It is critical to begin planning for replacement of hardware, software, and services that use public-key algorithms now.
NIST
On ECC for encryption and digital signatures
Quantum-ready multisig and wallet infrastructure
The first step toward quantum readiness for Solana |.
Quorum lets classical and quantum-resistant signers coexist in the same Solana multisig. Require post-quantum approval from day one, or migrate gradually from today’s signing schemes without changing your multisig address.
A one-in-seven chance that some fundamental public-key cryptography tools will be broken by 2026. 50% chance by 2031.
Michele Mosca
Professor, University of Waterloo & CEO, evolutionQ
There's a 50/50 chance quantum computers will be powerful enough within five years to break the cryptographic protections. We should migrate to a quantum-resistant signature scheme.
Anatoly Yakovenko
2025, on the need for upgrades by ~2030
Elliptic curves are going to die sooner than many assume — possibly before 2028.
Vitalik Buterin
On elliptic-curve risk timelines
Working independently, both Anza and Firedancer arrived at the same conclusion: the need for a post-quantum digital signature scheme with compact signatures.
Solana Foundation
On compact post-quantum signatures for Solana
Cryptographically relevant quantum computers are likely still several years away, but Solana should not wait for Q-day to begin preparing.
Anza
On beginning Solana quantum-readiness work before Q-day
The key is to be on this journey today and not wait until the last minute.
Rob Joyce
Director of NSA Cybersecurity
It is critical to begin planning for replacement of hardware, software, and services that use public-key algorithms now.
NIST
On ECC for encryption and digital signatures
A one-in-seven chance that some fundamental public-key cryptography tools will be broken by 2026. 50% chance by 2031.
Michele Mosca
Professor, University of Waterloo & CEO, evolutionQ
There's a 50/50 chance quantum computers will be powerful enough within five years to break the cryptographic protections. We should migrate to a quantum-resistant signature scheme.
Anatoly Yakovenko
2025, on the need for upgrades by ~2030
Elliptic curves are going to die sooner than many assume — possibly before 2028.
Vitalik Buterin
On elliptic-curve risk timelines
Working independently, both Anza and Firedancer arrived at the same conclusion: the need for a post-quantum digital signature scheme with compact signatures.
Solana Foundation
On compact post-quantum signatures for Solana
Cryptographically relevant quantum computers are likely still several years away, but Solana should not wait for Q-day to begin preparing.
Anza
On beginning Solana quantum-readiness work before Q-day
The key is to be on this journey today and not wait until the last minute.
Rob Joyce
Director of NSA Cybersecurity
The quantum threat
Quantum computing will break today's blockchain signatures. The question is when.
Solana accounts, multisigs, and signed transactions rely on elliptic-curve cryptography. A sufficiently capable quantum computer can derive a private key from an exposed public key, breaking that security model entirely.
Your path to quantum readiness
Go post-quantum today, or migrate in stages.
Quorum supports both paths. Teams ready to adopt post-quantum signing can create multisigs that require Falcon or Winternitz approval from day one. Teams that need continuity can begin with existing Ed25519 or Secp256k1 signers, add post-quantum members when ready, and increase post-quantum approval requirements over time without changing the multisig address.
01 · Stable vault address
Create a quantum-enabled multisig
Create a Quorum multisig with today’s signers, post-quantum signers, or both. The multisig address is stable from the beginning, so future signer changes do not require moving assets or updating authority references.
Continuity
02 · Mixed member set
Add Falcon or Winternitz members
Add post-quantum members immediately, or when operationally ready. Falcon-512 gives a compact NIST-selected lattice path aligned with Solana’s direction of travel. Winternitz gives a conservative hash-based path for teams that want a different security assumption.
Smooth Transition
03 · Threshold plus PQ requirement
Require post-quantum approval
In addition to the core approval threshold, Quorum can require a minimum number of post-quantum approvals. For example, a 3-of-5 multisig can require 3 approvals total, including at least 1 Falcon or Winternitz approval.
