# All Questions

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### How is the quantum-resistance tag different from the post-quantum-cryptography tag?

The prior thread on Quantum tag reform did not discuss quantum-resistance, and there are many more questions tagged post-quantum-cryptography. The dominant nomenclature seems to be post-quantum, not ...
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### Is it possible to retrieve “favourite” questions?

If I put a star on a question, could I retrieve it easily?
44 views

### My question or answer was denied

Is my pseudorandom generator difficult to guess the next output? My ask was hold on. Why did my ask hold on? I do not know what I do. Should I ask someone else to translate? If so, who should I ask? ...
27 views

### The Pedagogy of Cryptography is not always a Relevant Topic for this Website?

A properly-tagged, significant, and seemingly relevant post--Structure for an introductory course on cryptography?--has been locked as something of historical significance with the explanation that ".....
91 views

### Introduce “secp256k1” tag?

Currently, there is no tag for "secp256k1". Given how important Bitcoin has become, it might be time to have such a tag. Doing so would make it easier for users to find and answer secp256k1-related ...
96 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 ...
30 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 ...
30 views

### Is it ok to repost my question on another SE site?

Recently I've submitted two questions (see 1 and 2) that are directly related to cryptography, but their understanding is based on maths. I'm afraid that my questions don't receive enough attention ...
43 views

### one of my question was deleted

on Sep 28 '18 this question was removed (Which branches of mathematics are most important to understand cryptography?) without any reason, notification, there was not even an email that clarifies why ...
38 views

### Introduce “competition” tag

We currently have no competition tag. We however do have a SHA-3-competition tag. Should we introduce a "competition" tag and then convert the SHA-3-competition tags to that tag (together of course ...
279 views

### How to Promote Crypto.SE at Crypto Conferences?

Currently (20th - 23rd May 2019) EUROCRYPT 2019 is on-going. It has been confirmed that at least 4 of our more well-known members are there as well as several hundred other participants. Many of whom ...
40 views

### How to deal with my unanswered questions?

There are few questions i asked but did not get answers, what is the best procedure to deal with it ? re-posting , re-editing , etc .
135 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....
63 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 ...
152 views

### Is it OK to ask which cryptographic technique has been used?

My question has been put on hold and I would like to understand exactly why and how I can make it better. I have a software engineering background but cryptography is way out of my league, so I ...
33 views

### Backticks showing in fenced code

You can now use backticks for code on StackExchange, e.g. this is code between fences! ... which is just ... ...
28 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 ...
33 views

### What to do with non-specific questions about a specific crypto subject?

This recent question RSA-OAEP Padding scheme is about a specific crypto subject, but does not ask for something specific beyond "suggestions", making it borderline off-topic. I suggested reading an ...
35 views

### Should we merge [hybrid] and [hybrid-encryption]?

I just noticed that we the following pair of seemingly duplicate tags: hybrid currently has 20 questions, and a tag wiki that says: Something of mixed origin. In cryptography, typically a cipher ...
73 views

### New HNQ update: What kind of questions do set a good example for our site?

As requested, this is the sister thread to New HNQ update: What kind of questions don't set a good example for our site?. See the linked post for context. HNQ is the acronym for Hot Network Questions,...
193 views

### New HNQ update: What kind of questions don't set a good example for our site?

Hot Network Questions update There was recently an update to the Hot Network Question feature announced on meta.stackexchange. The following section appears in that post (emphasis mine): ...
224 views

### Is a two word answer to a complex question really acceptable?

Recently, I flagged a two word answer from 2015. OP was asking how we know a cryptographic primitive is secure, and the answer contained exactly two words. In fact, the answer was so short that hidden ...
63 views

### Do you know a good forum/site to send in your hand cipher

Is there any forum or website on the internet except reddit subs where you can send in your hand cipher to get it analyzed?
31 views

### Fixing possible errors in a question

This question and that near duplicate ask tree hashing/signing of JSON. They come with JSON examples that are plausible deviations from the standardized syntax (quoting character omitted or changed, ...
63 views

### Change the correct link for the $\LaTeX$ reference in our help center as well

According to this answer on the feature request "The MathJax help link should point to a more specific guide" we can change the link for our $\LaTeX$ help >>> here <<< to a site specific one. ...
59 views

### Change the link for the $\LaTeX$ reference in our help center

According to this answer on the feature request "The MathJax help link should point to a more specific guide" we can change the link for our $\LaTeX$ help here to a site specific one. This is the ...
86 views

