Mathematical methods of information security Answers Sy

Product description

COLLECTION OF ANSWERS - 60 questions. Mathematical methods of information security Answers to Synergy tests. Result Excellent 97/100 points

• Repetition is ...

• Substitution is ...

• One-time encryption is most acceptable for processing ...

• In an asymmetric RSA cryptosystem ...

• The message authentication code provides ...

• When generating a digital signature, it is used ...

• When simulating active actions of the enemy, he is usually put ...

• Disposable notepad message integrity check ...

• The Diffie-Hellman public key distribution system uses ...

• The Diffie-Hellman protocol is a protocol ...

• The most important component of the cipher is ...

• When encrypting according to the GOST 28147-89 encryption standard, the complete dispersion of the input data occurs after ...

• In a perfect (ideal) cipher, the posterior probabilities of plain texts (calculated after obtaining the cryptogram) ...

• The enemy's knowledge of the encryption algorithm ...

• Formant is a spectrum region, ...

• Algorithms for the formation and verification of electronic digital signature ...

• Passive attack carried out by the enemy is associated with ...

• The measure of the imitation strength of the cipher is the probability of successful ...

• Perfect security is ensured when with a key ...

• When verifying a digital signature, it is used ...

• When considering the practical strength of ciphers, it is assumed that for the cipher in question, there will usually be ...

• The advantage of asymmetric encryption systems (compared to symmetric systems) is ...

• Public and private keys in an asymmetric system ...

• In a simple substitution cipher, each character of the original message corresponds to ...

• The basis for the formation of symmetric encryption algorithms is the assumption that ...

• Meaningful plaintext obtained by decrypting a cryptogram generated using a one-time pad ...

• In stream ciphers at one point in time, the encryption procedure is performed over ...

• It is not true that an active attack by an adversary involves ...

• It is not true that in the artificial formation of a speech signal, such a characteristic is used as ...

• Using a symmetric cryptoalgorithm using different keys for encryption and decryption ...

• With the increase in channel bandwidth, the possibility of voice identification ...

• Diffie-Hellman Protocol ...

• The working characteristic of the cipher is the Average amount of work W (N) required to determine ...

• It is not true that the advantages of flow systems include ...

• The number of operations required to determine the used encryption key from the fragment of the encrypted message and the corresponding plain text must be ..

• In a symmetric encryption system for the independent operation of N subscribers ...

• The encrypted message must be readable ...

• The content of the imitation insert should depend ...

• The enemy, making a substitution or imitation of a message, proceeds from the assumption that ...

• The reliability of the RSA algorithm is based on ...

• A renegade is ...

• The maximum number of rounds of encryption according to the GOST 28147-89 standard is ...

• It is not true that the disadvantages of asymmetric cryptosystems include ...

• Practical implementation of the Diffie-Hellman algorithm ...

• When scrambling a speech signal, change ...

• ​​An electronic digital signature is ...

• Information security in the Diffie-Hellman system is based on complexity ...

• A phoneme is ...

• The imitation insert is designed to test ...

• The secret sharing method is used primarily to reduce risks ...

• In an asymmetric encryption system for the independent operation of N subscribers it is required ...

• For the initial distribution of keys ...

53.

Additional information

• The length of the ciphertext must be ...

• The substitution of an encrypted message involves ...

• In a symmetric system, the recipient and the sender use to encrypt and decrypt the message ...

• The average duration of a fricative sound is ...

• The average duration of an explosive sound is ...

• The disadvantage of asymmetric encryption systems is ...