[jandy]

I'm confused by the "not affected" remarks. I thought the issue was any site which passes data through cloudflare could be leaked by requests to a different site, due to their data being in memory. Have I misunderstood?

[analogist]

Inside of TLS, 1Password uses an additional SRP handshake that negotiates a static secret (like a DHE), which 1Password uses to both authenticate the user and set up an additional AES-GCM transport encryption.

So even a full memory dump of what's transported in TLS should, as long as it's properly implemented, only reveal an SRP authentication session and subsequently symmetrically encrypted data.

(And inside that SRP-negotiated encryption should only be more symmetrically encrypted vault items, and RSA-encrypted vault keys. If properly implemented even complete TLS breaks do not break 1Password at all, even the cloud version. Properly implemented being the key words of course.)

[danielweber]

I typically think of "encryption inside of encryption" as a boondoggle more likely to somehow break things than make things stronger.

My confidence in that has dropped slightly in the past day.

[jandy]

Interesting, thanks for the reply.

I wonder which password manager the original Project Zero thread referred to then if not 1Password.

[noahm]

The update from 1password indicated that there was application layer encryption happening in addition to the TLS encryption, so a breach of the TLS protection did not expose any sensitive data. Presumably other sites are in similar situations. But don't take my word for it, go change all your passwords.

[ams6110]

Any hosted password manager should be "host proof". They should not have the decryption keys and it should not be possible for them to disclose your unencrypted passwords no matter how careless they or their intermediaries are. They should be sending an encrypted blob over the wire which is only decrypted in your client app or browser when you enter the passphrase.

[runelind]

1Password said that even though they were not affected, they will still move away from Cloudflare due to bad optics.

[orthecreedence]

> Presumably other sites are in similar situations.

Not to my understanding. 1password uses client-side encryption, using keys generated from your master password. This means that any data transmitted over the wire is already encrypted, whether over SSL or not.

Most other sites do not do this, at all, in any way. If you use a website that use'd CloudFlare's SSL termination, change your passwords, cancel your credit card (if you sent it to that site in the past few months, eg Uber/Lyft).

> go change all your passwords.

Yes, correct =].