Questions tagged [trust]

A description of a state of benevolence that exists between two or more parties. A measurement of the confidence in a benign outcome of a transaction involving two or more parties.

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1 answer
99 views

What is the best practice for relying parties to selectively trust certificates in a corporate pki hierarchy?

I have a pki infrastructure for internal company use. In this pki there are multiple registration authorities whose responsibility is to. receive certificate issuance requests verify the identity of ...
16 votes
5 answers
5k views

Where does the root of trust actually lie?

We are told that the roots of trust in the PKI are the handful of Certificate Authorities that issue root certificates and sign other certificates and ensure at least some extent of trust to be ...
1 vote
1 answer
78 views

Why include the root certficiate in the chain, if it is already in receiving parts' truststore?

If I have a self-signed CA certificate in my truststore, and I am sent a chain of certificates where the root CA is missing, is this a problem and if so why? Say that the last certificate in the chain ...
15 votes
6 answers
6k views

Preventing users from tampering with input

Let's say that I have a single-page web app written in JavaScript and a server-side API, both changeable by me. The app calculates some values based on user input and POSTs these to the API. The ...
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4 votes
1 answer
656 views

Difference between -CAfile and -trusted in OpenSSL verify

openssl verify can be executed with both flag -CAfile <FILE> and -trusted <FILE>. The explanations from OpenSSL 1.1.1 manual: -CAfile <FILE> A file of trusted certificates. The file ...
0 votes
1 answer
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Looking for a solution: trusted identity with corresponding digital signatures (QES) for intercontinental charity

We are looking for a solution to meet the needs of a UK incorporated charity (CIO) that has three to seven trustees from at least three continents. Obligations as trustees of a board include signing (...
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7 votes
2 answers
3k views

How to prevent HTTPS man-in-the-middle with self-signed certificates?

I came across this issue when we implemented a new security solution. Said solution has its own root CA certificate and will create certificates for HTTPS web pages "on the fly". Each HTTPS ...
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How safe is it to use a Github Action contributed by a third party?

I'm considering using a Github Action from the Github Marketplace to back up some of my source code to an AWS S3 bucket. My question is this: I found a Github Action, written by a third-party open ...
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1 vote
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What happens if one certificate path is valid while the other one is not?

I have recently figured out that Lets Encrypt provides "invalid" certificate chain in it's certificates that are pointing to the root certificate that has expired a month ago (they did it ...
0 votes
1 answer
154 views

How should I securely rsync to a host with a self-signed certificate on a private network?

I have a backup server that has a self-signed certificate (x509) and another server on the same network. I would like to rsync data to the backup server from the other server. However, I prefer not to ...
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Is there a more convenient, yet safe, way to run DOSBox-X than I'm currently doing it?

I recently learned about DOSBox-X. It's basically a somewhat less awful version of the basically-abandoned DOSBox. I currently have it installed inside a Windows 10 VM inside of my Windows 10 bare ...
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1 vote
2 answers
104 views

How to assess a website's trustworthiness?

How do you assess the trustworthiness of a new website? Especially to download and then install software from. Edit: My underlying concern is to: Trust the website. Trust the website to not inject ...
31 votes
16 answers
14k views

How can I prove to users that my obfuscated code is not malicious without unobfuscating?

I created my own anti-adblock system, that does something similar to services like BlockAdblock except mine goes about Adblocker detection in a different manner (and so far cannot be bypassed like ...
0 votes
1 answer
164 views

Does End-To-End-Encryption in Web Applications require trust?

In a talk from Moxie Marlinspike he mentioned that Signal does not intend to release a web application because they are impossible to audit. The javascript code is retrieved on each page load, so it ...
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2 votes
2 answers
293 views

Secure boot for devices which don't have hardware security element

I understand that Root of Trust is necessary for implementing a secure boot on a device. Root of Trust is strong and trust worthy if this comes from hardware security elements like HSM/TPM/.. So for ...
1 vote
0 answers
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Hardware roots of trust nowadays

I find that names and terms used in relation to Trusted (Trustworthy, Confidential,..) Computing are highly interchanged and thus creating confusion for laymen as am I. Trusted Computing has been ...
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What is the difference betwen a Trusted Computing Base and a Root of Trust?

