Hi vastmine1029! If you are looking to decrypt the payload of another organization's NFC-enabled pass this is not possible. The NFC-payloads are encrypted with merchant-specific key pairs (this is a heavy simplification of the security) and cannot be read even with Apple VAS compatible readers without one of one of these keys. If you are referring to NFC-enabled passes that were created by your organization you'd need to reach out to your IT admin or terminal integrator/manufacturer for the organization-specific public key as well as any necessary decryption info.