Quantum Security Audit
2026 cryptographic security analysis of NEAR Protocol (NEAR) against quantum computing threats
NEAR Protocol uses Ed25519 for account access keys, making it vulnerable to Shor's algorithm. NEAR's ambitious chain abstraction vision — allowing users to interact with multiple blockchains from a single NEAR account — actually expands the quantum attack surface, as compromising a NEAR account could grant access to assets across multiple chains.
| Property | Value |
|---|---|
| Algorithm | Ed25519 (EdDSA) |
| Type | Twisted Edwards Curve (Curve25519) |
| Quantum Rating | D — Vulnerable |
Vulnerability: Standard Ed25519 vulnerability to Shor's algorithm.
Timeline: 2030-2033. NEAR's chain abstraction vision relies on cryptographic security across multiple chains.
Team Response: NEAR Foundation has focused on chain abstraction, AI integration, and user onboarding rather than quantum resistance. No PQC roadmap has been published.
NEAR's access key model is unique: accounts can have multiple keys with different permission levels (full access vs. function-call-only). While this provides operational flexibility, full access keys remain Ed25519 and their compromise grants total account control. NEAR's chain signatures feature uses MPC (Multi-Party Computation) threshold cryptography to sign transactions on other chains from NEAR accounts — but the underlying MPC protocol uses elliptic curve math that is quantum-vulnerable. Nightshade sharding distributes state across chunk producers, each authenticating with Ed25519. The NEAR Foundation's strategic focus on AI and chain abstraction has left quantum resistance unaddressed.
NEAR's human-readable named accounts (alice.near) expose Ed25519 access keys. Full access keys control all account actions.
NEAR's chain signatures feature uses MPC threshold signatures across validators — still based on elliptic curves.
Nightshade sharding relies on validator Ed25519 keys. Compromised chunk producers could create invalid state transitions.
While NEAR Protocol relies on Twisted Edwards Curve (Curve25519) (quantum-vulnerable), BMIC is built from the ground up with NIST-standard post-quantum cryptography:
BMIC doesn't wait for NEAR Protocol to upgrade. It protects your assets with the same cryptographic standards the U.S. government uses for classified communications — available today, not years from now.
Join BMIC PresaleNo. NEAR uses Ed25519 for account access keys, which is vulnerable to Shor's algorithm. No post-quantum roadmap has been published.
Yes. Chain signatures use MPC threshold cryptography based on elliptic curves, which are quantum-vulnerable.
NEAR's multi-key model allows key rotation, but all keys use Ed25519. Rotating to a new quantum-vulnerable key doesn't improve quantum security.
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