[V3][IS/ES9.0] File Secure Deletion algorithm
1. Summary
In V3 Internet Security 9.0 / Endpoint Security 9.0, there is File Secure Deletion function.
- Tools > Secure Deletion
File Secure Deletion consists of 5 steps. This section describes the file Secure Deletion algorithm used by each level.
2. Contents
| Option | Speed | Algorithm | Overwriting Frequency |
| Very High | Very Slow | P.Gutmann Algorithm | 35 Times |
| High | Slow | US NSA Erasure Algorithm | 7 Times |
| Medium (Recommended) | Medium | US DoD 5220.22-M Standard(8-306/E, C and E) | 7 Times |
| Low | Fast | US DoD 5220.22-M Standard(8-306/E) | 3 Times |
| Very Low | Very Fast | Single Pass Algorithm | 1 Times |
3. Reference
P.Gutmann Algorithm : https://en.wikipedia.org/wiki/Gutmann_method
US NSA Erasure Algorithm : http://forensic.korea.ac.kr/DFWIKI/index.php/NSA_erasure_algorithm
US DoD 5220.22-M Algorithm : http://forensic.korea.ac.kr/DFWIKI/index.php/U.S._DoD_5220.23-M