@misc{cryptoeprint:1999:018, author = {Mihir Bellare and Amit Sahai }, title = {Non-Malleable Encryption: Equivalence between Two Notions, and an Indistinguishability-Based Characterization }, howpublished = {Cryptology ePrint Archive, Report 1999/018}, year = {1999}, url = {http://eprint.iacr.org/1999/018}, }