For some reason my code give m a error for when I try and grab the byte from this section. And I don't know what the problem is.
static byte[] EncryptStringToBytes_Aes(string plainText, byte[] Key)
{
byte[] encrypted;
byte[] IV;
using (Aes aesAlg = Aes.Create())
{
aesAlg.Key = Key;
aesAlg.GenerateIV();
IV = aesAlg.IV;
aesAlg.Mode = CipherMode.CBC;
var encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
// Create the streams used for encryption.
using (var msEncrypt = new MemoryStream())
{
using (var csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
using (var swEncrypt = new StreamWriter(csEncrypt))
{
//Write all data to the stream.
swEncrypt.Write(plainText);
}
encrypted = msEncrypt.ToArray();
}
}
}
var combinedIvCt = new byte[IV.Length + encrypted.Length];
Array.Copy(IV, 0, combinedIvCt, 0, IV.Length);
Array.Copy(encrypted, 0, combinedIvCt, IV.Length, encrypted.Length);
// Return the encrypted bytes from the memory stream.
return combinedIvCt;
What is diffie-hellman most commonly used for?
Final answer:
The Diffie-Hellman algorithm is primarily used for secure key exchange, allowing two parties to establish a shared secret over an insecure channel which can be used for encrypted communication. It relies on the difficulty of solving the Diffie-Hellman problem and is fundamental to many cryptographic protocols.
Explanation:
The Diffie-Hellman algorithm is most commonly used for secure key exchange over a public channel in the field of cryptography. This method enables two parties to create a shared secret key, which can then be used for secure data encryption and decryption. The process involves each party generating a private key and a public key component, followed by an exchange of the public key components. The clever part of Diffie-Hellman is that despite the public exchange, eavesdroppers cannot easily calculate the agreed-upon secret key. Each party then uses its private key together with the other party's public key to compute the identical shared secret.
The security of the Diffie-Hellman algorithm relies on the difficulty of calculating discrete logarithms in a finite field, which is known as the Diffie-Hellman problem. It's a foundational technique in creating secure communications, laying the groundwork for various cryptographic protocols, such as the establishment of SSL/TLS connections which are ubiquitous in securing web-based transactions.
A layer 2 switch is used to switch incoming frames from a 1000base-t port to a port connected to a 100base-t network. which method of memory buffering would work best for this task?
Why are rules required for a number system to be useful?
Answer
This is because without them no one would know how much each symbol represents, and no one would be able to decipher the message.
Explanation
Number system is a way to represent numbers. It is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set, using digits or other symbols in a consistent manner.
In computing or in a computer number systems are the techniques which represents numbers in the computer system architecture where every value that you are saving or getting into/from computer memory has a defined number system.Computer architecture supports . Binary number system,Octal number system and Decimal number system.
Rules are required for a number system because computers relay on number system and its Basics of Computers - Number System. The method to represent and work with numerals is called number system. Decimal number system is the most commonly used number system which is used in our daily lives but computers do not understand this system. Some of popular number systems that computers consists are binary number system, octal number system, hexadecimal number system, etc.
Further Explanation:
⦁ Computers uses different number systems, that is why we have different rules for every different number systems, for every number system to be understandable to computers, we clearly need to define specific rules to follow for computation.
⦁ There are four main types of number systems, Decimal, Binary, the Octal and the Hexadecimal.
⦁ Binary Number System: An example of basic number system that computer uses is binary number system, based on number system of 2 digits (base two), which is 0 and 1. Its considered as perfect numbering system for computers and computers relay on this number system.
⦁ Decimal Number System: is a base 10 number system, which is consists of 10 digits from 0 to 9, that w use in our daily lives, This means that any numerical entity can be represented using these 10 digits. Decimal number system consists of ten single-digit numbers.
⦁ The Octal Number System: The octal numeral system defined as the base-8 number system, which uses the digits 0 to 7. Octal numerals can be made from binary numerals, it is made by grouping consecutive binary digits into groups of three (start from the right to left).
