Computational ghost imaging encryption based on fingerprint phase mask

A computational ghost imaging encryption method based on fingerprint phase mask is proposed. In this work, we introduce one's fingerprint information into computational ghost imaging for the first time. The phase mask key in computational ghost imaging encryption is generated by a fingerprint image using digital holography method. As the phase key links to one's fingerprint which is uniqueness, this method offers a significant improvement for the security of computational ghost imaging encryption. Furthermore, because a fingerprint can verify one's identity, the proposed method can combine identity authentication with image decryption. In addition, the distances of recording and reconstruction during digital holography can be saved as additional keys which make the encryption system more secure. To verify the feasibility, security and ability to resist noise attack, some computer simulations are performed.