1100110-101101 = 111001 = 57
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:
Answer:
Column matching given in explanation
1. Intranet : <em>a network of computer within an organization</em>
2. Placeholder: <em>an empty area that reserves space for new content</em>
3. Presentation: <em>information delivered to an audience</em>
4: Presentation Technology: <em>a software application that helps organize and convey information</em>
5. Keynote: <em>the main speech delivered to all in attendance</em>
Explanation:
Intranet:
A small network that exist in the small organization or company to connect all the computers in organization.
Placeholder:
In computer programming, few variables has been defined in the start of program. These variables have no value initially but can be utilized at the time of need. These variable holds some space in memory that is called Placeholder.
Presentation:
A piece of information relevant to some particular topic, which will be delivered to a particular audience is called presentation.
Presentation Technology:
The tools that are used to assist presentation such as projector, slides, boards etc. are called presentation technology.
Keynote:
The main idea of speech that presenter want to deliver to the audience is called Keynote.
Scan the tables to make a digital copy of them
<span>The answer is CTRL + A, this selects whole worksheet (A means all). In computing, a Control key is a transformer key which, when pushed in combination with one more key, achieves a singular operation (for example, Ctrl + A; like the Shift key, the Control key infrequently achieves any purpose when pushed by itself.</span>
