The Director’s Summer Program (DSP) and the Cryptanalysis and Signals Analysis Summer Program (CASASP) are paid 12-week programs that run from the end of May through mid-August each year. The DSP is looking for students who have distinguished themselves in undergraduate research or national mathematics competitions. At the beginning of the summer, students are presented with introductory lectures on modern cryptography and a set of problems that NSA mathematicians are actively investigating. Each student chooses one of these problems as the focus of their research. The CASASP gives undergraduate mathematicians and computer scientists a chance to contribute to mission-essential technical operations at the National Security Agency (NSA). The CASA mission is to transform collected data into a format analysts can readily consume for intelligence purposes by analyzing signals and protocols, and overcoming security measures. Each summer we invite students to learn, use, and further NSA’s tradecraft as they work on operational problems of national importance.