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visits member for 3 years, 1 month
seen Nov 22 at 3:35

I develop games for fun.


Nov
7
comment Crypto-Compression Algorithms?
The usual constraint in cryptography thought experiments is that the attacker knows everything but the keys to the encryption, so he would be aware of the reduction in size. In any case, this is just a thought experiment to demonstrate the concept that more might not be better.
Oct
15
comment How long does it take a quantum computer to brute force AES?
the biggest number factored so far by a quantum algorithm is something like 64. That's six four. Don't hold your breath.
Jul
6
comment Guarding against cryptanalytic breakthroughs: combining multiple hash functions
suppose I have a very short message, and H(x)=x. Again, a very bad hash function. But catenating that hash with any other hash function reveals the message.
Jul
5
comment Guarding against cryptanalytic breakthroughs: combining multiple hash functions
Suppose I design a very bad hash, such that all it's output bits are ones. How would concatenating that hash with another hash be as strong as the other.
Jul
5
comment Guarding against cryptanalytic breakthroughs: combining multiple hash functions
My argument is that if you can design hash functions with certain characteristics, if you just pick two hash functions and combine them, you might. So yes, you might improve things, or not.
Jul
1
comment Master keys for decrypting?
Interesting. Does that mean that the key escrow system could be applied to any underlying encryption algorithm?
Dec
23
comment Why is AES resistant to known-plaintext attacks?
the classic random number generators you find in Knuth have only a couple integers as their internal state.
Dec
23
comment Time Capsule cryptography?
use public key encryption to communicate with your relay site :)