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I like crypto. Need I say more?


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.
Dec
24
reviewed Leave Open How does a backdoor in the RNG enable an attacker to break encryption protocols?
Dec
24
reviewed Leave Open Significance of repetition in XOR cipher text
Dec
24
answered Significance of repetition in XOR cipher text
Dec
24
reviewed Leave Open Is there any strong enough pen-and-paper or mind cipher?
Dec
24
reviewed Leave Open PGP encryption options
Dec
24
reviewed Leave Open Keeping IV secret for AES CFB mode
Dec
24
revised FHE - Brakerski's “Scale Invariant” Scheme
added 52 characters in body
Dec
24
revised FHE - Brakerski's “Scale Invariant” Scheme
added 112 characters in body
Dec
24
answered Oblivious Transfer where neither party learns the index of the message
Dec
23
reviewed Reopen Stream vs Block cipher: Synchronising and the receiver
Dec
21
comment Solve a Modular Exponentiation
Is it safe to assume that this is RSA?