Security Engineering Patterns

PKI, Vault, EAP-TLS, secrets management — security patterns from production deployments. Every entry has a date and context proving it works.

Domains

Domain	Focus
PKI & Certificates	Certificate issuance, chain splitting, verification, OpenSSL patterns
Vault Operations	SSH certificate signing, secret access, Vault PKI workflows
EAP-TLS	802.1X certificate authentication, nmcli configuration, ISE integration
KQL & Sentinel	KQL query patterns, Microsoft Sentinel investigation workflows
Secrets Management	gocryptfs, gopass, age encryption, credential lifecycle

Domain

Focus

Certificate issuance, chain splitting, verification, OpenSSL patterns

SSH certificate signing, secret access, Vault PKI workflows

802.1X certificate authentication, nmcli configuration, ISE integration

KQL query patterns, Microsoft Sentinel investigation workflows

gocryptfs, gopass, age encryption, credential lifecycle