Ethereum Foundation’s Clear Signing Standard Aims to End Blind Signing Risk on Ethereum

In crypto security, the weakest link is often not cryptography — it’s approval. For years, many Ethereum users have been asked to confirm transactions that appear as unreadable calldata, generic warnings, or opaque message prompts. This pattern is widely known as Blind Signing: authorizing something you cannot meaningfully verify on the signing screen.

To address this systemic UX security gap, the Ethereum ecosystem has rallied around Clear Signing — an open approach designed to make What You See Is What You Sign (WYSIWYS) the default. The initiative is stewarded under the Ethereum Foundation’s Trillion Dollar Security (1TS) effort, which explicitly calls out blind signing and transaction uncertainty as a critical adoption blocker for the next phase of Ethereum’s growth. You can read more about 1TS on the Ethereum Foundation’s blog announcement of the initiative and the broader security workstream on the official Trillion Dollar Security hub: Trillion Dollar Security initiative announcement and Security Challenges Overview.

Why “Blind Signing” Became a Top-Tier Risk in 2025–2026

Ethereum transactions are no longer just “send ETH.” Today’s signing requests routinely include:

• DeFi approvals with complex parameters (including unlimited allowances)
• Multisig operations and contract-based account actions
• Cross-chain and L2 flows where outcomes may be non-obvious at signing time
• EIP-712 typed-data messages that can encode powerful permissions

Attackers have adapted accordingly. Many high-impact incidents have a familiar shape: a user (or operator) approves something that looks benign in a web UI, but the actual payload being signed authorizes something else.

A widely discussed example is the Bybit incident, where analyses highlight how a signer can be misled when the signing experience does not reliably communicate what is actually being authorized. For a technical walkthrough of how these UI and signing mismatches can translate into catastrophic outcomes, see NCC Group’s technical analysis.

The key lesson is straightforward: a wallet prompt that cannot be read cannot be audited by a human, and that makes social engineering dramatically cheaper than breaking cryptography.

Clear Signing: A Display Layer Built for Human Verification

Clear Signing does not change Ethereum’s transaction semantics. Instead, it adds a standardized, verifiable interpretation layer so wallets can render:

• A structured action label (e.g., “Swap”, “Stake”, “Revoke allowance”)
• Human-readable amounts with correct decimals and token metadata
• Clear counterparty / recipient information
• Context that helps users recognize the protocol and intent

The Clear Signing effort is documented publicly at Clear Signing: See what you sign, with a practical overview of the problem and approach at From raw calldata to readable intent.

The Core Building Block: ERC-7730 Descriptors

At the center of the standardization push is ERC-7730, a structured format that lets protocols (and other contributors) define how specific contract interactions or message types should be displayed to a signer.

In plain terms, ERC-7730 turns raw bytes into a consistent transaction “explanation template.” Wallets can then apply that template at signing time to render a confirmation screen that users can actually reason about.

You can review the specification here: ERC-7730: Structured Data Clear Signing Format. Notably, ERC-7730 is designed to work across modern Ethereum patterns, including typed-data signing flows (see EIP-712) and account abstraction user operations (see EIP-4337) as referenced in the ERC-7730 spec.

Open Submission, Independent Review, Wallet-Local Trust

A global descriptor system introduces an obvious question: what if someone submits misleading metadata?

Clear Signing addresses this by separating publication from trust:

1. Descriptors can be authored and submitted openly (so coverage can scale beyond a small whitelist).
2. Independent review signals can be layered on top via attestations.
3. Wallets remain sovereign: each wallet chooses which sources and review signals it trusts, and how to behave when metadata is missing or untrusted.

This design is emphasized in the project’s governance model: Clear Signing governance principles.

On the implementation side, the ecosystem is also standardizing how integrity / verification metadata can be attached to descriptors, so wallets can make better trust decisions without centralizing control. One example is the integrity verification discussion around ERC-7730 descriptors: ERC-8176 integrity verification discussion.

Why “Metadata Separate from the Transaction” Matters

A subtle but important architectural choice is that Clear Signing metadata (descriptors, attestations, registry entries) is separate from the transaction itself.

That separation has two major benefits:

• Backward compatibility: existing contracts and dApps can gain clear signing support without redeploying.
• Future resilience: as Ethereum UX evolves (account abstraction, batch calls, new signature types), the display layer can evolve without breaking transaction validity.

This “add a verifiable display layer” framing is central to the approach described in the Clear Signing overview: Clear Signing architecture overview.

What This Changes for Everyday Users

Clear Signing is not a magic shield — but it meaningfully raises the cost of many common attacks by reducing ambiguity at the exact moment approval happens.

As adoption grows, users should expect a healthier default workflow:

• If a transaction is well-described and independently reviewed, wallets can show a clear, structured intent screen.
• If metadata is missing or untrusted, wallets can present explicit warnings and safer fallbacks (instead of silently training users to click through unreadable prompts).

In the meantime, user-side best practices still matter:

• Treat any unreadable signing request as high risk, especially approvals and signature requests
• Prefer workflows where the signing device shows meaningful details (amounts, recipients, actions)
• Regularly review and revoke token allowances when they’re no longer needed

What Builders Should Do Next (dApps, Protocols, and Wallet Teams)

If you build on Ethereum, Clear Signing is becoming part of the security baseline — similar to how verified contracts, audits, and safe allowance design became expected over time.

Practical steps:

• Protocols / dApps: publish ERC-7730 descriptors for core contracts and high-volume flows, and keep them updated as contracts evolve (especially proxy upgrades).
• Security teams: treat descriptors as security artifacts — they can prevent loss, but incorrect descriptors can also mislead users.
• Wallet teams: implement ERC-7730 consumption plus a clear trust policy for registries and attestations.

The Clear Signing site includes a concrete submission and implementation path here: Implement ERC-7730 (Build guide).

Where OneKey Fits in the “See What You Sign” Future

Clear Signing aligns with what hardware wallets are meant to provide: a trusted signing environment where the user can verify intent before authorizing irreversible actions.

As open standards like ERC-7730 mature, wallets can converge on a more consistent, safer signing UX across the ecosystem — reducing the number of situations where users are pushed into blind signing just to “make the transaction go through.”

If your threat model includes phishing, front-end compromise, or high-value DeFi activity, using a hardware wallet such as OneKey — and prioritizing flows that provide human-readable, structured confirmations — is a practical step toward safer onchain operations.