Are we self-sovereign PKI yet?
The article discusses the challenges of achieving self-sovereign public key infrastructure (PKI) for individuals. It highlights the limitations of existing messaging and email systems, where trust is often placed in third-party platforms. Despite advancements in encryption and identity verification, users frequently neglect to verify keys, undermining the intended security benefits.
- ▪Signal and other messaging platforms have implemented safety features for key verification, but few users actually utilize them.
- ▪The existing public key infrastructure primarily serves machines rather than individuals, leading to a reliance on custodial relationships.
- ▪Recent incidents, such as Google handing over user data without notification, illustrate the vulnerabilities in current systems.
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Record
| Original publisher | Buffrr |
| Canonical URL | https://buffrr.dev/blog/are-we-self-sovereign-pki-yet/ |
| Publication time | Thu, 21 May 2026 22:49:37 +0000 |
| Retrieval time | 2026-05-21T23:01:36.191Z |
| Last seen | 2026-05-21T23:01:36.191Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | doS1CaeOuLjC |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Are we self-sovereign PKI yet? May 6, 2026 Signal is end-to-end encrypted in the sense that the keys are end-to-end. Whether you got the right keys is a different question, and almost nobody asks it. Safety numbers on Signal exist because, in principle, the server could hand you the wrong key for your contact. You’re supposed to walk through one the first time you talk to someone you care about. In practice, almost nobody does. iMessage shipped the same idea in late 2023, called Contact Key Verification: WhatsApp has a Security Code. Threema rates contacts red, orange, or green depending on how they were added. Matrix has cross-signed device verification with comparison emoji.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Buffrr.
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