• For Individuals
  • For Businesses
  • For Universities
  • For Governments
Coursera
  • Online Degrees
  • Careers
  • Log In
  • Join for Free
    Coursera
    • Browse
    • Cryptography

    Cryptography Courses Online

    Study cryptography principles for securing digital information. Learn about encryption, decryption, and cryptographic protocols.

    Skip to search results

    Filter by

    Subject
    Required
     *

    Language
    Required
     *

    The language used throughout the course, in both instruction and assessments.

    Learning Product
    Required
     *

    Build job-relevant skills in under 2 hours with hands-on tutorials.
    Learn from top instructors with graded assignments, videos, and discussion forums.
    Learn a new tool or skill in an interactive, hands-on environment.
    Get in-depth knowledge of a subject by completing a series of courses and projects.
    Earn career credentials from industry leaders that demonstrate your expertise.
    Earn your Bachelor’s or Master’s degree online for a fraction of the cost of in-person learning.

    Level
    Required
     *

    Duration
    Required
     *

    Skills
    Required
     *

    Subtitles
    Required
     *

    Educator
    Required
     *

    Explore the Cryptography Course Catalog

    • Status: Free Trial
      Free Trial
      D

      Duke University

      Decentralized Finance (DeFi) Infrastructure

      Skills you'll gain: Blockchain, FinTech, Interoperability, Payment Systems, Financial Inclusion, Financial Systems, Cryptography, Digital Assets, Financial Regulation, Banking, Encryption, Computer Security, Governance

      4.8
      Rating, 4.8 out of 5 stars
      ·
      1.5K reviews

      Beginner · Course · 1 - 4 Weeks

    • Status: Free Trial
      Free Trial
      U

      University of Colorado System

      Fundamentals of Network Communication

      Skills you'll gain: Digital Communications, OSI Models, Network Protocols, TCP/IP, Communication Systems, Network Routing, Network Architecture, Network Planning And Design, General Networking, Computer Networking, System Programming, Data Integrity

      4.6
      Rating, 4.6 out of 5 stars
      ·
      2.4K reviews

      Intermediate · Course · 1 - 3 Months

    • Status: Preview
      Preview
      E

      EIT Digital

      Security and Privacy for Big Data - Part 1

      Skills you'll gain: Data Security, Cryptography, Information Systems Security, Security Management, Security Requirements Analysis, Data Access, Vulnerability Assessments, Data Management, Information Management, Big Data

      4.7
      Rating, 4.7 out of 5 stars
      ·
      584 reviews

      Beginner · Course · 1 - 4 Weeks

    • Status: Free Trial
      Free Trial
      P

      Packt

      Fundamentals of Network Security and Cryptography

      Skills you'll gain: Network Security, Cryptography, Firewall, Cybersecurity, Intrusion Detection and Prevention, Virtual Private Networks (VPN), Cloud Security, Cyber Attacks, Public Key Infrastructure, Encryption, Threat Modeling, Network Architecture, Dynamic Host Configuration Protocol (DHCP), Human Factors (Security), Security Awareness, Virtual Local Area Network (VLAN), Network Switches

      Intermediate · Course · 1 - 4 Weeks

    • Status: Free Trial
      Free Trial
      N

      New York University

      Introduction to Cyber Security

      Skills you'll gain: Security Engineering, Authentications, Threat Modeling, Network Security, Public Key Infrastructure, Distributed Denial-Of-Service (DDoS) Attacks, Firewall, Cyber Attacks, Cryptography, Infrastructure Security, Cybersecurity, Cyber Security Strategy, Data Encryption Standard, Threat Management, Cyber Risk, Mobile Security, Enterprise Security, Computer Security, Threat Detection, Cyber Security Policies

      4.7
      Rating, 4.7 out of 5 stars
      ·
      3.7K reviews

      Beginner · Specialization · 3 - 6 Months

    • Status: Preview
      Preview
      C

      ConsenSys Academy

      Blockchain: Foundations and Use Cases

      Skills you'll gain: Blockchain, Cryptography, Interoperability, Encryption, FinTech, Emerging Technologies, Ledgers (Accounting), Business Modeling, Distributed Computing, Open Source Technology, Digital Assets, Transaction Processing, Scalability

      4.7
      Rating, 4.7 out of 5 stars
      ·
      843 reviews

      Beginner · Course · 1 - 3 Months

    • Status: Free Trial
      Free Trial
      D

      Duke University

      Java Programming: Arrays, Lists, and Structured Data

      Skills you'll gain: Java Programming, Object Oriented Programming (OOP), Data Structures, Java, Cryptography, Software Engineering, Computer Programming, Algorithms, Encryption, Data Analysis, Data Processing, Web Servers, File Management, Debugging

      4.6
      Rating, 4.6 out of 5 stars
      ·
      3.2K reviews

      Beginner · Course · 1 - 3 Months

    • Status: Free Trial
      Free Trial
      U

      University of Pennsylvania

      Cryptocurrency and Blockchain: An Introduction to Digital Currencies

      Skills you'll gain: Blockchain, Cryptography, Digital Assets, Investments, Portfolio Management, FinTech, Financial Analysis, Financial Market, Emerging Technologies, Transaction Processing, Distributed Computing, Risk Analysis

      4.6
      Rating, 4.6 out of 5 stars
      ·
      1.5K reviews

      Mixed · Course · 1 - 4 Weeks

    • U

      University of Maryland, College Park

      Usable Security

      Skills you'll gain: Usability, Human Computer Interaction, Authentications, Security Engineering, Usability Testing, Interaction Design, Threat Modeling, Human Factors, Information Privacy, Cybersecurity, Personally Identifiable Information, User Interface (UI) Design, User Acceptance Testing (UAT), Multi-Factor Authentication, User Centered Design, Design

