Composition of privacy mechanisms

This is the third post of my data privacy series. Please refer to the first post for the definition of differential privacy and the second post for privacy mechanism. Robustness of differential privacy versus processing If a mechanism is -differential private to begin with, then further operation on is still -differential private. Proof: Let’s assume…

Privacy Mechanisms

This is the second post of my data privacy series. You may want to also check out this post for an introduction to data privacy and differential privacy. 🙂 For convenient, let’s repeat the definition of differential privacy from the previous post. Definition: -Differential Privacy The query is -differentially private if and only if for…