PROTOCOL OVERVIEW

How QShield
works.

Five layers of quantum security between your agent and the blockchain. Every transaction scanned, scored, and secured in under 10 milliseconds.

01

Transaction Interception

Every agent transaction passes through QShield before hitting the Solana network. The interception layer sits between the agent's signing process and the RPC broadcast, adding zero friction to safe transactions.

LATENCY<10ms
THROUGHPUT50K tx/s
COVERAGE100%
02

Signature Analysis

QShield identifies the cryptographic signature scheme used in each transaction. ECDSA-based signatures are flagged as quantum-vulnerable. Post-quantum schemes like ML-DSA and SLH-DSA are approved automatically.

SCHEMESECDSA, EdDSA, ML-DSA, SLH-DSA
DETECTION99.97% accuracy
FALSE POSITIVE<0.01%
03

Key Exposure Monitoring

Continuous on-chain monitoring tracks public key exposure. Keys that have been used to sign multiple transactions have higher exposure scores. QShield alerts agents before their keys reach critical exposure thresholds.

MONITORINGReal-time
HISTORYFull chain
ALERTSWebhook + SDK
04

Risk Scoring Engine

Multi-factor quantum risk score from 0 (safe) to 1 (critical). Factors include signature scheme, key exposure, address reuse, scope breadth, and agent age. The score determines whether a transaction is broadcast or blocked.

FACTORS5 weighted inputs
MODELQuantumRisk v1.0
UPDATEEvery block
05

Migration Pathways

When a vulnerable key is detected, QShield provides automated migration pathways. Agents can migrate assets to fresh keypairs with zero downtime using the SDK's migrate() method.

TARGETML-DSA (NIST)
DOWNTIMEZero
ROLLBACKSupported
ARCHITECTURE
AGENTQSHIELD SDKSCAN ENGINERISK SCORERSOLANA RPC