this post was submitted on 26 Oct 2023
257 points (97.1% liked)
Technology
59404 readers
3336 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
In theory yes because Bitwarden only uses your master password to unlock your password collection. If someone were to brute force the password and figure it out, or if bitwarden servers were hacked and the password acquired, they could access all your passwords.
With 1Password your vault (database with all your passwords) is encrypted on the server. To open it you must provide 2 things:
1Password do not have any record of the decryption key. They give it to you as a pdf when you create your account, and only you have it.
So even if someone cracked your master password, they still cannot decrypt the vault to get your info. They would have to come to your house and try find that pdf with decryption key. Which they don't do.
So you are at significantly safer on 1Password
I hope they don't have your master password either. The decryption key sounds like just a longer password or salt with extra steps. What if the generation algo is cracked?
Also, you can go multi-factor with every password manager I know.
They don't have your password in any form. The random key is generated with a CSPRNG, we don't know how to crack those. They aren't hiding behind secrets: it's all documented right here https://1passwordstatic.com/files/security/1password-white-paper.pdf
1Password is quite good.
Not good enough clearly.
You clearly don’t understand what happened, nor what it would take to get into a users password store.
Not as clearly as you seem to think. You'll struggle to find qualified people with criticism of their response.
The main difference is that 1Password requires two pieces of information for decrypting your passwords while Bitwarden requires only one.
Requiring an additional secret in the form of a decryption key has both upsides and downsides:
So whether you want both or only password protection is a trade-off between the additional protection the key offers and the increased complexity of adequately securing it.
Your proposed scenarios of the master password being brute forced or the servers being hacked and your master password acquired when using Bitwarden are misleading.
Brute forcing the master password is not feasible, unless it is weak (too short, common, or part of a breach). By default, Bitwarden protects against brute force attacks on the password itself using PBKDF2 with 600k iterations. Brute forcing AES-256 (to get into the vault without finding the master password) is not possible according to current knowledge.
Your master password cannot be "acquired" if the Bitwarden servers are hacked.
They store the (encrypted) symmetric key used to decrypt your vault as well as your vault (where all your passwords are stored), AES256-encrypted using said symmetric key.
This symmetric key is itself AES256-encrypted using your master password (this is a simplification) before being sent to their servers.
Neither your master password nor the symmetric key used to decrypt your password vault is recoverable from Bitwarden servers by anyone who doesn't know your master password and by extension neither are the passwords stored in your encrypted vault.
See https://bitwarden.com/help/bitwarden-security-white-paper/#overview-of-the-master-password-hashing-key-derivation-and-encryption-process for details.