@item Encryptionless confidentiality preserving encoding
@url{http://people.csail.mit.edu/rivest/chaffing-980701.txt,
Chaffing-and-Winnowing} (two Poly1305 MACs for each bit of message)
@item Encryptionless confidentiality preserving encoding
@url{http://people.csail.mit.edu/rivest/chaffing-980701.txt,
Chaffing-and-Winnowing} (two Poly1305 MACs for each bit of message)