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Jun
14
reviewed Reject Assistance Cracking Classical Cipher
May
30
comment Applying multiple hash functions to improve security?
I've closed this for now as a duplicate of the other question, the discussion on there should help I hope :) If your question is different (and I'm just not seeing it), do feel free to edit/reply to me here and we can look at re-opening it.
May
25
comment After implementing a novel encryption algorithm, how would one go about analyzing its security or get help from others in doing so?
Guys, just a friendly note - if you're providing an answer to a question, use the answer box, not the comment box. Big hint - some of these comments are semi answers! :)
May
24
revised How do I generate a session key using the Diffie Hellman algorithm?
Tidy up.
May
23
comment Is it secure to use the hash of key as the IV in AES encryption?
Welcome to crypto; your question was migrated here by the SO mods as it is a better fit here. Feel free to register here to receive notification of your responses :)
May
22
revised Order of cascaded ciphers
edited tags
May
20
reviewed Approve Can you create a strong blockcipher with small blocksize, given a strong blockcipher of conventional blocksize?
May
16
comment ECIES protocol - what does the || operation mean?
@eXPi yep. It also means, in this case, that the output of the KDF is split into two parts - one part for each key.
May
16
revised ECIES protocol - what does the || operation mean?
Better title, spelling etc.
May
16
answered ECIES protocol - what does the || operation mean?
May
16
comment Assistance Cracking Classical Cipher
Also, if you feel the FAQ can be improved, do weigh in on meta :)
May
16
comment Assistance Cracking Classical Cipher
As I wrote that FAQ, I'll weigh in with what I think - the "challenge people to decode something" was meant to deal with "please decode XYZ bet you can't !11!!1"-type questions, of which we've had a few. It's not meant to discourage questions which are a decent attempt at cryptanalysis, although I think they do need to be reasonably answerable. As is, I think we could do with as much information as you can give - perhaps the results of your frequency analysis, for example? However, I don't see the need to fire a mod close vote at it, although the community or other mods may disagree :)
May
14
revised Difficulty of breaking RSA for a given key size
Quick spelling fix :)
May
12
comment Is XOR in a CBC-like mode secure?
I went for CBC-like as that's the best I could explain it, as opposed to just "this algorithm", but feel free to improve, anyone. If I can come up with a better one, I will, when it's not so late :)
May
12
revised history wiki excerpt
Bug report test
May
12
awarded  Tag Editor
May
12
revised history wiki excerpt
added 1440 characters in body
May
12
comment Is XOR in a CBC-like mode secure?
Hello, welcome to crypto; I edited your title to be a little more descriptive (I realise you probably didn't know what to put as the title :)) - if you want to improve it, or roll it back, there is an edit link directly underneath your question which you can use at any time :)
May
12
revised Is XOR in a CBC-like mode secure?
A slightly better title.
May
11
revised How were the AES key and block length subsets of Rijndael selected?
Better title