33,7 → 33,7 |
This file format is NOT used by (De)Coder. |
It is only the guideline of the DC4-Format. |
Hagen Reddmann posted the demo-algorithm in this topic: |
https://www.delphipraxis.net/topic79794,0,asc,0.html (in German) |
https://www.delphipraxis.net/66783-sichere-verschluesselung-von-dateien-mit-dem-dec-5-1-a.html (in German) |
|
--------------------------------------------------------------------------------------------------- |
Offset Type Size Content/Description |
110,7 → 110,7 |
Long 4 Size of data |
Binary var DEC 5.1c encrypted data; Password = Hash->KDfx(User-Password, Seed); KDFx is proprietary to DEC |
Byte 1 Size of CalcMAC |
Binary 0-255 CalcMAC; Size depends on cipher algorithm and cipher mode. The algorithms of DEC give out CalcMAC with the length 16-64. |
Binary 0-255 DEC "CalcMAC"; Size depends on cipher algorithm and cipher mode. The algorithms of DEC give out CalcMAC with the length 16-64. |
--------------------------------------------------------------------------------------------------- |
|
|