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Course Introduction
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This video introduces the Introduction to Cryptanalysis course.
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Introduction to Cryptanalysis
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This video lays the groundwork for performing cryptanalysis for cybersecurity.
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Entropy Calculations
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This video describes entropy calculations and their use for analyzing ciphertexts.
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Character Frequency Analysis
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This video describes character frequency analysis and its use for breaking substitution ciphers.
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Encryption vs Encoding
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This video discusses the difference between encryption and encoding algorithms.
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Breaking ROT Ciphers
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This video describes how to identify and break rotational ciphers.
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Breaking Weak XOR Encryption
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This video describes how to identify and break improper use of XOR ciphers.
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Breaking Misused Stream Ciphers
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This video describes how to break misused stream ciphers.
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Syllabus
Syllabus
Course description
Cryptographic algorithms, if used correctly, can render data impervious to attack. However, it is common for them to be used incorrectly. This course describes some of the obfuscation methods commonly used instead of strong cryptography and how to identif
Meet the author
Howard Poston is a cybersecurity researcher with a background in blockchain, cryptography and malware analysis. He has a master’s degree in Cyber Operations from the Air Force Institute of Technology and two years of experience in cybersecurity research and development at Sandia National Labs. He currently works as a freelance consultant providing training and content creation for cyber and blockchain security. He can be reached by email at howard.poston@gmail.com or via his website at https://www.howardposton.com.
Associated NICE Work Roles
All Infosec training maps directly to the NICE Workforce Framework for Cybersecurity to guide you from beginner to expert across 52 Work Roles.
- All-Source Analyst
- Mission Assessment Specialist
- Target Developer
You're in good company
We use Infosec Skills to provide continuous training to our technicians and to prepare them for various certifications. Infosec Skills allows us to create personalized training programs that focus on each of our technicians’ particular roles and see their progress as they take courses. We also, recommend it to clients to make their IT support teams better.
Caleb Yankus
This has been utilized to bridge the skills gap across our cyber team and to aid them as they prepare for their various certifications. It also has provided a nice learning foundation for our various cyber team members to utilize as we continue to find ways for cross-utilization with operations while minimizing the downtime needed to ensure everyone’s knowledge is the same.
Daniel Simpson
We use Infosec Skills to provide base level knowledge for employees. We also use the services to provide in depth learning for employees as they encounter new technologies. If an employee is is assigned to a new project, we can rely on Infosec Skills to provide a rapid concentrated learning environment. This rapid concentrated learning positions our employees for success.
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Plans & pricing
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Infosec Skills Personal
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Integrations via API
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- 190+ role-guided learning paths and assessments (e.g., Incident Response)
- 100s of hands-on labs in cloud-hosted cyber ranges
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- Optional upgrade: Guarantee team certification with live boot camps
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