# `Storehouse.Archive.Zip`
[🔗](https://github.com/hattoriai/storehouse/blob/v0.2.0/lib/storehouse/archive/zip.ex#L1)

The zip format of `Storehouse.Archive`, its default: opened by every
system, as it is made, with nothing on the disk.

  * Each file is compressed (deflate) or stored as it is, as the
    archive's `:compression` says: by default, compressed where it
    shrinks. A file stored as it is goes in deflate's stored blocks,
    each of which says its size: a reader that reads the zip as it
    comes finds each file's end from them, never from the file's own
    bytes, which a file could make look like another file's start.
  * With `:password`, each file is encrypted with AES-256 (WinZip's
    AE-2, a key of the password for each file, PBKDF2 and HMAC-SHA1):
    7-Zip, WinZip, Keka and The Unarchiver open it; macOS's Archive
    Utility and Windows' own zip folders do not. The files' names are
    not encrypted.
  * Past 4 GB a file, or 65,535 files, it is ZIP64.

Each file is followed by its CRC-32 and sizes (a data descriptor), so
nothing is read twice.

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*Consult [api-reference.md](api-reference.md) for complete listing*