I enjoyed reading the book because the author is always caring about the different references that he used to write the text. This allows the reader to go further in his understanding of what is presented. … I was pleased by the way the author presented all the different attacks and variant of RSA. I would recommend this book for people who would like to know more about the RSA and more precisely about the difficulties of attacking this cryptosystem with mathematical techniques. … this book can be used as a base for building a complete course on RSAs cryptanalysis.—Antoine Rojat, SIGACT News, December 2011I can honestly recommend this book. It is written straightforward and is therefore easy to read. Every step is explained and original sources are given, so if you want to look deeper into the background of a certain problem, you can easily do that. … a substantiated overview over the current state of cryptanalysis of RSA. …—IACR book reviews, January 2010