signer, clef: implement EIP191/712 (#17789)

* Named functions and defined a basic EIP191 content type list

* Written basic content type functions

* Added ecRecover method in the clef api

* Updated the extapi changelog and addded indications in the README

* Changed the version of the external API

* Added tests for 0x45

* Implementing UnmarshalJSON() for TypedData

* Working on TypedData

* Solved the auditlog issue

* Changed method to signTypedData

* Changed mimes and implemented the 'encodeType' function for EIP-712

* Polished docstrings, ran goimports and swapped fmt.Errorf with errors.New where possible

* Drafted recursive encodeData

* Ran goimports and gofmt

* Drafted first version of EIP-712, including tests

* Temporarily switched to using common.Address in tests

* Drafted text/validator and and rewritten []byte as hexutil.Bytes

* Solved stringified address encoding issue

* Changed the property type required by signData from bytes to interface{}

* Fixed bugs in 'data/typed' signs

* Brought legal warning back after temporarily disabling it for development

* Added example RPC calls for account_signData and account_signTypedData

* Named functions and defined a basic EIP191 content type list

* Written basic content type functions

* Added ecRecover method in the clef api

* Updated the extapi changelog and addded indications in the README

* Added tests for 0x45

* Implementing UnmarshalJSON() for TypedData

* Working on TypedData

* Solved the auditlog issue

* Changed method to signTypedData

* Changed mimes and implemented the 'encodeType' function for EIP-712

* Polished docstrings, ran goimports and swapped fmt.Errorf with errors.New where possible

* Drafted recursive encodeData

* Ran goimports and gofmt

* Drafted first version of EIP-712, including tests

* Temporarily switched to using common.Address in tests

* Drafted text/validator and and rewritten []byte as hexutil.Bytes

* Solved stringified address encoding issue

* Changed the property type required by signData from bytes to interface{}

* Fixed bugs in 'data/typed' signs

* Brought legal warning back after temporarily disabling it for development

* Added example RPC calls for account_signData and account_signTypedData

* Polished and fixed PR

* Polished and fixed PR

* Solved malformed data panics and also wrote tests

* Solved malformed data panics and also wrote tests

* Added alphabetical sorting to type dependencies

* Added alphabetical sorting to type dependencies

* Added pretty print to data/typed UI

* Added pretty print to data/typed UI

* signer: more tests for typed data

* signer: more tests for typed data

* Fixed TestMalformedData4 errors and renamed IsValid to Validate

* Fixed TestMalformedData4 errors and renamed IsValid to Validate

* Fixed more new failing tests and deanonymised some functions

* Fixed more new failing tests and deanonymised some functions

* Added types to EIP712 output in cliui

* Added types to EIP712 output in cliui

* Fixed regexp issues

* Fixed regexp issues

* Added pseudo-failing test

* Added pseudo-failing test

* Fixed false positive test

* Fixed false positive test

* Added PrettyPrint method

* Added PrettyPrint method

* signer: refactor formatting and UI

* signer: make ui use new message format for signing

* Fixed breaking changes

* Fixed rules_test failing test

* Added extra regexp for reference types

* signer: more hard types

* Fixed failing test, formatted files

* signer: use golang/x keccak

* Fixed goimports error

* clef, signer: address some review concerns

* Implemented latest recommendations

* Fixed comments and uintint256 issue

* accounts, signer: fix mimetypes, add interface to sign data with passphrase

* signer, accounts: remove duplicated code, pass hash preimages to signing

* signer: prevent panic in type assertions, make cliui print rawdata as quotable-safe

* signer: linter fixes, remove deprecated crypto dependency

* accounts: fix goimport
This commit is contained in:
Paul Berg 2019-02-06 07:30:49 +00:00 committed by Martin Holst Swende
parent 7c60d0a6a2
commit 572baae10a
19 changed files with 1970 additions and 170 deletions

View File

@ -35,6 +35,13 @@ type Account struct {
URL URL `json:"url"` // Optional resource locator within a backend URL URL `json:"url"` // Optional resource locator within a backend
} }
const (
MimetypeTextWithValidator = "text/validator"
MimetypeTypedData = "data/typed"
MimetypeClique = "application/x-clique-header"
MimetypeTextPlain = "text/plain"
)
// Wallet represents a software or hardware wallet that might contain one or more // Wallet represents a software or hardware wallet that might contain one or more
// accounts (derived from the same seed). // accounts (derived from the same seed).
type Wallet interface { type Wallet interface {
@ -101,6 +108,12 @@ type Wallet interface {
// the account in a keystore). // the account in a keystore).
SignData(account Account, mimeType string, data []byte) ([]byte, error) SignData(account Account, mimeType string, data []byte) ([]byte, error)
// SignDataWithPassphrase is identical to SignData, but also takes a password
// NOTE: there's an chance that an erroneous call might mistake the two strings, and
// supply password in the mimetype field, or vice versa. Thus, an implementation
// should never echo the mimetype or return the mimetype in the error-response
SignDataWithPassphrase(account Account, passphrase, mimeType string, data []byte) ([]byte, error)
// Signtext requests the wallet to sign the hash of a given piece of data, prefixed // Signtext requests the wallet to sign the hash of a given piece of data, prefixed
// by the Ethereum prefix scheme // by the Ethereum prefix scheme
// It looks up the account specified either solely via its address contained within, // It looks up the account specified either solely via its address contained within,
@ -114,6 +127,9 @@ type Wallet interface {
// the account in a keystore). // the account in a keystore).
SignText(account Account, text []byte) ([]byte, error) SignText(account Account, text []byte) ([]byte, error)
// SignTextWithPassphrase is identical to Signtext, but also takes a password
SignTextWithPassphrase(account Account, passphrase string, hash []byte) ([]byte, error)
// SignTx requests the wallet to sign the given transaction. // SignTx requests the wallet to sign the given transaction.
// //
// It looks up the account specified either solely via its address contained within, // It looks up the account specified either solely via its address contained within,
@ -127,18 +143,7 @@ type Wallet interface {
// the account in a keystore). // the account in a keystore).
SignTx(account Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) SignTx(account Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error)
// SignTextWithPassphrase requests the wallet to sign the given text with the // SignTxWithPassphrase is identical to SignTx, but also takes a password
// given passphrase as extra authentication information.
//
// It looks up the account specified either solely via its address contained within,
// or optionally with the aid of any location metadata from the embedded URL field.
SignTextWithPassphrase(account Account, passphrase string, hash []byte) ([]byte, error)
// SignTxWithPassphrase requests the wallet to sign the given transaction, with the
// given passphrase as extra authentication information.
//
// It looks up the account specified either solely via its address contained within,
// or optionally with the aid of any location metadata from the embedded URL field.
SignTxWithPassphrase(account Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) SignTxWithPassphrase(account Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error)
} }
@ -170,9 +175,22 @@ type Backend interface {
// //
// This gives context to the signed message and prevents signing of transactions. // This gives context to the signed message and prevents signing of transactions.
func TextHash(data []byte) []byte { func TextHash(data []byte) []byte {
hash := sha3.NewLegacyKeccak256() hash, _ := TextAndHash(data)
fmt.Fprintf(hash, "\x19Ethereum Signed Message:\n%d%s", len(data), data) return hash
return hash.Sum(nil) }
// TextAndHash is a helper function that calculates a hash for the given message that can be
// safely used to calculate a signature from.
//
// The hash is calulcated as
// keccak256("\x19Ethereum Signed Message:\n"${message length}${message}).
//
// This gives context to the signed message and prevents signing of transactions.
func TextAndHash(data []byte) ([]byte, string) {
msg := fmt.Sprintf("\x19Ethereum Signed Message:\n%d%s", len(data), string(data))
hasher := sha3.NewLegacyKeccak256()
hasher.Write([]byte(msg))
return hasher.Sum(nil), msg
} }
// WalletEventType represents the different event types that can be fired by // WalletEventType represents the different event types that can be fired by

