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John receives an encrypted document using asymmetric cryptography from Alex. Which process should Alex use along with asymmetric cryptography so that John can be sure that the received document is real, from Alex, and unaltered
Asymmetric cryptography is often regarded as Public-key cryptography. It often uses pairs of keys. The process that Alex should use along with asymmetric cryptography so that John can be sure that the received document is real is Digital signature algorithm.
In asymmetric cryptography, the both pair has a public key and a private key.The Digital Signature Algorithm is simply known to be a Federal Information Processing Standard for digital signatures.
DSA as it is often called is gotten from the Schnorr and ElGamal signature schemes.
It often used for digital signature and its verification and thus shows authenticity.
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Backup software creates backups and prevents you from losing all your data, so would backup software be considered an application software or utility software?
A). application software
B). utility software
Answer:I also think it's b because it litterlottery says or a utility software so obviously a utility software WOULD be considered a utility software.
Explanation:
Option(B). Utility software is the correct answer.
Antivirus, backup software, file managers, and disk compression tools are examples of utility software. These programs evaluate and keep up computers. These programs are designed with an emphasis on how the OS functions, and they carry out tasks to make the machine run efficiently.
What is a Utility software?A computer's databases, directories, and files are all backed up using backup utility software. It frequently works by creating an exact clone of the entire disk. If data loss happens, the user might be able to recover the lost data using the computer's backup utility tool.All systems and applications on a computer system that keep it functional are referred to as utility software.The utility software on a computer consists of parts that help the operating system to organize, maintain, and manage its performance under all conditions.In addition to supporting the computer's architecture, this kind of software is distinct from application software, which carries out tasks for the user.Utility software may need the consent of a user with administrative rights on the computer before executing its functions or being replaced.An operating system and a collection of utility apps are often installed when manufacturers create a computer.Although the user has the option to replace or install other utility apps, this utility software is generally seen as a part of the operating system. A computer's databases, directories, and files are all backed up using backup utility software.Often, it functions by making an exact copy of the entire disk. Using the computer's backup utility program, the user may be able to retrieve lost data if it happens to them.
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