Answer:
Bob was wrong in his argument because from the cipher text C₂ only the initialization vector is encrypted two times and XOR with plain text M.
Also it will not provide a better security than the first because it's encryption was done only on initialization vector and not the plain text.
Explanation:
Solution
From the given question, in the output feedback mode (OFB) the following Encryption Algorithm is stated as follows:
Where,
V₀ = vector initialization
V₁ = Ek (Vi-₁)
Ek = The encryption algorithm
C₁ =V₁⊕ M₁
Here,
C₁ = this is the cipher text
M₁ = Plain text for it^th session
Thus
The Decryption Algorithm is shown below:
M₁=V₁⊕ C₁
In this case, when bob encrypt the message M for the first time in the OFB method, the cipher text is
C₁ =V₁⊕ M₁
So,
C₁ =Ek (V₀) ⊕ M
Hence the Cipher text C₁ the initialization vector only is encrypted
Thus,
When Bob does a second encryption, the Cipher text will be
C₂ =Ek (V₁) ⊕ C₁
C₂ = Ek (Ek (V₀)) ⊕ Ek (V₀) ⊕ M
Finally, from the cipher text C₂ only the initialization vector encrypted twice and XOR with plain text M. so it will not provide a better security than the first because it's encryption was carried out on initialization vector without the plain text.
Self-contained sequences of actions to be performed are: (1 point)
expressions
algorithms
functions
formulas
Answer:
god
Explanation:
god is always the answer
Five friends plan to try a startup. However, they have a limited budget and limited computer infrastructure. How can they avail the benefits of cloud services to launch their startup?
Answer:
Use the azure free $200/ google cloud $300 credit for your first year of business and as you go use the profits off of that to pay for your servers once that credit runs out....
Explanation:
Cloud servers usally run at a per house rate on $0.02 depending on what you need
can anyone help me quickly please
Answer:
command line interface
hope it helps u , stay safe
Tom only thinks about his own gain and does not care about the team objectives. What quality is he demonstrating? A. resourcefulness B. honesty C. dishonesty D. selfishness
Answer:
D. Selfishness
Explanation:
Selfishness is caring about yourself and not others
Answer:
selfishness
Explanation:
Availability is an essential part of ________ security, and user behavior analysis and application analysis provide the data needed to ensure that systems are available.
Answer:
Network
Availability is an essential part of Network security, and user behavior analysis and application analysis provide the data needed to ensure that systems are available.
What are some technical challenges and questions that arise from the need to represent digital information in computers and transfer it between people and computational devices?
Answer:
security
Explanation:
One technical issue that arises from this is security. Many times the information that is being transferred is private or even valuable, therefore grabbing the attention of hackers/thief's that want this information. This makes security highly important, but making sure that the information is completely secure is impossible. The best that can be done is adding certain safety measures to secure the information as much as possible, which in term is a technical challenge.
Clicking on the cube that appears in the top right of the 3D view window will: (1 point)
create a new object
center the view on the terrain
undo your last action
toggle between orthographic and perspective view
Answer:
The correct option is;
Toggle between orthographic and perspective views
Explanation:
On a game design program such as Unity 3D, when the cube with colored pointers that can be located on the 3D view window is clicked, it will bring about a switch between the perspective or 90 degrees and orthogonal views which enables the display of the object in three dimension that appears more like real life figures.
____ allow us to store a binary image in code. (1 point)
Bitmaps
Classes
Arrays
Unions
Answer:
A. Bitmaps
Explanation:
Could use help with the first or second one please! P
Which branch of study can help Jessica study the concept of light
Answer:
Physics, Quantum Mechanics
Explanation:
Light is a stream of photons with no weight. If you want to dig deeper in this mysterious phenomena, you should study physics and quantum mechanics. Physics takes up things like the theory of relativity, which can be useful in studying spacetime and how light travels through it, and quantum mechanics, being the study of matter in an atomic level, should help you get an understanding on how photons of light travel and why they behave so strangely.
Answer:
Physics
Explanation:
who want points hehehhheheehhe
Answer:
yoo pap i :v
p
Explanation:
Answer:
Hey I want points
Explanation:
Because I am selfish and do not liking to get to my rewards
How was the creation of the world wide web browser a stepping stone for future scientific breakthroughs?
Answer:
Following are the point that described the web browser for the stepping stone as a future scientific breakthroughs.
