Algorithms for Post Quantum Cryptography

paypal.me/professorH How many approaches will this wikipedia article cover to post-quantum cryptography research? What is ring-learning? What should we study, rather than the NTRU algorithm? What is a multivariate equation? What is an example of a multivariate signature scheme? What is an alternative to hash algorithms? What does number-theoretic mean? What does unlimited-time? What type of codes are used in the McEliece signature? Why are variants of this McEliece scheme insecure? What does the Cryptography Study Group (sponsored by the European Commision) suggest we use for an encryption system? What is a supersingular elliptic curve similar to? Do we have anything to fear when it comes to quantum computers breaking our encryption?