View File

@ -184,11 +184,14 @@ func (api *ExternalSigner) SignTx(account accounts.Account, tx *types.Transactio
} }
func (api *ExternalSigner) SignTextWithPassphrase(account accounts.Account, passphrase string, text []byte) ([]byte, error) { func (api *ExternalSigner) SignTextWithPassphrase(account accounts.Account, passphrase string, text []byte) ([]byte, error) {
return []byte{}, fmt.Errorf("operation not supported on external signers") return []byte{}, fmt.Errorf("passphrase-operations not supported on external signers")
} }
func (api *ExternalSigner) SignTxWithPassphrase(account accounts.Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) { func (api *ExternalSigner) SignTxWithPassphrase(account accounts.Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
return nil, fmt.Errorf("operation not supported on external signers") return nil, fmt.Errorf("passphrase-operations not supported on external signers")
}
func (api *ExternalSigner) SignDataWithPassphrase(account accounts.Account, passphrase, mimeType string, data []byte) ([]byte, error) {
return nil, fmt.Errorf("passphrase-operations not supported on external signers")
} }
func (api *ExternalSigner) listAccounts() ([]common.Address, error) { func (api *ExternalSigner) listAccounts() ([]common.Address, error) {
@ -201,7 +204,7 @@ func (api *ExternalSigner) listAccounts() ([]common.Address, error) {
func (api *ExternalSigner) signCliqueBlock(a common.Address, rlpBlock hexutil.Bytes) (hexutil.Bytes, error) { func (api *ExternalSigner) signCliqueBlock(a common.Address, rlpBlock hexutil.Bytes) (hexutil.Bytes, error) {
var sig hexutil.Bytes var sig hexutil.Bytes
if err := api.client.Call(&sig, "account_signData", "application/clique", a, rlpBlock); err != nil { if err := api.client.Call(&sig, "account_signData", core.ApplicationClique.Mime, a, rlpBlock); err != nil {
return nil, err return nil, err
} }
if sig[64] != 27 && sig[64] != 28 { if sig[64] != 27 && sig[64] != 28 {

View File

@ -97,10 +97,31 @@ func (w *keystoreWallet) SignData(account accounts.Account, mimeType string, dat
return w.signHash(account, crypto.Keccak256(data)) return w.signHash(account, crypto.Keccak256(data))
} }
// SignDataWithPassphrase signs keccak256(data). The mimetype parameter describes the type of data being signed
func (w *keystoreWallet) SignDataWithPassphrase(account accounts.Account, passphrase, mimeType string, data []byte) ([]byte, error) {
// Make sure the requested account is contained within
if !w.Contains(account) {
return nil, accounts.ErrUnknownAccount
}
// Account seems valid, request the keystore to sign
return w.keystore.SignHashWithPassphrase(account, passphrase, crypto.Keccak256(data))
}
func (w *keystoreWallet) SignText(account accounts.Account, text []byte) ([]byte, error) { func (w *keystoreWallet) SignText(account accounts.Account, text []byte) ([]byte, error) {
return w.signHash(account, accounts.TextHash(text)) return w.signHash(account, accounts.TextHash(text))
} }
// SignHashWithPassphrase implements accounts.Wallet, attempting to sign the
// given hash with the given account using passphrase as extra authentication.
func (w *keystoreWallet) SignTextWithPassphrase(account accounts.Account, passphrase string, text []byte) ([]byte, error) {
// Make sure the requested account is contained within
if !w.Contains(account) {
return nil, accounts.ErrUnknownAccount
}
// Account seems valid, request the keystore to sign
return w.keystore.SignHashWithPassphrase(account, passphrase, accounts.TextHash(text))
}
// SignTx implements accounts.Wallet, attempting to sign the given transaction // SignTx implements accounts.Wallet, attempting to sign the given transaction
// with the given account. If the wallet does not wrap this particular account, // with the given account. If the wallet does not wrap this particular account,
// an error is returned to avoid account leakage (even though in theory we may // an error is returned to avoid account leakage (even though in theory we may
@ -114,17 +135,6 @@ func (w *keystoreWallet) SignTx(account accounts.Account, tx *types.Transaction,
return w.keystore.SignTx(account, tx, chainID) return w.keystore.SignTx(account, tx, chainID)
} }
// SignHashWithPassphrase implements accounts.Wallet, attempting to sign the
// given hash with the given account using passphrase as extra authentication.
func (w *keystoreWallet) SignTextWithPassphrase(account accounts.Account, passphrase string, text []byte) ([]byte, error) {
// Make sure the requested account is contained within
if !w.Contains(account) {
return nil, accounts.ErrUnknownAccount
}
// Account seems valid, request the keystore to sign
return w.keystore.SignHashWithPassphrase(account, passphrase, accounts.TextHash(text))
}
// SignTxWithPassphrase implements accounts.Wallet, attempting to sign the given // SignTxWithPassphrase implements accounts.Wallet, attempting to sign the given
// transaction with the given account using passphrase as extra authentication. // transaction with the given account using passphrase as extra authentication.
func (w *keystoreWallet) SignTxWithPassphrase(account accounts.Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) { func (w *keystoreWallet) SignTxWithPassphrase(account accounts.Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {

