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.
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...