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Are PGP/GnuPG trust information transferred to key servers?

When signing a key X in the PGP Web of Trust model, I assign the key full validity. Other people who have my key in their key ring can regard X as valid as far as they fully trust me (owner trust). ...
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2answers
94 views

Why don't PGP keyservers enforce double-opt-in?

One thing that I found out when starting using PGP: When I uploaded my keys to the SKS keyserver, the keyserver did not take any action to verify that I am who I claim to be. Since a PGP key contains ...
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18 views

Web of Trust: What is “signatory trust”?

I am learning about the Web of Trust and how to use it. However, I have some issues to fully grasp the concept of Signatory Trust. What is an easily understandable definition of signatory trust? An ...
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1answer
143 views

Help - Somebody stole my OpenPGP key ID, what can I do?

I received a key transition statement because somebody found himself in the exact same situation described here. This issue will target more and more OpenPGP users in future, probably even all of ...
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3answers
94 views

Email Encryption

I'm hoping someone can point me in the right direction. If I wanted to implement email encryption within an organisation what would be the best way? I've been searching the web tonight but all my ...
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2answers
147 views

GPG Web-of-Trust Level [duplicate]

(and really sorry for my english) I have a question about Web-of-Trust of GPG. Let's say A and B signed each other's public keys and B and C signed each other's public keys. In this case A can trust ...
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1answer
135 views

Is an anonymity network like Tor viable on top of the GPG web of trust?

The web of trust is a graph where the vertices are GPG users (actually, their keys) and the edges are cross-signatures. If we put issues of owner trust aside and assume that all participants only sign ...
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1answer
138 views

What is the difference between “unknown” and “undefined” trust?

When you trust a GnuPG key, you can choose one of these five options (and I'm assuming the same options exist in other OpenPGP tools): 1 = I don't know or won't say (undefined) 2 = I do NOT ...
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371 views

What is the difference between “full” and “ultimate” trust? [duplicate]

When you trust a GnuPG key, you can choose one of these five options (and I'm assuming the same options exist in other OpenPGP tools): 1 = I don't know or won't say (undefined) 2 = I do NOT ...
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1answer
144 views

Is the PGP Web of Trust / Keyserver infrastructure permanently broken?

I love the idea of decentralized trust, the web of trust, and the fact that anyone can run their own keyserver and isn't beholden to a centralized point of failure. But does the decentralized ...
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1answer
38 views

safely changing distribution, is there a strategy to get an distro iso image untampered?

I can check that an Ubuntu iso file is indeed untampered using the public keys already present and trusted in my Ubuntu system. Now I want to switch from Ubuntu to Arch and I wonder how I can start ...
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3answers
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What are you saying when you sign a PGP key?

When you sign a PGP/GPG key, what exactly are you saying to everyone who sees your signature? Are you validating the person, or the email address? To explain what I mean, take the following two ...
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3answers
184 views

Why can't PGP/GPG Web-of-Trust be automated?

We heard lots of complaints about hard to use crypto tools, and recent ideas of Google how to fix this. I had another idea about this which seems quite obvious, but couldn't find anything about it on ...
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3answers
460 views

“Web of trust” for self-signed SSL certificates?

SSL certificates, generally speaking, use a "chain of trust" model - a trusted certificate authority (CA) gets proof that a company such as Amazon owns amazon.com and issues an SSL certificate. ...
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2answers
3k views

If I sign someone else's key and later decide it was a bad idea, is it possible to un-sign it?

Let's say that I sign someone's key and then later decide that was a bad idea - either it was a bad idea at all, or I should have signed it with a different level of trust. Is it possible, both in a ...
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3answers
352 views

What is the web of trust?

I'm studying network and system security and I came across the phrase "web of trust". From Wikipedia: In cryptography, a web of trust is a concept used in PGP, GnuPG, and other ...
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106 views

Why has Convergence stalled out? [closed]

Convergence is a well-thought out system to replace certificate authorities built by Marlin Moxiespike back in 2011. Since it's debut, it seems to have largely stalled out, with no additional major ...
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1answer
156 views

Utility of multiple signing subkeys when we're restricted to a single encryption subkey in GnuPG (PGP)

As I understand it, GnuPG allows the creation of multiple subkeys, but multiple encryption subkeys are problematic because it's not clear which encryption subkey someone should use when sending a ...
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2answers
247 views

Using 1-day expiration GPG keys only… any disadvantages?

From the thread Does GPG key expiration add to security? , we know that the faster the keys expire, the greater our security. The minimum expiration for a GPG key seems to be 1 day. Thus, isn't it ...
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1answer
679 views

Is is typical to create both x509 and OpenPGP key pairs?

I'm looking into increasing my use of signed and encrypted "things" - LibreOffice Documents, Off-the-record chat, PDFs, emails, etc. I'm finding that some things only support x509 format-certificates, ...
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1answer
96 views

Are there negative influences in the Web of Trust? If not, are there theoretical alternatives?

Suppose I encounter a trusted PGP key that isn't really who they say they are. I don't want to sign their key and promote that entity. Can I somehow show my dissidence from the trust that everyone ...