zxcvbn
webpassgen
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zxcvbn | webpassgen | |
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59 | 11 | |
14,647 | 138 | |
0.9% | - | |
0.0 | 7.7 | |
about 2 months ago | about 2 months ago | |
CoffeeScript | JavaScript | |
MIT License | GNU Affero General Public License v3.0 |
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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...
- 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.
webpassgen
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Do you actually put in ALL your passwords ?
Individuals like OP, who are contemplating a switch to Bitwarden (and therefore probably do not have access to any Bitwarden clients yet) can use Bitwarden's Online Password Generator (after setting the Type option to "Passphrase"), or use other online passphrase generators (although you should probably do a little bit of due-diligence research on the generator tool that you choose before trusting it to generate the master password for your Bitwarden vault).
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Password Maker Compromised
For your Bitwarden master password, you can use this password generator, which has 22 different English word lists (and many non-English options as well) for generating passphrases at a specified minimum entropy level. For example, select the option "Colors" in the "Alternate" box, and you will get a passphrase that looks something like this:
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Balancing master password length for security and usability
Yes, Bitwarden has an online passphrase generator (change the "Type" to "Passphrase"), but since you are responding to a comment by /u/atoponce, I would be remiss not to recommend Aaron's own passphrase generator tool (https://ae7.st/g/), as well as his project to audit online password/passphrase geenrators.
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SysAdmins' favorite password generator is finally back!
The only pw gen I trust (download it and run it locally): https://github.com/atoponce/webpassgen
- New webpassgen release: 20220802
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What password generators does everyone use now since passwordgenerator plus is gone?
Thanks! Note, the source code is at https://github.com/atoponce/webpassgen. I'd rather you opened it locally in your browser rather than trusting my web server. Also, it's probably high time for a new release.
- 👂Tell us your thoughts about the Password Strength Testing Tool
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Passphrase language
I have also seen ones online like this .
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Hat.sh V2 release - simple, fast, secure client-side file encryption.
I don't necessarily agree. I wrote a web-based password generator (and a command line version) that doesn't rely on any 3rd party libraries, like JQuery, Bootstrap, Vue.js, Angular, etc. with the primary focus being a clean UI and pleasant UX. I like to think I achieved those goals.
- Til Diceware Ships An 8192 Word List
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.
serve - Static file serving and directory listing
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.
diceware - Generate secure passwords you can actually remember!
keepassxc - KeePassXC is a cross-platform community-driven port of the Windows application “Keepass Password Safe”.
diceware - A tool for generating strong Diceware passwords, with entropy and crack time estimates.
dumb-password-rules - A compilation of sites with dumb password rules.
RandomValuesNPP - Generate random values plug-in for Notepad++. Use this plugin to generate passwords, guids or random datasets in CSV, JSON, XML and SQL formats. Use the fake test data for performance and QA testing to improve software quality in application development, reports, database modeling, webdev etc.
Next.js - The React Framework
hat.sh - Encrypt and Decrypt files securely in your browser.
Material UI - Ready-to-use foundational React components, free forever. It includes Material UI, which implements Google's Material Design.
browserify - browser-side require() the node.js way