We are failing at the cyber security hierarchy of needs

Posted on by David Vassallo

Many of us are probably familiar with the concept of the “hierarchy of needs”. The concept is usually depicted as a pyramid with humans’ more essential needs — such as bodily function — at the bottom, with more non-essential but rewarding needs towards the top: Marlow’s Hierarchy of needs (https://en.wikipedia.org/wiki/Maslow's_hierarchy_of_needs)What if we extend this concept of a hierarchy of … Continue reading We are failing at the cyber security hierarchy of needs

Proxy re-encryption

Posted on by David Vassallo

What is proxy re-encryption? Proxy re-encryption lets Alice send Bob a message (M) via a semi-trusted proxy, without revealing Alice's private key to either the proxy or Bob, and without revealing the secret message to the proxy. As Wikipedia puts it: "Proxy re-encryption schemes are cryptosystems which allow third parties (proxies) to alter a ciphertext … Continue reading Proxy re-encryption