View File

@ -507,6 +507,13 @@ func (w *wallet) SignData(account accounts.Account, mimeType string, data []byte
return w.signHash(account, crypto.Keccak256(data)) return w.signHash(account, crypto.Keccak256(data))
} }
// SignDataWithPassphrase implements accounts.Wallet, attempting to sign the given
// data with the given account using passphrase as extra authentication.
// Since USB wallets don't rely on passphrases, these are silently ignored.
func (w *wallet) SignDataWithPassphrase(account accounts.Account, passphrase, mimeType string, data []byte) ([]byte, error) {
return w.SignData(account, mimeType, data)
}
func (w *wallet) SignText(account accounts.Account, text []byte) ([]byte, error) { func (w *wallet) SignText(account accounts.Account, text []byte) ([]byte, error) {
return w.signHash(account, accounts.TextHash(text)) return w.signHash(account, accounts.TextHash(text))
} }

View File

@ -189,7 +189,9 @@ None
"method": "account_new", "method": "account_new",
"params": [] "params": []
} }
```
Response
```
{ {
"id": 0, "id": 0,
"jsonrpc": "2.0", "jsonrpc": "2.0",
@ -222,7 +224,9 @@ None
"jsonrpc": "2.0", "jsonrpc": "2.0",
"method": "account_list" "method": "account_list"
} }
```
Response
```
{ {
"id": 1, "id": 1,
"jsonrpc": "2.0", "jsonrpc": "2.0",
@ -285,8 +289,8 @@ Response
```json ```json
{ {
"id": 2,
"jsonrpc": "2.0", "jsonrpc": "2.0",
"id": 67,
"error": { "error": {
"code": -32000, "code": -32000,
"message": "Request denied" "message": "Request denied"
@ -298,6 +302,7 @@ Response
```json ```json
{ {
"id": 67,
"jsonrpc": "2.0", "jsonrpc": "2.0",
"method": "account_signTransaction", "method": "account_signTransaction",
"params": [ "params": [
@ -311,8 +316,7 @@ Response
"data": "0x4401a6e40000000000000000000000000000000000000000000000000000000000000012" "data": "0x4401a6e40000000000000000000000000000000000000000000000000000000000000012"
}, },
"safeSend(address)" "safeSend(address)"
], ]
"id": 67
} }
``` ```
Response Response
@ -346,15 +350,18 @@ Bash example:
{"jsonrpc":"2.0","id":67,"result":{"raw":"0xf88380018203339407a565b7ed7d7a678680a4c162885bedbb695fe080a44401a6e4000000000000000000000000000000000000000000000000000000000000001226a0223a7c9bcf5531c99be5ea7082183816eb20cfe0bbc322e97cc5c7f71ab8b20ea02aadee6b34b45bb15bc42d9c09de4a6754e7000908da72d48cc7704971491663","tx":{"nonce":"0x0","gasPrice":"0x1","gas":"0x333","to":"0x07a565b7ed7d7a678680a4c162885bedbb695fe0","value":"0x0","input":"0x4401a6e40000000000000000000000000000000000000000000000000000000000000012","v":"0x26","r":"0x223a7c9bcf5531c99be5ea7082183816eb20cfe0bbc322e97cc5c7f71ab8b20e","s":"0x2aadee6b34b45bb15bc42d9c09de4a6754e7000908da72d48cc7704971491663","hash":"0xeba2df809e7a612a0a0d444ccfa5c839624bdc00dd29e3340d46df3870f8a30e"}}} {"jsonrpc":"2.0","id":67,"result":{"raw":"0xf88380018203339407a565b7ed7d7a678680a4c162885bedbb695fe080a44401a6e4000000000000000000000000000000000000000000000000000000000000001226a0223a7c9bcf5531c99be5ea7082183816eb20cfe0bbc322e97cc5c7f71ab8b20ea02aadee6b34b45bb15bc42d9c09de4a6754e7000908da72d48cc7704971491663","tx":{"nonce":"0x0","gasPrice":"0x1","gas":"0x333","to":"0x07a565b7ed7d7a678680a4c162885bedbb695fe0","value":"0x0","input":"0x4401a6e40000000000000000000000000000000000000000000000000000000000000012","v":"0x26","r":"0x223a7c9bcf5531c99be5ea7082183816eb20cfe0bbc322e97cc5c7f71ab8b20e","s":"0x2aadee6b34b45bb15bc42d9c09de4a6754e7000908da72d48cc7704971491663","hash":"0xeba2df809e7a612a0a0d444ccfa5c839624bdc00dd29e3340d46df3870f8a30e"}}}
``` ```
### account_signData
### account_sign
#### Sign data #### Sign data
Signs a chunk of data and returns the calculated signature. Signs a chunk of data and returns the calculated signature.
#### Arguments #### Arguments
- content type [string]: type of signed data
- `text/validator`: hex data with custom validator defined in a contract
- `application/clique`: [clique](https://github.com/ethereum/EIPs/issues/225) headers
- `text/plain`: simple hex data validated by `account_ecRecover`
- account [address]: account to sign with - account [address]: account to sign with
- data [data]: data to sign - data [object]: data to sign
#### Result #### Result
- calculated signature [data] - calculated signature [data]
@ -364,8 +371,9 @@ Bash example:
{ {
"id": 3, "id": 3,
"jsonrpc": "2.0", "jsonrpc": "2.0",
"method": "account_sign", "method": "account_signData",
"params": [ "params": [
"data/plain",
"0x1923f626bb8dc025849e00f99c25fe2b2f7fb0db", "0x1923f626bb8dc025849e00f99c25fe2b2f7fb0db",
"0xaabbccdd" "0xaabbccdd"
] ]
@ -381,11 +389,109 @@ Response
} }
``` ```
### account_signTypedData
#### Sign data
Signs a chunk of structured data conformant to [EIP712]([EIP-712](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-712.md)) and returns the calculated signature.
#### Arguments
- account [address]: account to sign with
- data [object]: data to sign
#### Result
- calculated signature [data]
#### Sample call
```json
{
"id": 68,
"jsonrpc": "2.0",
"method": "account_signTypedData",
"params": [
"0xcd2a3d9f938e13cd947ec05abc7fe734df8dd826",
{
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Person": [
{
"name": "name",
"type": "string"
},
{
"name": "wallet",
"type": "address"
}
],
"Mail": [
{
"name": "from",
"type": "Person"
},
{
"name": "to",
"type": "Person"
},
{
"name": "contents",
"type": "string"
}
]
},
"primaryType": "Mail",
"domain": {
"name": "Ether Mail",
"version": "1",
"chainId": 1,
"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
},
"message": {
"from": {
"name": "Cow",
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"
},
"to": {
"name": "Bob",
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"
},
"contents": "Hello, Bob!"
}
}
]
}
```
Response
```json
{
"id": 1,
"jsonrpc": "2.0",
"result": "0x4355c47d63924e8a72e509b65029052eb6c299d53a04e167c5775fd466751c9d07299936d304c153f6443dfa05f40ff007d72911b6f72307f996231605b915621c"
}
```
