Digital ID Integration: A Comparative Analysis

Par Nadim Paul Fares, Avocat et Farid Firouzbakhsh-Azimi, Étudiant

The implementation of digital identity systems is increasingly central to the digital transformation of public administration and service delivery by reshaping how states govern and how individuals interact with public and private institutions. Digital ID refers to a set of attributes enabling electronic identification and authentication, often embedded in digital wallets and supported by cryptographic or biometric technologies. Beyond their technical function, these systems raise fundamental legal questions concerning privacy, accountability, surveillance, and the balance between state authority and individual autonomy. A comparative overview of emerging regulatory approaches adopted in Canada, Québec, the European Union, the United Kingdom, and China, demonstrates how differing legal frameworks aim to condition the governance of digital identity and its compatibility with fundamental rights.

Emerging frameworks

Canada

Canadian digital ID governance is ushered in through a combination of legislative reform and multi-stakeholder standard-setting. Canada is developing its digital identity ecosystem through the Pan-Canadian Trust Framework (PCTF), coordinated by the Digital Identification and Authentication Council of Canada (DIACC), which establishes guidelines and common standards for digital identity service providers across both the public and private sectors[1]. The DIACC is a neutral, industry-led consortium bringing together governmental authorities, private organizations, and technical stakeholders to develop a secure, interoperable, and privacy-enhancing digital identity framework[2]. Its objective is to support a digital ecosystem that improves service delivery and enables Canada’s integration and participation in the global digital economy[3]. Rather than introducing a single national identity card, this approach emphasizes cross-jurisdictional interoperability enabling Canadians to use trusted digital credentials to eventually access a wide range of public services, such as Employment Insurance, the Canada Pension Plan, healthcare portals, tax services, as well as certain private-sector services[4].

In parallel, Bill C-27, An Act to enact the Consumer Privacy Protection Act, the Personal Information and Data Protection Tribunal Act and the Artificial Intelligence and Data Act, and to make consequential and related amendments to other Acts, signaled the federal government’s intention to modernize data governance within digital ecosystems[5]. However, Bill C-27 did not progress beyond the committee stage in the House of Commons and died on the Order Paper following the prorogation of Parliament in early 2025. Nonetheless, the Liberal government has since signaled its intention to resume consideration of the bill, potentially through a substantially revised legislative proposal aimed at establishing a comprehensive regulatory framework for artificial intelligence and to strengthen Canada’s competitiveness on the international stage[6]. The proposed Personal Information and Data Protection Tribunal Act (PIDPTA) would see the creation of an independent tribunal able to hear appeals and impose administrative penalties under the Consumer Privacy Protection Act (CPPA).

Although Bill C-27 does not expressly create a digital ID system, it remains highly relevant to digital identity governance as it establishes the groundwork for modernizing Canada’s data protection framework and introduces risk-based oversight for data-driven technologies. In this context, Canadian digital identity initiatives are increasingly understood as requiring safeguards that protect privacy, ensure sovereignty over personal data, and guarantee that users provide express and informed consent[7]. These principles would indirectly shape the design and deployment of digital ID systems by reinforcing accountability, transparency, and responsible data use within Canada’s evolving digital landscape.

Québec

In Québec, Bill 82, An Act respecting the national digital identity and amending other provisions, tabled in November 2024, establishes the legal foundation for a national digital identity system as part of the broader digital transformation of public administration within the province[8]. The Québec government committed in 2019 to the creation of the Service québécois d’identité numérique (SQIN), intended to provide every resident with a digital ID. Although initially scheduled for deployment in 2022, the implementation timeline has been extended for full integration across all government departments and agencies by 2028, according to Éric Caire, Minister of Cybersecurity and Digital Technology[9]. The national digital identity represents “all the means at the disposal of the State to guarantee every person secure access to government electronic delivery of services and enable every person to have a high level of trust during their interactions with public bodies”[10]. The Act assigns primary responsibility to the Minister of Cybersecurity and Digital Technology, who is tasked with the centralized governance of digital identity, the secure management of government data, and the coordination of digital identity initiatives across public bodies[11]. Bill 82 also provides for the creation of a national registry serving as the official source for government digital data[12]. As such, this new mechanism could require the Régie de l’assurance maladie du Québec (RAMQ) to transmit insured persons’ information, including name, date of birth, sex, address, telephone numbers, and spouse’s name to the Minister upon request[13].