Explanation:
Tim Berners Lee was the founder of world wide web .The Tim Berners Lee is software engineer at CERN they had seen the troubling of exchanging the data .In that time there are various data in various computer .The Tim Berners Lee felt he had found the way for resolving this problem and develop a thing so that we can exchange the data in any where .In that time already lots of computer are already linked each other with the high speed of the internet so tim develop a new technology called hypertext .In the March 1989, in a paper titled known as "Information Management" Tim is developed but this proposal is rejected .In the 1990 Tim is developed the three technology HTML ,URI and HTTP with the help of this the world wide web is developed and we can share the information anywhere in the world .The sharing of information in a easy way gives the future bright the person in anywhere in the world will access the data or the information also We cam communicate anywhere in the world by using email .Which of the following data structures can erase from its beginning or its end in O(1) time?
Where all "the following" i can help you but you said which of the folllowing and ther no picture or anything?
The stack data structure can erase from its beginning or its end in O(1) time.
The O(1) complexity is an illustration of getting operations done in a constant time.
Stack data structure uses the push and pop operations for inserting and deleting items in a linear or constant time.
This implies that, inserting an item into a stack happens in O(1) time, and also; removing an item from the stack, irrespective of the item location (beginning, end, or in between) happens in O(1) time.
Read more about data structure at:
https://brainly.com/question/21287881
needed urgently what are short cut keys
Answer:
Copy: Ctrl + C.
Cut: Ctrl + X.
Paste: Ctrl + V.
Maximize Window: F11 or Windows logo key + Up Arrow.
Task View: Windows logo key + Tab.
Switch between open apps: Windows logo key + D.
Shutdown options: Windows logo key + X.
Lock your PC: Windows logo key + L.
Explanation:
This is for windows. Most of these can be replaced by the command key instead of the control key on mac.
Answer:
some shortcut keys are:
Explanation:
ctrl + A - select all
ctrl + B - bold
ctrl + C - copy
ctrl + U - underline
ctrl + V - paste
ctrl + X - cut
ctrl + Y - repeat
ctrl + Z - undo
ctrl + P - print
ctrl + I - italic
Write a Java program that prints out a 4x4 square (like the one below)
public class 4by4Square
{
public static void main(){
System.out.println("xxxx \nx x\nx x\nxxxx");
}
}
~CaptnCoderYankeeWhich memory part is connected to the processor?Which memory part is connected to the processor?
Ok so I usually don’t do this but I just need an answer , on Instagram a notification popped up while I was watching someone’s story ,and it started by saying “Instagram is taking into
Account” but I couldn’t finish reading cuz I accidentally swiped to the next story,does anyone know what it might’ve said?thanks
Answer:
I think it was about cheaper ads on Instagram and how they are lowering their prices.
Explanation:
Answer:
That's never happened to me but I suspect that it's most likely just a random Instagram update that probably doesn't matter
Explanation:
5 advantages of word processor
two uses of hexadecimal
Answer:
it allows you to store more information using less space. It is fast and simple to convert between hexadecimal numbers and binary.
Explanation: Hexadecimal can be used to write large binary numbers in just a few digits. It makes life easier as it allows grouping of binary numbers which makes it easier to read, write and understand.
A prefab allows you to reuse game objects over and over, while their component data remains intact. (1 point)
True
False
Answer:
True
Explanation:
A prefab allows you to reuse game objects over and over, while their component data remains intact.
A prefab serves as a store for components and values of game objects. This is turn makes the game objects a reusable asset.
In a prefab, there is no need to continuously copy and paste game objects as there are identical copies of the game objects in prefab.
Examples of situations where prefab is used is in:
a) In the creation of a Non Playing Character (NPC) that is found in some computer games. This characters come up at the exact moment that they are needed in games.
As our use of the internet increases e-safety becomes essential.
Discuss why e-safety is needed.
Answer:
The answer is described below
Explanation:
E safety means means protection of private information and personal safety when using the internet. E safety involve the protection of private information, passwords against identity theft or property theft. A persons private information, passwords can be gotten through the use of phishing or malwares.
Also, the use of internet has exposed people to cyber bullying(i.e abuse of an individual), stalking, engaging underage children into sexual relationships and sextortion.
E safety help protect children from harmful content and services as those listed.
What is the basic unit of measurement for RAM specs
Answer: RAM, random access memory is measured in GIGABYTES. Bsbdjdjdj
Answer: The basic unit of measurement for RAM specs is byte.
The ? bar gives you information related to the document such as slide number, theme and whether or not the computer has found an error in the text
Answer:
Status bar
Explanation:
The status bar is a horizontal bar usually located at the bottom of the screen or window, showing information related to a document being edited such as slide number, current theme template, spelling and grammar, language, zoom, notes, comments, permissions, signatures e.t.c.
It can be used to group information by dividing into sections and also provides several View options.
what is a segment
a length of uninterrupted cable connecting two devices
the main piece of cable in the network
a piece of hardware connecting pieces of cable
a set of data or information
ning and e-Publishing: Mastery Test
1
Select the correct answer.
