Questions tagged [allowed-questions]

For whether specific types of questions are allowed on this site or not.

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9
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2answers
120 views

How should questions be handled involving code?

(Full disclosure: This is a Q&A that was requested from me to document our current policies on handling questions involving code.) So the question: Assume I am looking at a question that involves ...
6
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1answer
232 views

Should we allow generic questions about block chain?

You may or may not have noticed that BitCoin.SE and Ethereum.SE have narrowed their scope. Nowadays that means that they only accept questions that are about their specific crypto currency and block ...
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2answers
60 views

If I'm searching pictures to illustrate some crypto primitives? Can I ask it on th SE?

For example, a good picture to illustrate ZK proofs. Should I ask on the SE? Or in the Meta-SE?
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4answers
122 views

There is no catch-all off-topic close reason

Most sites have an off-topic close reason stating that the question is not on-topic according to the help center, as a catch-all when the more common specific close reasons aren't relevant. We used to ...
3
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2answers
33 views

Is cryptosystem recommendation on-topic?

I'm writing some code that needs to run with as small a footprint as possible, because it's on an embedded device. I want to encrypt its communications. I'm trying to find a good, resource-unintensive ...
5
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4answers
151 views

Are we allowed to illustrate questions about cryptographic algorithms with executable code?

According to @Maeher, we are not allowed to illustrate questions on crypto.stackexchange.com with executable code—such questions are permissible only on stackoverflow.com: https://chat.stackexchange....
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3answers
77 views

inappropriate migrations of crypto questions to stackoverflow

Consider this question: https://stackoverflow.com/questions/56186844/generating-hchacha20-internal-state-with-existant-chacha20-implementation How is that question off topic when reusing blowfish ...
1
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1answer
29 views

Should we change our response to questions asking for recommendations?

Every once in a while (new) users ask for recommendations for learning about cryptography, i.e. this question. These recommendations include: Literature Books Articles PDF Exercises Webpages ...
10
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4answers
276 views

Are questions asking what [crypto term] is and used for on-topic?

The question What is a Pedersen commitment? was closed as off-topic, with justification that is is a "Requests for literature, software or similar recommendations", when I do not see that it is. I ...
10
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1answer
97 views

Should we allow crypto-specific tool related questions?

Some tools are so specific to crypto that it may well be that this Q/A site has the best knowledge about those tools. These are mainly tools for crypt-analysis such as tools to test randomness or ...
1
vote
1answer
24 views

Should we generally require hardware-related questions to specify specs?

I've just stumbled over one of our hardware-related Q&As again and it reminded me of something that always itches me when it comes to missing hardware specs. For examle, How fast a middle-class ...
5
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1answer
111 views

Do we want bitcoin/cryptocurrency related questions? A cryptocurrency tag?

This question is inspired by this recent comment. My first thought in response to this was to create a cryptocurrency tag. However, we have been receiving a lot of questions here about bitcoin/...
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1answer
23 views

Is it OK to ask an unanswered question again, but written better?

I am new to this forum, so still feeling out the rules. I have asked a question and I fear I have added too much detail, where the actual question has got lost (this was pointed out to me in the ...
8
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1answer
113 views

How can we modify our close reason and help center texts to allow “some” coding questions?

We recently had the following question: Timing vulnerability of byte array equality test? quote: Would the following code to test MAC equality leak timing information ? ...
-3
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1answer
176 views

Can crypto.SE help with implementing a secure protocol?

Having lurked here for a while, I have a problem understanding how crypto.SE can help someone in the real world, other than academically. I've learnt a lot about aspects of cryptography and some of ...
9
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3answers
211 views

(When) are reference requests actually on-topic here?

I recently realized that we have some contradictory documentation on our site (and, probably, contradictory beliefs and opinions among users) about the topicality of questions asking for off-site ...
2
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3answers
87 views

Do we want to allow questions asking for random test vectors?

