@misc{cryptoeprint:2020:886, author = {Keita Emura and Atsushi Takayasu and Yohei Watanabe}, title = {Adaptively Secure Revocable Hierarchical IBE from $k$-linear Assumption}, howpublished = {Cryptology ePrint Archive, Report 2020/886}, year = {2020}, url = {https://eprint.iacr.org/2020/886}, }