I know basically nothing about cryptography, but Scheier is the first to my mind...

xatax on April 16, 2013 | parent | context | favorite | on: The Boston Marathon Bombing: Keep Calm and Carry O...

I know basically nothing about cryptography, but Scheier is the first to my mind as well. The only other name that even comes to my mind is Colin Percival, but that's only because of his comments on HN (cperciva).