Lattice-based cryptography is the use of conjectured hard problems on point lattices in Rn
as the foundation for secure cryptographic systems. Attractive features of lattice cryptography …

Indistinguishability obfuscation, introduced by [Barak et. al. Crypto 2001], aims to compile
programs into unintelligible ones while preserving functionality. It is a fascinating and …

Along with the rapid development and wide application of information technology, human
society has entered the information era. In this era, people live and work in cyberspace …

Functional encryption is a modern public-key paradigm where a master secret key can be
used to derive sub-keys SK_F associated with certain functions F in such a way that the …

The first edition of this book was published in 2003. Inevitably, certain parts of the book
became outdated quickly. At the same time new developments have continued apace …

In this work, we show how to use indistinguishability obfuscation to build multiparty key
exchange, efficient broadcast encryption, and efficient traitor tracing. Our schemes enjoy …

The arrival of indistinguishability obfuscation (i O i O) has transformed the cryptographic
landscape by enabling several security goals that were previously beyond our reach …

In predicate encryption, a ciphertext is associated with descriptive attribute values x in
addition to a plaintext μ μ, and a secret key is associated with a predicate f. Decryption …

We show the existence of indistinguishability obfuscators (iO) for general circuits assuming
subexponential security of:(a) the Learning with Errors (LWE) assumption (with …

In a functional encryption scheme, secret keys are associated with functions and ciphertexts
are associated with messages. Given a secret key for a function f, and a ciphertext for a …