Blockchain-based digital identity for government agencies
Sector: Tertiary sector · Industry: Public infrastructure and utilities · Organisation: Department of Homeland Security (DHS) · Maturity level: Concept
Government agencies are exploring the use of blockchain technology to digitize identification documents and credentials. The technology aims to create tamper-proof, decentralized identity solutions that enable cryptographic verification without central storage. The market for decentralized identities is estimated to reach $103.3 billion by 2035.
Documentation status
- Project status: Concept
- Evidence: Evidence high
- Editorial review: Ufuk Avci, 15 April 2026
Description
Digital, blockchain-based IDs and identity documents are among the fastest-growing blockchain use cases. The core concept is Self-Sovereign Identity (SSI): instead of storing data centrally with the state or corporations, citizens control their identity data in a digital wallet.
The EU has established the legal basis with the eIDAS Regulation 2.0 (2024): all EU member states must offer an EU Digital Identity Wallet by the end of 2026. The wallet is based on W3C DID standards and Verifiable Credentials — technologies compatible with blockchain. EBSI (European Blockchain Services Infrastructure) is the EU's technical infrastructure for cross-border blockchain-based digital identities. In the USA: the TSA accepts Mobile Driver's Licences (mDLs) from participating states at security checkpoints. 84% of end users use physical and mobile credentials in parallel (market research data). Selective Disclosure is a key advantage: instead of showing the entire passport, one only proves being over 18 — without revealing date of birth, address or other data. DID market: 81.2% annual growth until 2035 to USD 103.3 billion (market research).
Perspectives
B2B — organisations perspective
Authorities and companies can accelerate KYC processes through SSI-based identity systems: once verified identities are recognised within the network without re-verification.
B2C — consumers perspective
Citizens gain full control over their identity data: only selectively shared attributes, no central identity silo, tamper-proof digital IDs for authorities, medical practices and companies.
Employees perspective
Administrative staff benefit from automated verification processes that make manual document checks unnecessary. At the same time, they must familiarise themselves with new digital tools and blockchain technologies, requiring training and further education.
Benefits
General
- The technology offers increased security through cryptographic encryption and significantly reduces the risk of document forgery.
- Decentralised storage eliminates single points of failure and makes the system more resilient to cyberattacks.
- Users gain full control over their identity data and can decide which information to share.
B2B — organisations
- Authorities and companies can reduce their administrative costs by up to 20 percent through automated verification processes.
B2C — consumers
- Citizens no longer need physical documents and have their identity proofs digitally available at all times.
Employees
- Administrative staff can carry out verification processes up to 50 percent faster and focus on more complex tasks.
Challenges
General
- Interoperability with existing systems requires extensive technical integration and can incur high implementation costs.
- Acceptance by users and authorities is crucial for success, as 84 percent of people still use physical documents in parallel.
B2B — organisations
- Authorities must make significant investments in new IT infrastructure and staff training.
Employees
- Administrative staff must familiarise themselves with complex blockchain technologies and learn new workflows.
Technology foundation
Blockchain-based digital identities use decentralized databases to cryptographically encrypt and distribute identity data. The technology allows users to control their identity keys themselves and share them with verifiers without a central authority needing to store the data.
Tags
Digital identity, Decentralisation, Cryptography, Authorities, Data protection
Sources
- Mobile credentials reach critical mass with 84% of end users still using physical credentials alongside mobile versions
- TSA accepts mobile driver's licenses from participating states at checkpoints
- EU member states to offer EU Digital Identity Wallet with regulated security levels by end of 2026
- DID industry projected annual growth of 81.2% until 2035 to $103.3 billion
- DHS S&T: S&T Invests in Innovative Blockchain/DLT Technologies (Fokus: Preventing Forgery and Counterfeiting of Certificates and Licenses)
- DHS SBIR Success Story: Digital Identity Protection (Digital Bazaar, blockchain-basierte Credentials und Wallets)