      4.6
      Rating, 4.6 out of 5 stars
      ·
      3.3K reviews

      Mixed · Course · 1 - 3 Months

    • Status: Free Trial
      Free Trial
      I

      INSEAD

      Blockchain, Cryptoassets, and Decentralized Finance

      Skills you'll gain: Blockchain, Digital Assets, FinTech, Business Modeling, Payment Systems, Business Transformation, Transaction Processing, Identity and Access Management, Contract Management, Security Controls

      4.6
      Rating, 4.6 out of 5 stars
      ·
      380 reviews

      Beginner · Course · 1 - 4 Weeks

    • Status: Free Trial
      Free Trial
      N

      New York University

      Cyber Attack Countermeasures

      Skills you'll gain: Authentications, Public Key Infrastructure, Cryptography, Data Encryption Standard, Computer Security, Cybersecurity, Network Security, Security Controls, Encryption, Multi-Factor Authentication

      4.7
      Rating, 4.7 out of 5 stars
      ·
      705 reviews

      Intermediate · Course · 1 - 4 Weeks

    • Status: Preview
      Preview
      K

      Kennesaw State University

      Cybersecurity and Its Ten Domains

      Skills you'll gain: Cybersecurity, IT Security Architecture, Network Security, Disaster Recovery, Application Security, Business Continuity, Cryptography, Secure Coding, Systems Development Life Cycle, Security Controls, Law, Regulation, and Compliance, Infrastructure Security, Safety and Security, Identity and Access Management, Governance, Risk Management

      4.4
      Rating, 4.4 out of 5 stars
      ·
      2.4K reviews

      Beginner · Course · 1 - 3 Months

    Cryptography learners also search

    Cryptography Projects
    Information Security
    Information Science
    Privacy
    Information Engineering
    Data Security
    Software Security
    Network Security
    1…8910…23

    In summary, here are 10 of our most popular cryptography courses

    • Decentralized Finance (DeFi) Infrastructure: Duke University
    • Fundamentals of Network Communication: University of Colorado System
    • Security and Privacy for Big Data - Part 1: EIT Digital
    • Fundamentals of Network Security and Cryptography: Packt
    • Introduction to Cyber Security: New York University
    • Blockchain: Foundations and Use Cases: ConsenSys Academy
    • Java Programming: Arrays, Lists, and Structured Data: Duke University
    • Cryptocurrency and Blockchain: An Introduction to Digital Currencies: University of Pennsylvania
    • Usable Security: University of Maryland, College Park
    • Blockchain, Cryptoassets, and Decentralized Finance: INSEAD

    Skills you can learn in Computer Security And Networks

    Cybersecurity (33)
    Google (25)
    Google Cloud Platform (17)
    Internet (17)
    Cryptography (16)
    Network Security (16)
    Linux (12)
    Software Testing (12)
    Information Security (10)
    Application Programming Interfaces (8)
    Kubernetes (8)
    Web (8)

    Other topics to explore

    Arts and Humanities
    338 courses
    Business
    1095 courses
    Computer Science
    668 courses
    Data Science
    425 courses
    Information Technology
    145 courses
    Health
    471 courses
    Math and Logic
    70 courses
    Personal Development
    137 courses
    Physical Science and Engineering
    413 courses
    Social Sciences
    401 courses
    Language Learning
    150 courses

    Coursera Footer

    Technical Skills

    • ChatGPT
    • Coding
    • Computer Science
    • Cybersecurity
    • DevOps
    • Ethical Hacking
    • Generative AI
    • Java Programming
    • Python
    • Web Development

    Analytical Skills

    • Artificial Intelligence
    • Big Data
    • Business Analysis
    • Data Analytics
    • Data Science
    • Financial Modeling
    • Machine Learning
    • Microsoft Excel
    • Microsoft Power BI
    • SQL

    Business Skills

    • Accounting
    • Digital Marketing
    • E-commerce
    • Finance
    • Google
    • Graphic Design
    • IBM
    • Marketing
    • Project Management
    • Social Media Marketing

    Career Resources

    • Essential IT Certifications
    • High-Income Skills to Learn
    • How to Get a PMP Certification
    • How to Learn Artificial Intelligence
    • Popular Cybersecurity Certifications
    • Popular Data Analytics Certifications
    • What Does a Data Analyst Do?
    • Career Development Resources
    • Career Aptitude Test
    • Share your Coursera Learning Story

    Coursera

    • About
    • What We Offer
    • Leadership
    • Careers
    • Catalog
    • Coursera Plus
    • Professional Certificates
    • MasterTrack® Certificates
    • Degrees
    • For Enterprise
    • For Government
    • For Campus
    • Become a Partner
    • Social Impact
    • Free Courses
    • ECTS Credit Recommendations

    Community

    • Learners
    • Partners
    • Beta Testers
    • Blog
    • The Coursera Podcast
    • Tech Blog

    More

    • Press
    • Investors
    • Terms
    • Privacy
    • Help
    • Accessibility
    • Contact
    • Articles
    • Directory
    • Affiliates
    • Modern Slavery Statement
    • Manage Cookie Preferences
    Learn Anywhere
    Download on the App Store
    Get it on Google Play
    Logo of Certified B Corporation
    © 2025 Coursera Inc. All rights reserved.
    • Coursera Facebook
    • Coursera Linkedin
    • Coursera Twitter
    • Coursera YouTube
    • Coursera Instagram
    • Coursera TikTok