Synchronized chaotic phase masks for encrypting and decrypting images
ABSTRACT: This paper presents an alternative to secure exchange of encrypted information through public open channels. Chaotic encryption introduces a security improvement by an efficient masking of the message with a chaotic signal. Message extraction by an authorized end user is done using a synch...
| Authors: | , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2008 |
| Country: | Colombia |
| Institution: | Universidad de Antioquia |
| Repository: | Repositorio UdeA |
| Language: | English |
| OAI Identifier: | oai:bibliotecadigital.udea.edu.co:10495/11900 |
| Online Access: | http://hdl.handle.net/10495/11900 |
| Access Level: | Open access |
| Keyword: | Chaotic phase generation Optical encryption Synchronized swimming |
| Summary: | ABSTRACT: This paper presents an alternative to secure exchange of encrypted information through public open channels. Chaotic encryption introduces a security improvement by an efficient masking of the message with a chaotic signal. Message extraction by an authorized end user is done using a synchronization procedure, thus allowing a continuous change of the encrypting and decrypting keys. And optical implementation with a 4f optical encrypting architecture is suggested. Digital simulations, including the effects of missing data, corrupted data and noise addition are shown. These results proof the consistency of the proposal, and demonstrate a practical way to operate with it. Keywords: Optical encryptionChaotic phase generationSynchronization system |
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