I recently stumbled upon a question asking for the calculation of a random test vector: An example of CCM - AES Mode need to test if my AES CCM mode works correctly, but I don't find any ...
0
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0answers
28 views

Is it appropriate to post algorithm designs here for review and comment? [duplicate]

Is it appropriate to post a design of an algorithm to be reviewed and commented on if I provide enough information about it (drawings, technical details)?
0
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3answers
121 views

Suggestion for policy of banning questions

I am writing this with my own banned question in mind. As a suggestion for ban policy: When a mod decides to ban certain questions which are related to the field or expertise of your site but for ...
6
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0answers
52 views

Is asking for help with new proofs on-topic?

Is it appropriate and on-topic to ask for help with provable security? For example, would it be reasonable to ask for technical assistance in applying the Leftover Hash Lemma to show that a sum is ...
12
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3answers
233 views

How to deal with ransomware questions?

We have specific questions asking about breaking ransomware for CryptoLocker, CryptoWall, and now *.[MKKitana@india.com].wallet (which may be a variant of some other ransomware. All of these have a ...
4
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1answer
46 views

Are questions like “Is X covered by patents?” on-topic?

It looks like we don't have the clarification whether or not we want to allow (and if yes with which scope / restrictions) patent questions. So the question is: Do we want questions of the type "Is X ...
7
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1answer
90 views

Is it OK to ask whether a cryptographic function exist?

Is it on-topic to ask whether a given cryptographic function I’m describing in my question already exists (and how such a process would be called)?
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4answers
133 views

Are [crc] questions on-topic here, and should they be?

Thanks to a recent question, I realized that we have a crc tag, with 17 questions and the following tag wiki excerpt (quoted verbatim): The Cyclic Redundant Check is non-cryptographic error-...
2
votes
1answer
45 views

Do questions on whether a hash function is almost universal belong here or on math.SE?

Do questions on whether a hash function is almost universal belong here or on math.SE? They seem to belong both places: on math.SE because the question is about mathematics, and here because ...
2
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0answers
53 views

Canonical resources on “Identify this cipher” questions

There have been a number of questions along the lines of "what cipher was used to encrypt this data", and they have all been (rightly) closed as off-topic (as discussed here). I think it's correct to ...
3
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1answer
109 views

Should we add a close reason for requests for cryptanalysis of amateur schemes?

There are a bunch of questions asking to evaluate the security of an amateur cipher, clearly without knowing pretty basic stuff on cryptography or how SE works. You all know the type of question I'm ...
2
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1answer
36 views

What is the best way to deal with repeated off topic questions?

Earlier this week, a request of decryption of a text encrypted with an unknown classical cipher was posted on Crypto.SE. I flagged the question as off-topic but recognized the encryption as Vigenère ...
4
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3answers
136 views

What is considered to be off-topic?

I'm new to this site. When I posted my first question here, I tried to follow the advice on the Tour site: My question was directly related to cryptography, and it was neither "opinion-based", nor ...
3
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4answers
118 views

Should the linked question really be treated as a “request to analyze…”

So, we have this question, which currently has 4 close votes. All 4 are votes for "Requests for analyzing or deciphering a block of data are off-topic here, as the results are rarely useful to anyone ...
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0answers
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Can I submit an encrypted message to see if its breakable here? [duplicate]

For some reason I have been thinking a lot about encryption lately. I'm a CS major, but an encryption novice. The skeptic in me feels making a code that uses a fairly simple algorithm would be a lot ...
3
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1answer
54 views

Should we allow PKI related questions?

If I take a look at our Tour this crypto site is for questions about: Asymmetric and symmetric cryptographic algorithms Cryptographic protocols and cryptanalysis techniques Hashing Entropy and ...
4
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1answer
64 views

Can I ask a Proof Of Work related question on crypto.SE?

