15 Best Cryptography Courses on Udemy
We compared 15 Cryptography courses currently listed on Udemy, priced from $19.99 to $199.99. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.
- Courses compared
- 15
- Price range
- $19.99 – $199.99
- Providers
- Udemy
- Last updated
- 18 Sep 2026
How these 15 courses were chosen
Every course below is a real, currently listed course from Udemy, matched to "cryptography" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.
The grade on each entry scores how much the provider publishes about the course before you pay — the length and detail of the description, whether it lists learning outcomes and objectives — and whether a named university or institution stands behind it. A is fully documented and institution-backed; E is little more than a title and a price. Courses with almost nothing published are left ungraded rather than marked down, because an unknown course and a poor one are not the same thing.
There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $19.99 to $199.99, as listed by the provider when we last updated the page.
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1
Security+ Certification - Cryptography Domain
This course is for beginners and IT pros looking to get certified and land an entry level Cyber Security position paying upwards of six figures! There are currently over a million Cyber Security job openings global and...
$94.99listed price -
2
PKI & Cryptography Basics: Certificates, TLS & OpenSSL!!
This course introduces the fundamental concepts of Public Key Infrastructure (PKI), cryptography, encryption, certificates, TLS, and OpenSSL in a clear, theory-focused way. It is designed as a no-configuration, no-lab le...
$19.99listed price -
3
Cryptography and Computer Security
In today’s digital world, the protection of information is more critical than ever. Cryptography and Computer Security is a comprehensive course designed to equip learners with the foundational knowledge and practical sk...
$19.99listed price -
4
GIAC GSEC Exámenes Simulados 2026
Bienvenido a tu suite completa de exámenes simulados GIAC Security Essentials (GSEC) 2026, diseñada de acuerdo con los principios de seguridad SANS y los objetivos oficiales de la certificación.Nuestro objetivo es simple...
$199.99listed price -
5
GIAC GSEC Examens Blancs 2026
Bienvenue dans votre suite complète d’examens blancs GIAC Security Essentials (GSEC) 2026, conçue selon les principes de sécurité SANS et les objectifs officiels de la certification.Notre objectif est simple : vous aider...
$199.99listed price -
6
Simulado Certified Blockchain Expert
Simulado Certified Blockchain Expert. Tornar-se um especialista reconhecido em tecnologia blockchain exige uma compreensão profunda que vai muito além das criptomoedas. Este conteúdo foi desenvolvido para fornecer uma ba...
$34.99listed price -
7
CISA - Information Systems Auditor Course - All Domains
Are you preparing for the CISA exam and looking for a structured, exam-focused course that covers every domain?The Certified Information Systems Auditor (CISA) is one of the most recognized credentials in IT auditing, go...
$149.99listed price -
8
![SSCP – Systems Security Certified Practitioner [Exams 2026]](https://i.udemycdn.com/course/480x270/5989058_1105_4.jpg)
SSCP – Systems Security Certified Practitioner [Exams 2026]
Systems Security Certified PractitionerStrengthen your readiness for the Systems Security Certified Practitioner (SSCP) certification with this professionally designed mock exam course. This course provides six comprehen...
$19.99listed price -
9
Complete Guide to Ethical Hacking
The Complete Guide to Ethical Hacking is a comprehensive course that provides in-depth knowledge and practical skills in ethical hacking and network security. The course is designed to help learners understand the...
$199.99listed price -
10
CISSP Certification PART 1: Domain 1,2,3 & 4 BootCamp | ISC2
This practice-exam course provides focused preparation for the first half of the Certified Information Systems Security Professional (CISSP) Common Body of Knowledge (CBK). Through carefully designed questions and explan...
$74.99listed price -
11
![[NEW] Certified Information Systems Security Professional](https://i.udemycdn.com/course/480x270/7209891_e9e4.jpg)
[NEW] Certified Information Systems Security Professional
Certified Information Systems Security Professional Detailed Exam Domain Coverage Security and Risk Management (16%) Topics include understanding, adhering to, and promoting professional ethics, as well as applying funda...
$99.99listed price -
12
Master Course in CompTIA Security+ (101 level)
Mastering CompTIA Security+ (101 level) : Your Path to Cybersecurity Excellence (Certfication Exam preparation course)In today's digital age, cybersecurity is more critical than ever. As the world becomes increasingly re...
$89.99listed price -
13
![[NEW 2026] CISSP-D3](https://i.udemycdn.com/course/480x270/7163325_7e58.jpg)
[NEW 2026] CISSP-D3
Mastering CISSP Domain 3: Security Architecture and Engineering (2026 Updated)Achieving the CISSP (Certified Information Systems Security Professional) credential is the definitive milestone for any cybersecurity career....
$39.99listed price -
14
Teste Pratico Certified Mobile Pentest Associate
Teste Pratico Certified Mobile Pentest Associate. A segurança de dispositivos moveis e uma prioridade absoluta em um mundo onde a maioria das transações financeiras e comunicações ocorre através de aplicativos de smartph...
$34.99listed price -
15
CISSP (ALL Domains 1,2,3,4,5,6,7 & 8) Security Professional
The CISSP: Certified Information Systems Security Professional Certification certification training package covers topics such as Access Control Systems, Cryptography, and Security Management Practices, teaching student...
$19.99listed price
Best Cryptography Courses on Udemy compared
Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.
What the prices here tell you
The 15 priced courses on this page run from $19.99 to $199.99, with the middle of the range around $74.99 — a spread of $180.00. That is a wide gap for one subject. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.
Who is behind these courses
These courses come from Udemy. Everything on this page is sold on the one platform, so the buying experience is the same whichever you pick.
Before you enrol
Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page on 18 September 2026 — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.