challenge: What recognition did Cryptomathic's chief cryptographer Vincent Rijmen receive in 2002?
  
  A. He was elected as a fellow of the Royal Society
  B. He was awarded the Turing Award
  C. He was named one of the top 100 innovators in the world under the age of 35 by the MIT Technology Review TR100
  D. He received the National Medal of Science
  Answer: 