US 12,388,639 B2
Encryption and decryption using phase recovery
Okan Ersoy, West Lafayette, IN (US)
Assigned to WAVEFRONT ANALYSIS SYSTEMS LLC, New York, NY (US)
Filed by Gerchberg Ophthalmic Dispensing, PLLC, New York, NY (US)
Filed on Feb. 1, 2023, as Appl. No. 18/162,926.
Claims priority of provisional application 63/305,335, filed on Feb. 1, 2022.
Prior Publication US 2023/0246832 A1, Aug. 3, 2023
Int. Cl. H04L 9/08 (2006.01); H04L 9/06 (2006.01); H04L 9/12 (2006.01); H04L 9/40 (2022.01); H04L 12/22 (2006.01)
CPC H04L 9/0894 (2013.01) [H04L 9/0618 (2013.01); H04L 9/12 (2013.01); H04L 12/22 (2013.01); H04L 63/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for improving information security of an input signal, the method comprising:
encrypting the input signal, based on concurrently executing a plurality of sequences of transformations of the input signal, and for each sequence of the plurality of sequences:
(i) performing a discrete Fourier transform on the input signal;
(ii) removing phase information from the input signal, while preserving, on the spectral plane, amplitude information of the input signal; and
(iii) ciphering the input signal based on a unique key that corresponds to the sequence,
wherein executing each one of the sequences produces a corresponding encrypted data signal, and recreation of the input signal requires each of the encrypted data signals and the corresponding unique key.