Questions tagged [end-to-end-encryption]

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1answer
69 views

In end-to-end encryption where should the asymmetric encryption keys be created?

I'm playing around with learning encryption with a mini messaging project, so far I can do symmetric encryption (AES) where everyone shares the same key, obviously not secure or ideal, I want to learn ...
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0answers
41 views

Is there proper end-to-end encryption for calls and meetings on Adobe Connect?

I read that Skype doesn't employ end-to-end encryption, allowing potential monitoring of data by Microsoft, and perhaps U.S. government agencies. So my question, if this is the case, is: does Adobe ...
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1answer
69 views

End-2-End and server to server encryption over home network

I am setting up a private home management system containing several daemons/servers and a few clients to connect from. I am trying to achieve end-to-end encryption with the most monitoring and health ...
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1answer
48 views

How do I migrate my private key from one device to another in instant messaging app?

I was thinking about end-to-end encryption for my chat application, but I am struggling to understand how do I migrate my private keys from one device to another. One option I thought is to store ...
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0answers
53 views

How are Keybase group chats encrypted?

Keybase co-founder Chris Coyne: "Our goal is end-to-end encryption with minimal friction". How does Keybase do this for Keybase group chats? It relates to this question: Which protocols exist for ...
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0answers
52 views

Are iCloud Tabs for Safari end to end encrypted?

I see that iCloud bookmarks are not covered under end-to-end-encryption on the iCloud security overview, but no mention is made of iCloud Tabs, which seems even more important. Are Tabs stored merely ...
2
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1answer
81 views

How is end-to-end encrypted data stored in a database?

A traditional database holds the data in each column and then has a relational ID to tie that row to a parent (e.g. a user's ID) so it can be found in a query. Taking the same scenario but this time ...
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3answers
166 views

Whatsapp web security

If I use WhatsApp Web on a computer at work that is connected through a proxy, is there a possibility that they will intercept my messages? I know that, thanks to the proxy, they can see the pages ...
2
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2answers
399 views

Why does WhatsApp not encrypt Google Drive backups?

WhatsApp has end-to-end encryption, promising privacy to users. However, it becomes useless if backups to Google Drive are unencrypted. Our supposedly private data goes to the control of Google. No ...
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1answer
84 views

Diffie–Hellman key exchange questions [closed]

at the moment I am working on a chat application, where more than two clients can communicate at the same time. I just got started with the encryption so please be bear with me. My goal is to ...
0
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1answer
75 views

How to use Username/Password in Signal Protocol

I am trying to create a communication app from scratch (more like an html parsed messaging app) using the Signal protocol. While I do have lot to of programming experience, I am a crypto novice and ...
0
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1answer
276 views

Man-in-the-middle attacks in end-to-end encryption

I am reading about how to implement end-to-end encryption in IMs. Then I find this question. I cannot understand how the man-in-the-middle attack happens when the author of the answer says: Note ...
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0answers
59 views

How is Indonesia blocking images in e2ee applications?

Indonesia's minister in communication and informatics supposedly blocked the sending of images and videos through social media from 22nd May until 25th May, in order to prevent hoaxes from spreading ...
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0answers
51 views

How can Apple allow all my devices to use iMessages without the key leaving my phone?

This question is related but different to this question. Apple says that all iMessages are end-to-end encrypted, but how can a newly enrolled apple laptop read my phone's iMessages that were sent ...
1
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1answer
81 views

Local area network multi-device network communication protocol

I am planning to build a local area network that will have one Master device and multiple Slave devices. The communication should be able to handle only ON/OFF functionality of the devices (devices ...
2
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1answer
128 views

Perfect forward secrecy in Instant Messaging with multiple devices

I have read multiple sites online about PFS and DH but I still have a few questions. I understand that in order to have PFS you must use different keys to encrypt messages. So your IM client could be ...
0
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1answer
64 views

Signing and encrypting with pairs of keys based on discrete algorithms

In case I've generated pair of keys (public and private) for RSA, I'm able to use it both for signing and encrypting. Is the same statement true also for pairs of keys based on discrete algorithms?
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1answer
323 views

Are emails from ProtonMail to Tutanota end-to-end encrypted?

So I know that sending emails from a ProtonMail Email to a ProtonMail email is end-to-end encrypted. And I know that sending emails from a Tutanota Email to a Tutanota email is end-to-end encrypted. I ...
6
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2answers
483 views

End-to-end Encrypted Group Chat Considerations

I was thinking about building a simple end-to-end encrypted chat with group chat capabilities. Please bare in mind that 1) it's just an experiment to help me know more about cryptography and 2) I'm an ...
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0answers
75 views

HTTP body E2E encryption protocol

I have 2 servers that communicate each other in HTTP and they are both behind an API gateway. Between the servers and their API gateways the communication is in HTTPS with mutual authentication using ...
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1answer
108 views

Is this strategy end 2 end encryption and secure?

I'm passing sensitive financial data to a payment processor online via cloud functions and would like your expert opinions, please. The workflow is as follows: A customer indicates they want to ...
1
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1answer
89 views

What is the difference between full end-to-end encryption and end-to-end encryption?

What is the difference between full end-to-end encryption and end-to-end encryption? Are there any differences between these two terms?
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2answers
172 views

How can a client verify that code sent from the server has not been tampered with?

While trying to understand the recent controversy involving ProtonMail, I started to wonder if its possible to verify that the opensource JavaScript being sent from the server to the client hasn't ...
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0answers
16 views

How to determine what type of encoding/encryption has been used?Please Any Suggestion [duplicate]

Is there a way to find what type of encryption/encoding is being used? For example, I am testing a web application which stores the password in the database in an encrypted format ()^$!%^$#&%$!$($)...
25
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4answers
5k views

How can WhatsApp do both targeted advertisement and end-to-end encryption?

Recently there have been a lot of news articles which say that Facebook will very soon add advertising to WhatsApp, yet will keep the end-to-end encryption (source): [M]essages will remain end-to-...
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2answers
262 views

Can Facebook break the WhatsApp E2E encryption without the customers noticing?

I read a lot of reports from corporate media complaining that you can't censor "fake news" sent via WhatsApp. Mainstream media claims that because of "fake news" the wrong person got elected in Brazil....
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2answers
1k views

Can my school read my GroupMe messages since they are not end-to-end encrypted?

I used GroupMe on my personal phone on my school WiFi and sent some very private messages. I have confirmed that my school is not performing a MITM attack by comparing grc fingerprints. However, I’...
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2answers
310 views

End to end encryption in mobile banking? [closed]

Can we use E2EE to secure the communication between the bank and it's customers in the applications of mobile banking? And what is the status off E2EE vs SSH regarding this matter?
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2answers
311 views

How to handle end to end encryption [closed]

I am working on an app where the goal is to upload user data, store it, do some processing on that data and present it to user when asked. We want to follow end to end encryption model where the ...
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5answers
349 views

Is encrypting data once enough? [closed]

If I encrypt my data and want to send it from point A to point B, is the end to end encryption is necessary? Although it's dependent on a) the encryption method and b) my security policy but is one ...
26
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2answers
12k views

Which protocols exist for end-to-end encrypted group chat?

I am looking for existing protocols for a group chat with two things: End to end encrypted. Just what you would expect: messages are only decipherable by the chat members and message tampering is ...