D.W.

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	8,034 reputation	bio	website		visits	member for	1 year, 9 months
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May 13	revised	Why is the following RSA PRNG cryptographically secure? added 34 characters in body; edited title
May 13	answered	Why is the following RSA PRNG cryptographically secure?
May 13	answered	Designing a security system from scratch with a custom protocol, suggestions needed
May 12	revised	Combining LFSRs for Stream Ciphers: Why do we need high non-linearity? added 622 characters in body
May 12	comment	Combining LFSRs for Stream Ciphers: Why do we need high non-linearity? @DilipSarwate, absolutely, great point! My answer keeps it simple and assumes the feedback polynomial / tap locations are known. Yes, if the feedback polynomial is not known, then twice as many bits of known keystream are needed, and more sophisticated methods are needed. Thank you for pointing this out!
May 11	answered	How to do a literature search
May 10	reviewed	Approve suggested edit on Combining LFSRs for Stream Ciphers: Why do we need high non-linearity?
May 10	answered	Combining LFSRs for Stream Ciphers: Why do we need high non-linearity?
May 10	comment	How to do a literature search I'm hoping this may generate a good reference question that will be generally applicable, so when people have questions about how to find research papers on topic X, we can refer them to this question for a good starting point.
May 10	asked	How to do a literature search
May 10	comment	random number generator 10-side dice alternative I don't understand. What problem are you trying to solve, that dice don't solve? Do you just want something different for the sake of being different? Or do you have some specific metric that you're trying to optimize, where you want something that's better than dice on that metric? If the latter, can you be more explicit about what that metric is?
May 10	comment	Cryptography based upon neural networks Jager, do you know how to do a literature search? If not, I suggest that you ask a question about how to do a literature search/review; that will be broadly useful to others. Alternatively, if you do know how to do a literature search, your first step should be to conduct a literature review first, to find all the research you can that seems related to this subject, and then read the papers you've found. That should help you figure out whether you have a more concrete, answerable question about this subject.
May 10	revised	Cryptography based upon neural networks Revise the question to be something closer to answerable -- though it's still too broad.
May 10	comment	Trying to better understand the failure of the Index Calculus for ECDLP What's the question again? I see some reasonable statements, but I'm having a hard time understanding what is the question you want an answer to. Can you try to formulate a concrete, answerable question?
May 10	answered	random number generator 10-side dice alternative
May 10	comment	Cryptography based upon neural networks This site is not a good place for general, open-ended discussions ("I would like you to express your opinions about [broad subject]"). Instead, it is for concrete questions with a correct answer. Please read the FAQ before asking questions.
May 10	comment	Security of Salsa20 with some known plaintext? It depends. There are many details. For instance, if you use a key derived from a password, it'll likely be insecure. If you fail to use authenticated encryption (e.g., a MAC), it'll be susceptible to chosen-ciphertext attacks. There are a number of ways to go wrong. Usually you shouldn't try to encrypt in this way; instead, you should use an existing, well-vetted scheme/software, like GnuPG
May 9	reviewed	Reject suggested edit on What kind of adversary is the cloud?
May 9	revised	What kind of adversary is the cloud? added 148 characters in body
May 9	comment	What kind of adversary is the cloud? It might be silly for Amazon to attack their customers, but that doesn't mean the semi-honest threat model is a good one for treating Amazon's cloud services. See my answer for explanations/details on why.