zxcvbn
dumb-password-rules
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zxcvbn | dumb-password-rules | |
---|---|---|
59 | 16 | |
14,664 | 2,976 | |
1.0% | -0.0% | |
0.0 | 6.9 | |
about 2 months ago | about 2 months ago | |
CoffeeScript | Nunjucks | |
MIT License | MIT License |
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zxcvbn
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Show HN: A lightweight PHP library for checking password strength
Lightweight is an understatement here.
A client's project (with not necessarily technical customers) has had pretty reasonable success using the Dropbox originated library[1] for this, `zxcvbn`[2], on both frontend via js (for "instant" feedback) and on the backend via php (to enforce the requirements when writing password hashes to the database)
1: https://dropbox.tech/security/zxcvbn-realistic-password-stre...
2: https://github.com/dropbox/zxcvbn
- Zxcvbn: Low-Budget Password Strength Estimation – Usenix (2016)
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I updated our famous password table for 2023
use zxcvbn to check your password strength more thoroughly
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I hope the common password whitelisters at Microsoft still get therapy benefits to share the unobfuscated language they were subjected to.
source if anyone wants the whole list https://github.com/dropbox/zxcvbn/blob/master/data/passwords.txt
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How long can a password be with the new login system?
Password strength is evaluated based on the zxcvbn library.
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How hard could it be? Sorting words alphabetically in Rust
In contrast, let's consider the password "zxcvbn214". How might we assign an entropy to this password? Is it 369? Or 266 * 103? Anyone familiar with a QWERTY keyboard or Dropbox's password strength estimator knows that "zxcvbn" is hardly a random sequence of letters. This same principle applies to "l33t" speak, e.g. replacing all "e"s with 3s and "a"s with 4s. These strategies may "trick" simple entropy calculations into estimating a high entropy, but it won't trick sophisticated attackers. This leads to strength over-estimation, which is, I argue, the worst thing we can do in this context.
- Zxcvbn: Low-Budget Password Strength Estimation
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TIL There's Another YAML
> except for ZXCVBN
You mean the Low-Budget Password Strength Estimator?
https://github.com/dropbox/zxcvbn
Yeah, that name is totally legit.
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Which tool can crack this password so fast?
For any part of the password that the zxcvbn cannot match to a known pattern, it uses a brute-force cardinality of 10, i.e., it estimates that the number of guesses required to crack a password or password segment of length N is equal to 10N (equivalent to the number of guesses required to exhaust all possibilities if your password consisted only of numbers).
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Bitwarden Design Flaw
We took a similar approach to passphrase stretching in EnvKey[1] v1 (EnvKey is a secrets manager, not a passwords manager, but uses end-to-end encryption in a similar way). We used PBKDF2 with iterations set a bit higher than the currently recommended levels, as well as Dropbox's zxcvbn lib to try to identify and block weak passphrases.
Ultimately, I think it's just not good enough. Even if you're updating iteration counts automatically (which is clearly not a safe assumption, and to be fair not something we did in EnvKey v1 either), and even with safeguards against weak passphrases, using human-generated passphrases as a single line of defense is just fundamentally weak.
That's why in EnvKey v2, we switched to primarily using high entropy device-based keys--a lot like SSH private keys, except that on Mac and Windows the keys get stored in the OS keychain rather than in the file system. Also like SSH, a passphrases can optionally be added on top.
The downside (or upside, depending how you look at it) is that new devices must be specifically granted access. You can't just log in and decrypt on a new device with only your passphrase. But the security is much stronger, and you also avoid all this song and dance around key stretching iterations.
1 - https://github.com/envkey/envkey
2 - https://github.com/dropbox/zxcvbn
dumb-password-rules
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Here's a roundup of the best UX and design links from the last few weeks, hope you find it useful! How to prioritise user problems, find better alternatives to dark patterns, understand hypotheses, manage difficult stakeholders, transcribe audio and draw the rest of the owl.
Dumb password rules – Naming and shaming the worst offenders.
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Dumb Password Rules - a compilation of websites with dumb password rules
Yeah, someone updated their github readme, and they just said "there is an about page"
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Show HN: A compilation of websites with dumb password rules
I'm glad you enjoy it! If you have any sites you like to add, please feel free to contribute. https://github.com/duffn/dumb-password-rules/blob/main/CONTR...
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Paypal silently truncates passwords to 20 characters
https://github.com/duffn/dumb-password-rules has a list of sites with dumb password rules
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Rund 230 Millionen Deezer-Datensätze geleakt
Gerade die "Großen" und vor allem Alle, die es schon vor dem Internet gab, sind oftmals ganz besonders beschissen in puncto Sicherheit. Siehe hierzu auch https://github.com/duffn/dumb-password-rules
- Passwortsicherheit bei HDI
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The Stupidest Validation Rules
Related (about password rules):
https://github.com/duffn/dumb-password-rules
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This is the worst password requirement I have ever seen
Dumb Password Rules
- Sending Spammers to Password Purgatory with MS Power Automate and CF Workers KV
- Ask HN: Website with worst UX or Registration experience
What are some alternatives?
SecLists - SecLists is the security tester's companion. It's a collection of multiple types of lists used during security assessments, collected in one place. List types include usernames, passwords, URLs, sensitive data patterns, fuzzing payloads, web shells, and many more.
weakpass - Weakpass collection of tools for bruteforce and hashcracking
monkeytype - The most customizable typing website with a minimalistic design and a ton of features. Test yourself in various modes, track your progress and improve your speed.
devise-security - A security extension for devise, meeting industry-standard security demands for web applications.
keepassxc - KeePassXC is a cross-platform community-driven port of the Windows application “Keepass Password Safe”.
many-passwords - Default credentials list. 🐱💻 Leave a star if you like this project! (that motivates me)⭐️
Next.js - The React Framework
scribble-diffusion - Turn your rough sketch into a refined image using AI
Material UI - Ready-to-use foundational React components, free forever. It includes Material UI, which implements Google's Material Design.
noya - The open design tools SDK. Try our new experimental wireframing tool! 👇
serve - Static file serving and directory listing
vscodium - binary releases of VS Code without MS branding/telemetry/licensing