### account_ecRecover ### account_ecRecover
#### Recover address #### Sign data
Derive the address from the account that was used to sign data from the data and signature.
Derive the address from the account that was used to sign data with content type `text/plain` and the signature.
#### Arguments #### Arguments
- data [data]: data that was signed - data [data]: data that was signed
- signature [data]: the signature to verify - signature [data]: the signature to verify
@ -400,6 +506,7 @@ Response
"jsonrpc": "2.0", "jsonrpc": "2.0",
"method": "account_ecRecover", "method": "account_ecRecover",
"params": [ "params": [
"data/plain",
"0xaabbccdd", "0xaabbccdd",
"0x5b6693f153b48ec1c706ba4169960386dbaa6903e249cc79a8e6ddc434451d417e1e57327872c7f538beeb323c300afa9999a3d4a5de6caf3be0d5ef832b67ef1c" "0x5b6693f153b48ec1c706ba4169960386dbaa6903e249cc79a8e6ddc434451d417e1e57327872c7f538beeb323c300afa9999a3d4a5de6caf3be0d5ef832b67ef1c"
] ]
@ -413,7 +520,6 @@ Response
"jsonrpc": "2.0", "jsonrpc": "2.0",
"result": "0x1923f626bb8dc025849e00f99c25fe2b2f7fb0db" "result": "0x1923f626bb8dc025849e00f99c25fe2b2f7fb0db"
} }
``` ```
### account_import ### account_import
@ -458,7 +564,7 @@ Response
}, },
"id": "09bccb61-b8d3-4e93-bf4f-205a8194f0b9", "id": "09bccb61-b8d3-4e93-bf4f-205a8194f0b9",
"version": 3 "version": 3
}, }
] ]
} }
``` ```

View File

@ -1,5 +1,15 @@
### Changelog for external API ### Changelog for external API
#### 5.0.0
* The external `account_EcRecover`-method was reimplemented.
* The external method `account_sign(address, data)` was replaced with `account_signData(contentType, address, data)`.
The addition of `contentType` makes it possible to use the method for different types of objects, such as:
* signing data with an intended validator (not yet implemented)
* signing clique headers,
* signing plain personal messages,
* The external method `account_signTypedData` implements [EIP-712](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-712.md) and makes it possible to sign typed data.
#### 4.0.0 #### 4.0.0
* The external `account_Ecrecover`-method was removed. * The external `account_Ecrecover`-method was removed.

View File

@ -1,5 +1,9 @@
### Changelog for internal API (ui-api) ### Changelog for internal API (ui-api)
### 3.1.0
* Add `ContentType string` to `SignDataRequest` to accommodate the latest EIP-191 and EIP-712 implementations.
### 3.0.0 ### 3.0.0
* Make use of `OnInputRequired(info UserInputRequest)` for obtaining master password during startup * Make use of `OnInputRequired(info UserInputRequest)` for obtaining master password during startup

View File

@ -28,6 +28,7 @@ import (
"fmt" "fmt"
"io" "io"
"io/ioutil" "io/ioutil"
"math/big"
"os" "os"
"os/signal" "os/signal"
"os/user" "os/user"
@ -39,9 +40,11 @@ import (
"github.com/ethereum/go-ethereum/cmd/utils" "github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/console" "github.com/ethereum/go-ethereum/console"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node" "github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/rlp"
"github.com/ethereum/go-ethereum/rpc" "github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/signer/core" "github.com/ethereum/go-ethereum/signer/core"
"github.com/ethereum/go-ethereum/signer/rules" "github.com/ethereum/go-ethereum/signer/rules"
@ -623,10 +626,40 @@ func testExternalUI(api *core.SignerAPI) {
} }
var err error var err error
cliqueHeader := types.Header{
common.HexToHash("0000H45H"),
common.HexToHash("0000H45H"),
common.HexToAddress("0000H45H"),
common.HexToHash("0000H00H"),
common.HexToHash("0000H45H"),
common.HexToHash("0000H45H"),
types.Bloom{},
big.NewInt(1337),
big.NewInt(1337),
1338,
1338,
big.NewInt(1338),
[]byte("Extra data Extra data Extra data Extra data Extra data Extra data Extra data Extra data"),
common.HexToHash("0x0000H45H"),
types.BlockNonce{},
}
cliqueRlp, err := rlp.EncodeToBytes(cliqueHeader)
if err != nil {
utils.Fatalf("Should not error: %v", err)
}
addr, err := common.NewMixedcaseAddressFromString("0x0011223344556677889900112233445566778899")
if err != nil {
utils.Fatalf("Should not error: %v", err)
}
_, err = api.SignData(ctx, "application/clique", *addr, cliqueRlp)
checkErr("SignData", err)
_, err = api.SignTransaction(ctx, core.SendTxArgs{From: common.MixedcaseAddress{}}, nil) _, err = api.SignTransaction(ctx, core.SendTxArgs{From: common.MixedcaseAddress{}}, nil)
checkErr("SignTransaction", err) checkErr("SignTransaction", err)
_, err = api.Sign(ctx, common.MixedcaseAddress{}, common.Hex2Bytes("01020304")) _, err = api.SignData(ctx, "text/plain", common.MixedcaseAddress{}, common.Hex2Bytes("01020304"))
checkErr("Sign", err) checkErr("SignData", err)
//_, err = api.SignTypedData(ctx, common.MixedcaseAddress{}, core.TypedData{})
//checkErr("SignTypedData", err)
_, err = api.List(ctx) _, err = api.List(ctx)
checkErr("List", err) checkErr("List", err)
_, err = api.New(ctx) _, err = api.New(ctx)
@ -646,7 +679,6 @@ func testExternalUI(api *core.SignerAPI) {
} else { } else {
log.Info("No errors") log.Info("No errors")
} }
} }
// getPassPhrase retrieves the password associated with clef, either fetched // getPassPhrase retrieves the password associated with clef, either fetched

View File

@ -616,7 +616,7 @@ func (c *Clique) Seal(chain consensus.ChainReader, block *types.Block, results c
log.Trace("Out-of-turn signing requested", "wiggle", common.PrettyDuration(wiggle)) log.Trace("Out-of-turn signing requested", "wiggle", common.PrettyDuration(wiggle))
} }
// Sign all the things! // Sign all the things!
sighash, err := signFn(accounts.Account{Address: signer}, "application/x-clique-header", CliqueRLP(header)) sighash, err := signFn(accounts.Account{Address: signer}, accounts.MimetypeClique, CliqueRLP(header))
if err != nil { if err != nil {
return err return err
} }

View File

@ -17,17 +17,16 @@
package core package core
import ( import (
"bytes"
"encoding/json" "encoding/json"
"fmt" "fmt"
