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seen Jul 17 at 3:42

Kids in rectangles irritating sick urchins rattling foxes, directory.kirisurf.org lol


Nov
11
comment Are there public $p$ and $q$ numbers for use in DSA?
Where? I can't find any.
Nov
11
asked Are there public $p$ and $q$ numbers for use in DSA?
Nov
6
awarded  Benefactor
Nov
6
accepted Is this hand cipher any more secure than the Vigenère cipher?
Nov
1
comment Is this hand cipher any more secure than the Vigenère cipher?
The key is a repeated word, like in Vigenère.
Oct
30
comment Is this hand cipher any more secure than the Vigenère cipher?
Could you explain a bit how repetition would be bad? Unlike the Vigenère, crib-dragging and usual attacks on Vigenère don't seem to work. With multiple rounds, I am under the (false) impression that the multiple linear additions combined with the fixed permutation give a random-to-the-human-eye, nonperiodic, keystream.
Oct
30
comment Is this hand cipher any more secure than the Vigenère cipher?
That is in fact what I had in mind when I mentioned "very slow" hand ciphers...
Oct
30
awarded  Promoter
Oct
30
comment OFB or CTR mode without an IV
Theoretically the maximum size is 65536 bytes, but usually libraries send records with size 4096 bytes and less.
Oct
28
accepted How does SSL secure the initial handshake?
Oct
27
comment How does SSL secure the initial handshake?
So in the real world, as long as the servers are configured not to support weak ciphers, the Finished messages don't really matter?
Oct
27
comment How does SSL secure the initial handshake?
What if the attacker forces the client and server to negotiate the NULL cipher?
Oct
27
comment OFB or CTR mode without an IV
I'm assuming that the question was more like is it possible to use CTR or OFB mode securely without transmitting IV. I.e. for instance, start at all zeroes IV/counter and increment the counter for each message.. You seem to be the only person to have understood my question :)
Oct
27
comment How does SSL secure the initial handshake?
Yes, I mean TLS. SSL 3.0 isn't severely deprecated, though. I think it is still widely used. SSL 2.0 is the badly insecure one.
Oct
27
asked How does SSL secure the initial handshake?
Oct
27
awarded  Scholar
Oct
27
accepted OFB or CTR mode without an IV
Oct
27
comment OFB or CTR mode without an IV
Why does CBC mode require new IVs for each ~kilobyte sized record in the same connection though?
Oct
27
asked OFB or CTR mode without an IV
Oct
27
comment Random session key + predictable IV
One key is used for one side of a connection. The key initialization function is called once for each side.