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docs/lib/utils/ECDSA.md

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+# Solidity API
+
+## ECDSA
+
+Gas optimized ECDSA wrapper.
+
+### InvalidSignature
+
+```solidity
+error InvalidSignature()
+```
+
+_The signature is invalid._
+
+### recoverCalldata
+
+```solidity
+function recoverCalldata(bytes32 hash, bytes signature) internal view returns (address result)
+```
+
+_Recovers the signer's address from a message digest `hash`,
+and the `signature`.
+
+This function does NOT accept EIP-2098 short form signatures.
+Use `recover(bytes32 hash, bytes32 r, bytes32 vs)` for EIP-2098
+short form signatures instead._
+
+### toEthSignedMessageHash
+
+```solidity
+function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 result)
+```
+
+_Returns an Ethereum Signed Message, created from a `hash`.
+This produces a hash corresponding to the one signed with the
+[`eth_sign`](https://eth.wiki/json-rpc/API#eth_sign)
+JSON-RPC method as part of EIP-191._
+