### Some Ideas to reduce Analyze, help, how to decrypt the ciphertext questions

As all of you may know or notice that many people don't read the tour or the help section to ask questions. We have a lot of Requests for analyzing ciphertext, finding hash preimages, identifying ...
28 views

### Adding a Katz-Lindell Tag or Book-Question Tag or None

As many of you already know, questions from the book of Katz-Lindell, Introduction to Modern Cryptography, asked many times in our site. I want to create a tag for these questions as tag:Katz-Lindell ...
54 views

There is an extremely low-quality answer on the question "Largest integer factored by Shor's algorithm" This answer is clearly poorly received by the community: It sits at -9 score and has received ...
310 views

### Community Promotion Ads — 2019

2019 is here! And with the new year, as usual, comes a new iteration of Community Promotion Ads! Let’s refresh these for the coming year :) What are Community Promotion Ads? Community Promotion Ads ...
48 views

### 2018: a year in moderation

It's New Year's Day in Stack Exchange land... A distinguishing characteristic of these sites is how they are moderated: We designed the Stack Exchange network engine to be mostly self-regulating, ...
139 views

### December 2018 Community Moderator Election Results

Cryptography's third moderator election has come to a close, the votes have been tallied and the two new moderators are: They'll be joining the existing crew shortly—please thank them for ...
118 views

### Off-topic migration requests Cryptography

In this answer JNat told on Grace Notes: Just make a meta thread demonstrating the need, anyone can do it. We'll then review it and then enable the path if it seems appropriate. In Cryptography, ...
146 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 ...
184 views

### December 2018 Moderator Election Q&A - Questionnaire

In connection with the moderator elections, we are holding a Q&A thread for the candidates. Questions collected from an earlier thread have been compiled into this one, which shall now serve as ...
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### 2018 Community Moderator Election

The 2018 Community Moderator Election is now underway! Community moderator elections have three phases: Nomination phase Primary phase Election phase Most elections take between two and three weeks,...
132 views

### December 2018 Moderator Election Q&A - Question Collection

Cryptography is scheduled for an election next week, December 3rd. In connection with that, we will be holding a Q&A with the candidates. This will be an opportunity for members of the community ...
177 views

### How to handle “I want to begin with cryptography, but I don't know from where”-type questions?

Every now and then we have such questions from newcomers and this is a perfectly natural question for them. I thought that if we have a central guide (either here on meta or on the main site) here, ...
29 views

### The “hash-based-cryptography” tag same as the “hash-signature”?

I accidentally created and added info for the "hash-based-cryptography" tag, which I didn't know there had already been a "hash-signature" tag. I suppose they should be merged, given there's ...
91 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 ...
319 views

### Do we want to update the way we handle homework questions?

Just today and yesterday there were at least two questions that showed no effort and just copy-pasted their cryptography homework assignments. These questions will most likely see little activity ...
63 views

### Horizontal line on Crypto SE

I have just noticed that this "issue" apparently is something that only concerns Crypto SE. And yes, I get how nitpicky this might seem. ;) EDIT: Picture was taken from Crypto-meta (Questions, ...
41 views

### Add short reference to Mathjax Latex Commands [duplicate]

Some new users don't know and not familiar with the $\LaTeX$ syntax. It is perfectly normal but it would be better if we refer them a nice reference that explains the basics. Also, I suggest that we ...
16 views

### What to do with the questions that the OP has missing

Community automatically bumps some old questions that have no accepted answers to the top of the Questions/Active page. Unfortunately, for some of them, the OP has no longer exist as in this question. ...
48 views

### Capture the flag questions

Currently we seem to get quite a lot of capture-the-flag questions. The idea of these capture the flag challenges is not to ask for a solution on the internet, it seems to me. Should we possibly ...
202 views

### Cryptography's updated site theme is ready for testing!

As part of implementing the new unified themes across the network, we're gradually rolling out updated site themes for each site. As of today, we have enabled your updated site theme for testing. If ...
67 views

### Can we add a close reason: Finding preimages for hashes is off-topic

Not infrequently, we receive questions asking for help (meaning a solution) with finding the preimage for a hash function. Typically they ask for help "decrypting" a given hash value. The available ...
21 views

### What to do with cross site questions

There is an example https://math.stackexchange.com/questions/2910433/key-space-for-a-restricted-substitution-cipher Keys-space for a restricted substitution cipher These two questions are posted ...