@misc{cryptoeprint:2010:369, author = {Debrup Chakraborty and Cuauhtemoc Mancillas-Lopez}, title = {Double Ciphertext Mode : A Proposal for Secure Backup}, howpublished = {Cryptology ePrint Archive, Report 2010/369}, year = {2010}, url = {http://eprint.iacr.org/2010/369}, }