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What information does the report include and how are the results interpreted?
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| bet | 10/17 | | Sana | 21.05.2024 | | Hajmi | 430,06 Kb. | | #248066 | | Turi | Guide |
Bog'liq DigitalEvidenceWhat information does the report include and how are the results interpreted?
Like other forms of evidence, digital evidence must remain pristine and unaltered. In a courtroom, text messages would most likely be shared on the
actual phone or digital device, but other evidence might be printed out, such as a string of emails or email headers.
Sample email header showing the path and timing of the message.
This can show a track record of information exchange, and the “hash value”, also referred to as a checksum, hash code or hashes, is the mark of authenticity and must be present and explained to courtroom participants.
Hash values calculated for the text string “forensic science”. Each line contains the search term value calculated using the unique algorithm in the left hand column.
A hash value is the result of a calculation (hash algorithm) performed on a string of text, electronic file or entire hard drive contents. Hash values are used to identify and filter duplicate files (i.e. email, attachments, and loose files) from a given source and verify that a forensic image or clone was captured successfully. For example, a hash function performed on a suspect’s hard drive should generate a hash value report that exactly match the report generated by using the same algorithm on the hard drive’s image, typically created by the laboratory for use in the investigation. Hash values are a reliable, fast, and a secure way to compare the contents of individual files and media. Whether it is a single text file containing a phone number or five terabytes of data on a server, calculating hash values is an invaluable process for evidence verification in electronic discovery and computer forensics.
Once verified, the information pulled from the files can be shown in the courtroom, such as photos or emails. In addition, email headers, showing the path and timing emails took to get from source to destination could be displayed.
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