Exchanging Encrypted Documents Through Fax Machines | ||
| Journal of the ACS Advances in Computer Science | ||
| Article 3, Volume 5, Issue 1, 2011, Pages 37-48 PDF (3.3 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/asc.2011.158212 | ||
| Abstract | ||
| Even in this age of the Internet, the fax machine has remained an indispensable means of communication because of its speed, simplicity and reliability. Faxes are also virtually unequalled when it comes to sending documents in a manner which is legally binding or which preserves their legal character. However, phone and fax communication is easy to tap. If one has sensitive information to fax, you must encrypt it to protect it from the interfering eyes of others. This paper describes a system of exchanging encrypted documents (text or images) through fax machines based on the highest cryptographic standards. It was found that the encrypted images were affected by electronic and computation noise rather than text documents, when they were exchanged through fax machines by 27%. However, this percentage was decreased to 3% when the restored images passed on an average weighted filter of size 3x3 elements. The presented system was tested experimentally and its performance was found to be in average about 95%. The 5% off was attributed to the effect of electronic and computation noise and the capability of the Optical Character Recognitions (OCR). Thus this technology enhances the security of documents that have been printed and makes possible new services and solutions for preventing information from being leaked from printed material. | ||
| Keywords | ||
| Cryptography; Fax Machine; OCR; Boolean Operation; Image Enhancement | ||
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