Enterprise Linux Runtime Trust Platform Mastery

@amitmund July 09, 2026

Enterprise Linux Runtime Trust Platform Mastery (Python + Linux)

Build Your Own Enterprise Application Whitelisting & Runtime Integrity Platform

Goal: Design and implement a production-grade Linux Runtime Trust Platform that ensures only applications signed by your organization's PKI can execute, with continuous runtime integrity verification, policy enforcement, observability, and cloud-native integration.

This course combines Linux internals, Python, ELF, Cryptography, eBPF, LSM, IMA, TPM, Supply Chain Security, Containers, and Platform Engineering into one end-to-end project.

Final Capstone Goal

By the end of this course you will build your own system similar to:

Microsoft Defender Application Control (WDAC)
Google Binary Authorization
Apple Gatekeeper
Windows Code Integrity
Linux IMA Appraisal
CrowdStrike Falcon Runtime Protection
SentinelOne Runtime Protection

…but completely built by you using Python and Linux.

Prerequisites

Must Complete

Linux Mastery
Linux Networking
Linux Security
Linux Hardening
Linux Observability
Linux Performance
Python for DevOps
Git
Docker
Kubernetes (Recommended)

Phase 1 — Linux Execution Internals

Module 1 — Linux Process Execution

Chapter 1

Introduction to Program Execution

What happens when double-clicking an executable?
Shell execution
PATH lookup
ELF execution
execve()

Chapter 2

execve() Deep Dive

Process replacement
Kernel internals
argv
envp
Auxiliary Vector
Credential loading

Chapter 3

Linux Loader

ld-linux
glibc
ELF Loader
Dynamic Loader

Chapter 4

ELF Internals

ELF Header
Program Header
Sections
Symbols
GOT
PLT

Chapter 5

Shared Libraries

dlopen()
dlsym()
Relocations

Phase 2 — Cryptography

Module 2

Cryptography Fundamentals

Chapter 6

Hash Functions

SHA256
SHA512
Blake3

Chapter 7

Public Key Cryptography

RSA
ECC
Ed25519

Chapter 8

Digital Signatures

PKI
Certificate Chain
Verification

Chapter 9

Certificate Authority

Build your own

Root CA
Intermediate CA
Signing CA

Chapter 10

Key Management

HSM
TPM
Rotation
Revocation

Phase 3 — Python Security Framework

Module 3

Python Cryptography

Chapter 11

Using cryptography package

Chapter 12

Signing Files

Chapter 13

Verifying Signatures

Chapter 14

Certificate Parsing

Chapter 15

ASN.1

Chapter 16

X509

Phase 4 — Binary Signing

Module 4

Build SignTool

Project

signtool sign app

↓

app.sig

Chapter 17

Signing ELF

Chapter 18

Embedding Signature

Chapter 19

Detached Signatures

Chapter 20

Certificate Validation

Phase 5 — Runtime Verification

Module 5

Build VerifyTool

verify app

↓

Valid?

↓

Yes

↓

Run

Chapter 21

Hash Verification

Chapter 22

Signature Verification

Chapter 23

Certificate Validation

Chapter 24

Revocation Checking

Chapter 25

Policy Engine

Phase 6 — Runtime Launcher

Module 6

Build

secure-run app

Workflow

Verify

↓

Policy

↓

execve()

Chapter 26

Safe Launcher

Chapter 27

Environment Verification

Chapter 28

Library Verification

Chapter 29

Runtime Metadata

Phase 7 — Linux Internals

Module 7

Process Security

Chapter 30

proc filesystem

Chapter 31

sysfs

Chapter 32

Namespaces

Chapter 33

Capabilities

Chapter 34

seccomp

Phase 8 — Runtime Integrity

Module 8

Continuous Verification

Verify

Executable
Libraries
Memory
Plugins
Config
Certificates

Chapter 35

Runtime Hashing

Chapter 36

Memory Integrity

Chapter 37

Library Integrity

Chapter 38

Configuration Integrity

Phase 9 — Dynamic Linker Security

Module 9

Chapter 39

LD_PRELOAD

Chapter 40

LD_LIBRARY_PATH

Chapter 41

rpath

Chapter 42

runpath

Chapter 43

ld.so

Chapter 44

Library Hijacking Detection

Phase 10 — Runtime Monitoring

Module 10

Python Agent

Collect

Processes
Memory
CPU
Libraries
Network
File Changes

Chapter 45

psutil

Chapter 46

pyroute2

Chapter 47

watchdog

Chapter 48

inotify

Chapter 49

fanotify

Phase 11 — eBPF

Module 11

Observe

execve
open
mmap
connect
fork
clone

Chapter 50

bpftrace

Chapter 51

BCC

Chapter 52

libbpf

Chapter 53

Python bindings

Phase 12 — Linux Security Module

Module 12

LSM

Chapter 54

Security Hooks

Chapter 55

security_bprm_check()