"io/ioutil" "io/ioutil"
"os"
"regexp"
"strings" "strings"
"github.com/ethereum/go-ethereum/accounts/abi" "github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"bytes"
"os"
"regexp"
) )
type decodedArgument struct { type decodedArgument struct {

View File

@ -18,12 +18,11 @@ package core
import ( import (
"fmt" "fmt"
"strings"
"testing"
"io/ioutil" "io/ioutil"
"math/big" "math/big"
"reflect" "reflect"
"strings"
"testing"
"github.com/ethereum/go-ethereum/accounts/abi" "github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"

View File

@ -30,7 +30,6 @@ import (
"github.com/ethereum/go-ethereum/accounts/usbwallet" "github.com/ethereum/go-ethereum/accounts/usbwallet"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/internal/ethapi" "github.com/ethereum/go-ethereum/internal/ethapi"
"github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/rlp"
@ -40,9 +39,9 @@ const (
// numberOfAccountsToDerive For hardware wallets, the number of accounts to derive // numberOfAccountsToDerive For hardware wallets, the number of accounts to derive
numberOfAccountsToDerive = 10 numberOfAccountsToDerive = 10
// ExternalAPIVersion -- see extapi_changelog.md // ExternalAPIVersion -- see extapi_changelog.md
ExternalAPIVersion = "4.0.0" ExternalAPIVersion = "5.0.0"
// InternalAPIVersion -- see intapi_changelog.md // InternalAPIVersion -- see intapi_changelog.md
InternalAPIVersion = "3.0.0" InternalAPIVersion = "3.1.0"
) )
// ExternalAPI defines the external API through which signing requests are made. // ExternalAPI defines the external API through which signing requests are made.
@ -53,8 +52,12 @@ type ExternalAPI interface {
New(ctx context.Context) (accounts.Account, error) New(ctx context.Context) (accounts.Account, error)
// SignTransaction request to sign the specified transaction // SignTransaction request to sign the specified transaction
SignTransaction(ctx context.Context, args SendTxArgs, methodSelector *string) (*ethapi.SignTransactionResult, error) SignTransaction(ctx context.Context, args SendTxArgs, methodSelector *string) (*ethapi.SignTransactionResult, error)
// Sign - request to sign the given data (plus prefix) // SignData - request to sign the given data (plus prefix)
Sign(ctx context.Context, addr common.MixedcaseAddress, data hexutil.Bytes) (hexutil.Bytes, error) SignData(ctx context.Context, contentType string, addr common.MixedcaseAddress, data interface{}) (hexutil.Bytes, error)
// SignTypedData - request to sign the given structured data (plus prefix)
SignTypedData(ctx context.Context, addr common.MixedcaseAddress, data TypedData) (hexutil.Bytes, error)
// EcRecover - recover public key from given message and signature
EcRecover(ctx context.Context, data hexutil.Bytes, sig hexutil.Bytes) (common.Address, error)
// Export - request to export an account // Export - request to export an account
Export(ctx context.Context, addr common.Address) (json.RawMessage, error) Export(ctx context.Context, addr common.Address) (json.RawMessage, error)
// Import - request to import an account // Import - request to import an account
@ -177,11 +180,12 @@ type (
NewPassword string `json:"new_password"` NewPassword string `json:"new_password"`
} }
SignDataRequest struct { SignDataRequest struct {
Address common.MixedcaseAddress `json:"address"` ContentType string `json:"content_type"`
Rawdata hexutil.Bytes `json:"raw_data"` Address common.MixedcaseAddress `json:"address"`
Message string `json:"message"` Rawdata []byte `json:"raw_data"`
Hash hexutil.Bytes `json:"hash"` Message []*NameValueType `json:"message"`
Meta Metadata `json:"meta"` Hash hexutil.Bytes `json:"hash"`
Meta Metadata `json:"meta"`
} }
SignDataResponse struct { SignDataResponse struct {
Approved bool `json:"approved"` Approved bool `json:"approved"`
@ -517,56 +521,6 @@ func (api *SignerAPI) SignTransaction(ctx context.Context, args SendTxArgs, meth
} }
// Sign calculates an Ethereum ECDSA signature for:
// keccack256("\x19Ethereum Signed Message:\n" + len(message) + message))
//
// Note, the produced signature conforms to the secp256k1 curve R, S and V values,
// where the V value will be 27 or 28 for legacy reasons.
//
// The key used to calculate the signature is decrypted with the given password.
//
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_sign
func (api *SignerAPI) Sign(ctx context.Context, addr common.MixedcaseAddress, data hexutil.Bytes) (hexutil.Bytes, error) {
sighash, msg := SignHash(data)
// We make the request prior to looking up if we actually have the account, to prevent
// account-enumeration via the API
req := &SignDataRequest{Address: addr, Rawdata: data, Message: msg, Hash: sighash, Meta: MetadataFromContext(ctx)}
res, err := api.UI.ApproveSignData(req)
if err != nil {
return nil, err
}
if !res.Approved {
return nil, ErrRequestDenied
}
// Look up the wallet containing the requested signer
account := accounts.Account{Address: addr.Address()}
wallet, err := api.am.Find(account)
if err != nil {
return nil, err
}
// Assemble sign the data with the wallet
signature, err := wallet.SignTextWithPassphrase(account, res.Password, data)
if err != nil {
api.UI.ShowError(err.Error())
return nil, err
}
signature[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
return signature, nil
}
// SignHash is a helper function that calculates a hash for the given message that can be
// safely used to calculate a signature from.
//
// The hash is calculated as
// keccak256("\x19Ethereum Signed Message:\n"${message length}${message}).
//
// This gives context to the signed message and prevents signing of transactions.
func SignHash(data []byte) ([]byte, string) {
msg := fmt.Sprintf("\x19Ethereum Signed Message:\n%d%s", len(data), data)
return crypto.Keccak256([]byte(msg)), msg
}
// Export returns encrypted private key associated with the given address in web3 keystore format. // Export returns encrypted private key associated with the given address in web3 keystore format.
