phan

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4 Questions

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4	In RSA, how to make sure that $p-1$ and $q-1$ are still hard to factorize?
4	In the Paillier cryptosystem, is there a method to judge whether an encrypted number is less than 0 (without the private key)
3	How hard are discrete logarithms problems in $\mathbb Z^{}_{n}$ and $\mathbb Z^{}_{n^2}$, where $n$ is the RSA $n=pq$
0	Strong RSA problem in $\mathbb Z^*_{n^2}$

62 Reputation

+15	How hard are discrete logarithms problems in $\mathbb Z^{}_{n}$ and $\mathbb Z^{}_{n^2}$, where $n$ is the RSA $n=pq$
+20	In RSA, how to make sure that $p-1$ and $q-1$ are still hard to factorize?
+20	In the Paillier cryptosystem, is there a method to judge whether an encrypted number is less than 0 (without the private key)

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6 Tags

0 rsa × 2	0 homomorphic-encryption
0 paillier	0 order-preserving
0 factorization	0 discrete-logarithm

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