Unanswered Questions

105 questions with no upvoted or accepted answers
9
votes
0answers
5k views

How to crack (get secret from) Android Keystore System

I am looking for the best way to protect sensitive data in Android devices, e.g. secret or private keys, and found Android Keystore System. Based on the documentation, key material may be bound to ...
5
votes
0answers
809 views

What is the preferred way of using AWS (specifically S3) from mobile apps?

Adding the AWS access key and secret key directly in app code is definitely not a good approach, primarily because the app resides on the users device (unlike server side code), and can be reverse ...
4
votes
0answers
113 views

Encryption data keys in single file at same location

I have an external storage which I am wanting to store encrypted files. Strategy #1: Each file and folder name is AES encrypted with its own data key All data keys are saved into a single datakeys....
4
votes
0answers
368 views

Sharing subkeys among two master keys

I would like to have a GnuPG identity that I can use both for a long time (so that I can build a wide web of trust) and immediately with as many people as possible. As of today, the second goal is ...
4
votes
0answers
310 views

DPAPI Distributed key manager

I have a number of configuration files and binary data that needs to be stored encrypted on disk. Only the user who encrypted should be able to decrypt the information. So far, I have successfully ...
3
votes
1answer
387 views

How to securely store 3rd party API keys directly on web server

I'm building a private web app that I plan to use between myself and a few select friends. Each of us have API keys for a 3rd party service that my web app needs to access so it can call the 3rd party ...
3
votes
0answers
448 views

How to securely print private key and protect against attacks on printer itself?

The question is in the title, but below are my thoughts on this. As we know there are various possible attacks on printer, so it is not very secure to print high security things like private keys for ...
3
votes
2answers
1k views

Can TPM “Storage Keys” be created outside the TPM?

I am interested in 'adding' preexisting keys to a TPM's storage hierarchy. An example of a desired key hierarchy can be shown as: (SRK)----->(User Storage Key)-------> User Working Key 1 ...
2
votes
0answers
52 views

How to store a key for a Java app server?

Assume I have a Java app running on a Linux server. The app needs a secret key to do a task, such as decrypting or encrypting a file, after it starts up. This is a question about best practice for ...
2
votes
0answers
30 views

Is it possible to securely transfer a symmetric key to a VM instance with the use of vTPM?

We have a physical Xeon host (bare metal - BM host) with a hardware TPM installed on it. The BM host's attestation status is established at through boot-time measurements captured and written to the ...
2
votes
0answers
79 views

Storing users' private keys to clone git repositories on their behalf

Let's say I have a multi-user application deployed in a customer's data center that needs to clone/update git repositories - both "interactively" when a user is creating a new project (which consists ...
2
votes
0answers
106 views

How can I trust a GPG key when I download it based on the fingerprint contained in the file I want to verify?

The instructions at https://tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#3 suggest that you can download an ISO for installing an OS, along with the checksums and a signature. You then ...
2
votes
0answers
411 views

Where To Store Public and Private Key files?

I'm creating a Java web-application using a WAR file to be deployed on a server. I will only be using one single web server and hosting. In my project, I'm generating two files: Public Key file and ...
2
votes
0answers
68 views

GPG self-signature default check level

I think I understand the concept of self-signature in GPG from reading the answer to this question. However it is not yet clear to me how check levels are assigned. When issuing gpg --check-sigs one ...
2
votes
1answer
81 views

What advantages do Secret Managers offer in terms of authentication [API usage]?

The problem I am seeing with secret managers (programs which serve as a store of secrets for other programs/APIs) is that at some level, a key or credentials must still be provided programmatically, ...

15 30 50 per page