Exam 312-50v13 topic 1 question 293 discussion

Answer: A Key stretching is a cryptographic technique used to strengthen weak or low-entropy passwords or keys by making the process of deriving the final key computationally expensive and time-consuming — for both users and attackers. Why It's Used: Many users choose simple or short passwords, which are vulnerable to: • Brute-force attacks • Dictionary attacks • Rainbow table lookups Key stretching helps slow down these attacks by increasing the work factor needed to test each password guess.