My 'go to' resources...

Just to save Googling...

Tableau

Owner / Medium	Title and link
Andrija Marcic Blog	Tableau auth with SAML on Azure AD
Andrija Marcic Blog	Configuring Kerberos authentication on Tableau server running on Windows
Andrija Marcic	TableauAzureADSync
Robin Cottiss Github	https://github.com/geordielad/snowflake-oauth
Robin Cottiss Github	https://github.com/geordielad/tableau-aws-cognito-integration
Tableau Help	Connect to Tableau Repository with Tableau Desktop
TSM API	Tableau Services Manager (TSM) API —The undocumented “Passwordless” Authentication

Authentication

Owner / Medium
Aaron Parecki	https://www.oauth.com/ https://oauth.net/ https://www.oauth.com/playground/ Udemy: The Nuts and Bolts of OAuth 2.0
OASIS	https://wiki.oasis-open.org/security/FrontPage
SAML	The Beer Drinkers Guide to SAML

Encryption

Stack Overflow	PKCS#1 and PKCS#8 format for RSA private key
PoshACME	PowerShell ACME client to generate certificates using Lets Encrypt

Scripts and Stuff