@InBook{ACHR07, author = { Ben Adida and David Chau and Susan Hohenberger and Ronald L. Rivest }, title = { Lightweight Email Signatures }, pages = { 435--453 }, booktitle = { Phishing and Countermeasures---Understanding the Increasing Problem of Electronic Identity Theft }, editor = { Markus Jakobsson and Steven Myers }, chapter = { 10.6 }, publisher = { Wiley }, date = { 2007 }, OPTyear = { 2007 }, htmlnote = { Revised version of ACHR06. }, }