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elena-14-01-66 [18.8K]
2 years ago
15

100 POINTS!!!!!!

Computers and Technology
1 answer:
Veronika [31]2 years ago
3 0

Answer:

The fundamental limitation of symmetric (secret key) encryption is ... how do two parties (we may as well assume they are Alice and Bob) agree on a key? In order for Alice and Bob to communicate securely they need to agree on a secret key. In order to agree on a secret key, they need to be able to communicate securely. In terms of the pillars of IA, To provide CONFIDENTIALITY, a secret key must first be shared. But to initially share the key, you must already have CONFIDENTIALITY. It's a whole chicken-and-egg problem.

This problem is especially common in the digital age. We constantly end up at websites with whom we decide we want to communicate securely (like online stores) but with whom we there is not really an option to communicate "offline" to agree on some kind of secret key. In fact, it's usually all done automatically browser-to-server, and for the browser and server there's not even a concept of "offline" — they only exist online. We need to be able to establish secure communications over an insecure channel. Symmetric (secret key) encryption can't do this for us.

Asymmetric (Public-key) Encryption

Yet one more reason I'm barred from speaking at crypto conferences.

xkcd.com/177/In asymmetric (public key) cryptography, both communicating parties (i.e. both Alice and Bob) have two keys of their own — just to be clear, that's four keys total. Each party has their own public key, which they share with the world, and their own private key which they ... well, which they keep private, of course but, more than that, which they keep as a closely guarded secret. The magic of public key cryptography is that a message encrypted with the public key can only be decrypted with the private key. Alice will encrypt her message with Bob's public key, and even though Eve knows she used Bob's public key, and even though Eve knows Bob's public key herself, she is unable to decrypt the message. Only Bob, using his secret key, can decrypt the message ... assuming he's kept it secret, of course.

Explanation:

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Hide Time Remaining A
Maslowich

Answer:

True

Explanation:

The class Math include mathematical functions such as sin(), cos(), tan(), abs(), etc

If the given statement is not written, each of the math function will be written as (take for instance, the sin() function):

<em>Math.sin()</em>

<em></em>

But after the statement has been written (it implies that the Math library has been imported into the program) and as such each of the mathematical function can be used directly.

So instead of <em>Math.sin(), </em>you write <em>sin()</em>

5 0
3 years ago
Your computer is crashing on a regular basis. Which of the following is an operation available to the user that should help rese
Neko [114]

Answer

System restore

Explanation

System restore is a recovery feature that helps restore your system to the previous condition or point. Most computers have system restore disks which are an advantage to the users especially when the computer clashes.These disks are very effective when it comes to restoring the system to its initial state.

6 0
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Positive and negative impacts of chemical industries
Nonamiya [84]
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4 0
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Which one of the following terms is defined as the material and surfaces upon which an artist works?
katrin [286]

Media is the surface or material that an artist works on


5 0
3 years ago
Write a public static method diagSum, which takes a 2d array of int values as a parameter, and returns the sum of the elements i
saveliy_v [14]

A 2d array (i.e. 2 dimensional array) represents its elements in rows and columns

<h3>The program in Java</h3>

The method in Java, where comments are used to explain each line is as follows

//This defines the method

public static int diagSum(int[][] myArray) {

    //This initializes sum to 0

    int sum = 0;

    //This iterates through each row of the array

               for (int i = 0; i < myArray.length; i++) {

                   //This calculates the sum of the diagonals

                       sum+=myArray[i][i];

               }

               //This returns the sum

               return sum;

       }

Read more about methods at:

brainly.com/question/15969952

6 0
2 years ago
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