I am not sure how far the concept of Proof Of Work qualifies to be on topic with crypto.SE which is why I would like to ask recommenations here first. The question is related to me not understanding ...
5
votes
1answer
104 views

Are questions about identifying encryption algorithms allowed?

I have an encryption algorithm I pulled out of a binary. I'd like to identify what the algorithm is, but I don't have the requisite crypto experience. The code is "high level" C# code, as ...
6
votes
1answer
93 views

The help center indiscriminately describes “random number generation” as on-topic

From the help center page “What topics can I ask about here?”: Random number generation. Yet, on a recent question: This question is squarely off-topic on crypto.SE because it is about a ...
5
votes
1answer
87 views

Is it OK to ask for program/software recommendations here?

Is it within scope of this site to ask about recommendations for crypto software, or is this site reserved for more abstract discussions about crypto algorithms or their implementation? For example: ...
5
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4answers
979 views

Coursera removal request

Update 2: This post is about this edit to this question Recently there was a suggested-edit asking for removal of one of the many "how to do cryptanalysis on a 1 time pad if used twice" questions? ...
2
votes
1answer
90 views

Are career questions on-topic for this site?

Are questions about preparing for a career in cryptography generally on-topic on this site? This came up in response to the following question https://crypto.stackexchange.com/q/12681/351, but I ...
2
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2answers
51 views

Are technical questions about programs on-topic?

I would like to understand a bit how Aescrypt works. Since I only know little about cryptography and programming, I wanted to ask a question about how the files are created by Aescrypt? For example, ...
3
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1answer
73 views

Would a question regarding a specific crypto library be on topic @ crypto.SE?

For example, would a question asking what the Blowfish structure BLOWFISH_CTX or the variables xl and ...
7
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1answer
167 views

Is code review in scope?

Is reviewing the cryptographic aspects of a block of code on-topic for this site? Example: Am I insecurely implementing AES in Python?
4
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2answers
164 views

Should we disallow questions on schemes which do not follow Kerckhoffs's principle?

Firstly, I apologise for the short body of the question. This is somewhat related to allowing amateur ciphers on the site but also relates to questions such as this one. Questions on such schemes ...
0
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1answer
81 views

How much science fiction should be handled here “in theory”?

Frequently, I stumble upon questions that are purely hypothetical and assume a specific technical base which does not yet exist. What I mean are questions going somewhat like this: "…let's assume that ...
5
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2answers
245 views

What to do with the Snowden questions?

I am specifically referring to the Snowden question follow-up here. People have voiced concern over this type of question in comments, and there have been suggestions of taking this to Meta. This ...
6
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1answer
99 views

Is describing a technology used in cryptography (Smart Card) on-topic?

I recently jumped on making a rather long answer to this question: What is a Smart Card?, without asking myself: is it on-topic? Also, my answer contains a lengthy historic/introductory part, with ...
5
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2answers
118 views

What sort of “cryptosystem verification” would be on-topic/allowed here?

I'm considering posting a design of a proof-of-work system here and asking a few questions about it, but in the FAQ, it specifically states that you do not want questions about "cryptanalysis of a ...
4
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1answer
172 views

Are legal issues surrounding cryptography on topic here?

This question titled "Hash Digest Legal Status" was recently asked and closed as off topic. Since I couldn't actually find anything in the FAQ explicitly disallowing such questions, nor any past meta ...
4
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2answers
191 views

Are questions about steganography on topic here?

With the recent proposal for a Steganography stack exchange over on Area 51, I would be interested to know if Steganography questions are on-topic here on Cryptography. I suggested that they might in ...
4
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1answer
88 views

Are existence questions on topic?

I've been going through some of the unanswered questions and I've seen a few that are very difficult to answer. They go something like this: I want to do X. Does there exist a tool/protocol/...
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2answers
175 views

Implementation List Questions

It seems we have had a few questions recently asking for references on implementations. For example: Are there any Implementations of Secure Indexes? How to implement order preserving encryption or ...