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signer/core: always pad clique header extra data with space for sealer's signature (#24941)

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* signer/core: always pad clique header extra data with space for sealer's signature

* capitalize comment
This commit is contained in:
jwasinger 2022-05-23 22:18:03 -10:00 committed by GitHub
parent 94c8de0217
commit 3ff479bc94
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 5 additions and 7 deletions
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12
signer/core/signed_data.go
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@ -147,13 +147,11 @@ func (api *SignerAPI) determineSignatureFormat(ctx context.Context, contentType
if err := rlp.DecodeBytes(cliqueData, header); err != nil {
return nil, useEthereumV, err
}
// The incoming clique header is already truncated, sent to us with a extradata already shortened
if len(header.Extra) < 65 {
// Need to add it back, to get a suitable length for hashing
newExtra := make([]byte, len(header.Extra)+65)
copy(newExtra, header.Extra)
header.Extra = newExtra
}
// Add space in the extradata to put the signature
newExtra := make([]byte, len(header.Extra)+65)
copy(newExtra, header.Extra)
header.Extra = newExtra
// Get back the rlp data, encoded by us
sighash, cliqueRlp, err := cliqueHeaderHashAndRlp(header)
if err != nil {