PKPASS

Last updated
PKPASS
Filename extensions
.pkpass, [1] .pkpasses
Internet media type
  • application/vnd.apple.pkpass
  • application/vnd.apple.pkpasses
Developed by Apple
Extended from ZIP

PKPASS is a file format for storage and exchange of digital passes developed by Apple for its Wallet application. Passes can replace physical paper or plastic cards, like a payment card, boarding pass, loyalty card or coupon. [2] The format specification has been published online [2] and this allowed for compatible implementations to be developed for other platforms like Android, [3] Windows [4] and Linux. [5]

Contents

Characteristics

The file is a ZIP archive with a filename extension .pkpass containing a set of digitally signed files describing the digital pass. Multiple .pkpass files can be further combined into a single ZIP archive with an extension of .pkpasses in order to combine several digital passes for ease of distribution.

The file contents of a sample PKPASS file might look like this:

icon.png is the digital pass icon. logo.png is displayed at the top left of the rendered pass.

Localized resources - like images and strings - are stored in subfolders named like this: <language_identifier>-<region_identifier>.lproj

The file pass.json is a JSON formatted dictionary describing the digital pass.

manifest.json contains a JSON dictionary containing SHA-1 hashes for all files except the manifest itself and the signature.

signature contains a PKCS #7 signature of the manifest file thus effectively signing all files in the bundle.

References

  1. ↑ "PKPASS file documentation" . Retrieved 2023-07-21.
  2. 1 2 "PassKit Package Format Reference". Apple Inc. Retrieved 2021-10-25.
  3. ↑ "Google Play: Search results for "pkpass"" . Retrieved 2021-10-25.
  4. ↑ "Windows store: Search results for "pkpass"". Microsoft . Retrieved 2021-10-25.
  5. ↑ "Flathub store: Search results for "pkpass"" . Retrieved 2023-06-21.
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