Question: 2 nd try: divide input message as L & R with the same length then use secure PRF : 0 , 1 times 0

2nd try: divide input message as L & R with the same length then use secure PRF : 0,1\times 0,1->0,1
1. Canwedecrypt?
2. Isthissecure?(doesntdiscloseanyinformationonthemessage?)

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