Gradual Resilience
04 · Authority rotation
Rotate authority over time
As the quantum threat heightens, rotate classical approvers into lower-trust roles, or out of the approval path entirely. Existing assets, vault addresses, proposal history, and governance references remain continuous.
Full Quantum Readiness
Signing scheme comparison
Choose the signing schemes that fit your model and risk assumptions.
Post-quantum and classic signers coexist in the same multisig.
Quorum supports classical and post-quantum signing schemes in the same multisig. Each scheme has different compatibility, security assumptions, compute costs, signature sizes, and operational trade-offs.
Complete multisig platform
Enterprise-grade multisig, built for post-quantum operations.
Flows and features to serve a range of use-cases
Quorum includes the workflows teams already expect from a serious multisig platform: proposals, voting, execution, member rotation, permissions, asset management, time-locks, and on-chain auditability. The difference is that these workflows work across classical and post-quantum signers.
01
proposal
Propose, vote, execute
Create treasury transfers, program actions, and settings changes as governed proposals. Members approve with Ed25519, Secp256k1, Falcon-512, or Winternitz signatures.
02
members
Classical and post-quantum members
Add all supported member types to the same multisig. Rotate identities without changing the multisig address.
03
pq approval
Require PQ approval
Set a standard threshold and require one or more post-quantum approvals for sensitive actions.
04
rotation
Rotate signers without moving assets
Upgrade members from classical to post-quantum identities over time while keeping the same vault address and proposal history.
05
timelock
Time-lock high-value actions
Add a delay between approval and execution for treasury movements, upgrades, and admin actions.
06
audit
Every action leaves a trail
Votes, settings changes, and executions are recorded on-chain for review, reporting, and incident response.
07
assets
Manage SOL and SPL assets
View balances, propose transfers, and govern treasury operations from the same multisig surface.
08
roles
Separate approval from operation
Assign members roles such as proposer, voter, executor, or settings authority.
quorum
quantum ready wallet
Unlock
Multi-scheme wallet
Sign with separate classical and post-quantum wallets from one browser plugin.
One mnemonic. Multiple signer identities.
The Quorum wallet supports the signer types needed for mixed classical and post-quantum multisigs. It lets users switch between Solana, EVM, Falcon, and Winternitz wallets, create post-quantum wallets on-chain, and approve Quorum proposals without leaving the browser.
Today
Quorum multisig signing
Approve proposal and settings actions from the browser plugin.
Separate wallet types
Solana, EVM, Falcon, and Winternitz wallets from one seed.
PQ wallet creation flows
Generate and create Falcon and Winternitz wallets on-chain for devnet testing.
Separated derivation branches
One seed can derive supported wallet types through domain-separated branches.
Roadmap
Any Solana dApp to Quorum
Propose arbitrary dApp transactions to a Quorum multisig.
Solo Falcon and Winternitz flows
Use post-quantum accounts outside multisig approval flows.
Hardware wallet support
Support hardware-backed approval paths as firmware support matures.
Embedded wallet SDK
App-native signing experiences using the same wallet core.
Integration ready
For developers and backends.
Use Quorum through TypeScript and Rust SDKs, canonical signing preimages, registered signer identities, and programmatic transaction builders.
Docs
App devnet quickstart
Create a multisig, register signers, propose, vote, and execute.
Docs
Wallet overview
Manage Quorum identities, recovery, registration, and signing.
Docs
Supported signing schemes
Compare Ed25519, Secp256k1, Falcon-512, and Winternitz.
Docs
Key derivation and security
Understand separate derivation branches and root mnemonic risk.
create-multisig.ts
TypeScript SDKPQ thresholdDevnet
01News and research
Read more on post-quantum readiness and cryptography.
Go deeper on the threat timeline, migration paths, Solana decisions, and the signing schemes behind Quorum.
FAQ
Frequently asked questions.
Keep the short answers honest: Quorum is quantum-ready infrastructure, not a promise that every key or chain is already quantum-proof.
Get started
Start buildingquantum readinesstoday.
Try Quorum on devnet, read the docs, and test post-quantum signing flows before mainnet readiness.