Fonts design-shapes processing of text information structures in process of non-invasive data acquisition
This addresses information security for users vulnerable to electromagnetic penetration, but it is incremental as it builds on the existing Soft TEMPEST concept.
The authors tackled the problem of electromagnetic information leakage by designing two new computer fonts that prevent non-invasive data acquisition, achieving full usability while making electromagnetic infiltration impossible.
Computer fonts can be one of solutions supporting a protection of information against electromagnetic penetration. This solution is called -Soft TEMPEST-. However, not every font has features which counteract the process of electromagnetic infiltration. The distinctive features of characters of font determine it. This article presents two sets of new computer fonts. These fonts are fully usable in everyday work. Simultaneously they make it impossible to obtain information using the non-invasive method. Names of these fonts are directly related to the shapes of the characters. Each character of these fonts is built only with vertical and horizontal lines. The differences between them consist in the different widths of the vertical lines. The Symmetrical Safe font is built from vertical lines with the same widths. The Asymmetrical Safe font is built from vertical lines with two different widths of lines. However, the appropriate proportions of the widths of the lines and clearances of each character of the safe font have to be met.