The two-volume set LNCS 9452 and 9453 constitutes the refereed proceedings of the 21st
International Conference on the Theory and Applications of Cryptology and Information Security
ASIACRYPT 2015 held in Auckland New Zealand in November December 2015. The 64 revised full
papers and 3 invited talks presented were carefully selected from 251 submissions. They are
organized in topical sections on indistinguishability obfuscation PRFs and hashes discrete
logarithms and number theory signatures multiparty computation public key encryption ABE
and IBE zero-knowledge attacks on ASASA number field sieve hashes and MACs symmetric
encryption foundations side-channel attacks design of block ciphers authenticated
encryption symmetric analysis cryptanalysis privacy and lattices.