Chapter 56

Blocking Execution

Chapter 57

Policy Engine

Phase 13 — Enterprise Policy Engine

Module 13

Python Rules

Example

Only signed software

Only trusted certificates

No LD_PRELOAD

No unsigned libraries

No modified config

Only approved users

Only approved groups

Chapter 58

Policy DSL

Chapter 59

Rule Engine

Chapter 60

Policy Compiler

Phase 14 — Runtime Database

Module 14

SQLite

Store

Certificates
Applications
Hashes
Users
Policies
Audit Logs

Chapter 61

Database Design

Chapter 62

Certificate Store

Chapter 63

Audit Database

Phase 15 — REST API

Module 15

Python FastAPI

Endpoints

POST /sign

POST /verify

GET /policy

GET /audit

GET /apps

GET /runtime

Phase 16 — Web Dashboard

Module 16

React or HTMX

Dashboard

Shows

Running Apps
Integrity Status
Certificates
Alerts
Violations

Phase 17 — Supply Chain Security

Module 17

SBOM

SLSA

Sigstore

Cosign

in-toto

Provenance

Phase 18 — Container Security

Module 18

Verify

Docker Images

OCI Images

Kubernetes Pods

Admission Controller

Phase 19 — TPM

Module 19

Remote Attestation

Measured Boot

TPM Keys

PCR

Phase 20 — Cloud

Module 20

AWS

Azure

GCP

Runtime Verification

Phase 21 — Enterprise Features

Module 21

Notifications

Slack

Webhook

SIEM

Splunk

Elastic

Grafana

Prometheus

Phase 22 — AI

Module 22

AI Runtime Analysis

Detect

Unknown Behavior
Process Anomalies
New Libraries
Unusual Memory
Suspicious Network Activity

Phase 23 — High Availability

Module 23

Distributed Verification

Cluster PKI

Replication

Failover

Phase 24 — Production Deployment

Module 24

Package

RPM

DEB

Container

Helm

Terraform

Ansible

Phase 25 — Final Enterprise Project

Build

Enterprise Runtime Trust Platform (ERTP)

Features

Company PKI
Binary Signing CLI
Signature Verification
Runtime Policy Engine
Application Whitelisting
Runtime Integrity Monitoring
Continuous Verification
Audit Logging
Certificate Management
Web Dashboard
REST API
Docker Integration
Kubernetes Integration
TPM Support
eBPF Monitoring
SIEM Integration
Prometheus Metrics
Grafana Dashboards
Alerting
Automatic Key Rotation
Remote Attestation
Enterprise RBAC
Multi-Tenant Support

Technologies Covered

Linux

ELF
execve()
procfs
sysfs
namespaces
cgroups
seccomp
SELinux
AppArmor
IMA
EVM
fs-verity
fanotify
inotify
auditd

Python

cryptography
pyelftools
psutil
watchdog
FastAPI
SQLAlchemy
pyroute2
asyncio
multiprocessing
pathlib
click/typer
rich
sqlite3

Security

RSA
ECC
Ed25519
PKI
X509
TPM
Secure Boot
Sigstore
Cosign
SBOM
SLSA

Observability

eBPF
Prometheus
Grafana
Loki
OpenTelemetry

Every Chapter Includes

Every chapter contains:

Learning Objectives
Theory
Internal Working
Linux Kernel Internals
Python Implementation
Project-Oriented Development
Architecture Diagrams
Mermaid Diagrams
Sequence Diagrams
Data Flow Diagrams
State Machines
Cryptography Concepts
Production Examples
Enterprise Case Studies
Security Notes
Common Mistakes
Troubleshooting
Best Practices
Performance Considerations
Hands-on Labs
Mini Projects
Exercises
Quiz
Interview Questions
References
Official Documentation
Further Reading

Progressive Projects

SHA256 Hasher
Digital Signature Tool
Company Certificate Authority
ELF Parser
Binary Signing Tool
Signature Verification Tool
Secure Launcher
Policy Engine
Runtime Integrity Agent
File Integrity Monitor
Process Monitor
Library Verification Engine
Runtime Audit Logger
REST API
Web Dashboard
Container Verification Service
Kubernetes Admission Webhook
TPM Attestation Service
eBPF Runtime Monitor
Complete Enterprise Runtime Trust Platform

Estimated Course Size

25 Modules
63 Core Chapters
3,500+ Pages
2,000+ Python Code Examples
800+ Linux Commands
700+ Architecture & Sequence Diagrams
250+ Hands-on Labs
20 Progressive Real-World Projects
1 Enterprise-Grade Capstone Platform

Final Outcome

After completing this roadmap, you will have built a production-quality Enterprise Runtime Trust Platform that can:

Sign and verify ELF binaries using your own PKI.
Enforce organization-specific execution policies before applications start.
Monitor runtime integrity of executables, libraries, configurations, and processes.
Integrate with Linux security features such as IMA, eBPF, and LSMs.
Provide REST APIs, dashboards, audit logs, and enterprise policy management.
Extend trust enforcement to containers and Kubernetes workloads.
Demonstrate expertise in Linux internals, Python systems programming, cryptography, runtime security, and platform engineering through a substantial real-world project suitable for senior engineering portfolios.