Yes , it’s true. In a known-plaintext attack (kpa), the cryptanalyst can only view a small portion of encrypted data, and he or she has no control over what that data might be.
The attacker also has access to one or more pairs of plaintext/ciphertext in a Known Plaintext Attack (KPA). Specifically, consider the scenario where key and plaintext were used to derive the ciphertext (either of which the attacker is trying to find). The attacker is also aware of what are the locations of the output from key encrypting. That is, the assailant is aware of a pair. They might be familiar with further pairings (obtained with the same key).
A straightforward illustration would be if the unencrypted messages had a set expiration date after which they would become publicly available. such as the location of a planned public event. The coordinates are encrypted and kept secret prior to the event. But when the incident occurs, the attacker has discovered the value of the coordinates /plaintext while the coordinates were decrypted (without knowing the key).
In general, a cipher is easier to break the more plaintext/ciphertext pairs that are known.
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Given that Loadrunner is a software testing tool, I'm assuming that the software development team member who would make the most use of that tool is A. a software engineer, because that is the person who creates software and then tests it.
Answer:
var courseTitle ="Principles in Information Technology and Computation";
var result =courseTitle .charAt(2);
Explanation:
Following are the code of javascript code that read the 3 character
var courseTitle ="Principles in Information Technology and Computation";
var result =courseTitle .charAt(2);
document.write(result)
;
The charAt method return the character at the specified position in the string.We can just give the index number in which we find the character at the specified position .