@misc{cryptoeprint:2019:492,
    author = {Daniel J. Bernstein and Andreas Hülsing},
    title = {Decisional second-preimage resistance: When does SPR imply PRE?},
    howpublished = {Cryptology ePrint Archive, Report 2019/492},
    year = {2019},
    url = {https://eprint.iacr.org/2019/492},
}