Cryptocurrency Quiz

I. Applications of matrices, how significant they are, and how it can be used in cryptography. Minimum of 10 sentences.

Elliptic Curve Cryptography (ECC): What is it and how does it work? Explain how the Diffie-Hellman key exchange technique works in ECC.

true or false 11. One property of encryption algorithm is that someone can know the details of the algorithm and still not be able to decipher the encrypted message without knowing the key that the algorithm used to encrypt the message.

Describe the different types of encryption algorithms, such as symmetric-key encryption, public-key encryption, and hashing algorithms, and their respective applications.

Decoding a Message The cryptogram below was encoded with a 2 x 2 matrix. The last word of the message is RON. What is the message? 8 21-15 -10 -13 -13 5 10 5 25 5 19 -1 6 20 40 18 18 1 16 -

SOLVE STEP BY STEP PLEASE THANKS! A website password is made up of 8 characters, of which at least 2 must be letters (uppercase or lowercase, assume there are 26 of each), at least 2 must be decimal digits (0 to 9) and at least 2 must be special characters (assume there are 24 special characters). In how many ways can the password be chosen if repeating characters is allowed and it is case sensitive?

Data Encryption Standard   Perform a Data Encryption Standard encryption on the plaintext (PL) by using key (K). The PL is your first 8 characters of your name and K is the last 8 digits of your student ID.   For example:   Name: Siti Fajar Plain text (PL): SITIFAJA   Student ID: 201908040016 Key (K): 08040016 Show detail step by step involved.

Discuss the role of prime numbers in public-key cryptography, particularly in algorithms like the Diffie-Hellman key exchange and RSA encryption.

Explore the mathematical properties of prime numbers and their significance in number theory and cryptography. How are prime numbers used in encryption algorithms like RSA?

Please write a new overview for this question that is not the same as the one already available for reveiw. Perform a Web search for “Announcing the Advanced Encryption Standard (AES).” Read this document, which is a FIPS 197 standard. Write a short overview of the development and implementation of this cryptosystem.

Question 1 Study the scenario and complete the question(s) that follow: Ceasar Cipher The Caesar Cipher technique is one of the earliest and simplest method of encryption technique. It's simply a type of substitution cipher, i.e., each letter of a given text is replaced by a letter some fixed number of positions down the alphabet. For example with a shift of 1, A would be replaced by B, B would become C, and so on. The method is apparently named after Julius Caesar, who apparently used it to communicate with his officials. 1.1 Write a Ceasar cipher algorithm in such a way that a character D is changed to N. Derive the encryption of the other characters accordingly. 1.2 Based on your algorithm, what will be the encrypted code of the message “my mother is not home". End of Question 1

Is the use of encryption going to turn into a part of the usage of biometrics at some point in the future? How significant is the role that cryptography plays in the evolution of biometric technologies?

True or False 9. An example of a lightweight cryptographic block cipher is the Scalable Encryption Algorithm.

Hi! This is not a graded question I just need it for my reviewer. Thanks? 3.a) What is the RSA public-key signature scheme? That is, what are its constituent key generation, signing, and verification functions? b) What function must be one-way if this signature scheme is to be secure? c) Note that the RSA functions can be used both as a public-key cryptosystem and as a public-key signature scheme. The decryption function and secret key of the cryptosystem are used to generate signatures, and the encryption function and public key of the cryptosystem are used to verify signatures. Is this true in general? That is, can any public-key cryptosystem be turned into a public-key signature scheme simply by reversing the roles of encryption and decryption?