func (api *SignerAPI) Export(ctx context.Context, addr common.Address) (json.RawMessage, error) { func (api *SignerAPI) Export(ctx context.Context, addr common.Address) (json.RawMessage, error) {
res, err := api.UI.ApproveExport(&ExportRequest{Address: addr, Meta: MetadataFromContext(ctx)}) res, err := api.UI.ApproveExport(&ExportRequest{Address: addr, Meta: MetadataFromContext(ctx)})

View File

@ -244,45 +244,6 @@ func TestNewAcc(t *testing.T) {
} }
} }
func TestSignData(t *testing.T) {
api, control := setup(t)
//Create two accounts
createAccount(control, api, t)
createAccount(control, api, t)
control <- "1"
list, err := api.List(context.Background())
if err != nil {
t.Fatal(err)
}
a := common.NewMixedcaseAddress(list[0])
control <- "Y"
control <- "wrongpassword"
h, err := api.Sign(context.Background(), a, []byte("EHLO world"))
if h != nil {
t.Errorf("Expected nil-data, got %x", h)
}
if err != keystore.ErrDecrypt {
t.Errorf("Expected ErrLocked! %v", err)
}
control <- "No way"
h, err = api.Sign(context.Background(), a, []byte("EHLO world"))
if h != nil {
t.Errorf("Expected nil-data, got %x", h)
}
if err != ErrRequestDenied {
t.Errorf("Expected ErrRequestDenied! %v", err)
}
control <- "Y"
control <- "a_long_password"
h, err = api.Sign(context.Background(), a, []byte("EHLO world"))
if err != nil {
t.Fatal(err)
}
if h == nil || len(h) != 65 {
t.Errorf("Expected 65 byte signature (got %d bytes)", len(h))
}
}
func mkTestTx(from common.MixedcaseAddress) SendTxArgs { func mkTestTx(from common.MixedcaseAddress) SendTxArgs {
to := common.NewMixedcaseAddress(common.HexToAddress("0x1337")) to := common.NewMixedcaseAddress(common.HexToAddress("0x1337"))
gas := hexutil.Uint64(21000) gas := hexutil.Uint64(21000)

View File

@ -18,7 +18,6 @@ package core
import ( import (
"context" "context"
"encoding/json" "encoding/json"
"github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/accounts"
@ -63,11 +62,27 @@ func (l *AuditLogger) SignTransaction(ctx context.Context, args SendTxArgs, meth
return res, e return res, e
} }
func (l *AuditLogger) Sign(ctx context.Context, addr common.MixedcaseAddress, data hexutil.Bytes) (hexutil.Bytes, error) { func (l *AuditLogger) SignData(ctx context.Context, contentType string, addr common.MixedcaseAddress, data interface{}) (hexutil.Bytes, error) {
l.log.Info("Sign", "type", "request", "metadata", MetadataFromContext(ctx).String(), l.log.Info("SignData", "type", "request", "metadata", MetadataFromContext(ctx).String(),
"addr", addr.String(), "data", common.Bytes2Hex(data)) "addr", addr.String(), "data", data, "content-type", contentType)
b, e := l.api.Sign(ctx, addr, data) b, e := l.api.SignData(ctx, contentType, addr, data)
l.log.Info("Sign", "type", "response", "data", common.Bytes2Hex(b), "error", e) l.log.Info("SignData", "type", "response", "data", common.Bytes2Hex(b), "error", e)
return b, e
}
func (l *AuditLogger) SignTypedData(ctx context.Context, addr common.MixedcaseAddress, data TypedData) (hexutil.Bytes, error) {
l.log.Info("SignTypedData", "type", "request", "metadata", MetadataFromContext(ctx).String(),
"addr", addr.String(), "data", data)
b, e := l.api.SignTypedData(ctx, addr, data)
l.log.Info("SignTypedData", "type", "response", "data", common.Bytes2Hex(b), "error", e)
return b, e
}
func (l *AuditLogger) EcRecover(ctx context.Context, data hexutil.Bytes, sig hexutil.Bytes) (common.Address, error) {
l.log.Info("EcRecover", "type", "request", "metadata", MetadataFromContext(ctx).String(),
"data", common.Bytes2Hex(data), "sig", common.Bytes2Hex(sig))
b, e := l.api.EcRecover(ctx, data, sig)
l.log.Info("EcRecover", "type", "response", "address", b.String(), "error", e)
return b, e return b, e
} }

View File

@ -21,7 +21,6 @@ import (
"fmt" "fmt"
"os" "os"
"strings" "strings"
"sync" "sync"
"github.com/davecgh/go-spew/spew" "github.com/davecgh/go-spew/spew"
@ -165,8 +164,12 @@ func (ui *CommandlineUI) ApproveSignData(request *SignDataRequest) (SignDataResp
fmt.Printf("-------- Sign data request--------------\n") fmt.Printf("-------- Sign data request--------------\n")
fmt.Printf("Account: %s\n", request.Address.String()) fmt.Printf("Account: %s\n", request.Address.String())
fmt.Printf("message: \n%q\n", request.Message) fmt.Printf("message:\n")
fmt.Printf("raw data: \n%v\n", request.Rawdata) for _, nvt := range request.Message {
fmt.Printf("%v\n", nvt.Pprint(1))
}
//fmt.Printf("message: \n%v\n", request.Message)
fmt.Printf("raw data: \n%q\n", request.Rawdata)
fmt.Printf("message hash: %v\n", request.Hash) fmt.Printf("message hash: %v\n", request.Hash)
fmt.Printf("-------------------------------------------\n") fmt.Printf("-------------------------------------------\n")
showMetadata(request.Meta) showMetadata(request.Meta)

899
signer/core/signed_data.go Normal file
View File

@ -0,0 +1,899 @@
// Copyright 2018 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
//
package core
import (
"bytes"
"context"
"errors"
"fmt"
"math/big"
"mime"
"regexp"
"sort"
"strconv"
"strings"
"unicode"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/common/math"
"github.com/ethereum/go-ethereum/consensus/clique"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/rlp"
)
type SigFormat struct {
Mime string
ByteVersion byte
}
var (
TextValidator = SigFormat{
accounts.MimetypeTextWithValidator,
0x00,
}
DataTyped = SigFormat{
accounts.MimetypeTypedData,
0x01,
}
ApplicationClique = SigFormat{
accounts.MimetypeClique,
0x02,
}
TextPlain = SigFormat{
accounts.MimetypeTextPlain,
0x45,
}
)
type ValidatorData struct {
Address common.Address
Message hexutil.Bytes
}
type TypedData struct {
Types Types `json:"types"`
PrimaryType string `json:"primaryType"`
Domain TypedDataDomain `json:"domain"`
Message TypedDataMessage `json:"message"`
}
type Type struct {
Name string `json:"name"`
Type string `json:"type"`
}
func (t *Type) isArray() bool {
return strings.HasSuffix(t.Type, "[]")
