Without using the built in java hash table Write a Java program to get input from the keyboard to enter an integer. Write a hash function to hash the integer. Store the integer in a DataItem object. Create a hash table to store the DataItem in the hash table at the hashed location. Write a function to search a hash function for an integer value and display it from the DataItem object at the hashed location

import hashlib def hash_function(password, salt, al):  if al == 'md5':    #md5    hash = hashlib.md5(salt.encode() + password.encode())    hash.update(password.encode('utf-8'))    return hash.hexdigest() + ':' + salt  elif (al == 'sha1'):    #sha1      hash = hashlib.sha1()    hash.update(password.encode('utf-8'))    return hash.hexdigest() + ':' + salt  elif al == 'sha224':    #sha224    hash = hashlib.sha224()    hash.update(password.encode('utf-8'))    return hash.hexdigest() + ':' + salt  elif al == 'sha256':    #sha256    hash = hashlib.sha256()    hash.update(password.encode('utf-8'))    return hash.hexdigest() + ':' + salt  elif al == 'blake2b':    #blake2b512    hash = hashlib.blake2b()    hash.update(password.encode('utf-8'))    return hash.hexdigest() + ':' + salt  else:    print("Error: No Algorithm!") if __name__ == "__main__":  # TODO: create a list called hash_list that contains  # the five hashing algorithsm as strings  # md5, sha1, sha224, sha256, blake2b    hash_list =…

Password Cracking   Each student should be able to access* one PassXX.hash file.  This file contains 4 unsalted md5 password hashes (md5 is commonly used for hashing passwords, though it is a bit weak for modern use.  It is very important to salt passwords before hashing them, since leaving them unsalted makes them easier to crack.  However, many sites fail to do this). Your assignment is to use Hashcat (or another password cracking or password "recovery" tool) to retrieve the original passwords from the hashes, and submit the password/hash pairs. Each set of hashes contains 1 very easy password and 3 slightly challenging passwords of differing format. Link to hashcat: https://hashcat.net/hashcat/   Note: You will also need one or more dictionaries to perform a dictionary attack. *access: Files are accessible based on your last name. You should see a large number of files that are not accessible due to your account having a wrong last name, and one file that is accessible that lacks…

The following are applications of hash functions EXCEPT FOR   Question 15 options:   AES encryption algorithm   Storing Passwords   File synchronization   Digital Signatures

What is a hash function?a) A function has allocated memory to keysb) A function that computes the location of the key in the arrayc) A function that creates an arrayd) A function that computes the location of the values in the array

la) Declare and instantiate a HashMap object named hMap whose values are Integers and keys are Strings. 1b) Write a for-each loop to find the total of the values in this HashMap.

java program For this question, the server contains the id, name and cgpa of some Students in a file. The client will request the server for specific data, which the server will provide to the client.    Server: The server contains the data of some Students. For each student, the server contains id, name and cgpa data in a file. Here's an example of the file: data.txt101 Saif 3.52201 Hasan 3.81.... Create a similar file in you server side. The file should have at least 8 students. The client will request the server to provide the details (id, name, cgpa) of the Nth highest cgpa student in the file. If N's value is 1, the server will return the details of the student with the highest cgpa.  if N's value is 3, the server will return the details of the student with the third highest cgpa.  If N's value is incorrect, the server returns to the client: "Invalid request".   Client:  The client sends the server the value of N, which is an integer number. The client takes input the value of N…

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Excute the Program about Hash and show me the result . Source code import java.util.*; import java.io.*; class HashTable { public static void main(String[] args) throws IOException {  int key; try { BufferedReader in = new BufferedReader (new InputStreamReader(System.in));  System.out.print ("How many elements you want to enter to the hash table : "); int n = Integer.parseInt(in.readLine());  Hashtable hashTable = new Hashtable(); for(int i = 0; i < n; i++) {  System.out.print("Enter key for the hash table : ");  key = Integer.parseInt(in.readLine());  System.out.print("Enter value for the key : ");  hashTable.put(key, in.readLine()); }  Map map = new TreeMap(hashTable); System.out.println(map); } catch(NumberFormatException ne) { System.out.println(ne.getMessage() + " is not a legal value."); System.out.println("Please enter a numeric value."); System.exit(1); } } }//End