Cris Stringfellow

less info
163 reputation
7
bio website op.to/sO+
location Taipei & Hong Kong
age 31
visits member for 1 year, 11 months
seen Feb 6 '13 at 9:37

There's no such thing as "beautiful code"

Beauty is in the design, the concept, the algorithm.

The closer you approach the design, the concept, the algorithm -- the more beautiful the code, but the code itself is never beautiful.


Feb
3
comment Why would this method of discrete logarithm finding not work?
Okay I see the logic of your reasoning. It seem I do not have something here.
Feb
2
comment Any efficient text-based steganographic schemes?
You could automatically replace words with 'synonyms'. I'm sure it would if it was very frequent. Although there must be lots of activity on there anyway. If you need high thruput...maybe a network of twitter robots faithfully reposting various news articles 24/7....there's enough content and control in such a stream you could set up some stego on it.
Feb
2
comment Why would this method of discrete logarithm finding not work?
Cool, thanks for the suggestion. I will do this eventually.
Feb
1
comment Why would this method of discrete logarithm finding not work?
Thanks for that, that is really awesome! (b^i).F just means F multiplied by ith power of b. It looks good.
Jan
31
comment How to best obtain bit sequences from throwing normal dice?
Good point. I didn't see that.
Jan
31
comment Discrete log analog of ECM factoring algorithm?
The exponent of a factor of g (g = b**k) is smaller than k.
Jan
31
comment Discrete log analog of ECM factoring algorithm?
It is kind of equivalent. If you take m = b**i n = b**j and compute mn mod p, finding i+j is the discrete log. So if you can factor mn mod p, where one factor is a known power of b, that reduces the problem to determining the exponent of the other factor, which is by definition smaller (outside of its congruence class mod p).
Jan
31
comment How to best obtain bit sequences from throwing normal dice?
How best to ? Slowly.
Jan
31
comment Question about use of IV in this cipher
@StephenTouset Yes, I will. Thanks.
Jan
30
comment Question about use of IV in this cipher
Thanks I'll check that.
Jan
30
comment Question about use of IV in this cipher
Why should it be so independent?
Jan
30
comment Question about use of IV in this cipher
By the initial encryption do you mean where the IV is encrypted? Or when the plaintext is?
Jan
30
comment Question about use of IV in this cipher
Okay concerns : 1) It's not CSPRING, I generate two 1184 bit random numbers via python's random.randint() (37*32 bit words packed), then take the middle 1184 bits of the product. I think it's good, but not great. 2) Even though the key is scheduled I am concerned that a) the scheduled key_a is used to encrypt the IV, b) the (unscheduled) key_a is combined with the (unencrypted) IV and rescheduled, then the (encrypted) IV is prepended to the ciphertext. It just seems that could not someone get some correlation from that prepended encrypted IV? Even though all stream outputs are incompressible.