}
// typeName returns the canonical name of the type. If the type is 'Person[]', then
// this method returns 'Person'
func (t *Type) typeName() string {
if strings.HasSuffix(t.Type, "[]") {
return strings.TrimSuffix(t.Type, "[]")
}
return t.Type
}
func (t *Type) isReferenceType() bool {
// Reference types must have a leading uppercase characer
return unicode.IsUpper([]rune(t.Type)[0])
}
type Types map[string][]Type
type TypePriority struct {
Type string
Value uint
}
type TypedDataMessage = map[string]interface{}
type TypedDataDomain struct {
Name string `json:"name"`
Version string `json:"version"`
ChainId *big.Int `json:"chainId"`
VerifyingContract string `json:"verifyingContract"`
Salt string `json:"salt"`
}
var typedDataReferenceTypeRegexp = regexp.MustCompile(`^[A-Z](\w*)(\[\])?$`)
// sign receives a request and produces a signature
// Note, the produced signature conforms to the secp256k1 curve R, S and V values,
// where the V value will be 27 or 28 for legacy reasons.
func (api *SignerAPI) sign(addr common.MixedcaseAddress, req *SignDataRequest) (hexutil.Bytes, error) {
// We make the request prior to looking up if we actually have the account, to prevent
// account-enumeration via the API
res, err := api.UI.ApproveSignData(req)
if err != nil {
return nil, err
}
if !res.Approved {
return nil, ErrRequestDenied
}
// Look up the wallet containing the requested signer
account := accounts.Account{Address: addr.Address()}
wallet, err := api.am.Find(account)
if err != nil {
return nil, err
}
// Sign the data with the wallet
signature, err := wallet.SignDataWithPassphrase(account, res.Password, req.ContentType, req.Hash)
if err != nil {
return nil, err
}
signature[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
return signature, nil
}
// SignData signs the hash of the provided data, but does so differently
// depending on the content-type specified.
//
// Different types of validation occur.
func (api *SignerAPI) SignData(ctx context.Context, contentType string, addr common.MixedcaseAddress, data interface{}) (hexutil.Bytes, error) {
var req, err = api.determineSignatureFormat(ctx, contentType, addr, data)
if err != nil {
return nil, err
}
signature, err := api.sign(addr, req)
if err != nil {
api.UI.ShowError(err.Error())
return nil, err
}
return signature, nil
}
// determineSignatureFormat determines which signature method should be used based upon the mime type
// In the cases where it matters ensure that the charset is handled. The charset
// resides in the 'params' returned as the second returnvalue from mime.ParseMediaType
// charset, ok := params["charset"]
// As it is now, we accept any charset and just treat it as 'raw'.
// This method returns the mimetype for signing along with the request
func (api *SignerAPI) determineSignatureFormat(ctx context.Context, contentType string, addr common.MixedcaseAddress, data interface{}) (*SignDataRequest, error) {
var req *SignDataRequest
mediaType, _, err := mime.ParseMediaType(contentType)
if err != nil {
return nil, err
}
switch mediaType {
case TextValidator.Mime:
// Data with an intended validator
validatorData, err := UnmarshalValidatorData(data)
if err != nil {
return nil, err
}
sighash, msg := SignTextValidator(validatorData)
message := []*NameValueType{
{
Name: "message",
Typ: "text",
Value: msg,
},
}
req = &SignDataRequest{ContentType: mediaType, Rawdata: []byte(msg), Message: message, Hash: sighash}
case ApplicationClique.Mime:
// Clique is the Ethereum PoA standard
stringData, ok := data.(string)
if !ok {
return nil, fmt.Errorf("input for %v plain must be an hex-encoded string", ApplicationClique.Mime)
}
cliqueData, err := hexutil.Decode(stringData)
if err != nil {
return nil, err
}
header := &types.Header{}
if err := rlp.DecodeBytes(cliqueData, header); err != nil {
return nil, err
}
// Get back the rlp data, encoded by us
cliqueData = clique.CliqueRLP(header)
sighash, err := SignCliqueHeader(header)
if err != nil {
return nil, err
}
message := []*NameValueType{
{
Name: "Clique block",
Typ: "clique",
Value: fmt.Sprintf("clique block %d [0x%x]", header.Number, header.Hash()),
},
}
req = &SignDataRequest{ContentType: mediaType, Rawdata: cliqueData, Message: message, Hash: sighash}
default: // also case TextPlain.Mime:
// Calculates an Ethereum ECDSA signature for:
// hash = keccak256("\x19${byteVersion}Ethereum Signed Message:\n${message length}${message}")
// We expect it to be a string
stringData, ok := data.(string)
if !ok {
return nil, fmt.Errorf("input for text/plain must be a string")
}
//plainData, err := hexutil.Decode(stringdata)
//if err != nil {
// return nil, err
//}
sighash, msg := accounts.TextAndHash([]byte(stringData))
message := []*NameValueType{
{
Name: "message",
Typ: "text/plain",
Value: msg,
},
}
req = &SignDataRequest{ContentType: mediaType, Rawdata: []byte(msg), Message: message, Hash: sighash}
}
req.Address = addr
req.Meta = MetadataFromContext(ctx)
return req, nil
}
// SignTextWithValidator signs the given message which can be further recovered
// with the given validator.
// hash = keccak256("\x19\x00"${address}${data}).
func SignTextValidator(validatorData ValidatorData) (hexutil.Bytes, string) {
msg := fmt.Sprintf("\x19\x00%s%s", string(validatorData.Address.Bytes()), string(validatorData.Message))
fmt.Printf("SignTextValidator:%s\n", msg)
return crypto.Keccak256([]byte(msg)), msg
}
// SignCliqueHeader returns the hash which is used as input for the proof-of-authority
// signing. It is the hash of the entire header apart from the 65 byte signature
// contained at the end of the extra data.
//
// The method requires the extra data to be at least 65 bytes -- the original implementation
// in clique.go panics if this is the case, thus it's been reimplemented here to avoid the panic
// and simply return an error instead
func SignCliqueHeader(header *types.Header) (hexutil.Bytes, error) {
//hash := common.Hash{}
