Vietnam deploys national blockchain for identity and records

July 25, 2025, the Vietnamese government officially launched NDAChain, a state-operated blockchain platform aimed at securing digital identities, transactions, and records across its digital ecosystem.

Vietnam’s New Blockchain Infrastructure

Vietnam’s National Data Association (NDA), in collaboration with the Ministry of Public Security, unveiled NDAChain, a permissioned layer-1 blockchain designed to verify digital records, secure national data, and support digital identity infrastructure. The state emphasized that this network would help overcome key issues in centralized data systems, including vulnerability to cyberattacks, low scalability, and limited international compatibility.

The network will serve as the digital backbone for government services, logistics, finance, healthcare, and education systems.

Hybrid Architecture with Trusted Validators

NDAChain is built on a hybrid model combining centralized oversight with decentralized features. According to NDA tech lead Nguyen Huy, the blockchain is not fully decentralized but rather includes “a protective layer for the nation’s live data.”

The platform is run on Proof-of-Authority (PoA) consensus and features 49 validator nodes operated by a mix of state agencies and private sector giants. These include:

• Ministry of Public Security
• National Data Association (NDA)
• SunGroup
• Zalo
• Masan
• MISA
• Sovico
• VNVC

The validators share a distributed ledger for storing transaction data and smart contracts, and will also support identity modules.

Decentralized Identity and NDAKey

NDAChain also supports NDA DID, a decentralized identity layer allowing secure authentication during digital transactions. The solution facilitates instant counterparty verification and legal digital contract signing.

A new app called NDAKey will enable users to verify their identity in seconds using zero-knowledge proof technology, aiming to curb identity theft and digital scams. This system ties directly into Vietnam’s national identity databases, adding another layer of citizen data protection.