# All Questions

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34 views

### Do we need the license-key tag?

The tag license-key was first used on November 14, 2011. Despite being around this long, it's only got twelve questions, of which two have negative vote counts. Perhaps one could say that license keys ...
69 views

### Do we need the noise tag?

The noise tag is firstly used in Aug 12,2020 and currently there are two questions. The noise in modern cryptography is almost inevitable. We use it to mitigate from the determinism and in hiding, etc....
23 views

### How to decide making an exception against our community rules

As a community, we agreed on many subjects, on-off topics, homework questions, etc. In a recent question, our one of venerable user gave an answer with the comment Well, we generally don't analyze ...
49 views

### What can I do to help Cryptography site?

You like this site, and you would like to help. You might be asking yourself the question what can be done to enhance the site and site experience. Quite often these are simple things, but such things ...
2k views

### Squeamish Ossifrage: I'm leaving Crypto.SE indefinitely

I'm leaving Crypto.SE indefinitely. (Also the rest of Stack Exchange, but I'm at best a supporting actor in any other scene on this stage.) I've temporarily withdrawn from SE addiction before. This ...
79 views

### Could Wikipedia's articles be considered as a reference for CryptoSE posts?

Wikimedia websites articles could be not bad for some hint or clue, but when are we dealing with mathematics and physics that need to be precise and reliable and provable, referencing to Wikipedia for ...
20 views

### Do we need a multiple-recipient(-encryption) tag?

Do we need a multi-recipient or multi-recipient-encryption tag? That would be used for MRES (Multiple-Recipient Encryption Scheme) specific questions? I think that MRES and related acronyms (MRSES for ...
45 views

I think due to Corona pandemic or any other known reasons recently CryptoSE is slowing down. Can we have some analytics about the number of visitors or some service like Goole Analytics? Maybe there ...
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 ...
75 views

42 views

### Fun fact+How rare is this?

Primes are of the very important to number theory and number theory has a large application public-key cryptography and computer science, how odd is this, that in this time there is not even one prime ...
41 views

### Migration to new MarkDown engine (CommonMark)

Our site is scheduled to migrate to the new MarkDown handling on the 17th of June, 2020 as explained in this meta.SE post. If you have any issues with the handling of markdown then please let us know. ...
116 views

### 2020 Moderator Election - Results

Cryptography's fourth moderator election has come to a close, the votes have been tallied and the new moderator is: They'll be joining the existing crew shortly—please thank them for volunteering, ...
57 views

### 2020 Community Moderator Election

The 2020 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,...
177 views

### 2020 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 ...
42 views

### Do we need separate GHASH, GCM, and AES-GCM tags?

GHASH is used essentially only in AES-GCM. The ghash tag was introduced in late 2018 and applies to only five questions that were all asked within the span of one week. In contrast, there are over ...
34 views

### Should we make personal anecdotes a no-no?

A moron (full disclosure: me) just vented personal anecdote in an answer, pretending it crypto-related when that's, at best, about computer security, with a mere 6 characters on crypto. Should he be ...
81 views

### 2020 Moderator Election Q&A - Question Collection

Cryptography is scheduled for an election next week, June 8th, 2020. In connection with that, we will be holding a Q&A with the candidates. This will be an opportunity for members of the community ...
1k views

### Using MathJax / $\TeX$ on the Cryptography site

Shortcut: see the community wiki answer below. Original question I need both a reference and examples relevant to crypto for the TeX dialect we can use on crypto.stackexchange.com. I know there is ...
32 views

### Handling of questions that match a good running CTF

This question was about a running Catch The Flag competition reportedly organized by German officials, with an especially interestign question. Asking on crypto.SE was no clear violation of the CTF ...
26 views

### Should we delete the answers of off-topic question so the the question is going to be deleted?

We have a lot of off-topic questions. Considering that within almost a year and a half, I've 881 close votes and this doesn't count the duplicates that I've found and for that I can not cast a close ...
119 views

### Moderator Election - Community Interest Check

We last had a moderator election back in late 2018, and we have had a moderator step down since then, so currently we are running with just 2 - Maarten and myself. Now, the good thing is that ...
123 views

### Congratulations to fgrieu for earning over 100,000 reputation points!

crypto.se has recently acquired our second 100k rep user! The first one was poncho. The user fgrieu has recently passed the 100k reputation marker. This is the second time this has ever happened on ...
130 views

