@misc{cryptoeprint:2002:194, author = {P. Tuyls, H.D.L. Hollmann, J.H.v. Lint, L. Tolhuizen}, title = {A polarisation based Visual Crypto System and its Secret Sharing Schemes}, howpublished = {Cryptology ePrint Archive, Report 2002/194}, year = {2002}, url = {http://eprint.iacr.org/2002/194}, }