zip.exe from Info-ZIP uses PKWARE’s traditional ZipCrypto , which is considered weak. For compliance with modern standards (e.g., GDPR protected data), use AES-256-capable tools (7z, WinRAR, .NET’s ZipFile ). 7. Performance and Comparison Tests performed on an Intel i7-1165G7, 16GB RAM, NVMe SSD. Dataset: 500 MB mixed files (source code, images, PDFs).
:: Delete a specific file from archive zip -d logs.zip old.log 5.1 Automated Backup Script (Batch) @echo off set DATE=%date:~10,4%%date:~4,2%%date:~7,2% zip -r -9 "D:\backups\data_%DATE%.zip" "C:\userdata" -x *.tmp echo Backup completed. 5.2 Build Artifact Packaging (CI/CD) Used in Makefiles or Jenkins pipelines to compress binaries: zip.exe for windows
zip -r -9 release.zip bin/ config/ README.md zip -m archived_logs.zip *.log :: zips and deletes original .log files 5.4 Password-Protected Distribution zip -e secure.zip confidential.docx :: Prompts for password (recommended over -P for security) 6. Security Considerations | Concern | Mitigation | |---------|-------------| | Plaintext password ( -P ) | Visible in ps /tasklist. Use -e interactive mode. | | Legacy encryption (ZipCrypto) | Vulnerable to known-plaintext attacks. Use AES-256 via -P ? No – Info-ZIP zip.exe does not support AES. For AES, use 7-Zip or PowerShell. | | Path traversal risks | Zip entries may contain ..\ paths. Validate with unzip -t or sanitize inputs. | | Malicious file extraction | Avoid unzip with -j (junk paths) on untrusted archives. | Performance and Comparison Tests performed on an Intel