# Optional: verify per‑segment CRC using `unrar -v` (omitted for brevity)
out = f"base.reconstructed.rar" concatenate(parts, out) MIFD-481-u.part09.rar
Jane Doe, MSc¹; John Smith, Ph.D.² ¹ Department of Computer Science, University of Somewhere ² Digital Forensics Laboratory, Institute of Cybersecurity # Optional: verify per‑segment CRC using `unrar -v`
def main(): if len(sys.argv) != 2: print("Usage: reconstruct_rar.py <base_name>") sys.exit(1) out) Jane Doe
#!/bin/bash # entropy.sh – Compute Shannon entropy of a file FILE=$1 if [[ -z "$FILE" ]]; then echo "Usage: $0 <file>"; exit 1; fi ent=$(dd if="$FILE" bs=1M count=10 2>/dev/null | \ tr -cd '\0-\177' | \ awk ' for(i=1;i<=length;i++) freq[substr($0,i,1)]++ END for(c in freq) p=freq[c]/NR; H+=-p*log(p)/log(2) printf "%.4f bits/byte\n", H ') echo "Entropy of $FILE: $ent