Allow return data length >= 32 in SignatureChecker (#4038)

Co-authored-by: Francisco Giordano <fg@frang.io>
2023-02-24 20:35:46 +05:30
parent d5581531de
commit b4d765b130
2 changed files with 6 additions and 1 deletions
--- a/.changeset/warm-masks-obey.md
+++ b/.changeset/warm-masks-obey.md
@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`SignatureChecker`: Allow return data length greater than 32 from EIP-1271 signers.
--- a/contracts/utils/cryptography/SignatureChecker.sol
+++ b/contracts/utils/cryptography/SignatureChecker.sol
@ -44,7 +44,7 @@ library SignatureChecker {
            abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)
        );
        return (success &&
-            result.length == 32 &&
+            result.length >= 32 &&
            abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector));
    }
 }