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ante: EIP712 support (#950)

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* code migrated

* signed_data ported to avoid conficting dependency

* correct payload

* eip712 working with evmos.me

* use geth TypedData types

* fix linter

* minor refactor

* test first try

* fix test

* fix tests

* enforce fee delegated eip712

* verify signature refactor

* SignedTypedData api refactor

* add AnteHandler test for EIP712

* remove comment

* code clean up

* return more detailed error messages

* fix linter

* remove unnecesary global vars

* Update app/ante/eip712.go

Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>

* fix pr comments

* remove hardcoded value

* add more tests

* add changelog

* use sdk errors

* add MsgDelegate test

Co-authored-by: Freddy Caceres <freddy.caceres@crypto.com>
Co-authored-by: Federico Kunze Küllmer <federico.kunze94@gmail.com>
Co-authored-by: Federico Kunze Küllmer <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: crypto-facs <84574577+crypto-facs@users.noreply.github.com>
This commit is contained in:
Guillermo Paoletti
2022-02-26 16:34:43 +00:00
committed by GitHub
co-authored by Federico Kunze Küllmer Freddy Caceres Federico Kunze Küllmer crypto-facs
parent 0d69a69625
commit 3bea3fa1ef
10 changed files with 965 additions and 50 deletions
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rpc/ethereum/namespaces/eth/api.go
+3 -8
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@@ -7,6 +7,8 @@ import (
"math"
"math/big"
"github.com/tharsis/ethermint/ethereum/eip712"
"github.com/ethereum/go-ethereum/signer/core/apitypes"
"github.com/ethereum/go-ethereum/core/vm"
@@ -446,18 +448,11 @@ func (e *PublicAPI) SignTypedData(address common.Address, typedData apitypes.Typ
return nil, fmt.Errorf("%s; %s", keystore.ErrNoMatch, err.Error())
}
domainSeparator, err := typedData.HashStruct("EIP712Domain", typedData.Domain.Map())
sigHash, err := eip712.ComputeTypedDataHash(typedData)
if err != nil {
return nil, err
}
typedDataHash, err := typedData.HashStruct(typedData.PrimaryType, typedData.Message)
if err != nil {
return nil, err
}
rawData := []byte(fmt.Sprintf("\x19\x01%s%s", string(domainSeparator), string(typedDataHash)))
sigHash := crypto.Keccak256(rawData)
// Sign the requested hash with the wallet
signature, _, err := e.clientCtx.Keyring.SignByAddress(from, sigHash)
if err != nil {