@misc{cryptoeprint:2016:798, author = {Karthikeyan Bhargavan and Gaëtan Leurent}, title = {On the Practical (In-)Security of 64-bit Block Ciphers: Collision Attacks on HTTP over TLS and OpenVPN}, howpublished = {Cryptology ePrint Archive, Report 2016/798}, year = {2016}, url = {https://eprint.iacr.org/2016/798}, }