Feisty Duck
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feistyduck.com
Feisty Duck
@feistyduck.com
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The place for TLS and PKI education. Publishers of Bulletproof TLS and PKI. Authors of Practical TLS and PKI training. Cryptography & Security Newsletter.
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feistyduck.com
New dates! Practical TLS and PKI Training - 23-26 Feb 2026. We have a limited number of Early Bird tickets available. From Ivan Ristic and with Scott Helme, based on Bulletproof TLS and PKI. www.feistyduck.com/training/pra...
November 12, 2025 at 12:02 PM
feistyduck.com
Cryptography & Security Newsletter is out! In the October issue:
Web PKI Ditches TLS Client Authentication
- How Many Public PKIs Are There?
- Impact on Certificate Transparency
Short News
www.feistyduck.com/newsletter/i...
October 30, 2025 at 12:42 PM
feistyduck.com
Halloween Discount on Practical TLS and PKI Training! 🎃 $500 off on the final training of the year, Nov 10-13. For devs and sysadmins: how to deploy secure servers and design secure web applications
www.feistyduck.com/training/pra...
October 29, 2025 at 5:56 PM
feistyduck.com
New dates! Practical TLS and PKI Training - Nov 10-13 2025.
And if you can't wait that long, we still a few tickets for the training next week. Join us! From @ivanristic.com and with @scotthelme.bsky.social
www.feistyduck.com/training/pra...
September 15, 2025 at 3:33 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- Google Debuts Device-Bound Session Credentials Against Session Hijacking
- Selected Usenix Security ‘25 Papers
- Short News (so many this month!)
www.feistyduck.com/newsletter/i...
August 28, 2025 at 12:16 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- Encrypted Client Hello Approved for Publication
- Short News
www.feistyduck.com/newsletter/i...
July 31, 2025 at 12:27 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- Internet PKI to Integrate DNSSEC
- Short News
www.feistyduck.com/newsletter/i...
June 30, 2025 at 12:34 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- Passkeys Gain Momentum
- Short News
www.feistyduck.com/newsletter/i...
May 29, 2025 at 10:06 AM
feistyduck.com
New dates! Practical TLS and PKI, Sep 22-25. From @ivanristic.com, based on the Bulletproof book, with lots of exercises to give you hands-on experience. Your teacher will be @scotthelme.bsky.social. And now is a good time to grab an Early Bird ticket ($300 off).
www.feistyduck.com/training/pra...
May 28, 2025 at 12:17 PM
feistyduck.com
Our final TLS and PKI Training before the summer will take place on 3-6 June. Four half-days, with real-world exercises to work on during the training and afterwards. With @scotthelme.bsky.social and from @ivanristic.com Join us! www.feistyduck.com/training/pra...
May 15, 2025 at 1:31 PM
feistyduck.com
Four weeks until the next Practical TLS and PKI Training - Join @scotthelme.bsky.social on June 3-6 to learn how to deploy secure servers and design secure web applications. Four half days, Pacific Time AM. From @ivanristic.com.
www.feistyduck.com/training/pra...
May 6, 2025 at 1:55 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- Certificate Lifetimes to Shrink to Just Forty-Seven Days
- Other News
www.feistyduck.com/newsletter/i...
April 30, 2025 at 2:28 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- Mozilla Fixes Certificate Revocation Checking
- Certificate Transparency
- Post-Quantum Cryptography
- Other News
www.feistyduck.com/newsletter/i...
March 31, 2025 at 4:04 PM
feistyduck.com
New dates for Practical TLS and PKI Training! 3-6 June, 8am-11:30am PT. We have a small number of Early Bird tickets, it's a good time to book! From @ivanristic.com and with
@scotthelme.bsky.social. www.feistyduck.com/training/pra...
March 17, 2025 at 2:10 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- QWAC Technical Details Emerge
- No Advanced Data Protection for the UK
- Short News
www.feistyduck.com/newsletter/i...
February 28, 2025 at 10:57 AM
feistyduck.com
We have updated our SSL/TLS and PKI History! Check out the latest developments: www.feistyduck.com/ssl-tls-and-...
February 3, 2025 at 11:38 AM
feistyduck.com
New training dates! Practical TLS and PKI Training, 6-9 May 2025. Grab your Early Bird ticket now! From @ivanristic.com and taught by @scotthelme.bsky.social
www.feistyduck.com/training/pra...
January 30, 2025 at 11:55 AM
feistyduck.com
Cryptography & Security Newsletter 121 is out! In this issue, we published a detailed analysis of the slow death of OCSP.
www.feistyduck.com/newsletter/i...
January 30, 2025 at 11:44 AM
feistyduck.com
Four weeks until Practical TLS and PKI Training - February. Join @scotthelme.bsky.social for four half-days of work and fun! Learn how to deploy secure servers and encrypted web applications and understand theory and practice of Internet PKI. From @ivanristic.com www.feistyduck.com/training/pra...
January 7, 2025 at 4:07 PM
feistyduck.com
Cryptography & Security Newsletter is out! In this issue:
- Short-Lived Certificates Are Coming in 2025
- Post-Quantum Cryptography Adoption
www.feistyduck.com/newsletter/i...
Happy New Year everyone!
December 31, 2024 at 11:11 AM