attack?

• Altering the hash function to extend its bit length
• Generating a valid hash for extended messages
• Modifying input to increase hash size
• Combining two hash functions for a longer output

Which data type is used in OpenSSL for handling large numbers in RSA?

• BIGINTEGER
• BN_CTX
• BIGNUM
• BN_DECIMAL