Terms and Definitions

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This document uses the following acronyms and terms





Source: FIC Recommendation - Definitions                

Definitions below are consistent with the ISO 18013-5 definitions where noted, and with the Department of Homeland Security where noted (Federal Register 6 CFR Part 37 [docket No. DHS-2020-0028])

Authenticate means establishing that a certain thing (e.g., mDL Data) belongs to its purported owner (e.g., mDL Holder) and has not been altered. (DHS)                                                

A Certificate Authority issues Digital Certificates that are used to certify the identity of parties in a digital transaction.(DHS)

Data Freshness refers to the synchronization of mDL Data stored on a mobile device to data in a DMV’s database, within a specified time period. (DHS)                                                  

Department of Motor Vehicles (DMV) refers to the state agency or its authorized agent responsible for issuing an mDL and for maintaining mDL data in its database. (DHS)          

Device Retrieval has the meaning ISO18013-5 defines in 3.16 device retrieval.

Digital Certificates establish the identities of parties in an electronic transaction, such as recipients or digital signatories of encrypted data. (DHS)                                                

Digital ID means a physical representation of a physical ID e.g. mobile driving license, mobile national ID or mobile passport, a superset of Issuing authority credentials defined in ISO18013-5 section 3.2. Mdoc  

Digital Signatures are mathematical algorithms routinely used to validate the authenticity and integrity of a message. (DHS)

Identity Proofing refers to a series of steps that a DMV executes to prove the identity of a person.(DHS)                        

Identity Verification is the confirmation that identity data belongs to its purported holder. (DHS)              

Issuance includes the various processes of a DMV to approve an individual’s application for a REAL ID driver’s license or identification card. (DHS)                                              

Issuing Authority refers to ISO18013-5 section 3.13 issuing authority, which may be at a national level  (ISO18013-5 section 3.11 issuing country) or a local level jurisdiction.

Issuing Authority Infrastructure refers to ISO18013-5 section 3.14 issuing authority infrastructure

An mDL is a digital representation of the information on a state-issued physical DL/ID, and is stored on, or accessed via, a mobile device. (DHS)   An mDL is a subset of Digital IDs that may be issue by an issuing authority.               

mDL Data is an individual’s identity and DL/ID data that is stored and maintained in a database controlled by a DMV and may also be stored and maintained on an individual’s mDL. (DHS)                   

mDL Holder refers to the owner of a mobile device. (DHS)        

mDL Reader refers to an electronic device that ingests mDL Data from a mobile device.  (DHS) Also refers to ISO18013-5 section 3.7.mDL Reader.

mID means a mobile version of a physical national ID credential, such mobile version having been issued by an Issuing Authority.

Mobile device means ISO18013-5 definition in 3.1 mobile device. (DHS)

mPassport means a mobile version of a physical passport credential, such mobile version having been issued by an Issuing Authority.

Offline means no live connection to the internet. (DHS)

Online means a live connection to the internet.   (DHS)  

An mDL Public Key Distributor is a trusted entity responsible for compiling and distributing Digital Certificates issued by DMVs (DHS) which has the same definition and role as defined in ISO18013-5 section 3.15 issuing authority CA.

Public Key Infrastructure (PKI) means a structure where a Certificate Authority uses Digital Certificates for Identity Proofing and for issuing, renewing, and revoking digital credentials. (DHS)

Provisioning refers to the various steps required for a DMV to securely place an mDL onto a mobile device. (DHS)

Relying party means  ISO 18013-5 section 3.5 mdoc verifier or a 3.9 mDL Verifier.

Server Retrieval means  ISO 18013-5 section3.17 server retrieval definition.

Server Retrieval Token mean  ISO 18013-5 section 3.18 server retrieval token definition.

Terminal means  ISO 18013-5 section 3.3. mdoc reader or ISO18013-5 section 3.7.mDL Reader.

Token means a cryptographic key used to authenticate a person’s identity. (DHS)

User means  ISO 18013-5 section 3.3. 3.4 mdoc holder



This section contains references for common terms and definitions related to PEMC WG products.

Source: ISO/IEC 18013-5:2021

ISO makes available Section 3 Terms and Definitions of published International Standards. 

 From ISO Online Browsing Platform (OBP) Retrieved 2021-11-24

3   Terms and definitions

For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:

mobile deviceportable computing device that at least:

  • has a small form factor such that it can easily be carried by a single individual;

  • is designed to operate, transmit and receive information without a wired connection;

  • possesses local, nonremovable or removable data storage;

  • includes a self-contained power source;

  • includes a display;

  • includes a means for the holder of the portable computing device to interact with the device

Note 1 to entry: Adapted from NIST SP 800-157.

document or application that resides on a mobile device (3.1) or requires a mobile device as part of the process to gain access to the document or application

mdoc reader
device that can retrieve mdoc (3.2) data for verification purposes

mdoc holder
individual to whom an mdoc (3.2) is issued

mdoc verifier
person or organization using and/or controlling an mdoc reader (3.3) to verify an mdoc (3.2)

driving licence that fulfils at least the same function as an IDL but, instead of being paper or plastic based, is an mdoc (3.2)
Note 1 to entry: ISO-compliant driving licence (IDL) is defined in ISO/IEC 18013-1.

mDL reader
mdoc reader (3.3) that can retrieve mDL (3.6) data

mDL holder
individual to whom an mDL (3.6) is issued, i.e. legitimate holder of the driving privileges reflected on an mDL

mDL verifier
person or organization using and/or controlling an mDL reader (3.7) to verify an mDL (3.6)

licensing authority
authorized agent organisation that issues a driving licence
National, federal, state, provincial, regional, territorial, or local Ministry of Transport, Department of Motor Vehicles, or Police Agency.
[SOURCE:ISO/IEC 18013-1:2018, 3.15]

issuing country
country which issued the driving licence or within which the licensing authority (3.10) is located
[SOURCE:ISO/IEC 18013-1:2018, 3.12, modified — The words “according to Annex F” have been removed.]

issuing authority
licensing authority (3.10), or issuing country (3.11) if separate licensing authorities have not been authorized
[SOURCE:ISO/IEC 18013-1:2018, 3.11]

issuing authority infrastructure
infrastructure under control of the issuing authority (3.12)

issuing authority CA
certificate authority operated by or on behalf of an issuing authority (3.12)

device retrieval
method of data retrieval exclusively using the interface between the mdoc (3.2) and the mdoc reader (3.3)

server retrieval
method of data retrieval using the interface between the mdoc reader (3.3) and the issuing authorityinfrastructure (3.13)

server retrieval token
token identifying the mdoc holder (3.4) and the mdoc (3.2) to the issuing authority (3.12)

PCD mode
mode in which an NFC-enabled mobile device (3.1) operates as a PCD
[SOURCE:ISO/IEC 14443‑3:2018, 3.7, modified — The words “a PXD” have been replaced with “an NFC-enabled mobile device”.]

PICC mode
mode in which an NFC-enabled mobile device (3.1) operates as a PICC
[SOURCE:ISO/IEC 14443‑3:2018, 3.8, modified — The words “a PXD” have been replaced with “an NFC-enabled mobile device”.]

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