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SHow step and explain!

2-12. [4 marks Ransomware such as WannaCry uses encryption to encrypt the files on a victim's computer, then demands that they pay a ransom to be able to decrypt their files. Read about how WannaCry's encryptions works in the "Ransomware Analysis" section of the Wikipedia article about WannaCry: https://en.wikipedia.org/ wiki/WannaCry_ransomware_attack a) Explain what cryptographic operations happen after the WannaCry malware is installed. What term did we use in class for when different types of encryption are used together in this way? (b) Why should the design of the system make it impossible for users to decrypt the files without paying the ransom? (c)According to the "Defensive response" section of the Wikipedia article, re- searchers were able to create a tool that allowed some users to be able to decrypt their files. What was the flaw in the WannaCry malware that enableod this tool to be successful