Feistel proposed that we can approximate the ideal block cipher by utilizing the concept of a cipher, which is the execution of two or more simple ciphers in sequence in such a way that the final result or product is cryptographically stronger than any of the component ciphers.

Develop a function to create a document in the mongodb database “city” in the collection “inspections.” be sure it can handle error conditions gracefully. a. input -> argument to function will be set of key/value pairs in the data type acceptable to the mongodb driver insert api call b. return -> true if successful insert else false (require a screenshot)

Pl i need the answer now ! which one of the following is considered a peripheral? a software b mouse c usb connector d motherboard

How are we able to create photographs differently than 100 years ago? explain your answer in relation to your photograph you selected.