Question: WRITE out the library definition and the proof for why they are secure. Please do not copy/paste from another incorrect answer. I will rate! 3.
WRITE out the library definition and the proof for why they are secure. Please do not copy/paste from another incorrect answer. I will rate!

3. Let F be a secure PRF with -bit outputs, and let G be a PRG with stretch . Define F(k,r)=G(F(k,r)). So F has outputs of length +. Prove that F is a secure PRF
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
