This volume presents the proceedings of the 9th Theory of Cryptography Conference (TCC 2012), held in Taormina, Sicily, Italy, from March 19-21, 2012. The conference focuses on the theoretical aspects of modern cryptography. It brings together researchers to present and discuss recent advances in the field, covering a wide range of topics in cryptographic theory and practice.

As a collection of academic conference proceedings, this volume is primarily aimed at researchers and practitioners in the field of theoretical cryptography. It is expected to contain rigorous, peer-reviewed papers that advance the state of knowledge in cryptographic theory and its applications. The content likely reflects the current trends and challenges in the field as identified by the scientific community.