scrypt
zxcvbn
scrypt | zxcvbn | |
---|---|---|
15 | 59 | |
460 | 14,682 | |
0.7% | 0.5% | |
7.0 | 0.0 | |
26 days ago | 2 months ago | |
C | CoffeeScript | |
GNU General Public License v3.0 or later | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
scrypt
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Looking for file encryption method? (In order to upload cloud)
Check out the scrypt encryption tool.
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A warning to always remember that Obsidian Sync is potentially dangerous
Given that the encryption algorithm is open source (https://github.com/Tarsnap/scrypt) can you try to explain what you mean here?
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OpenSSL and a rookie (me)
I wouldn't use OpenSSL personally. If you just need simple but secure symmetric encryption, checkout the scrypt(1) encryption utility from Tarsnap. If you need support for public keys, check out age(1).
- Ask HN: What does everyone use for encrypting their personal stuff?
- Intel and AMD CPUs vulnerable to a new speculative execution attack (RETBLEED)
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What is the best encryption for files?
scrypt if you strictly only need symmetric encryption.
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Litecoin 😎
^ "scrypt page on the Tarsnap website". Retrieved 21 January 2014.
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Ask HN: Where to ask for feedback about a cryptography related tool
First of all I know that "implementing your own cryptography is bad". However, at some point, one does stumble upon a use-case that is not (well) covered by existing tools.
Now, assuming one has already done his due-diligence and has read (and hopefully understood at least the main ideas of) cryptography related articles / posts / etc. (especially in the area pertaining to what one wants to build), and thus we can assume one is not a complete newbie in this mater, however, nor is he an expert. Basically we can assume he is an "amateur".
Where would one go with his design to ask for feedback about it, in the hope to at least eliminate some weaknesses that one (as a non expert) might have overlooked. (I'm not speaking here about "proofs" or "audits".)
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More specifically ---- but please let's not get into this right now, this being just an example ---- I'm trying to implement something similar to `scrypt` (the encryption utility, that uses the `scrypt` PBKDF, ) or `age` (), as a replacement to my current solution that relies on GnuPG.
- Hat.sh V2 release - simple, fast, secure client-side file encryption.
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Audacity Is Now A Possible Spyware, Remove It ASAP
It entirely does and that's exactly my point. Most "hashes" are designed to be fast, for data validation/checking whatever. For securing data (passwords, anonymisation, etc) you want a "hash" to be as slow as possible. Scrypt for example is designed to be extremely slow and use much memory (making GPU-based parallelisation useless and driving up the cost of CPU-based work). The default settings for five-second hashes changes their 18 hour estimate to a bit over two years... and that's assuming you don't turn it up further.
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?
age - A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.
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.
GpgFrontend - A free, open-source, robust yet user-friendly, compact and cross-platform tool for OpenPGP encryption. It stands out as an exceptional GUI frontend for the modern GnuPG (gpg).
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.
hat.sh - Encrypt and Decrypt files securely in your browser.
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.
react-idle-timer - User activity timer component
Next.js - The React Framework
PrismJS - Lightweight, robust, elegant syntax highlighting.
Material UI - Ready-to-use foundational React components, free forever. It includes Material UI, which implements Google's Material Design.