Applied Cryptography & PKI Essentials
Enough cryptography to make correct engineering decisions: symmetric vs asymmetric trade-offs, hashing and signatures, TLS internals, certificate lifecycles and PKI trust chains — plus the classic implementation mistakes that turn good algorithms into bad security.
What this course covers.
5 modules, 35 named skill atoms. Expand any module to see them.
1Crypto Building Blocks7 skill atoms
2TLS Under the Hood7 skill atoms
3PKI in Practice7 skill atoms
4Certificate Operations7 skill atoms
5Mistake Museum7 skill atoms
SEC-103 in the role journeys.
This course appears in 3 of our 45 role journeys. Here is what a learner takes immediately before and after it in each.
Roles this course serves
This course is authored to band B2.
Every course we run is written to one rung of the CASI ladder, so a plan can be assembled to take a team from where they are to where they need to be.
What do B1–B6 mean?The CASI Capability Ladder — click to expand
Every course targets a band on the CASI Capability Ladder — our six-band proficiency scale, anchored to open standards (O*NET, ESCO, NICE, NIST AI RMF, Bloom's). A band tells you how deep a course goes, and what evidence proves it.
A note on B6. Courses in this catalog target B1–B5. B6 is not taught — it is recognised, through a portfolio and a panel, once someone is setting direction for others. Every journey here is built to land a learner at B5.
Other Security courses at this level.
Identity & Access Management Fundamentals
OT & ICS Security Foundations
Post-Quantum Readiness & Cryptographic Inventory
EU Cyber Regulation Foundations: NIS2 & DORA
Cloud Security Fundamentals
Security Foundations & Threat Landscape
Run SEC-103 for your team.
This course runs at several lengths depending on how deep you need to go and how much of it your people already have. Tell us who is being trained and we will scope it.