Which statement best describes desktop publishing?
O A.
a process to publish drawings and photographs on different media with a laser printer
B.
a process to design and produce publications, with text and images, on computers
OC.
a process to design logos and drawings with a graphics program
OD
a process to publish and distribute text and graphics digitally over various networks
Reset
Next
Answer:
B
Explanation:
I dont no if it is right but B has the things you would use for desktop publishing
Answer:
the answer is B.
a process to design and produce publications, with text and images, on computers
Explanation:
What happens if a sequence is out of order?
Answer:
If you are trying to put the events in order and they are out of order you will probaly get the question wrong so make sure the events are in order.
Explanation:
Answer: a, The program may not work correctly.
Explanation: Because I do coding, and learned this already.
Please help me guys! :))))) To activate the Spelling and Grammar check features, you can either navigate to the Review tab, or use the shortcut key _____. F9 Ctrl+F F7 Ctrl+H
Answer:
F7
Explanation:
I hope this helps! :)
Answer:
F7
Explanation:
Question #1
Describe the issues regarding controlled airspace and minimum safe altitudes that affects an airborne pilot's decision-making.
Question #2
Describe how basic weather conditions such as wind, temperature, and precipitation will
affect a drone’s flight.
Question #3
Explain the role of the “Pilot-in-Command” and the “Remote-Pilot-in-Command.”
Question #4
Explain how a quadcopter maintains balanced flight while hovering.
Question #4
Explain how a quadcopter differs from an airplane to accomplish the maneuvers of pitch, roll, and yaw.
Answer:
1) Separation
2) Weather impacts on the ability to fly a drone
3) The Pilot-in-Command is in charge of a manned aircraft
The Remote-Pilot-in-Command is in charge of an unmanned aircraft
4) With the aid of a flight controller
5) A quadcopter is controlled by adjusting the rotor speeds
An airplane is controlled by adjusting the ailerons, elevator and rudder
Explanation:
1) Separation
Issues regarding controlled airspace and minimum safe altitudes that affects an airborne pilot's decision-making is called separation related issues
The concept of separation pertains to ensuring that an aircraft stays outside the minimum distance from other aircraft, obstacles or controlled airspace
Vertical Separation
The allowable vertical separation distance between two aircraft from the ground surface up to 29000 feet is 300 meters
The allowable vertical separation distance between two aircraft above 29000 feet is 600 meters
Horizontal separation
Horizontal separation are required for two aircraft that are closer to each other than the allowable minimum vertical separation. Horizontal separation includes, procedural separation, longitudinal separation, radar separation and reduced separation
2)
Wind
When the wind speed is high, it limits the drone's ability to maintain its position drifting the aircraft to undesired direction of flight
Temperature
High temperatures causes the the drone's motor to work harder generating more lift force which lead to shorter flight times
Cold temperatures reduces the battery efficiency and can also lower the battery voltage below the critical voltage.
Precipitation
A drone's is not waterproof and flying a drone i the rain can damage the equipment
Flying a drone in the rain increases the difficulty in its operation especially in drones that makes use of cameras for their flight stability
Rainy conditions reduces the strength and control of remote controllers
There is reduced visibility of flight during rainfall
3) In an aircraft, the Pilot-in-Command (PIC) is the pilot primarily responsible for the safety and operation of the aircraft during flight
The Remote-Pilot-in-Command has the primary responsibility and authority for the operation of a remotely operated (small) aircraft system
4) A quadcopter maintains balanced flight by the information sent to control the direction of the propeller and the orientation as well as the speed of the rotor controlled by flight controller through the electronic speed control circuit (ESC) to control the thrust, revolutions per minute (RPM) and the direction of the quadcopter
5) Pitch in a quadcopter is achieved by tilting to move forward
In an airoplane the pitch is controlled by the elevators
Roll in a quadcopter is achieved by increasing the rotation of the rotors on the one side and decreasing the rotor speed on the other side
Roll in an airplane is achieved by adjusting ailerons
Yaw in a quadcopter is the spin achieved by reducing the speed of the front rotor on the side opposite to the direction of the intended spin motion
Yaw in an airplane is achieved by adjusting the ruder and ailerons to turn the plane
electricity was seen as a mysterious force and began to creat a stir when people called
This isn't related to computers and when you look it up all it comes up with a Stars Wars.
how do I learn coding???
Answer:
FIERST LEAR JS ( JAVIA SCRAP) NEXT DM ME ON DISCORD WHEN YOU HAVE THE BASE LERAL ON KAHN ACIMADY
Explanation:
Answer:codeacedmy
Explanation:it gives the best coding tutions