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Let's Encrypt Goes to 64-Day Certificates: When Does Your ACME Client Actually Renew?

Let's Encrypt Goes to 64-Day Certificates: When Does Your ACME Client Actually Renew?

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13 min read
cert-manager renewed our certificate and the pods kept serving the old one

cert-manager renewed our certificate and the pods kept serving the old one

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2 min read
pqc-bench Part 3: ML-DSA-65 certs are 10 bigger than ECDSA — and don't cost a thing on real networks

pqc-bench Part 3: ML-DSA-65 certs are 10 bigger than ECDSA — and don't cost a thing on real networks

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6 min read
curl error 60: the message text fingerprints the TLS backend, not your certificate

curl error 60: the message text fingerprints the TLS backend, not your certificate

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17 min read
Hackers Got Valid TLS Certificates for Google Without Hacking Google. Here Is the 20-Minute Check That Protects Your Domain.

Hackers Got Valid TLS Certificates for Google Without Hacking Google. Here Is the 20-Minute Check That Protects Your Domain.

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7 min read
Surviving Corporate HTTPS Interception: Life Behind Sangfor aTrust

Surviving Corporate HTTPS Interception: Life Behind Sangfor aTrust

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6 min read
Certificate name verification: wildcards, SANs and the checks that fail open

Certificate name verification: wildcards, SANs and the checks that fail open

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3 min read
Design certificate rotation acceptance tests for every TLS termination point

Design certificate rotation acceptance tests for every TLS termination point

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4 min read
Three Ways to Reach a Docker Daemon, and What Each One Looks Like Externally

Three Ways to Reach a Docker Daemon, and What Each One Looks Like Externally

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3 min read
Cloudflare broke my website without expiring a single certificate

Cloudflare broke my website without expiring a single certificate

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5 min read
TlsPin 1.0.2: Reject the Call When the SPKI Pin Does Not Match

TlsPin 1.0.2: Reject the Call When the SPKI Pin Does Not Match

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4 min read
GitHub Just Killed SHA-1 Over HTTPS

GitHub Just Killed SHA-1 Over HTTPS

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3 min read
Get alerted before an SSL certificate expires (the three checks that actually matter)

Get alerted before an SSL certificate expires (the three checks that actually matter)

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3 min read
Your Certificate Monitoring Only Checks the Leaf. That Is Not the Same Thing as Your Chain Being Valid.

Your Certificate Monitoring Only Checks the Leaf. That Is Not the Same Thing as Your Chain Being Valid.

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5 min read
Their certificate worked in every browser and failed in our service

Their certificate worked in every browser and failed in our service

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2 min read
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