Provide a simple script (Python 3) that shows how to retrieve EXIT Tags for a gi
ID: 3826572 • Letter: P
Question
Provide a simple script (Python 3) that shows how to retrieve EXIT Tags for a given image.
Name the three formats for digital forensics data acquisitions
Using the next table, convert a CHS to an LBA for each drive (all drives and configuration numbers are only . They are not real)
Drive
LBA
C
H
S
Head per Cylinders
Sectors per Cylinders
Maxtor 360
16
2
2
2
2
Seagate 500
16
5
5
2
3
Iomega XFE
32
5
3
3
3
WD 9AF
16
2
2
4
4
WD 1000
16
3
2
3
2
Drive
LBA
C
H
S
Head per Cylinders
Sectors per Cylinders
Maxtor 360
16
2
2
2
2
Seagate 500
16
5
5
2
3
Iomega XFE
32
5
3
3
3
WD 9AF
16
2
2
4
4
WD 1000
16
3
2
3
2
Explanation / Answer
1. Python Script to retrieve Exif Tags for an given image:
from PIL import Image from PIL.ExifTags import TAGS, GPSTAGS image = Image.open("gpsample.jpg") print(image) info = image._getexif() for tag, value in info.items(): key = TAGS.get(tag, tag) print(key + " " + str(value)
2. The three formats for digital forensics data acquisitions are:
Raw Format, Proprietary Formats, Advance Forensic Format
3.CHS to LBA can be converted using below formula:
where
From the table:
a.Maxtor 360
LBA=(C*HPC+H)*SPC+(S-1)
=(16*2+2)*2+(2-1)
=34*2+1
=69
Similarly you can work for other 4, After doing, We get the final answer as show in the below table:
Drive
LBA
C
H
S
Head per Cylinders
Sectors per Cylinders
Maxtor 360
69
16
2
2
2
2
Seagate 500
115
16
5
5
2
3
Iomega XFE
305
32
5
3
3
3
WD 9AF
265
16
2
2
4
4
WD 1000
103
16
3
2
3
2
Drive
LBA
C
H
S
Head per Cylinders
Sectors per Cylinders
Maxtor 360
69
16
2
2
2
2
Seagate 500
115
16
5
5
2
3
Iomega XFE
305
32
5
3
3
3
WD 9AF
265
16
2
2
4
4
WD 1000
103
16
3
2
3
2
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