Official Certificates and Exam Alignment: TLS (EN)

Classification

This document does not invent an official TLS core certificate. TLS skill is relevant in security, cloud, Linux, web, PKI and platform exams, but this workshop treats TLS as a practical core capability and not as a replacement for vendor material.

Important for this workshop:

RFC 8446, RFC 9325, RFC 5280, CA/Browser Forum Baseline Requirements and NIST SP 800-52 Rev. 2 provide technical references.
Certificates in workshop artifacts are technical X.509 artifacts, not personal certifications.
Exam alignment comes through tasks about TLS versions, certificates, chains, mTLS, ACME, hardening, monitoring and incident response.

Competency Mapping

Competency	Workshop Area	Evidence in Repo
TLS and X.509 fundamentals	Fundamentals	Workshop 01, Exercises 01, Examples 00-06
handshake, chain and web server	Intermediate	Workshop 02, Examples 07-15
automation, ingress and mTLS	Professional	Workshop 03, Examples 13-23
hardening and incident response	Advanced Security	Workshop 04, Examples 24-30

Preparation Without Certification Claims

Check current RFCs, CA/B Forum requirements and organization requirements.
Practice OpenSSL analysis, chain verification, CSR creation, mTLS and expiration monitoring locally.
Support decisions with commands, outputs and runbooks.
Check vendor exams separately against their current objectives.

Sources and References

Practice Appendix: Certificate Preparation

This appendix is a working backlog for longer trainings, reviews and repetitions. Each task can be checked locally with OpenSSL artifacts, sample configurations and a Git repository.

A001. TLS

Task: check certificate and SAN and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A002. RFC 8446

Task: review private-key protection and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A003. RFC 9325

Task: validate complete chain and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A004. X.509

Task: review TLS version and cipher policy and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A005. PKI

Task: document trust-store assumption and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A006. TLS

Task: check expiration date and renewal path and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A007. RFC 8446

Task: explain revocation model and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A008. RFC 9325

Task: evaluate mTLS identity and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A009. X.509

Task: mark HSTS or header risk and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A010. PKI

Task: name monitoring or alert rule and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A011. TLS

Task: record incident recovery path and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A012. RFC 8446

Task: write team rule and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A013. RFC 9325

Task: check certificate and SAN and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A014. X.509

Task: review private-key protection and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A015. PKI

Task: validate complete chain and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A016. TLS

Task: review TLS version and cipher policy and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A017. RFC 8446

Task: document trust-store assumption and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A018. RFC 9325

Task: check expiration date and renewal path and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A019. X.509

Task: explain revocation model and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A020. PKI

Task: evaluate mTLS identity and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A021. TLS

Task: mark HSTS or header risk and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A022. RFC 8446

Task: name monitoring or alert rule and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A023. RFC 9325

Task: record incident recovery path and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A024. X.509

Task: write team rule and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A025. PKI

Task: check certificate and SAN and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A026. TLS

Task: review private-key protection and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A027. RFC 8446

Task: validate complete chain and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A028. RFC 9325

Task: review TLS version and cipher policy and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A029. X.509

Task: document trust-store assumption and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A030. PKI

Task: check expiration date and renewal path and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A031. TLS

Task: explain revocation model and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A032. RFC 8446

Task: evaluate mTLS identity and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A033. RFC 9325

Task: mark HSTS or header risk and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A034. X.509

Task: name monitoring or alert rule and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A035. PKI

Task: record incident recovery path and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A036. TLS

Task: write team rule and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A037. RFC 8446

Task: check certificate and SAN and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A038. RFC 9325

Task: review private-key protection and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A039. X.509

Task: validate complete chain and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A040. PKI

Task: review TLS version and cipher policy and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A041. TLS

Task: document trust-store assumption and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A042. RFC 8446

Task: check expiration date and renewal path and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A043. RFC 9325

Task: explain revocation model and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A044. X.509

Task: evaluate mTLS identity and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A045. PKI

Task: mark HSTS or header risk and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A046. TLS

Task: name monitoring or alert rule and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A047. RFC 8446

Task: record incident recovery path and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A048. RFC 9325

Task: write team rule and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A049. X.509

Task: check certificate and SAN and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A050. PKI

Task: review private-key protection and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A051. TLS

Task: validate complete chain and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A052. RFC 8446

Task: review TLS version and cipher policy and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A053. RFC 9325

Task: document trust-store assumption and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A054. X.509

Task: check expiration date and renewal path and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A055. PKI

Task: explain revocation model and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A056. TLS

Task: evaluate mTLS identity and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A057. RFC 8446

Task: mark HSTS or header risk and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A058. RFC 9325

Task: name monitoring or alert rule and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A059. X.509

Task: record incident recovery path and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A060. PKI

Task: write team rule and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A061. TLS

Task: check certificate and SAN and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A062. RFC 8446

Task: review private-key protection and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A063. RFC 9325

Task: validate complete chain and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A064. X.509

Task: review TLS version and cipher policy and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A065. PKI

Task: document trust-store assumption and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A066. TLS

Task: check expiration date and renewal path and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A067. RFC 8446

Task: explain revocation model and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A068. RFC 9325

Task: evaluate mTLS identity and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A069. X.509

Task: mark HSTS or header risk and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A070. PKI

Task: name monitoring or alert rule and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A071. TLS

Task: record incident recovery path and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A072. RFC 8446

Task: write team rule and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A073. RFC 9325

Task: check certificate and SAN and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A074. X.509

Task: review private-key protection and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A075. PKI

Task: validate complete chain and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A076. TLS

Task: review TLS version and cipher policy and connect the observation explicitly to TLS.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A077. RFC 8446

Task: document trust-store assumption and connect the observation explicitly to RFC 8446.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A078. RFC 9325

Task: check expiration date and renewal path and connect the observation explicitly to RFC 9325.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A079. X.509

Task: explain revocation model and connect the observation explicitly to X.509.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.

A080. PKI

Task: evaluate mTLS identity and connect the observation explicitly to PKI.
Evidence: Record at least one OpenSSL- or curl-related command, expected output and a boundary of that evidence.
Operations question: What would a wrong assumption cause in dev, staging, prod and CI?
Security question: Which keys, certificates, chains, trust stores or headers would be critical?
Recovery: Describe whether reissue, renewal, revocation, trust-store repair, rollback or key rotation would be needed.