Day 1: March 16, 2017
Prof. Chester Rebeiro initiated the first session with a brief introduction to cryptography. He discussed the relevance of cryptography in Information Security and stated the fundamental uses of cryptography and its application in Confidentiality, Data Integrity, Authentication and Non - repudiation. He gave a short description of the process of public key encryption. With the help of an example, he demonstrated how public key encryption can be used to ensure confidentiality of data. He discussed a variant of One Way Function known as Trapdoor One Way Function. Using a diagram, he explained how digital signatures can be implemented to thwart non-repudiation.