Digital Identity

41. Digital Identity (Aadhaar 2.0): Decentralized Identifiers and Zero-Knowledge Proofs

Aria Kenangan Aria Kenangan
📅 June 20, 2026
⏱️ 5 min read
🏷️ Policy, Infrastructure
Aadhaar Decentralized Identity

Structural Mechanics

The Unique Identification Authority of India (UIDAI) is modernizing Aadhaar to address privacy concerns. This "Aadhaar 2.0" evolution incorporates Decentralized Identifiers (DIDs) and Zero-Knowledge Proofs (ZKPs). By utilizing ZK-cryptography, users can verify their age, residency, or citizenship status to third-party applications programmatically without revealing their actual date of birth, biometric details, or base identification numbers.

Data-Driven Metrics

  • Transaction Safety: ZKP-based verification eliminates the risk of identity harvesting, as third-party verifiers never store or view raw identity data.
  • Computational Footprint: Modern ZK-proof generation algorithms can run directly on consumer smartphones, generating secure cryptographic proofs in under 2 seconds.
  • Adoption Horizon: Sandbox testing is underway across digital banking, e-governance portals, and age-restricted online platforms.

Strategic Vector

UIDAI should publish standardized open-source ZK-Aadhaar APIs to allow private developers to implement privacy-preserving user verification in their applications.