
Cryptanalysis and Steganography
- Study Mode: Part Time
- Location: High Wycombe
- Duration: 5 Weeks
- Start Date: January 2025
Unlock the secrets of digital security with this short course on Cryptanalysis and Steganography. Learn encryption methods, cryptographic tools, and attack strategies, and how to decode encrypted messages and safeguard data across various systems.
This Short course is run in ‘block mode’ over the course of five weeks. The first week is an intensive lab-based workshop comprising ten three-hour sessions, blending theoretical and practical elements. Over the next four weeks, we hold a weekly, evening, online surgery. In these surgeries, you will be invited to participate in online discussions. This will reinforce theoretical concepts and help put theory into practice, with the tutors. It will also allow you to seek further guidance on assessments as required.
This teaching method is designed to cause a minimum amount of disruption to your full time work.
This course incorporates guidance from the Communications-Electronics Resilience Group (CESG), a group within the UK Government Communications Headquarters (GCHQ), as well as the Chartered Institute for Information Security’s Information Resilience Skills framework.
This course covers an in-depth exploration of cryptology, cryptography, and Steganography. This course explores encryption and decryption methods and cryptographic tools that use common cryptographic protocols in a variety of attack methods against cryptosystems. As well as examining how, through steganography, encrypted messages and potentially malicious code could be hidden within the digital encoding of a picture or graphic.
What facilities can I use?
You will have access to the university facilities as a student of BNU, which entitles you to some benefits, such as access to our 24/7 library with free study space and free laptop loans. Our AppsAnywhere service provides you with online access to the software you need to complete the course.
As a student of BNU you will have access to our student union, with free trips, societies and events for you to get involved in. We also have support services such as counselling, cost of living support, free laptop loans and CV writing. Our new restaurant serves food with a discounted rate and is only open to students and staff.
What will I study?
In this course, you'll delve into the foundational aspects of cryptology, including key principles of encryption and decryption. You will study a range of cryptographic techniques, such as cipher methods, including: Substitution, Transposition, and the Vernam Cipher, along with Symmetric and Asymmetric Encryption methods. The curriculum covers essential cryptographic tools like Public Key Infrastructure (PKI), Digital Signatures, Digital Certificates, and Hybrid Cryptographic Systems. You'll also explore steganography, learning how encrypted messages and malicious code can be concealed within digital media, and address emerging application-based security threats.
Furthermore, you will examine secure communication protocols such as SET, S-HTTP, and SSL, and study secure email methods including S/MIME, PEM, and PGP. The course also covers encryption for wireless networks, including WEP, WPA, and Bluetooth, as well as TCP/IP encryption. Additionally, you'll learn about various attack strategies like Man-in-the-Middle, correlation, dictionary, and timing attacks, and evaluate methods to defend against these threats. This comprehensive approach equips you with both theoretical knowledge and practical skills to effectively protect and analyse cryptographic systems.
How will I be taught and assessed?
On this short course you will be studying this module as part of the MSc Cyber Resilience degree, which will help ensure a good learning environment. This short course is taught in ‘block mode’, over the course of five weeks. The first week is an intensive lab-based workshop comprising ten three-hour sessions, blending theoretical and practical elements. Over the next four weeks, we hold a weekly, evening, online surgery. In these surgeries, you will be invited to participate in online discussions. This will reinforce theoretical concepts and help put theory into practice, with the tutors. It will also allow you to seek further guidance on assessments as required.
Our supportive academics are experienced industry professionals and will guide you through problem-based learning via case studies and classroom-based exercises throughout the course.
You will also benefit from guest lecturers, helping you to understand current practices and prepare you for working life as a cyber security professional.
The majority of assessments come from coursework or team projects appropriate to the module. These often involve writing essays or reports, constructing artefacts, or taking practical examinations. They are designed to test your ability to apply and discuss key concepts.
What are the tuition fees
Home
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Home, Academic Year 2024 - 2025: £1,200 per year *
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Home, Academic Year 2025 - 2026: £1,250 per year *
Following the Government’s announcement of 4 November 2024, we will be increasing our full-time undergraduate tuition fees for UK students to £9,535 per year from the start of the 2025/26 academic year. Our part-time fees for UK undergraduate students will increase to £7,145 per annum. Please visit , on the Government’s website, for more information about the changes.
Tuition fees for Home undergraduate students (including with foundation year) may increase in subsequent years for both new and continuing students in line with an inflationary amount determined by the Government.  
Tuition fees for both new and continuing international students may be subject to an inflationary increase based on the Consumer Price Index (CPI) for the 12-month period to 31 January each year.  
Tuition fees for postgraduate courses and CPD may be subject to an inflationary increase based on the Consumer Price Index (CPI) for the 12-month period to 31 January each year. This increase will apply to both new and continuing students.  
We understand, and really appreciate, the significant financial commitment our students make when they choose to study at BNU. We take our responsibilities to our students very seriously, and are ambitious for each to reach their full potential and succeed in their chosen career. Our fees help us to continue providing our students with a high-quality education, and to invest in the services and facilities which create an excellent student experience at BNU.
The following factors will be considered by the University when we set the annual fees: measures of inflation such as the retail price indices; projected increases in University costs; and any changes in the level of funding for teaching received from the Government.
What are my career prospects?
Studying this course could help you succeed in any of the following careers:
- Cryptanalyst
- Cybersecurity Analyst
- Information Security Consultant
- Security Software Developer
- Network Security Engineer
- Forensic Security Specialist
- Cyber Intelligence Analyst
These roles leverage the knowledge and skills gained in cryptanalysis and cryptography to protect organisations from various cybersecurity threats.
Course leader
