Encyclopedia DeFi · Entry 47
Connecting a wallet: account access, signatures and approvals
In this article
At a glance
Key facts
| Fact | Detail | Source |
|---|---|---|
| Account access | Wallet account exposure is an explicit permission boundary. | [1] |
| Allowance | ERC-20 spending permission belongs to a token contract and spender. | [2] |
| Signature | ERC-2612 permits authorize allowances using signed messages. | [3] |
Connection exposes an account interface
An application asks the wallet for accounts and the selected network, then uses a provider to request reads, signatures or transactions. EIP-1193 distinguishes connectivity to a chain from account authorization. A connected provider can still have no account permission.
An address lets an application inspect public chain activity and associate that activity with the session. Connection does not require sending a recovery phrase to a website. The wallet remains the component that manages keys and signing. Use Follow a Transaction to separate signing from submission, inclusion and finality.
A spending approval is a separate operation
Suppose a swap interface asks permission for a router to spend 50 token units. The ERC-20 allowance records that spender and amount on the token contract; a later transferFrom can use it. Granting permission and performing the swap are distinct state changes even when an interface groups them.
ERC-2612 permits let a signed message create an allowance when submitted on-chain. The message binds fields including spender, amount, deadline and nonce. A gas-free signature is therefore not necessarily a harmless login message.
Disconnecting does not erase on-chain authority
Removing a website’s connection permission changes its wallet access. It does not send an ERC-20 approval transaction and does not by itself set an existing allowance to zero. The token contract’s state persists independently of the browser session.
When examining a request, distinguish the account being exposed, chain, token, spender, quantity and operation. A transaction simulation can clarify proposed changes, but interpreting a signed authorization also requires its scope and validity conditions.
Direct answers
Questions people ask
Does a connection give the website my private key?
The provider interface is designed to pass requests to the wallet, which manages private keys separately. Account access does not itself reveal the key or authorize every future transaction.
Can a signature move tokens later?
Yes. A valid permit can be submitted later to set an allowance, subject to its deadline and nonce. The resulting spender authorization is separate from an ordinary site connection.
Inspect the evidence
The answer and key facts have stable claim links. These records retain the scope and qualification when reused.
Connecting a wallet usually lets an application request access to selected account addresses and communicate with the wallet. That connection alone is different from granting a token allowance or signing a transaction. A signature can itself authorize spending, so its meaning matters even when no gas fee is shown.
Scope: DeFi. Verification: verified · 2026-10-02T15:08:18.373Z.
Link to this claimAccount access: Wallet account exposure is an explicit permission boundary.
Scope: DeFi. Verification: verified · 2026-10-02T15:08:18.373Z.
Link to this claimAllowance: ERC-20 spending permission belongs to a token contract and spender.
Scope: DeFi. Verification: verified · 2026-10-02T15:08:18.373Z.
Link to this claimSignature: ERC-2612 permits authorize allowances using signed messages.
Scope: DeFi. Verification: verified · 2026-10-02T15:08:18.373Z.
Link to this claimRevision history
- — First publication after primary-source research and independent automated verification.
- — Before first publication, independent review checked and revised: sections, prerequisites. Compared EIP-1193 account exposure and provider connectivity with ERC-20 approve/allowance/transferFrom and ERC-2612 permit fields. Connection, allowance and signature authority remain separate; disconnection does not mutate token allowance. Checked signed permit deadline/nonce/domain scope and the private-key boundary. Added coherent Ethereum prerequisites and the existing transaction tool link.
Source register
Sources and references
Retrieval dates and locators are recorded individually.- EIP-1193: Ethereum Provider JavaScript APIEthereum Improvement Proposals
Account access, chain selection, RPC requests and provider connectivity.
Locator: Connectivity; User Account Exposure and Account Changes · Version / scope: EIP-1193 final · Retrieved: 2026-10-02Open source - ERC-20: Token StandardEthereum Improvement Proposals
The token spending allowance is separate from a website connection.
Locator: Methods: approve, allowance, transferFrom · Version / scope: ERC-20 final · Retrieved: 2026-10-02Open source - ERC-2612: Permit ExtensionEthereum Improvement Proposals
Signed approvals have spender, amount, nonce, deadline and domain semantics.
Locator: Specification; Security Considerations · Version / scope: ERC-2612 final · Retrieved: 2026-10-02Open source
Research and drafting use AI assistance. A separate automated review checks claims against primary sources; no external expert or named human review is implied. Publication, substantive editing, source retrieval and verification are recorded separately. This version was independently checked by an automated reviewer on 2 October 2026.
Editorial method and correctionsDegrees of Satoshi editorial project. “Connecting a wallet: account access, signatures and approvals.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/connecting-a-wallet/