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visits member for 1 year, 9 months
seen Jan 28 at 21:20

Jul
2
awarded  Curious
Jan
27
accepted Why do we use 1024 / 160 bit primes in DSA?
Jan
27
comment Why do we use 1024 / 160 bit primes in DSA?
Thanks a lot!!!
Jan
27
asked Why do we use 1024 / 160 bit primes in DSA?
Jan
21
awarded  Yearling
Jan
14
accepted Possible to check if $a \in \mathrm{QR}_n$?
Jan
14
comment Possible to check if $a \in \mathrm{QR}_n$?
Thank you for your good explanation!
Jan
13
asked Possible to check if $a \in \mathrm{QR}_n$?
Oct
2
comment Non-interactive proof that an element is in a subgroup
Thx for your comment. I appreciate it, but what I don't get is why we need rewinding to proof the ZK property? I have done some further research. Can you please look at my edits above? In the paper they don't give a proof, they just say like "this is a standard procedure".
Oct
2
revised Non-interactive proof that an element is in a subgroup
added 1790 characters in body
Sep
30
comment Non-interactive proof that an element is in a subgroup
yes, but the question which ruins my sleep is why the zero-knowledge property is not fulfilled using a large challenge? ;)
Sep
30
comment Non-interactive proof that an element is in a subgroup
I mean instead of running the zero-knowledge protocol 160 times with challenge $\in_R \{0,1\}$ for proper security level run it only once with challenge $\in_R \{2^{159}, \ldots, 2^{160}-1\}$
Sep
29
asked Non-interactive proof that an element is in a subgroup
Sep
10
revised Question about Fermat's little theorem
fixed theorem
Sep
10
accepted Question about Fermat's little theorem
Sep
10
comment Question about Fermat's little theorem
Thanks Alex!!!!
Sep
10
suggested suggested edit on Question about Fermat's little theorem
Sep
10
asked Question about Fermat's little theorem
May
8
awarded  Commentator
May
8
accepted What does $(\mathbb{Z}_n^*)^2$ mean?