@misc{cryptoeprint:2015:1005,
    author = {Wenbin Zhang and Chik How Tan},
    title = {Cryptanalysis of Yasuda, Takagi and Sakurai's Signature Scheme Using Invariant Subspaces},
    howpublished = {Cryptology ePrint Archive, Report 2015/1005},
    year = {2015},
    url = {https://eprint.iacr.org/2015/1005},
}