Collaborate Disseminate
Context
I’m working to make an embedded devices safe against physical access. (publicly accessible device and can be easily stolen)
I already made the following action :
secure boot is enabled on cpu, bootloaded is signed
Image is also si… Continue reading How to safely use dm-crypt as overlayfs uper partition?
I am new to client-side development and I have a naive question. Right now, I’m using Google APIs (the map ones). If I want my client-side application / webapp to display a map, I would include something like this in my index.html:
<scr… Continue reading API key embedded in clients: how to defend against over-usage?
I need to set up full disk encryption on my linux laptop.
Questions:
Does an encryption key on a USB pendrive protect against rubber-hose cryptanalysis?
Is it true that the key on a pendrive is riskier than a password because someone can … Continue reading Full disk-encryption key vs password
I’m looking into the differences between stateful and stateless key management. I understand that stateful key management means that I have a database that tracks my keys, and can become very large. There are obvious security implementatio… Continue reading Stateless Key Management
I see why it is obviously bad to store a secret key and client ID in the source code for a web application. However, how do you go about the alternative? Surely, that information has to be stored somewhere. Is it stored in a local text fil… Continue reading What does it mean to store secret keys as an "environment variable" as opposed to hardcoded in the source code?
We’re wanting to support out-of-the-box digital currency wallets for user’s of our web app.
We have passkeys / webauthn working and would ideally like to associate these credentials with wallet access.
Wallets should be self custodial with… Continue reading Passkeys WebAuthN PRF extension to encrypt/decrypt private key of non-custodial wallet
Posted this first on stackoverflow but was suggested to repost it here.
I am planning on using envelope encryption for data stored in a database in a multi-tenant solution. Envelope encryption suggest creating a separate DEK (Data Encrypti… Continue reading How to avoid performance issues with envelope encryption when using separate DEK’s for each piece of data?
My understanding is that, when you connect to an HTTPS website, the communication is encrypted via asymmetric encryption, therefore private and public keys play a role there. My assumption there is that I, the user, own the private key.
My… Continue reading Consequences of stolen TLS private key
Bitwarden, a popular open-source password management service, has released Bitwarden Secrets Manager, an open-source, end-to-end encrypted solution that helps development, IT and DevOps teams store, manage, automate, and share secrets. About Bitwarden … Continue reading Bitwarden launches E2EE Secrets Manager
I’ve learned that a key protector encrypts the VMK (volume master key), then the VMK encrypts the FVEK (full volume encryption key), and finally the FVEK encrypts the actual data blocks.
I’ve also learned that the numeric password (aka. &q… Continue reading What does an exported BitLocker key package contain?