It is long known, that almost all asymetric cyphers that are of practical importance today, are easiely broken, using Shor's algorithm
https://en.wikipedia.org/wiki/Shor's_algorithm which can only run on a "quantum computer". In particular every inverse logarithm and prime factorization based cypher, isn't exponentially complex but just polynomial in time, using that algorithm. Now looking at this http://spectrum.ieee.org/tech-talk/computing/hardware/scientists-confirm-dwave-computer-chips-compute-using-quantum-mechanics one may think, if it's time to implement a post quantum asymetric key cryptographic system. Are there any attemptes to do this? Are there discussions which of the mathematical possible systems are best in practice and so forth? Are there even implementations, yet? /mirco
