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Rsa Bob Rsa Key Modulo N Size Secure 2048 Bits Public Power E 3 Provide Efficient Encrypti Q43794329

(RSA): Bob has an RSA key with modulo N in a size that should besecure, about 2048 bits an a public power of e=3 that shouldprovide an efficient encryption.

Alice wants to send bob a big file using a symmetricalencryption: Alice randomly chooses a key k for AES encryption andsends it to bob using RSA encryption as following: C=k modN and after that sends the file encrypted by AES using the keyk.

In order to decrypt it, Bob first calculates C = hmodN and then decrypts the file using AES with k as the key. is thisencryption indeed secure?

C=k modN C = hmodN Show transcribed image text C=k modN
C = hmodN

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Answer to (RSA): Bob has an RSA key with modulo N in a size that should be secure, about 2048 bits an a public power of e=3 that s…

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