NSF might correspond to DARPA, but not NASA. DARPA's remit is far wider than NASA's is. For example Solar Designer's work on a password-based key derivation fu

NSF might correspond to DARPA, but not NASA. DARPA's remit is far wider than NASA's is. For example Solar Designer's work on a password-based key derivation function has a DARPA funding component, but would hardly make sense for NASA.