What is the difference betwen a Trusted Computing Base (TCB) and a Root of Trust (RoT)? Can both terms be used interchangeably? A TCB is defined by the NIST as follows: Totality of protection ...
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1 vote
1 answer
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How secure is to authorize a website to "trust your device"?

A bank has a form of 2FA where, after you put in your username and password, they send a code via SMS to your mobile phone and you have to put that too. On the screen asking for the SMS code, there ...
1 vote
1 answer
117 views

Can a client prove to a third party that they sent a message to another client in a P2P network?

Let's say Alice sends a message to Bob in their P2P chat app asking him to complete some work. Bob is lazy, so he deletes the message off his machine, does not complete the work, and just claims that ...
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1 vote
1 answer
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Chrome extensions: tool to notify users of ownership change (to avoid malicious code injection)? [closed]

A problem with Chrome extensions was raised in an earlier question: extension owners can sell their extension to another owner, who can then insert malicious code. From a user's perspective, they may ...
7 votes
2 answers
15k views

What really is the difference between firmware TPM and a discreet one and should it be trusted more?

What really is the difference between a physical TPM and any implementation of a fTPM? I get that both adhere to the same specification and in my mind should be the same thing, but then, I don't ...
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Practical ways to tell if a Chrome extension is safe? [duplicate]

After reading about Emails a browser extension developer gets from scammers (and the comments here) I understand that there are people who try to convince good addon developers to introduce shady (or ...
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1 vote
1 answer
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Are reproducible builds practically possible on major app stores?

'Reproducible builds' ensure that a published app matches the published open source code. This answer gives some great information on it. But numerous sources1,2 indicate reproducible builds are very ...
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2 answers
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Can I trust opera browser free VPN?

When traffic leaves the VPN, the operator of the VPN server can see the websites I'm accessing. Opera browser has a free VPN. Can I trust this VPN? https://www.opera.com/features/free-vpn
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1 answer
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Is `gpg --refresh-keys` secure and where is this documented?

From the gpg manual: --refresh-keys Request updates from a keyserver for keys that already exist on the local keyring. This is useful for updating a key with the latest signatures, user IDs, etc. ...
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Academic/Campus WiFi Security - Setup: Open

At CERN the WiFi used, is not using any encryption. This means that it is a plain, standard Wi-Fi network with no authentication. However, it is mandatory to register each device when first connecting ...
0 votes
1 answer
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who should create a CSR, the developer or system management? [closed]

I am developing an internal web application. I think it would be a good idea to secure the local web server with an https certificate. I read several postings recommending certificates on local ...
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1 answer
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In what ways can you trust a third party server with your data? [closed]

What can you do that will make it easier for you to trust a third-party server? For example, using Intel sgx enclaves.
0 votes
1 answer
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how end certificate refers to intermediate certificate

As far as i know certificate chain is accomplished based on the issuer's CA name. It is possible that the algorithm to create certificate chain first reads end-certificate's issuer area and get the ...
3 votes
1 answer
589 views

Validity, Owner Trust, Trust Signatures & Certification Level

Two questions on signatures. I am trying to understand the various types of "trust signature". The man page says, "For more information please read the sections “Trust Signature” and “...
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9 votes
3 answers
475 views

Zero Knowledge Proof of ownership of an email address

Let's say that we want to develop a blogging service where only people with an @example.com email can contribute. Prior to post submission, the user requests that a large random token be generated by ...
1 vote
1 answer
297 views

In an Arm TrustZone based Trusted Application (TA), how can a remote party tie an output to a particular TA?

I've been looking at the following figure which shows, with Arm TrustZone architecture, resources of a system can be divided into a Rich Execution Environment (REE) and a Trusted Execution Environment ...
2 votes
1 answer
135 views

Is uncompromisable obfuscated x86-64 execution possible?

I have a problem which has several layers; Provide a distributed computing plane where actors can voluntarily add and remove computing resources from, the actors are untrusted by default, and thus ...
3 votes
1 answer
199 views

How to bootstrap trust in an on-premise environment?

