Re: Re: The Ome Bertus thread Tuesday, 09-Feb-99 18:06:02
The zipped file is test.txt and contains: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" Without a password the zip file ends with: 05 06 00 00 00 00 01 00 01 00 36 00 00 00 2C 00 00 00 00 00 -- All password protected zip files ends with: 05 06 00 00 00 00 01 00 01 00 36 00 00 00 38 00 00 00 00 00 The bytes are: 0 mo password: -> 73 74 24 15 00 00 1 Password: ABCD -> 80 23 15 07 52 EC 13 86 2F A7 C3 A1 6D F2 8D 25 F9 84 2 Password: ABCDE -> 8A FC 3C CF C9 53 D1 85 5A 95 B0 C7 D1 74 A6 9A 02 D3 3 Password: ABCDF -> 88 85 23 4C 66 B6 6F 18 03 41 FF 64 45 D5 8A 08 44 15 4 Password: BBCDF -> 85 1F 64 7E 28 7A 07 62 E6 4F 82 56 FF 2C 2A 86 6F 41 So the answer to question 1 is no, they are different. 2. No, i have tried other longer passwords and it stays the same. But i tried also with another input file: test1.txt witch contains: "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBBBBBBBB" This is showing a simular result the 18 bytes are now 20 bytes. The zip file without a password has 8 insteat of 6 bytes in this position. This must mean something. 3. I don't know yet. But i a see the same when i using test1.txt. It is the same byte that is different in this situation. 4. No, i am getting messages like missing 192 bytes in zipfile. The number depends on the number i have entered. So this is not a CRC but it indicates the length of the zipfile. The differece between 38 and 2C is 12 and that is the difference in length using no password (6 bytes) and a password (18 bytes). Wel, it's getting late in Europe. I take a last beer and give it a next try tomorrow. Cheers, Ome Bertus Ome Bertus |
The Ome Bertus thread (Ome Bertus) (09-Feb-99 15:38:20) |