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Mastering Cryptography for Blockchain Security
Your blockchain projects need a clear understanding of trust and security. Connect technical mechanisms with use cases and risks to assess the available choices. Develop practical guidelines for design and discussions with specialists.
- Duration
- 3 days 21 hours
- Code
- SSR004FR Code
Presentation
Cryptography is the science and art of securing communications and data by making them unintelligible to third parties. Blockchain is a technology for storing and transmitting information without a central controlling authority. It relies on cryptography to ensure data integrity, authenticity and traceability, creating an immutable, distributed digital ledger.
This intensive 3-day course covers the principles and techniques of modern cryptography before focusing on their practical application to blockchain systems. The programme guides you from cryptographic algorithm analysis and key management to blockchain architecture and smart contract security.
By the end of the programme, you will have developed expertise in understanding cryptographic algorithms and consensus mechanisms. Through practical workshops, you will learn to use encryption tools and simulate secure transactions, preparing you to assess security issues associated with blockchains.
Objectives
By the end of this advanced cryptography and blockchain course, you will be able to:
- understand the fundamental principles of symmetric and asymmetric cryptography;
- identify cryptographic algorithms used in blockchain networks;
- demonstrate the importance of cryptography in securing blockchain transactions;
- use encryption and digital signature tools in practice;
- analyse the risks and limitations of cryptographic systems in a blockchain context.
Program
Module 1: understanding cryptography fundamentals
- Key cryptography concepts: confidentiality, integrity, authenticity and non-repudiation.
- Security models: secure channels and passive or active adversaries.
Module 2: analysing cryptographic algorithms
- Symmetric cryptography: AES and its encryption modes, including CBC and GCM.
- Asymmetric cryptography: RSA, Diffie-Hellman and ECC.
- Hash functions: SHA-2, SHA-3 and BLAKE2.
Practical exercises
- Encrypt and decrypt data with OpenSSL and Python.
- Generate RSA/ECC keys and sign messages.
Module 3: managing signatures, integrity and keys
- How digital signatures work: RSA and ECDSA.
- Public key infrastructure (PKI) and X.509 certificates.
- Key and secret management: HSM, Vault and KMS.
Module 4: introduction to cryptanalysis and attacks
- Side-channel attacks and hash collisions.
- Common implementation vulnerabilities: Heartbleed and ROCA.
Practical exercises
- Create and verify certificates.
- Simulate a hash collision attack.
Module 5: applying cryptography to blockchain
- Blockchain architecture: block structure, Merkle trees and timestamping.
- Consensus protocols: PoW, PoS, DPoS and BFT.
- Applying cryptography to major blockchains such as Bitcoin, Ethereum and Zcash.
Module 6: securing smart contracts
- Programming languages such as Solidity and Vyper, and the Ethereum Virtual Machine (EVM).
- Common vulnerabilities: reentrancy, overflow and front-running.
- Using audit tools such as MythX, Slither and Remix.
Practical exercises
- Deploy a smart contract on an Ethereum testnet.
- Analyse vulnerabilities in a real contract.
Audience
This course is intended for:
- Blockchain developers seeking deeper expertise in blockchain's cryptographic foundations and security mechanisms.
- Security engineers and IT architects seeking deeper expertise in blockchain system security.
- Cybersecurity or cryptography students who want to connect theory with practical application in a blockchain context.
- IT recruiters who want to understand the key skills required for cryptography and blockchain roles.
Prerequisites
The following prerequisites apply:
- Programming knowledge: familiarity with at least one programming language, such as Python or JavaScript, is an advantage for the practical workshops.
- Basic mathematical concepts: knowledge of algebra and modular arithmetic to understand cryptographic foundations.
- Computing and networking fundamentals: an understanding of client-server architectures and communication protocols is recommended.
Teaching and assessment methods
- Initial skills assessment
- Training materials provided to participants
- Continuous assessment throughout the course
- End-of-course feedback questionnaire
- Combination of theory and practical application
- Attendance records
- Post-course follow-up evaluation
- Practical exercises
Course highlights
- Intensive learning: explore modern cryptography foundations and their application in blockchain systems.
- Interactive hands-on practice: master the concepts through workshops using cryptographic tools and simulating secure blockchain transactions.
- Key skills development: understand cryptographic algorithms and consensus mechanisms, and assess the risks and limitations of cryptographic systems in blockchain.
Dates and sessions
Choose the date and delivery format that suit you.
No upcoming sessions are currently available.