• For Individuals
  • For Businesses
  • For Universities
  • For Governments
Coursera
  • Coursera Plus
  • 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

    • University of Michigan

      Securing Digital Democracy

      Skills you'll gain: Cyber Security Policies, Security Engineering, Information Systems Security, Computer Security Awareness Training, Security Awareness, Vulnerability, Political Sciences, Policy Analysis, Public Policies, Public Safety and National Security, Safety and Security, Human Factors, Human Computer Interaction, Usability

      4.8
      Rating, 4.8 out of 5 stars
      ·
      169 reviews

      Beginner · Course · 1 - 3 Months

    • Kennesaw State University

      Cybersecurity and Its Ten Domains

      Skills you'll gain: Cybersecurity, IT Security Architecture, Network Security, Disaster Recovery, Application Security, Cyber Operations, Cryptography, Cyber Risk, Encryption, Authorization (Computing), Secure Coding, Systems Development Life Cycle, Security Controls, Cyber Governance, Cyber Security Policies, Infrastructure Security, Security Awareness, Safety and Security, Identity and Access Management, Incident Management

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

      Beginner · Course · 1 - 3 Months

    • University of Colorado Boulder

      Foundations of Data Structures and Algorithms

      Skills you'll gain: Algorithms, Data Structures, Graph Theory, Operations Research, Theoretical Computer Science, Public Key Cryptography Standards (PKCS), Computational Thinking, Cryptography, Computer Science, Programming Principles, Pseudocode, Applied Mathematics, Encryption, Network Model, Linear Algebra, Combinatorics, Advanced Mathematics, Analysis, Mathematical Modeling, Tree Maps

      Build toward a degree

      4.6
      Rating, 4.6 out of 5 stars
      ·
      787 reviews

      Advanced · Specialization · 3 - 6 Months

    • Status: New
      New

      Packt

      CompTIA Security+ Certification (SY0-701): The Total Course

      Skills you'll gain: Penetration Testing, Incident Response, Network Security, Intrusion Detection and Prevention, Cybersecurity, Computer Security Incident Management, Application Security, Open Web Application Security Project (OWASP), Information Systems Security, Identity and Access Management, Vulnerability Assessments, Security Strategy, Cryptography, Security Testing, Secure Coding, Encryption, Risk Management Framework, Command-Line Interface, Virtual Private Networks (VPN), Threat Management

      4.7
      Rating, 4.7 out of 5 stars
      ·
      8 reviews

      Intermediate · Specialization · 3 - 6 Months

    • ISC2

      ISC2 Systems Security Certified Practitioner (SSCP)

      Skills you'll gain: Incident Response, Security Controls, Cryptography, Malware Protection, Key Management, Vulnerability Assessments, Risk Management, Continuous Monitoring, Public Key Infrastructure, Endpoint Security, Disaster Recovery, Computer Security Incident Management, OSI Models, Network Security, Encryption, Authentications, Mobile Security, Operational Risk, Security Awareness, Authorization (Computing)

      4.7
      Rating, 4.7 out of 5 stars
      ·
      209 reviews

      Beginner · Specialization · 3 - 6 Months

    • Packt

      CISSP Certified Information Systems Security Professional

      Skills you'll gain: Identity and Access Management, IT Security Architecture, Authentications, Business Continuity Planning, Continuous Monitoring, Security Controls, Secure Coding, Security Testing, Cryptography, Disaster Recovery, Vulnerability Assessments, Cyber Security Assessment, Incident Response, Application Security, Incident Management, Security Engineering, Data Security, Network Security, OSI Models, Data Loss Prevention

      4.8
      Rating, 4.8 out of 5 stars
      ·
      63 reviews

      Beginner · Specialization · 3 - 6 Months

    • Cisco Learning and Certifications

      Cybersecurity Operations Fundamentals

      Skills you'll gain: MITRE ATT&CK Framework, Incident Response, Cyber Threat Intelligence, Cyber Threat Hunting, Key Management, Data Security, Threat Modeling, Computer Security Incident Management, File Systems, Endpoint Security, Cryptography, Network Security, Distributed Denial-Of-Service (DDoS) Attacks, Linux, Malware Protection, Vulnerability Assessments, Encryption, Incident Management, Threat Management, Threat Detection

      4.8
      Rating, 4.8 out of 5 stars
      ·
      1K reviews

      Beginner · Specialization · 3 - 6 Months

    • University of Pennsylvania

      Fintech: Foundations & Applications of Financial Technology

      Skills you'll gain: FinTech, Portfolio Management, Consumer Lending, Return On Investment, Blockchain, Cryptography, Credit/Debit Card Processing, Digital Assets, Financial Services, Payment Processing, Investments, Lending and Underwriting, Investment Management, Technology Strategies, Emerging Technologies, Risk Analysis, Fundraising and Crowdsourcing, Financial Market, Market Analysis, Artificial Intelligence and Machine Learning (AI/ML)

      4.6
      Rating, 4.6 out of 5 stars
      ·
      3.7K reviews

      Beginner · Specialization · 3 - 6 Months

    • INSEAD

      Blockchain Revolution

      Skills you'll gain: Blockchain, Digital Assets, Peer Review, FinTech, Intellectual Property, Business Transformation, Business Leadership, Governance, Market Opportunities, Business Planning, Technology Strategies, Corporate Sustainability, Business Analysis, Business, Competitive Analysis, Strategic Thinking, Business Modeling, Emerging Technologies, Cryptography, Identity and Access Management

