View source for Mobile Driver's License Presentation

==Full Title or Meme==
[[Mobile Driver's License Presentation]] maps ISO 18013-5 wallet presentation to [https://identity.foundation/presentation-exchange/spec/v1.0.0/ DIF Presentation Exchange].

==Context==
* The  [https://identity.foundation/presentation-exchange/spec/v1.0.0/ DIF Presentation Exchange] is looking for test cases. This is such a test case (ie a use case with teeth).
* This use case looks at the wallet as the source of Presentation Statements, which is not necessarily the full scope of the DIF WG.
===Actors===
* Holder = The entity that submits proofs to a Verifier to satisfy the requirements described in a Presentation Definition (may or may not be the subject)
* mDL holder = individual to whom an mDL is issued = legitimate holder of the driving privileges reflected on an mDL = subject of the mDL
* Verifier = The entity that defines what proofs they require from a Holder (via a Presentation Definition) in order to proceed with an interaction.
* mDL verifier = entity using an mDL reader to verify an mDL
* Issuing Authority = trusted signer of data elements

==Transaction==
# The holder and verifier establish a session
# The verifier asks for mDL data
# mDL send data by value or by reference
# The verifier may or may not request other data
*Transport can be by various NFC or QR code.
*Format is CBOR - represented here as json.
==Security==
{| class="wikitable" style="text-align: center;"
!data
! colspan="4" |mDL
! colspan="4" |DIF
!Comments
|-
!scope="row" |Encryption
| colspan="4" |Encrypting with authentication of the mdoc requests and mdoc responses with the session key protects mdoc data from eavesdropping and alteration.
| colspan="2" |1 byte (CBOR data item header)
|Variable
|Variable
|etc...
|-
!scope="row"|ekys
| colspan="4" |standard ephemeral key ECDH to establish session keys
|Additional information
|Payload length (optional)
|Data payload (optional)
|etc...
|-
!scope="row"|docRequests
|3 Bits
|5 Bits
|8 Bits × variable
|8 Bits × variable
|3 Bits
|5 Bits
|8 Bits × variable
|8 Bits × variable
|etc..
|}

==Request==
{| class="wikitable" style="text-align: center;"
!data
! colspan="4" |mDL
! colspan="4" |DIF
!Comments
|-
!scope="row" |Device request
| colspan="4" |The point of this piece is the assurance that the device is trustworthy
| colspan="2" |1 byte (CBOR data item header)
|Variable
|Variable
|etc...
|-
!scope="row"|version
| colspan="4" |tstr
|Additional information
|Payload length (optional)
|Data payload (optional)
|etc...
|-
!scope="row"|Security
|3 Bits
|5 Bits
|8 Bits × variable
|8 Bits × variable
|3 Bits
|5 Bits
|8 Bits × variable
|8 Bits × variable
|etc..
|}

==Response==

==Reference==
* [https://github.com/decentralized-identity/presentation-exchange/issues GitHub issues] of the Presentation Exchange.


[[Category: Authentication]]
[[Category: Assurance]]
[[Category: Use Case]]