libsodium.js
zxcvbn
libsodium.js | zxcvbn | |
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4 | 59 | |
939 | 14,682 | |
- | 0.5% | |
5.4 | 0.0 | |
about 1 month ago | 2 months ago | |
HTML | CoffeeScript | |
GNU General Public License v3.0 or later | MIT License |
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libsodium.js
- What is the best way to locally store passwords?
- Is this application of AES via cryptoJS secure against common attacks?
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How do I encrypt data before sending it to the database?
If you want to encrypt the data on the client, so that no one, not even the server is able to decrypt it, then you could use a javascript client side encryption library like https://github.com/jedisct1/libsodium.js/. In this case the server would see opaque random looking bytea data from the client. Note this means the database can't search within that data, it can only serve the encrypted data back to the client for local decryption.
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Hat.sh V2 release - simple, fast, secure client-side file encryption.
And libsodium for cryptography.
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
What are some alternatives?
pgsodium - Modern cryptography for PostgreSQL using libsodium.
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.
BlazorPanzoom - Blazor wrapper for timmywil's panzoom library that helps make zooming and panning of Blazor components and elements easier
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.
scrypt - The scrypt key derivation function was originally developed for use in the Tarsnap online backup system and is designed to be far more secure against hardware brute-force attacks than alternative functions such as PBKDF2 or bcrypt.
keepassxc - KeePassXC is a cross-platform community-driven port of the Windows application “Keepass Password Safe”.
serve - Static file serving and directory listing
dumb-password-rules - A compilation of sites with dumb password rules.
hat.sh - Encrypt and Decrypt files securely in your browser.
Next.js - The React Framework
info-hub - Open-Source information hub for the top #100 crypto currencies
Material UI - Ready-to-use foundational React components, free forever. It includes Material UI, which implements Google's Material Design.