What Is PKI Digital Signature: Essentials

Gain a deep understanding of Public Key Infrastructure (PKI), digital certificates, and cryptographic methods. This course covers encryption, hashing, salting, digital signatures, and real-world applications essential for modern secure communication and digital trust.

4.4

★★★★★

(50)

1,000 Students

5.5+ Hours

Stage 3 - Intermediate

Last update: Jan 2024

Audio Language: English

Subtitles/Captions: Yes

Type of Training: Online, self-paced

Focus: Cyber Security Courses for Beginners, Cyber Security Courses

Caption Language: English

What You’ll Learn

This What Is PKI Digital Signature: Essentials will teach you:

Public Key Infrastructure: Learn the core principles and structure of PKI.
Digital certificates: Explore issuance, management, and revocation processes.
TLS and SSL: Discover how digital communications remain secure.
PKI applications: Apply these tools in real-world business and technology settings.

Encryption methods: Understand symmetric and asymmetric encryption techniques.
Hashing and salting: Preserve data integrity and secure sensitive information.
Digital signature process: Learn how to verify identity and integrity.
Blockchain and PKI: Understand the future of secure, decentralized trust models.

Included in the What Is PKI

5.5 Hours of On-Demand Video

1 Quizz

Access on Mobile

Certificate of Completion

Suitable for the Following Careers

Cyber Security Analyst

IT Security Professional

Software Developer

Network Engineer

Systems Administrator

Security Architect

Business Technology Consultant

Course Content

Training Overview

Description of Training

Video Overview

Introduction

1. Chapter Introduction

2. Chocolate Cake Recipe - PKI Example 1

3. The digital treasure - PKI Example 2

4. Browser to Webserver- E2E Encryption

5. PKI

6. Encryption - What will we learn

7. Encryption Levels

8. Transport Encryption

9. Symmetric Encryption

10. Asymmetric Encryption

11. Key exchange - Part 1

12. Key Exchange Algorithms - Part 2

13. Encryption Key Lengths

14. Milestone Check -1

15. Encryption and PKI Tools Introduction

16. TPM

17. HSM

18. KMS

19. Secure Enclaves

20. Obfuscation

21. Steganography

22. Tokenization

23. Data Masking

24. Data Masking Types

25. Masking Techniques

26. Hashing Introduction - What are Hash Functions

27. Real word usage of Hash Functions

28. Journey of Hashing Algorithm

29. Strengths & Weaknesses of Hashing Algorithms

30. Using Right Hashing Algorithms

31. Hashing Vulnerabilities and Historical Exploits

32. Salting

33. Salting Under the hood

34. Definition and basic concept & History of digital signatures

35. The importance of digital signatures in modern communication

36. The cryptographic principles behind digital signatures

37. The process of creating and verifying a digital signature

38. How digital signatures ensure the integrity and non-repudiation of data

39. Common algorithms used for digital signatures,

40. Digital signature standards

41. Advanced cryptographic concepts related to digital signatures

42. Key stretching

43. Contributors in the field of Key stretching

44. Blockchain - Introduction

45. Blockchain as a decentralized digital ledger

46. Adoption of block chain

47. The Dawn of Internet Security and the Rise of Digital Certificates

48. A brief history of cryptographic methods

49. The introduction of SSL by Netscape

50. How SSL became the standard for securing internet communications

51. Why SSL evolved into TLS

52. Poodle Attack

53. Key improvements and differences between SSL and TLS protocols

54. Versions of TLS and their Enhancements

55. Certificate Authorities and their history

56. Understanding Types of CAs - Public vs. Private

57. Hierarchical Trust Model - Example

58. Hierarchical Trust Model - Overview and Best Practices

59. What is a Root CA

60. The Need for Intermediate Certificate Authorities

61. What are CRL-s

62. The Need for OCSP-s

63. How does the browser identify the OCSP Server

64. What are Self Signed Certificates

65. What are Third party Certificates

66. What is a CSR What are its Key Components

67. Wild Card Certificates

68. Buying a domain - Lab

69. Building a Linux VM

70. Mapping A record in DNS

71. Configuring the webserver with Lets Encrypt certificate

72. Verifying the Lets Encrypt Certificate chain of Trust

73. Cert bot Supporting and helpful commands

74. Step by Step - Verifying SELF SIGNED KEYS with OPENSSL

Audio Version of Training

Audio Download

Requirements

Basic computer and internet literacy

Familiarity with operating systems

Understanding of networking fundamentals

Introductory knowledge of cybersecurity

Description of What Is PKI Digital Signature: Essentials

This course explores the essentials of PKI and how it underpins modern digital security. You'll start with the structure and purpose of Public Key Infrastructure and move through encryption principles, hashing, salting, and secure communication practices. The course thoroughly explains digital certificates, Certificate Authorities (CAs), and trust models such as TLS/SSL.

You’ll also explore the evolution of cryptography through practical examples, covering symmetric vs. asymmetric encryption, key exchange protocols, and the application of PKI in modern systems. Topics like digital documents signed with a signer's private key, enforcing certificate policy, and protecting sensitive data are clearly illustrated. You'll also gain insight into bundling TLS certificates for deployment, how web browsers validate trust, and how a unique hash value ensures data integrity.