European Union

In the European Union, digital identity implementation is governed by the revised Electronic Identification, Authentication and Trust Services Regulation (eIDAS 2.0), which establishes a harmonized legal framework for electronic identification and trust services across Member States[14]. Central to this reform is the introduction of the European Digital Identity Wallet (EUDI Wallet), which Member States are required to make available to citizens and residents by the end of 2026. The Wallet enables individuals to store and selectively disclose digital credentials, such as identity attributes, professional qualifications, and other official attestations, for use in both public and private sector transactions. Building on existing national eID schemes, eIDAS 2.0 mandates mutual recognition and cross-border interoperability, thereby reducing the fragmentation within internal markets across the EU. Anchored in the General Data Protection Regulation (GDPR), the framework emphasizes user control, data minimization, security by design, and consent-based disclosure, positioning digital identity as a rights-based instrument to facilitate access to services, electronic transactions, and cross-border mobility through the Union. Within the app, 400 million users will be able to access verified personal data such as their name and date of birth, address and nationality, academic and professional qualifications, social security or tax ID number, bank account details, vehicle insurance information, digital signatures, and more[15]. The EU Digital Identity Wallet is expected to be available to citizens by the first half of 2027, with pilot programs already underway in several Member States.

In December 2025, Canada and the European Union formalized a cooperation pact on digital identity governance through the establishment of the Canada–EU Digital Partnership Council and the signing of a Memorandum of Understanding on Digital Credentials, Digital Identity Wallets and Trust Services[16]. The agreement presents a shared commitment to align respective regulatory approaches and technical standards in order to support secure and interoperable digital identity systems and to ensure pathways toward future mutual recognition. Canada and the EU have agreed to facilitate expert dialogue, joint testing of digital credentials, and pilot projects involving digital identity wallets, drawing on Canada’s Pan-Canadian Trust Framework and the EU Digital Identity Wallet architecture[17]. In practical terms, this cooperation aims to enable Canadian and EU citizens to rely on trusted digital credentials across jurisdictions, simplifying identity verification for cross-border access to public services, employment-related processes, and digital transactions, while reducing duplication and administrative friction.

United Kingdom

In the United Kingdom, digital identity implementation has recently gained renewed political momentum with the government’s announcement of a proposed national digital ID scheme intended to facilitate access to public and private services. U.K. Prime Minister Keir Starmer said in September 2025 that the proposed digital ID will be mandatory for all adults to work in the country as of 2029[18]. The U.K. government has said the proposed IDs are intended to deter illegal workers from coming to the country in the context of immigration enforcement for ‘right-to-work’ checks. The scheme, referred to as the “BritCard”, is expected to operate primarily as a digital credential stored on a mobile device, serving as authoritative proof of identity and lawful residence including name, date of birth, nationality, and a photo as well as technologies used for biometric authentication[19]. While it is mandatory for employment verification purposes, its use would otherwise remain voluntary. Beyond employment verification, the proposed BritCard would also function as a digital identity credential for age assurance in everyday contexts, such as alcohol purchases in pubs[20] and to verify majority status when accessing age-restricted online services, including pornography platforms and other harmful content under the Online Safety Act[21].

The government has indicated that the system will rely on a federated data model, rather than a single centralized database, and will be governed by the UK GDPR and the 2018 Data Protection Act. Nonetheless, concerns have intensified following a £330 million, 7-year contract with Palantir Technologies, an American company specialising in artificial-intelligence-driven data analytics with origins in the US intelligence sector, under which NHS England deployed the Federated Data Platform to interconnect and analyse hospital data across NHS trusts in order to support system coordination and management[22]. Although presented as a tool to reduce administrative friction and modernize service delivery, the proposal of digital ID has revived longstanding debates and opposition in the UK concerning privacy, data security, and the risk of function creep associated with identity systems. Surprisingly, Palantir itself opted-out of the UK’s digital identification initiative, citing concerns over data privacy and lack of democratic mandate for the proposed system[23].

