| \paragraph{Problem 6 (20 points)} | |
| Let $F:= \{ f^n: \{0, 1\}^n \rightarrow \{0, 1\}^{n} \}_{n\in\mathbb{N}}$ be a family of one-way functions. | |
| Let $G:= \{ g^n: \{0, 1\}^n \rightarrow \{0, 1\}^{n-1} \}_{n\in\mathbb{N}}$ be a family of functions such that $g^n(x)$ outputs the first $n-1$ bits of $f^n(x)$. | |
| Show that there exists a family of one-way functions $F$ such that $G$ is NOT a family of one-way functions. | |