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I like crypto. Need I say more?


Jan
14
revised Where does the $\varphi(n)$ part of RSA come from?
added 112 characters in body
Jan
14
comment Where does the $\varphi(n)$ part of RSA come from?
@fgrieu good point.
Jan
14
comment What is the difference between homomorphic encryption and homomorphic signature?
Your question is way too broad and will likely be closed. I did my best, but you need to be more specific in what you are looking for. A general introduction (like I gave), example crypto systems, implementations, how to apply it to your problem, or something else. Your question as stated is like saying, "I want to ride a scooter instead of a motorcycle. So tell me about scooters and motorcycles."
Jan
14
answered What is the difference between homomorphic encryption and homomorphic signature?
Jan
13
comment 2PC Private Set Intersection Optimized for asymmetrically sized sets
cleaned up comments
Jan
8
comment Deterministically combine more than one source of entropy
cleaned up some comments
Jan
6
revised How to judge if my work is meaningful in cryptography?
added 2 characters in body
Jan
4
awarded  Nice Answer
Jan
3
revised Where does the $\varphi(n)$ part of RSA come from?
added 3 characters in body
Jan
3
answered Where does the $\varphi(n)$ part of RSA come from?
Jan
2
reviewed Approve suggested edit on congruence tag wiki
Jan
2
awarded  Enlightened
Jan
2
awarded  Nice Answer
Dec
30
comment How do you distribute secret shares without knowing who to first distribute them to?
I'm confused, you want to distribute shares w/o knowing who to distribute them to? That seems impossible. Maybe an example usage scenario would help?
Dec
27
reviewed Leave Closed More technical details on the ongoing (alleged) Chinese cyberattacks
Dec
27
comment Is it possible to make time-locked encrytion algorithm?
@dionyziz, the decryption time could be secret shared at the sender with the receiver and the trusted third party. That way neither knows when decryption is allowed. Then the MPC decryption circuit would check decryption time against the current time and decrypt if it is later than the decryption time. If it is not later than that time, the MPC could output garbage. Then the TTP has no idea if decryption was successful or not. As to when this might be useful, that will depend on the application.
Dec
27
comment Is it possible to make time-locked encrytion algorithm?
@dionyziz Why can't the TPP know the time?
Dec
26
reviewed Approve suggested edit on acoustic-cryptanalysis tag wiki
Dec
26
comment Security Level Estimate when Cascading/Compositing Ciphers?
You might find this interesting.
Dec
26
comment Why is time-lapse cryptography not popular?
I was at IEEE S&P in 2009 and Chris presented it as a poster there. Also, I'm assuming this is one of the authors: crypto.stackexchange.com/users/2389/christopher-thorpe So they were at least still pushing it in 2009. I really liked the paper too.