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m0nastic · 2012-07-06 · Original thread
It's a little pricey (I think it's meant as a textbook), but DJB has a book on post-quantum cryptography‡

He also has an intro paper (which is probably more along the lines of what you're looking for)‡

Hash-based cryptography, code-based cryptography, lattice-based cryptography, and multivariate-quadratic-equations cryptography are all methods that should hold up in a post-quantum world.

RSA will be screwed though.

http://www.amazon.com/Post-Quantum-Cryptography-Daniel-J-Ber...

http://www.pqcrypto.org/www.springer.com/cda/content/documen...

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