Cryptology Research for High School Student?

John3 asks: "My daughter is enrolled in an Advanced Science Research (ASR) course, at the local high school. The students join the program in 10th grade, choose a research topic, and then locate a mentor to work with them on their topic until high school graduation. My daughter took a cryptology course this past summer, and now she has chosen cryptology for her ASR topic. Most HS students pick mainstream research fields (medicine, genetics), so her science teacher is a bit unsure of where my daughter might locate a cryptology research project appropriate for advanced high school students (especially one that doesn't require security clearance). I'm hoping my fellow Slashdot readers might know of current cryptology/cryptography research projects that offered opportunities for a high school student to participate."