Answer details
Grade: High School
Subject: Computer Science and Technology
Chapter: Binary Mathematics
Keywords: number systems, binary mathematics, binary number system, octal number system, decimal to binary conversion etc
Which of the statements below describe how to print a document?
Click on Print in the system tray.
Click on the Print icon at the top of the screen.
Select Print from the File menu.
Select Print from the Start menu.
Answer:
Select Print from the File menu
Explanation:
Other options listed are either impossible or a bit difficult to achieve. "Selecting Print from the File menu" not only allows for easy access, it also ensures that the target document is being printed without much effort. Many applications have a file menu from where certain processes could be accessed and done easily.
Hope this helps!
Answer:
a b d
Explanation:
What tool is used in combination with an impact wrench to install lug nuts on wheels?
A socket wrench is typically used with an impact wrench to install lug nuts on wheels, providing grip and mechanical advantage for proper tightening. A power drill may also be utilized with a socket adapter in some cases. It is crucial to use the right tools and techniques to avoid over-tightening or damaging the lug nuts.
Explanation:The tool that is commonly used in combination with an impact wrench to install lug nuts on wheels is a socket wrench. Socket wrenches provide the necessary grip and mechanical advantage to apply torque to the lug nuts, allowing for efficient tightening. When using an impact wrench, a specialized impact socket is typically used because it is made of a more flexible material that can withstand the high torque levels generated by the impact wrench without breaking.
In some cases, mechanics may also use a power drill with a socket adapter as an alternative, especially if an impact wrench is not available. However, an impact wrench combined with a socket wrench is the preferred method due to its efficiency and effectiveness in properly securing the lug nuts at the correct torque specification. It's important to mention that the use of incorrect tools or improper technique can lead to over-tightening or cross-threading of the lug nuts, which can be dangerous.
Additionally, when dealing with very tight bolts or lug nuts, mechanics sometimes slip a length of pipe over the handle of the wrench to gain extra leverage. This practice, known as a 'cheater bar', increases the torque applied to the bolt, making it easier to loosen. However, it's worth noting that this method is hazardous because it can lead to the bolt breaking under excessive force.
What do you call a firewall that is connected to the internet, the internal network, and the dmz?
By what name are input devices, output devices, and auxiliary storage devices collectively known
I have a project on "USING ADVANCED FORMULAS". It wants me to make a spreadsheet to track payroll. I have no clue how to do this on docs. Can someone please help. Pm me for more info
Answer:
found this on another answer
Explanation:
Suppose that a local area network requires seven letters for user names. lower- and uppercase letters are considered the same. how many user names are possible for the local area network?
Final answer:
Given that lowercase and uppercase letters are considered the same, there are 26 options for each of the 7 positions in a username. Thus, the total number of possible usernames is 26^7, which equals 8,031,810,176.
Explanation:
The question involves calculating the number of possible usernames a local area network can have given certain constraints. Since lowercase and uppercase letters are considered the same, and the username requires seven letters without considering numbers, dots, or underscores, we'll only consider the 26 letters of the alphabet. Therefore, for each of the seven positions in the username, there are 26 possibilities.
The total number of possible usernames can be calculated by raising the number of possible letters (26) to the power of the length of the usernames (7), which is 26^7.
This gives us a total of 8,031,810,176 possible usernames for the local area network.
Recombinant DNA technology was very important because it _______.
Final answer:
Recombinant DNA technology is important because it "enables the production of proteins, revolutionizes the pharmaceutical industry, and contributes to advancements in medical treatments, agriculture, and sustainability".
Explanation:
Recombinant DNA technology, also known as genetic engineering, is important because it has several applications in various fields such as medicine, agriculture, and biotechnology. One of the major contributions of recombinant DNA technology is the production of proteins in large quantities. For example, insulin used to be obtained from animals before the advent of recombinant DNA technology. Now, bacteria can be engineered to produce human insulin, eliminating the need for animal sources.
In addition, recombinant DNA technology has revolutionized the pharmaceutical industry by allowing for the rapid production of high-quality recombinant DNA pharmaceuticals used to treat different human conditions.