### Do we need the theory tag

A recent question uses theory tag that has no meaningful relation to it. Currently, there are 6 questions about this tag and One of the questions is duplicate and the dupe doesn't have this tag. ...
100 views

### Community Promotion Ads — 2020

2020 has come! But… oops, where did the time go? It’s already March! Belated as it is, it’s time for a refresh of Community Promotion Ads! What are Community Promotion Ads? Community Promotion Ads ...
95 views

### Do we need to separate the combined tag pohlig-hellman for Pohlig Hellman Cipher and Pohlig-Hellman Algorithm

We have a tag pohlig-hellman with 32 question that stands for both Pohlig-Hellman symmetric cipher and the Pohlig–Hellman algorithm for discrete logarithm Nicely; the cipher's security relay on the ...
53 views

### How much background knowledge on cryptography should we expect from programmer askers?

There are some questions from some programmers demonstrating them lacking some of the basic knowledge required for writing secure or otherwise loophole-free programs. So, (maybe serving as an ...
67 views

### Do we need a security tag

Recently, on Jan 29 at 16:36 a first question appeared with a security tag. Now after that, there are only 4 questions appeared. Do we need this tag?
50 views

### Tag purpose: quantum-cryptography

There are currently 98 questions tagged quantum-cryptography. These largely fall into five categories: quantum key distribution, which is the only topic mentioned in the quantum-cryptography tag ...
63 views

### 2019: 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, ...
71 views

### Were those two questions about circular security really duplicates?

The question Does encrypting the key with itself make it easier to crack the ciphertext? was closed/merged with the question Encrypting a key with the same key using AES. However, I do not see a ...
29 views

### Math formatting: Overalapping with side bar

This formatting of this answer seems to overlap with the right sidebar: Is anyone aware how can this be fixed (by, say, forcing MathJax to create a new line) automatically?
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 ...
275 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 ...
44 views

### Should hard-problem be made a synonym of hardness-assumption?

Should the tags hard-problem and hardness-assumption be merged or be made synonyms of each other? They are both used for the exact same things (cryptographic hardness assumptions).
24 views

### About the tags hardness-assumption and hard-problem [duplicate]

Could you explain me the difference between these two tags with one example please?
62 views

### Is it appropriate or not to post open letter to standardization organizations here on meta or the main site?

I just sent an email to NIST commenting and enquiring about NIST-SP-800-90Ar1. The email has 3 parts: 1) option proliferation, 2) deriving seedlen for DRBGs based on hash functions, and 3) ...
61 views

### Should we edit names and acronyms that are not spelled correctly?

There are many instances where names and acronyms are not spelled right, or where dashes are missing or even introduced. Should we correct them? Examples: Different spellings of ElGamal Spelling of ...
178 views

Our current homework policy—for homework questions that demonstrate effort and are not simply copypasta of the exercise—is to leave hints in comments, not in answers. This means that we can't mark ...
237 views

### Congratulations to poncho for earning over 100,000 reputation points!

crypto.se has recently acquired our first 100k rep user! The user poncho has recently passed the 100k reputation marker. This is the first time this has ever happened on our site and as such is a ...
37 views

### Tag purpose: attack

Cryptography is all about defending against attacks by intelligent adversaries. What purpose does the attack tag serve that is not served by the mere use of Crypto.SE as a medium in the first place? ...
49 views

### Chat appears down

It appears Chat is down:
62 views

### Do we need rfc7748 tag?

The rfc7748 tag currently has 2 questions with 0 watchers. Do we really need this tag?
32 views

### Do we need SP800 tag

sp800 tag has only 3 questions with no watcher. Do we really need this tag? There is already nist with 117 questions and 4 watchers.
29 views

### Tag purpose: forgery

There are 45 questions tagged forgery; nearly all of them are also tagged either mac, signature, or authenticated-encryption, or tagged with a specific scheme like elgamal-signature—see search for ...
20 views

### Tag purpose: optimization

The optimization was created in only in July of this year and has no usage guidance or tag wiki. It has seven questions, most of which are about the colloquial use of the term ‘optimization’ to mean ‘...
201 views

### Should we accept edits by non-authors to put Wikipedia links on phrases?

We have had a number of edits recently that just put Wikipedia links on phrases, in posts that the editor was not the author of. Is this a desirable practice? For example, in https://crypto....
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?