The aim of this text is to treat selected topics of the subject of contemporary cryptology, structured in five quite independent but related themes:

• efficient distributed computation modulo a shared secret
• multiparty computation
• foundations of modern cryptography
• provable security for public key schemes
• efficient and secure public-key cryptosystems.

Expanded and unified version of material presented in a lectures series at the CRM Barcelona in February 2004 Particularly multidisciplinary topic between mathematics, computer science and applications Includes supplementary material: sn.pub/extras

Inhalt
Efficient Distributed Computation Modulo a Shared Secret.- Multiparty Computation, an Introduction.- Foundations of Modern Cryptography.- Provable Security for Public Key Schemes.- Efficient and Secure Public-Key Cryptosystems.