Understand PKI structure, public key systems, and certificate life cycles
Use public and private keys to encrypt data and protect sensitive communications
Apply cryptographic keys through hashing, salting, and secure storage practices
Explore secure digital signing, certificate verification, and revoking certificates
Configure certificates using OpenSSL, Let’s Encrypt, and a certificate management system
Evaluate trust chains, certificate authorities, and hierarchical PKI models
Identify how TLS, SSL, and key management tools are implemented in real-world scenarios

Through hands-on examples and real-world concepts, this course will prepare you to understand how digital signatures work, how to encrypt messages, and how public key encryption and symmetric encryption support secure electronic transfer of data in digital communications.

Who Is This Course For

This course is ideal for IT professionals, cybersecurity learners, developers, and technical managers seeking to understand PKI and its role in modern security architecture. It's also well-suited for students and business professionals wanting to expand their digital trust knowledge.

Course Instructor

StationX

StationX has been an award-winning, leading provider of online cybersecurity training and consultancy services since 1999. Through hands-on learning experiences, StationX offers the most engaging and effective way to learn real-world concepts and skills essential for a successful cyber career.

StationX has built and aggregated over 1,000 classes, virtual labs, practice tests, and exam simulations covering cybersecurity, hacking, penetration testing, certifications, Linux, networking, and cloud computing. Their training has benefited more than 250,000 students in 195+ countries, earning them the prestigious AI Cyber Security Educator of the Year 2020 Award.

Read More

Read Less

Testimonials

★★★★★

Samantha L.

I finally understand how digital communication stays secure thanks to this course. Concepts like certificate templates and central directory used to confuse me, but now I can explain them with confidence!

★★★★★

Rakesh D.

This training explained complex topics like trusted root certificates and certificate database in a way that made sense. It helped me implement better encryption policies across our connected devices.

★★★★★

Melissa J.

From configuring our web server with TLS to mastering the certificate enrollment process, this course transformed our infrastructure team's capabilities. It clarified how to revoke digital certificates, interact with a registration authority, and manage PKI certificates with confidence. The deep dive into PKI authentication, corresponding public key validation, and transport layer security was especially impactful.

Show More

Show Less

Frequently Asked Questions

Is PKI part of cyber security?

Yes, PKI (Public Key Infrastructure) is a fundamental part of cybersecurity. It provides the framework for secure communication, authentication, and data integrity over untrusted networks like the internet. PKI enables encryption, digital signatures, and certificate management, which are essential for verifying identities, protecting sensitive data, and ensuring trust between devices and users.

What is an example of a PKI?

An example of a Public Key Infrastructure (PKI) is the use of SSL/TLS certificates by websites to enable HTTPS. When you visit a secure website like https://www.bank.com, your browser checks the digital certificate issued by a trusted Certificate Authority (CA). This certificate uses the website’s public key to establish a secure, encrypted connection between your browser and the server. The private key, held securely by the website, decrypts the communication. This process ensures confidentiality, authentication, and data integrity—core goals of PKI in action.

When does the course start and finish?

What Is PKI starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.

Students Who Took This Course Also Liked

Guarantee Your Cyber Security Career with the StationX Master’s Program!

Get real work experience and a job guarantee in the StationX Master’s Program. Dive into tailored training, mentorship, and community support that accelerates your career.

Job Guarantee & Real Work Experience: Launch your cybersecurity career with guaranteed placement and hands-on experience within our Master’s Program.
30,000+ Courses and Labs: Hands-on, comprehensive training covering all the skills you need to excel in any role in the field.
Pass Certification Exams: Resources and exam simulations that help you succeed with confidence.
Mentorship and Career Coaching: Personalized advice, resume help, and interview coaching to boost your career.
Community Access: Engage with a thriving community of peers and professionals for ongoing support.
Advanced Training for Real-World Skills: Courses and simulations designed for real job scenarios.
Exclusive Events and Networking: Join events and exclusive networking opportunities to expand your connections.

TAKE THE NEXT STEP IN YOUR CAREER TODAY!

UNLOCK YOUR MASTER’S PROGRAM

UNLOCK THE STATIONX MASTER’S PROGRAM

Your Path to a Guaranteed Cybersecurity Job & Real Experience

In the StationX Master’s Program, you’ll gain:

30,000+ Cybersecurity Courses & Labs
Pass Top Cybersecurity Certification Exams
Cybersecurity Mentorship & Career Support
Dedicated Cybersecurity Community
Advanced Real-World Cybersecurity Training
Exclusive Cybersecurity Networking

UNLOCK YOUR CAREER

What Is PKI Digital Signature: Essentials

What You’ll Learn

Included in the What Is PKI

Suitable for the Following Careers

Course Content

Training Overview

Introduction

Audio Version of Training

Requirements

Description of What Is PKI Digital Signature: Essentials

Who Is This Course For

Course Instructor

Testimonials

Frequently Asked Questions

Students Who Took This Course Also Liked

Introduction to Encryption Basics

Encryption Academy: What Are Digital Certificates?

Guarantee Your Cyber Security Career with the StationX Master’s Program!

Your Path to a Guaranteed Cybersecurity Job & Real Experience

StationX Accelerator Pro

StationX Accelerator Premium

StationX Master's Program