As part of moving from few on-premise monoliths to multiple on-premise microservices, I'm trying to improve the situation where database passwords and other credentials are stored in configuration ...
0 votes
0 answers
130 views

Generating trusted random numbers for a group?

Alice and Bob need to share some cryptographically-secure random numbers. Alice does not trust Bob, and Bob does not trust Alice. Clearly, if Alice generates some numbers, and hands them to Bob, Bob ...
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2 votes
3 answers
197 views

Password checking process for common websites

This will seem like a very basic question, but I wanted to make sure I don't miss something. When you enter your password in a login page and you press enter, what exactly happens right after until ...
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1 vote
1 answer
126 views

Risk of specific changes to the "Trusted" security zone

Our EDI VAN provides software to transmit sensitive customer and business data between our ERP and their website. This software requires that I add several URLs (including one plain HTTP) to the "...
1 vote
0 answers
130 views

"Trusted memory" What does it mean?

It is often cited "to load from untrusted memory to a trusted system memory" when describing the secure boot process. I wonder, when can we consider a memory as "trusted"?
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-2 votes
1 answer
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Why, with such insanely powerful computers, are no efforts to speak of spent on security? [closed]

The only technology "news" I ever hear about go on about "performance this" and "performance that". I haven't felt that my computer was "slow" since the 1990s. 20 years ago. Yet this is the only thing ...
0 votes
1 answer
177 views

Google approach to device security (BeyondCorp): managed devices and inference engine

I'm reading the BeyondCorp papers and trying to get a very high level idea of how it could be implemented by a small to medium organisation, rather than a behemoth like Google. What kind of software ...
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2 votes
1 answer
280 views

Possible public/private identity recovery after compromise without a centeral authority?

I’ve been thinking about P2P systems using asymmetric keys and wondering if there is anyway to recover an identity in the event it was compromised using some kind of web-of-trust. This seems to be a ...
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0 votes
1 answer
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Proving authenticity of data accessed over TLS by an untrusted third party

Is there any way an untrusted third party who has access to content from a website over HTTPS can prove the authenticity of the data (i.e. that it was distributed by a server in possession of a ...
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1 vote
0 answers
115 views

How does a GPG Keyserver deal with conflicting signatures?

Part of the web of trust of GPG is the use of Keyservers to publish/distribute versions of public keys. It's encouraged of course to sign public keys you trust so the the web may grow. How does a ...
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1 vote
1 answer
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How trustworthy is KMSpico? [closed]

KMSpico is a very common tool to crack Windows. It is considered malware by many malware/virus detection programs. Even so, it is very popular as far as I've seen. Download links I found: https://...
2 votes
2 answers
218 views

Understanding how clients handle incomplete certificate chains

How do clients (browser for example) handle a missing intermediate certificate? In the following answer it is explained that they download certificates or use cached certificates: https://security....
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1 answer
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Difference between Trust and Federation

In the context of Identity and Access Management, is my understanding that Trust is between directory services and Federation is between IdP servers correct? I have also come across terms that are ...
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2 votes
0 answers
356 views

Can developers stop their software from being flagged as malicious by AV products?

This may not be the correct community for this question, I apologize if that's the case. Scenario: A software development company has created a collection of small desktop applications. They have ...
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2 votes
2 answers
283 views

How can we avoid the Facebook SDK? General: Trusted forge for Android apps?

I know that privacy is dead etc, but I saw a presentation (Link: https://www.youtube.com/watch?v=OTt1AVRQyx0 )about developers of Android apps using the Facebook SDK for whatever reason in their ...
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2 votes
1 answer
140 views

why use a CA-signed key pair to encrypt SAML2 assertions?

I have a customer who insists upon using only certificate-authority signed key-pair certificates for encrypting SAML2 assertions. In this use case, I hold the private key in my Service Provider, and ...
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4 votes
2 answers
472 views

Can I blindly trust 127.0.0.1?

On my system (Ubuntu Server 18.04, if that matters) I have two servers. They are behind a Nginx reverse proxy (i.e. accessing service.mywebsite.com internaly proxies the request to 127.0.0.1:...
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