      4.7
      Rating, 4.7 out of 5 stars
      ·
      3K reviews

      Beginner · Specialization · 3 - 6 Months

    • IBM

      Security Analyst Fundamentals

      Skills you'll gain: Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Intrusion Detection and Prevention, Threat Modeling, Threat Detection, Threat Management, MITRE ATT&CK Framework, Cryptography, Security Testing, Incident Management, Application Security, Encryption, Security Management, Cybersecurity, Code Review, Vulnerability Scanning, Vulnerability Assessments

      4.7
      Rating, 4.7 out of 5 stars
      ·
      4.3K reviews

      Beginner · Specialization · 3 - 6 Months

    • University of London

      Cyber Security – Technology and Governance

      Skills you'll gain: Computer Security Incident Management, Linux, Network Security, Cyber Governance, OSI Models, Incident Management, Incident Response, Security Management, TCP/IP, Computer Systems, Threat Modeling, Command-Line Interface, Network Protocols, Cybersecurity, Computer Networking, Cyber Security Strategy, Computer Architecture, Human Factors (Security), Cyber Threat Intelligence, Cyber Attacks

      4.7
      Rating, 4.7 out of 5 stars
      ·
      95 reviews

      Beginner · Specialization · 3 - 6 Months

    • University of London

      Cyber Security Fundamentals

      Skills you'll gain: Key Management, Security Management, Cryptography, Information Systems Security, Cyber Security Policies, Cybersecurity, Encryption, Cyber Risk, Threat Management, Computer Security, Information Assurance, Data Integrity, Incident Response

      4.7
      Rating, 4.7 out of 5 stars
      ·
      189 reviews

      Beginner · Course · 1 - 4 Weeks

    Cryptography learners also search

    Cryptography Projects
    Information Security
    Information Science
    Privacy
    Information Engineering
    Data Security
    Software Security
    Network Security
    1…567…21

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

    • Securing Digital Democracy: University of Michigan
    • Cybersecurity and Its Ten Domains: Kennesaw State University
    • Foundations of Data Structures and Algorithms: University of Colorado Boulder
    • CompTIA Security+ Certification (SY0-701): The Total Course: Packt
    • ISC2 Systems Security Certified Practitioner (SSCP): ISC2
    • CISSP Certified Information Systems Security Professional: Packt
    • Cybersecurity Operations Fundamentals: Cisco Learning and Certifications
    • Fintech: Foundations & Applications of Financial Technology: University of Pennsylvania
    • Blockchain Revolution: INSEAD
    • Security Analyst Fundamentals: IBM

    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)

    Frequently Asked Questions about Cryptography

    At its most basic, cryptography is the study and creation of codes that secure and protect sensitive information. Sure, its name looks a little spooky at first glance, but this field is much more fascinating than frightening. It’s an essential tool for safeguarding data transmitted online and elsewhere — data that you want to keep out of unauthorized hands. By translating these data into a different format that’s difficult for outsiders to decode — a process called encryption — cryptographic methods work to ensure that only the intended recipients can access and translate those data. Understanding cryptography is integral in the field of cybersecurity and other computer science interest areas.‎

    With so much of our communication taking place digitally these days, deepening your understanding of cryptography is an effective way to understand communication as a whole in a more comprehensive way. It’s also an essential concept to dig more deeply into if you’re curious about internet security or are thinking about pursuing a career in that field. Even the simplest tasks on your digital to-do list, like checking your email inbox or bank balance, involve cryptography — it’s a process that’s hard at work behind the scenes in your daily life. Gaining more insight into what it is and how it works equips you with a better understanding of the technological processes that keep you safe online — an essential in this day and age.‎

    You’ll find a variety of career opportunities at your fingertips when you study cryptography, including becoming a cryptographer. In this role, you’ll design algorithms and codes that help encrypt data on websites to keep this information (and the users it comes from) safe. You might also opt to become a cryptanalyst, using your skills to crack the ciphers that secure data to pinpoint weaknesses in encryption systems. It’s like working as a codebreaker for the digital age, with fresh opportunities to solve problems and the satisfaction of overcoming security challenges around every corner.‎

    Cryptography becomes much less of a cryptic concept when you enroll in online courses that make it easy to discover this exciting area of study. From learning the basics of how cryptographic systems operate to using number theory and encryption to solve real-world problems via skill-building projects, taking classes online brings this world of internet security to life — and provides you with a thorough understanding of it — right in your own home (or anywhere you access your coursework). You can earn credits from online cryptography courses to put towards a degree in computer science, advance in your career as a cybersecurity analyst and do so much more with new skills and discoveries gained through the freedom of taking classes when it’s most convenient for you.‎

    Online Cryptography courses offer a convenient and flexible way to enhance your knowledge or learn new Cryptography skills. Choose from a wide range of Cryptography courses offered by top universities and industry leaders tailored to various skill levels.‎

    When looking to enhance your workforce's skills in Cryptography, it's crucial to select a course that aligns with their current abilities and learning objectives. Our Skills Dashboard is an invaluable tool for identifying skill gaps and choosing the most appropriate course for effective upskilling. For a comprehensive understanding of how our courses can benefit your employees, explore the enterprise solutions we offer. Discover more about our tailored programs at Coursera for Business here.‎

    This FAQ content has been made available for informational purposes only. Learners are advised to conduct additional research to ensure that courses and other credentials pursued meet their personal, professional, and financial goals.

    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
    • Teaching Center

    More

    • Press
    • Investors
    • Terms
    • Privacy
    • Help
    • Accessibility
    • Contact
    • Articles
    • Directory
    • Affiliates
    • Modern Slavery Statement
    • Do Not Sell/Share
    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