Overall, recombinant DNA technology has significantly advanced our understanding and manipulation of genetic material, enabling us to develop new medical treatments, genetically modified crops, and sustainable raw materials.
You've formatted the first paragraph of a document. What button can you use to apply the formatting from the first paragraph to the next paragraph in the document? A. Cut B. Paste C. Copy D. Format Painter
Which network is a private network used for communications with business partners?
Shakespeare’s complete works have approximately 3.5 million characters. Which is bigger in file size: Shakespeare’s complete works stored in plain ASCII text or a 4 minute song on mp3? How much bigger?
1 character in ASCII plain text occupies 1 byte of data; therefore 3.5 million of characters are 3.5 million of bytes. Since 1024 bytes = 1KB, we can use this equivalence to convert 3.5 million bytes to KB: (3500000 bytes)*(1KB/1024bytes) = 3417.97 KB. Now 1 minute of mp3 at 128 Kbps occupies 960KB, and since our mp3 is 4 minutes in length: 4*960= 3840KB. The difference between the two is 3840KB – 3417.97KB = 422.1KB, which means that the mp3 is larger than all the Shakespeare’s works by 422.1KB.
The size of MP3 depends on the file quality. The MP3 quality can be 128 Kbps or 256 Kbps or it may be at any other rate (320Kbps). The high quality MP3 (256 Kbps) have more size than the lower size MP3 (128 Mbps). Therefore, we cannot say whether 4 minutes MP3 is large or 3.5 million characters since MP3 is totally dependent on MP3 quality.
Further explanation:
Since the MP3 file size is dependent on the quality of the music. A high quality (256 Kbps) MP3 of 4 minutes has the size about 7.68 MB and on the other hand a comparatively low quality (128 Kbps) MP3 of 4 minutes has the size of about 3.84 MB. The size of plain text file is 3.5 MB (using M=10^6, not 2^20). The compression of much higher MP3 file is not commonly used for music.
Learn more:
1. A company that allows you to license software monthly to use online is an example of ?brainly.com/question/10410011
2. How does coding work on computers? brainly.com/question/2257971
Answer details:
Grade: Middle School
Subject: Computer Science
Chapter: Computer basics
Keyword:
MP3, file, quality, 256 Kbps, 128 Kbps, 512 Kbps, 320Kbps, high, low, minutes, ASCII code, music, text, size, Shakespeare, millions, MB, KB
In the late 1980s, which wide area network (wan) technology became one of the standard methods of connecting business computers and networks over long distances? frame relay decnet appletalk token ring
By default, the document has a (blank) margin on all four sides
What is the default margin width on all four sides of a document ?
Which device is a general-purpose computing device?
scientist have observed many mysteries of plants True Or False
Answer:
true
Explanation:
Jane works in the sales department of a service company. She has impressive interpersonal skills and always turns up for work on time. Though she gets along well with her coworkers, she has a habit of constantly interrupting them during a conversation. Which core business etiquette, is missing in Jane?
Active listening. Jane's habit of interrupting coworkers indicates a lack of this core business etiquette, hindering effective communication.
The core business etiquette missing in Jane's behavior is active listening. Active listening involves fully concentrating on what is being said by the speaker, understanding the message, and responding appropriately. By constantly interrupting her coworkers during conversations, Jane fails to practice active listening.
Effective communication in the workplace requires not only expressing oneself but also listening attentively to others. Interrupting others can be perceived as disrespectful and can hinder effective communication. It may make coworkers feel undervalued or ignored, ultimately leading to a breakdown in teamwork and collaboration.
Additionally, active listening is essential for building rapport and trust with coworkers. When Jane interrupts her coworkers, she may come across as impatient or disinterested, which can negatively impact her relationships with them.
To improve her communication skills and demonstrate respect for her coworkers, Jane should work on practicing active listening. This involves giving her full attention to the speaker, refraining from interrupting, asking clarifying questions when necessary, and providing feedback to show understanding. By enhancing her active listening skills, Jane can contribute to a more positive and productive work environment.