#RECEIPTS APP FOR MAC HOW TO#
#RECEIPTS APP FOR MAC MAC#

The first big blob of hex is a payload signed with sha1. You’ll see that it contains a certificate chain with Apple’s root CA, the developer CA, and the receipt signing certificate. Subject: CN=Mac App Store Receipt Signing, OU=Apple Worldwide Developer Relations, O=Apple Inc., C=US Issuer: C=US, O=Apple Inc., OU=Apple Worldwide Developer Relations, CN=Apple Worldwide Developer Relations Certification Authority Signature Algorithm: sha1WithRSAEncryption We can look at its certificates using openssl’s pkcs7 command: $ openssl pkcs7 -inform der -in /Applications/Xcode.app/Contents/_MASReceipt/receipt -print_certs -text Certificate: The receipt file itself is a PKCS #7 container, as defined by RFC2315, with its payload encoded using ASN.1.

#RECEIPTS APP FOR MAC MAC#

Let’s poke around and see what’s inside those receipt files the Mac App Store puts inside every app bundle. Where can I find which account was used to by a particular app? In this case Server.app… The /Users/myuser/Library/Preferences/ AppleID will tell me what account I’m using now but that’s it. Looks like binary peaces of certs but nothing close to an AppStore account. I’m looking for a way to find out which account was used to by an app, the _MASreceipt library looked like the right place to look.ĭoesn’t matter how I trie to read the receipt all I get is bits of readable info that makes very little sense to me. Is it just me or have anyone been able to read something useful out of the app/Contents/_MASReceipt/receipt?

#RECEIPTS APP FOR MAC HOW TO#

Yngve Åström asked if anyone knew how to tell which Apple ID installed an app store app on the MacEnterprise mailing list:

Receipts app for mac