Top network posts

• 11 What is the relation between the existence of a cryptographic hash function and the existence of a PRG?
• 6 Is there a metric function defined on $M_{n}\left( \mathbb{R} \right)$ such that the determinant function is not continuous？
• 6 The number of the positive integer solutions of $n = \prod_{i = 1}^{k}(x_{i} + 1) - \sum_{i = 1}^{k}x_{i} - 1$ given $n$.
• 6 How to draw a directed graph to show the relations among some notions?
• 6 Is there a standard definition of non-malleability for the encryption schemes?
• 5 Find monotonically increasing function $f$ on $[ 1,+\infty )$ such that $ x ( f ( x^{2} ) + 1 ) = f ( x ) ( x^{2}+1 ) $?
• 5 What is the relation between computational security and provable security?
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