46-90

46.     Which conclusion is true for the encryption system on the Elliptic curve

• a.     The length of the code is equal to the length of the explicit text

• b.     Combine the above answers

• c.     Smaller lock length than RSA but secure

• d.     Computational Algorithms with Power Operations

47.     In a combined system of RSA and AES, the function of the encryption systems is

• a.     RSA Encrypt Messages, RSA Encrypt RSA Keys

• b.     AES 1st Encryption Message, 2nd RSA Encryption for Enhanced Security

• c.     RSA 1st Encrypt Messages, AES 2nd Encryption for Enhanced Security

• d.     AES Message Encryption, RSA AES Key Encryption

48.     Which conclusion is correct

• a.     The Merkle - Hellman code system has a small lock

• b.     The Merkle - Hellman code system has a trap door that is a super tank lock

• c.     The Merkle-Hellman code system has a trap door that is a public key

• d.     The Merkle-Hellman code system does not calculate inverse numbers

49.     The Merkle-Hellman code system does not calculate inverse numbers

• a.     The ECC encryption system has a smaller key length than RSA

• b.     The Elgamal encryption system always has the phenomenon of duplicate ciphers

• c.     The RSA encryption system always exists in the phenomenon of duplicate ciphers

• d.     The Merkle-Hellman encryption system has a key length of 1

50.     Which conclusion is wrong

• a.     The Elgamal encryption system for ciphers that are larger than the spec

• b.     Elgamal encryption system for ciphers that are twice the size of the spec

• c.     The Elgamal coding system is based on the difficulty of discrete logarithm problems

• d.     Elgamal encryption system is widely used

51.     Which conclusion is wrong

• a.     The Merkle - Hellman code system is based on the difficulty of the problem of placing objects in the box

• b.     The Merkle-Hellman code system is not widely used

• c.     The Merkle-Hellman code system has a small key length

• d.     The Merkle-Hellman code system has low safety

52.     Which conclusion is wrong with the ECC key system

• a.     ECC with lock is the point on the Elliptic curve

• b.     ECC performs calculations with points on the Elliptic curve

• c.     ECC has a smaller key size than RSA

• d.     ECC is easy to deploy and install

53.     Which conclusion is wrong

• a.     The RSA code system is widely used in the Internet

• b.     ECC ciphers are applied in the lock agreement model

• c.     The Merkle-Hellman code system is not widely used in the Internet

• d.     The Merkle - Hellman code system is widely used in digital signatures

54.     Compared to the block cipher system, what are the characteristics of the public key cipher system?

• a.     Has a slow computing speed

• b.     Publicly encrypted algorithms, so they are not secure

• c.     Small lock space is easy to spy on code

• d.     There is a public key, so the content of the message is easily decrypted

55.     Which conclusion is correct

• a.     The Merkle - Hellman code system is widely used in digital signatures

• b.     ECC cryptography is applied in digital signatures

• c.     The Elgamal code system is widely applied in the Internet

• d.     The Merkle - Hellman code system is widely applied in the Internet