Supports AES-256 encryption to protect your data with a password.
daemondevin/7-ZipPortable: A portable build of 7-Zip ... - GitHub Stepu.7z
Uses the LZMA and LZMA2 algorithms to significantly reduce file sizes. Supports AES-256 encryption to protect your data with
Combines multiple similar files into a single stream to achieve even better compression. Stepu.7z