Part 1: Please answer the following questions about the fundamental of cryptography. Each question has only one correct answer.   1, Which description about block ciphers is NOT correct?  Block ciphers encrypt the message block by block. A block cipher with a small block is vulnerable to the codebook attack. The encryption and decryption algorithms in block ciphers use the same secret key. The key length for block cipher should be very short to defend against the exhaustive key search attacks.   2, If the key length of a block cipher is 64 bits, what is the size of the key space?  Hint: The key space consists of all possible keys. 64 264 232 2128   3, Modern block ciphers combine substitution S and permutation P operations to improve security. Based on the security rule, the cipher should not use consecutive substitutions or consecutive permutations.  In the following combinations, which one violates the above security rule?    ?1?1?2?2 B.  ?1?1?2?2 C.  ?1?1?2?2   4, Which…

Explain how encryption secure passwords and write a program using either java or python of a hash function that can be used for passwords and give illustration to show how a hash function in cryptography works.

Cryptography is the study of protecting information. A cipher is a pair of algorithms ―the first algorithm encrypts a message and the second algorithm decrypts the message. In most cases, a unique key is also required to encode or decode plaintext. The Caesar cipher is one of the simplest and most widely known ciphers. It is named after Julius Caesar who allegedly used it to protect important military directives. Every letter in the plaintext is replaced by a letter N positions down the alphabet. For example, if N = 3, then a => d and b => e. While the idea is remarkably simple, it appeared to work in Ancient Rome. Most people there couldn't read, and those who could simply assumed it was a foreign language. Write a program that implements the Caesar cipher. You program will get from standard input the key N, followed by a line of plaintext. . . The key N should be any integer between 0 and 26 inclusive. If this isn't the case, print an error message and quit. Any numbers or…

Can any secrets be revealed about data?

Fill in the blanks 1. cryptographic algorithms can be divided into three categories: keyless, -----------, and two-key. 2. --------- is a characteristics of an entity that reflects the degree to which that entity is deserving of trust.

What are the differences between cryptographic hashing and compression?

Hash functions such as SHA256 play an integral role in Bitcoin, which is an application of blockchain technology. Research what role cryptographic hash functions play in Bitcoin and other cryptographic currencies. You may focus on one aspect, such as the word cryptographic, or an actual implementation, or the philosophy behind hash function.

Cryptography's standard for digital signatures (DSA) is used as the basis for the DSA algorithm, which is discussed here.

2. Machine learning techniques can be built for trading algorithms of cryptocurrencies. true  false

Using asymmetric encryption methods, like those used in public-key cryptography, is a good idea. This is shown by the use of public keys in cryptography.Using asymmetric encryption methods, like those used in public-key cryptography, is a good idea. This is shown by the use of public keys in cryptography.

Encryption/Decryption using RSA: Use p = 17, q = 11, and n = p*q = 17 × 11 = 187. φ(n) = (p - 1)(q - 1) = 16 × 10 = 160 PU = {7, 187} is the public key PR = {23, 187} is the private key Encrypt the plaintext message 80. What is the ciphertext message?   Question 10 options:   80   90   85   75

The Advanced Encryption Standard (AES) is a successor algorithm to DES and contains more robust features and is more secure against attacks. On August 20, 1998, NIST announced 15 AES candidate algorithms at the First AES Candidate Conference (AES1) and solicited public comments on the candidates. Industry and academia submitters from twelve countries proposed the fifteen algorithms. The candidate algorithms accepted by NIST into the AES development process are the following     Explain an overview of the algorithm RIJNDAEL List The algorithm RIJNDAEL features and how it works in steps. List an algorithm RIJNDAEL security with advantages and drawbacks Prepare a presentation about the RIJNDAEL selected topic. The presentation must be at a maximum of 5 slides long. Your presentation slot will be limited to 15 minutes: 10 minutes for the presentation, followed by 5 minutes for Q&A.

Public key cryptosystems are: (more than one may be true, choose all that are true) a offering a simpler way for key distribution B faster than symmetric C the preferred solution when the message we want to encrypt is very large D easily used to offer integrity E requiring advanced hardware in order to use them F easily used to offer confidentiality G marketed better than symmetric that is why people prefer them H using one key for encryption and a different key for decryption

It is to one's benefit to use asymmetric encryption techniques, such as those utilized in public-key cryptography. This is the case, for instance, with [c]cryptography that relies on shared public keys.