# Cayley Purser Algorithm

The **Cayley Purser algorithm** was published in early 1999 by Sarah Flannery, then 16, from Ireland . The algorithm was developed by her after the mathematician Arthur Cayley , named and by Michael Purser, the founder of the company. Baltimore.

According to Flannery, she got the idea for the new algorithm while doing an internship at Baltimore Technologies, a data security company based in Dublin .

The Cayley Purser algorithm is said to be 22 times faster than the RSA method because it uses simpler mathematical functions .

Flannery won first prize in a competition for young Irish scientists with the new algorithm , although (or because) she discovered a weak point in her process and published the analysis for it as well.

## literature

- Sarah Flannery and David Flannery:
*In Code: A Mathematical Journey*, ISBN 0-7611-2384-9 -
Klaus Schmeh :
*Code breakers versus code makers*, W3L Verlag Bochum, 2008, ISBN 978-3-937137-89-6