Cryptography: Public-key Cryptosystem
Learn about the Cryptographic Applications of the Public-key Cryptosystem in this free online training course.
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This free online Cryptography and Public-key Cryptosystem Training Course in Cryptography, highlights the cryptographic applications of the Discrete Logarithm Assumptions and the Public-Key Encryption Scheme. In the first section, you will learn about the definition of CPA security and CCA security in the context of Public-Key Encryption. You will also learn about the El Gamal Encryption Scheme, the CPA-security of the El Gamal Cipher and the solutions to the problems encountered when the El Gamal Encryption Scheme is adopted. The generic construction of a Public-Key Cryptosystem from the one-way trap-door permutation will also be highlighted in the first section of the course. You will also be shown the notion of COA (CPA)-secure variants of the RSA Public-key Cryptosystem.
In the next section, you will be introduced to the concept of Hybrid Public-Key Encryption where you will learn about Key Encapsulation Mechanism Paradigm, the Computational Diffie-Hellman-based Key Encapsulation Mechanism in the Random Oracle Model, and the Diffie-Hellman based Key Encapsulation Mechanism in the standard model. The course will discuss the generic construction of CCA-Secure Public-Key Cipher from any CCA-Secure Key Encapsulation Mechanism and CCA-Secure Symmetric-Key Cipher. Thereafter, you will also learn about the CCA secure instantiations of the Hybrid Public-Key Cryptosystem based on Diffie-Hellman Problems.
Lastly, you will learn about the Malleability of the Plain RSA cipher, CCA-insecurity of padded RSA and the Instantiation of the Public-Key Cryptosystem based on RSA Assumptions. This course is a great starting point for anyone who is looking to pursue a career in Cryptography. It will also be highly relevant to those who want to learn more about Public-Key Cryptosystems and Ciphers. Why wait, start this course today!Start Course Now
Hybrid Public-Key Cryptosystem
CCA Secure Public-Key Ciphers
Public Key Cryptosystem - Learning Outcomes
RSA Public-Key Cryptosystem
El Gamal Encryption
Public-Key Cryptosystem - Lesson Summary
Public-Key Ciphers - Learning Outcomes
Plain RSA Cipher
Public-Key Ciphers - Lesson Summary
Identification Schemes and Zero-knowledge Protocol
Identification Schemes and Zero-Knowledge Protocol - Learning Outcomes
Identification Schemes and Zero-Knowledge Protocol - Lesson Summary
Upon successful completion of this course, you should be able to:
- Compare the differences between COA Security in the Public and Private-Key World
- State similarities between RSA Assumption and Factoring Assumption
- Discuss the Hybrid Public-Key Encryption Scheme
- Define the properties of Digital Signatures
- Outline similarities between Digital Signatures and MAC
- Discuss the Schnorr Identification Scheme
- State the fundamental theorem of Arithmetic
Summarise properties of the Zero-Knowledge Proof Protocol
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