The whole idea of lower and upper bounds in Integration is that the lower bound represents the smallest value from which we start summing areas(smallest value of the interval) and upper bound is the value to which we sum to(maximum value of the interval).
(Just gave you an answer describing what it was because you didn’t implant a question so I gave you a definition)
DES is a commonly used symmetric encryption
A) is a commonly used symmetric encryption
<u>Explanation:</u>
DES stands for Data Encryption Standard. It is a symmetric key algorithm and is used for encrypting electronic data. It was developed in 1975. DES is one of the oldest encryption standards to be used in the industry.
The algorithm takes 16 rounds of permutations in order to encrypt data. But now, with the advent of technology, as new algorithms have been designed and put in use, DES is less preferable.
In the process of key generation, some keys generated sometimes turn out to be weak and hence are prone to attacks. If not for the weak keys generation, DES works perfectly fine and is an effective algorithm to encrypt data.
All ages
Explanation:
It is a toothpaste advert which most people use. It will also appeal to people who want to get whiter teeth
