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.