China

China’s rapid transition into the digital era, driven by extensive state-supported modernization, has profoundly reshaped its economy and social infrastructure. In 1984, China introduced a nationwide requirement obliging all citizens over the age of 16 to possess a resident identity card administered by the Public Security Bureau for a wide variety of public services[24]. In 2017, the Chinese government began to issue virtual ID cards hosted on WeChat, allowing Chinese citizens to use the digital ID stored on their smartphones instead of having to carry a physical card. WeChat operates as an all-encompassing app that integrates social networking, messaging, digital payments, e-commerce, transportation, healthcare, entertainment, and access to thousands of public and administrative services within a single platform[25]. The app functions simultaneously as a communication tool, a digital marketplace, a financial infrastructure, and a gateway to state and private services, making it an indispensable utility in everyday life in China. The large-scale data collected by China’s cyber authorities play an increasingly central role in governance and public policy, facilitating targeted interventions while enhancing the state’s ability to anticipate and manage social and economic risks[26].

In 2014, China launched the Social Credit System (SCS) as a digital governance mechanism intended to enhance regulatory oversight. China’s Social Credit System evaluates the trustworthiness of individuals and entities across administrative, commercial, social, and legal domains, extending beyond financial reliability to broader behavioural compliance[27]. While the SCS is presented as a tool to improve market regulation and promote compliant behaviour among economic actors, it also significantly expands state oversight over business and social activity. In doing so, it raises concerns about increased surveillance, limited privacy protections, and the concentration of discretionary regulatory power, potentially shifting governance away from rule-of-law constraints toward compliance-based control mechanisms[28].

Additionally, the Chinese government announced in June 2025 a virtual ID system that will allow users to sign-in across different internet services without repeatedly having to enter login credentials. The National Online Identity Authentication App requires users to authenticate their identity through the submission of an official government-based ID and biometric data, such as facials scans, as a condition for accessing online services, including social media platforms and websites[29]. The introduction of the National Online Identity Authentication App significantly reduces online anonymity by linking online interactions to a state-verified identity, limiting the space for anonymous participation in the digital sphere.

 

Fundamental rights considerations

The transition toward digital identification raises a number of risks and may exacerbate existing issues. Digital ID systems engage core fundamental rights, foremost among them the right to privacy and the protection of personal data which requires strict adherence to principles of collection minimization, purpose limitation, and proportionality. The large-scale processing of identity credentials through Big Data practices, especially in the case of centralized biometric data, amplifies risks of irreversible consequences in the event of breaches, identity theft, or system compromise. For instance, a 2021 security incident in Estonia, which is widely recognized as a leader in digital identity having operated its national digital ID system for more than two decades, enabled a hacker to obtain over 280 000 personal identity photos through an attack on the state information system[30]. In India, citizens’ personal data was being sold online for less than 500 rupees (around $5 USD) after the Aadhaar biometric system database was breached in 2018[31]. Where security safeguards are insufficient, digital identity systems expose individuals to heightened risks of unauthorized access and misuse by private and state actors, potentially resulting in identity compromise and associated problems such as fraud, extortion, and harassment in the absence of adequate mechanisms for redress.

Beyond cybersecurity concerns, digital identity systems raise significant risks of expanded state surveillance, particularly where identity credentials become mandatory for accessing essential services or participating in everyday social and economic activities. The centralization and interoperability of personal data may facilitate the aggregation of information throughout administrative domains, enabling continuous tracking, profiling, or secondary uses that exceed the original purpose of identification. For example, the use of digital identity wallets across government services can make it easier for the state to link identity and activity data across different systems, raising concerns about indirect surveillance and secondary re-use. Such dynamics heighten the risk of function creep, whereby systems initially designed for limited administrative objectives are progressively repurposed for law enforcement, migration control, or intelligence gathering.

Risks also arise from private sector activity. Big Tech firms, notably Google, Apple, Microsoft, Amazon and Meta platforms (GAMAM), dominate the digital economy through the large-scale accumulation of personal data concerning billions of users. Data extracted through everyday digital interactions is increasingly transformed into a private economic asset through targeted advertising, product development, or the training of algorithmic and artificial-intelligence systems[32]. The integration of digital ID systems into routine transactions therefore risks reinforcing existing data monopolies, entrenching first-mover advantages in artificial intelligence and algorithmic systems, and shifting power over identity, access, and behaviour away from individuals and public authorities towards Big Tech[33]. Beyond a certain threshold, the accumulation of vast quantities of data on large segments of the population by few private actors creates a structural imbalance of power where informational asymmetry enables forms of influence, control, and surveillance that exceed what was originally justified by efficiency or service delivery objectives.

