Welcome to the resource topic for 2018/135
Title:
A note on the equivalence of IND-CCA & INT-PTXT and IND-CCA & INT-CTXT
Authors: Daniel Jost, Christian Badertscher, Fabio Banfi
Abstract:The security for authenticated encryption schemes is often captured by demanding CCA security (IND-CCA) and integrity of plaintexts (INT-PTXT). In this short note, we prove that this implies in particular integrity of ciphertexts, i.e., INT-CTXT. Hence, the two sets of requirements mentioned in the title are equivalent.
ePrint: https://eprint.iacr.org/2018/135
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