Separating Semantic and Circular Security for Symmetric Key Bit Encryption from the Learnin

Separating Semantic and Circular Security for Symmetric Key Bit Encryption from the Learnin

Algorithms Cryptography Data Science Information Security Machine Learning Statistics Probability privacy-preserving technologies
Free
26 minutes
English

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Description

In this video, we explore the ideas of semantic and circular security for symmetric key bit encryption. We investigate what these terms imply regarding the security assumptions made by the encryption scheme and how they can help safeguard against unlawful access to encrypted data. We begin by defining the notion of semantic security, which asserts that an adversary cannot identify a specific secret key without knowing its value. We then examine the idea of circular security, which contends that if the adversary has some knowledge of the secret key, they still cannot distinguish between encryption of two different messages. We also consider situations in which the adversary knows some encryption of a portion of the secret key and discuss how these concepts can help protect against attacks. Overall, this video provides an overview of the fundamental principles of semantic and circular security for symmetric key bit encryption. learn more

Professions

Statistician Software Engineer Probabilist Privacy Specialist Machine Learning Engineer Information Security Analyst Data Scientist Cryptographer

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