Can a new form of cryptography solve the internet’s privacy problem?

Techniques which allow the sharing of data whilst keeping it secure may revolutionise fields from healthcare to law enforcementRachel is a student at a US university who was sexually assaulted on campus. She decided against reporting it (fewer than 10% of survivors do). What she did, however, was register the assault on a website that is using novel ideas from cryptography to help catch serial sexual predators.The organisation Callisto lets a survivor enter their name in a database, together wit