6533b82cfe1ef96bd128ffd2
RESEARCH PRODUCT
Optical security and encryption with totally incoherent light
Bahram JavidiPedro AndrésJesús LancisEnrique Tajahuercesubject
AuthenticationHigh securitybusiness.industryComputer scienceMultispectral imageComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONOptical securityEncryptionAtomic and Molecular Physics and OpticsOptical encryptionDiffractive lensOpticsComputer Science::MultimediabusinessOptical processorComputer Science::DatabasesComputer Science::Cryptography and Securitydescription
We present a method for securing and encrypting information optically by use of totally incoherent illumination. Encryption is performed with a multichannel optical processor working under natural (both temporal and spatially incoherent) light. In this way, the information that is to be secured can be codified by use of color signals and self-luminous displays. The encryption key is a phase-only mask, providing high security from counterfeiting. Output encrypted information is recorded as an intensity image that can be easily stored and transmitted optically or electrically. Decryption or authentication can also be performed optically or digitally. Experimental results are presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-05-15 | Optics Letters |