Cayley–Purser algorithm
The Cayley–Purser algorithm was a public-key cryptography algorithm published in early 1999 by 16-year-old Irishwoman Sarah Flannery , based on an unpublished work by Michael Purser , founder of Baltimore Technologies , a Dublin data security company . 
<triplet> Cayley–Purser algorithm <subj> algorithm <obj> instance of <subj> Sarah Flannery <obj> discoverer or inventor