Furthermore, the implementation of digital ID systems risks excluding significant segments of the population, including elderly people, unemployed individuals, people with disabilities, and those experiencing limited digital literacy or inadequate access to smartphones[34]. Young people are also disproportionately affected, constituting the second most digitally excluded group after the elderly[35]. As a result, the deployment of digital ID systems must be assessed not only through a security and efficiency lens, but also against their potential to reshape power relationships between the state and individuals, particularly for marginalized populations who may experience digital exclusion.

In the absence of clear legal limits, independent oversight, and effective remedies, digital ID infrastructures may erode informational self-determination by reducing individuals’ ability to control how, when, and why their identity data are used. These concerns are particularly important in contexts where automated decision-making and data analytics are introduced onto identity systems. From a legal perspective, these dynamics intensify states’ obligations to ensure robust safeguards, accountability, and risk mitigation, particularly where digital identity infrastructures intersect with automated decision-making, national security considerations, and the protection of fundamental rights. Ultimately, the challenge for modern governance is not whether to adopt digital identity systems, but how to ensure they remain instruments of trust rather than vectors of control and data exploitation.

Conclusion

While some countries have already implemented national digital identity systems, many others are in the process of developing them, reflecting divergent legal, political, and social foundations. A national digital identity system cannot be simply viewed as a technical infrastructure and necessarily requires a coherent legal framework governing identity management and the protection of personal data.Digital wallet and identification initiatives thus emerge at a critical juncture where states must choose between a centralized system that risks enabling mass surveillance, and a rights-based architecture that can preserve individual autonomy and trust within these digital technologies. Although governments justify digital ID systems through objectives such as administrative efficiency, security modernization, and fraud prevention, these aims must be reconciled with fundamental legal principles, including privacy, proportionality, and informational self-determination. A comparative examination of regulatory approaches developed by state actors illustrates how legal design choices shape the governance of digital identity in a storm of data-driven and AI-enabled governance.

Digital ID should be understood as a regulatory tool whose legitimacy depends on clear legal bases, transparency, and effective oversight. While such systems may enhance efficiency and security, their design must incorporate privacy by design, user-controlled credentials, and a rights-based framework capable of addressing the risks posed by artificial intelligence and large-scale data analytics. As digital identity regimes continue to evolve within complex technological ecosystems, there is a growing need for legal professionals to understand both their technical architecture and the legal safeguards required to ensure accountability, fundamental rights protection, and democratic governance.

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[1] Digital Identity and Authentication Council of Canada, The Economic Impact of Digital Identity in Canada: Understanding the Potential for Considerable Economic Benefits and the Cost of Inaction (Toronto: DIACC, 2016) at 20.

[2] Ibid at 19.

[3] Ibid.

[4] Digital ID and Authentication Council of Canada, Pan-Canadian Trust Framework: Overview (Toronto: DIACC, August 2016) at 8–9.

[5] Bill C-27, An Act to enact the Consumer Privacy Protection Act, the Personal Information and Data Protection Tribunal Act and the Artificial Intelligence and Data Act and to make consequential and related amendments to other Acts, 1st Sess, 44th Parl, 2022 (first reading 16 June 2022).

[6] Alain Dudoit & Tony Labillois, Digital Sovereignty and federalism: Data Interoperability and AI governance, (CIRANO, December 2025) (2025PR-12) online: <https://doi.org/10.54932/DNAN8237> at 9.

[7] Namir Anani & Erik Henningsmoen, A Roadmap for Canada’s Digital Economy to 2030 (Ottawa: Information and Communications Technology Council (ICTC), April 2025) at 14.

[8] Bill 82, An Act respecting the national digital identity and amending other provisions, 1st Sess, 43rd Leg, Québec, 2024 (introduced by Éric Caire, Minister of Cybersecurity and Digital Technology).

[9] Nicolas Lachance, “Éric Caire remise son important projet d’application mobile pour son identité numérique” Journal de Montréal (7 May 2024), online: <https://www.journaldemontreal.com/2024/05/07/eric-caire-remise-son-important-projet-dapplication-mobile-pour-son-identite-numerique>. 

[10] Bill 82, supra note 8 art 10.2.

[11] Ibid, art 10.2-10.10.

