Comment on Interferometric phase-only optical encryption system that uses a reference wave
Jesper Glückstad, Vincent R. Daria, Peter John Rodrigo · Optics Letters · 2003
We explain the vulnerability of the phase-only encryption procedure suggested by Seo and Kim [Opt. Lett. 28, 304 (2003)] and clarify issues regarding its robustness and degree of security compared with those of a previously reported phase-only encryption method.