Obsidian.md's "end-to-end" encryption & privacy

scr4tchy

9/2/24, 9:06 PM

End-to-end encryption means that the data is encrypted from the moment it leaves your device, and can only be decrypted using your encryption key once it's back on one of your devices.

We can't read your data. Neither can any potential eavesdroppers, such as your internet service provider.

In the rare case of a complete server breach, your data remains encrypted—no one can decrypt your files without knowing your password.

However as per their blog article, symmetric encryption AES-256-GCM is used, with a key hash derived from the user's password / salt using scrypt, and two recent alternative server implementations [4] [5] show that the derived key hash is transmitted to the Obsidian's servers by the app during vault creation (among a few other calls), and stored in their database.

So if a symmetric encryption algorithm is used, and both the end-user user and Obsidian's server know the symmetric key, how come they wouldn't be able to decrypt the data?

0 + 0

aes

aes-gcm

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Obsidian.md's "end-to-end" encryption & privacy

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.