[12] Ibid, art 10.7.

[13] Ibid, art 20.

[14] Regulation (EU) 2024/1183 of the European Parliament and of the Council of 11 April 2024 amending Regulation (EU) No 910/2014 as regards establishing the European Digital Identity Framework, [2024] OJ L 2024/1183.

[15] “eIDAS 2.0 | Updates, Compliance”, European Digital Identity Regulation, online: <https://www.european-digital-identity-regulation.com/>.

[16] Innovation, Science and Economic Development Canada, Canada and the European Union to deepen their collaboration on artificial intelligence and digital credentials and trust services (8 December 2025), online: Government of Canada <https://www.canada.ca/en/innovation-science-economic-development/news/2025/12/canada-and-the-european-union-to-deepen-their-collaboration-on-artificial-intelligence-and-digital-credentials-and-trust-services.html>.

[17] Ibid.

[18] Rachel Hagan, “What is the plan for digital IDs and will they be mandatory?” BBC News (23 October 2025), online: <https://www.bbc.com/news/articles/clyl3lzzed2o>.

[19] UK Government, Digital ID scheme: explainer (London: Department for Science, Innovation & Technology, 26 September 2025), online: GOV.UK <https://www.gov.uk/government/publications/digital-id-scheme-explainer/digital-id-scheme-explainer>. 

[20] The Rt Hon Peter Kyle MP – UK Government, Pubgoers given choice to prove age with phones next year in boost for high street and hospitality sectors (London: Department for Science, Innovation & Technology, 21 December 2024), online: GOV.UK <https://www.gov.uk/government/news/pubgoers-given-choice-to-prove-age-with-phones-next-year-in-boost-for-high-street-and-hospitality-sectors>. 

[21] Ofcom, Age checks for online safety – what you need to know as a user (26 June 2025), online: <https://www.ofcom.org.uk/online-safety/protecting-children/age-checks-for-online-safety–what-you-need-to-know-as-a-user>. 

[22] Rowena Mason Whitehall, “Everything you need to know about NHS England’s biggest ever IT contract” The Guardian (21 November 2023), online: <https://www.theguardian.com/society/2023/oct/12/everything-you-need-to-know-about-nhs-englands-biggest-ever-it-contract>. 

[23] Fiona Brown, “Palantir UK boss rules out contract bids for digital ID over ‘undemocratic’ concern” The National (Scotland) (3 October 2025), online: <https://www.thenational.scot/news/25515531.palantir-uk-boss-rules-contract-bids-digital-id/>.

[24] Jean-Pierre Cabestan, “The State and Digital Society in China: Big Brother Xi Is Watching You!” in Ben Hillman & Jianwen Kou, eds, Political and Social Control in China: The Consolidation of Single-Party Rule (Canberra, ACT: ANU Press, 2024) at 164.

[25] Wan Li, “Data Privacy and China’s ‘Super App’ WeChat” (2024) 12:1 Penn State Journal of Law & International Affairs 70 at 71–73, online: <https://insight.dickinsonlaw.psu.edu/jlia/vol12/iss1/6>.

[26] Jean-Pierre Cabestan, supra note 24 at 169.

[27] Ibid at 170.

[28] Ibid at 173.

[29] John Liu, “China tightens internet controls with new centralized national internet ID system” CNN (20 June 2025), online: <https://www.cnn.com/2025/06/20/tech/china-censorship-internet-id-hnk-intl>.

[30] ERR, “Hacker downloads close to 300,000 personal ID photos” ERR News (28 July 2021), online: <https://news.err.ee/1608291072/hacker-downloads-close-to-300-000-personal-id-photos>.

[31] BBC, “Aadhaar: ‘Leak’ in world’s biggest database worries Indians” BBC News (5 January 2018), online: <https://www.bbc.com/news/world-asia-india-42575443>.

[32] Kean Birch, Personal Data Governance in the Big Tech Era :  What is Happening To Our Personal Data?, ITS Policy Briefing #01-2023 (Toronto: Institute for Technoscience & Society, 2023) at 8.

[33] Ibid.

[34] Deloitte LLP, Digital Poverty in the UK: A Socio-Economic Assessment of the Implications of Digital Poverty in the UK, prepared for the Learning Foundation (London: Deloitte LLP, September 2023) at 12-14.

[35] Ibid at 23.