if len(header.Extra) < 65 {
return nil, fmt.Errorf("clique header extradata too short, %d < 65", len(header.Extra))
}
hash := clique.SealHash(header)
return hash.Bytes(), nil
}
// SignTypedData signs EIP-712 conformant typed data
// hash = keccak256("\x19${byteVersion}${domainSeparator}${hashStruct(message)}")
func (api *SignerAPI) SignTypedData(ctx context.Context, addr common.MixedcaseAddress, typedData TypedData) (hexutil.Bytes, error) {
domainSeparator, err := typedData.HashStruct("EIP712Domain", typedData.Domain.Map())
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)
message := typedData.Format()
req := &SignDataRequest{ContentType: DataTyped.Mime, Rawdata: rawData, Message: message, Hash: sighash}
signature, err := api.sign(addr, req)
if err != nil {
api.UI.ShowError(err.Error())
return nil, err
}
return signature, nil
}
// HashStruct generates a keccak256 hash of the encoding of the provided data
func (typedData *TypedData) HashStruct(primaryType string, data TypedDataMessage) (hexutil.Bytes, error) {
encodedData, err := typedData.EncodeData(primaryType, data, 1)
if err != nil {
return nil, err
}
return crypto.Keccak256(encodedData), nil
}
// Dependencies returns an array of custom types ordered by their hierarchical reference tree
func (typedData *TypedData) Dependencies(primaryType string, found []string) []string {
includes := func(arr []string, str string) bool {
for _, obj := range arr {
if obj == str {
return true
}
}
return false
}
if includes(found, primaryType) {
return found
}
if typedData.Types[primaryType] == nil {
return found
}
found = append(found, primaryType)
for _, field := range typedData.Types[primaryType] {
for _, dep := range typedData.Dependencies(field.Type, found) {
if !includes(found, dep) {
found = append(found, dep)
}
}
}
return found
}
// EncodeType generates the following encoding:
// `name ‖ "(" ‖ member₁ ‖ "," ‖ member₂ ‖ "," ‖ … ‖ memberₙ ")"`
//
// each member is written as `type ‖ " " ‖ name` encodings cascade down and are sorted by name
func (typedData *TypedData) EncodeType(primaryType string) hexutil.Bytes {
// Get dependencies primary first, then alphabetical
deps := typedData.Dependencies(primaryType, []string{})
slicedDeps := deps[1:]
sort.Strings(slicedDeps)
deps = append([]string{primaryType}, slicedDeps...)
// Format as a string with fields
var buffer bytes.Buffer
for _, dep := range deps {
buffer.WriteString(dep)
buffer.WriteString("(")
for _, obj := range typedData.Types[dep] {
buffer.WriteString(obj.Type)
buffer.WriteString(" ")
buffer.WriteString(obj.Name)
buffer.WriteString(",")
}
buffer.Truncate(buffer.Len() - 1)
buffer.WriteString(")")
}
return buffer.Bytes()
}
// TypeHash creates the keccak256 hash of the data
func (typedData *TypedData) TypeHash(primaryType string) hexutil.Bytes {
return crypto.Keccak256(typedData.EncodeType(primaryType))
}
// EncodeData generates the following encoding:
// `enc(value₁) ‖ enc(value₂) ‖ … ‖ enc(valueₙ)`
//
// each encoded member is 32-byte long
func (typedData *TypedData) EncodeData(primaryType string, data map[string]interface{}, depth int) (hexutil.Bytes, error) {
if err := typedData.validate(); err != nil {
return nil, err
}
buffer := bytes.Buffer{}
// Verify extra data
if len(typedData.Types[primaryType]) < len(data) {
return nil, errors.New("there is extra data provided in the message")
}
// Add typehash
buffer.Write(typedData.TypeHash(primaryType))
// Add field contents. Structs and arrays have special handlers.
for _, field := range typedData.Types[primaryType] {
encType := field.Type
encValue := data[field.Name]
if encType[len(encType)-1:] == "]" {
arrayValue, ok := encValue.([]interface{})
if !ok {
return nil, dataMismatchError(encType, encValue)
}
arrayBuffer := bytes.Buffer{}
parsedType := strings.Split(encType, "[")[0]
for _, item := range arrayValue {
if typedData.Types[parsedType] != nil {
mapValue, ok := item.(map[string]interface{})
if !ok {
return nil, dataMismatchError(parsedType, item)
}
encodedData, err := typedData.EncodeData(parsedType, mapValue, depth+1)
if err != nil {
return nil, err
}
arrayBuffer.Write(encodedData)
} else {
bytesValue, err := typedData.EncodePrimitiveValue(parsedType, item, depth)
if err != nil {
return nil, err
}
arrayBuffer.Write(bytesValue)
}
}
buffer.Write(crypto.Keccak256(arrayBuffer.Bytes()))
} else if typedData.Types[field.Type] != nil {
mapValue, ok := encValue.(map[string]interface{})
if !ok {
return nil, dataMismatchError(encType, encValue)
}
encodedData, err := typedData.EncodeData(field.Type, mapValue, depth+1)
if err != nil {
return nil, err
}
buffer.Write(crypto.Keccak256(encodedData))
} else {
byteValue, err := typedData.EncodePrimitiveValue(encType, encValue, depth)
if err != nil {
return nil, err
}
buffer.Write(byteValue)
}
}
return buffer.Bytes(), nil
}
// EncodePrimitiveValue deals with the primitive values found
// while searching through the typed data
func (typedData *TypedData) EncodePrimitiveValue(encType string, encValue interface{}, depth int) ([]byte, error) {
switch encType {
case "address":
stringValue, ok := encValue.(string)
if !ok || !common.IsHexAddress(stringValue) {
return nil, dataMismatchError(encType, encValue)
}
retval := make([]byte, 32)
copy(retval[12:], common.HexToAddress(stringValue).Bytes())
return retval, nil
case "bool":
boolValue, ok := encValue.(bool)
if !ok {
return nil, dataMismatchError(encType, encValue)
}
if boolValue {
return math.PaddedBigBytes(common.Big1, 32), nil
}
return math.PaddedBigBytes(common.Big0, 32), nil
case "string":
strVal, ok := encValue.(string)
if !ok {
return nil, dataMismatchError(encType, encValue)
}
return crypto.Keccak256([]byte(strVal)), nil
case "bytes":
bytesValue, ok := encValue.([]byte)
if !ok {
return nil, dataMismatchError(encType, encValue)
}
return crypto.Keccak256(bytesValue), nil
}
if strings.HasPrefix(encType, "bytes") {
lengthStr := strings.TrimPrefix(encType, "bytes")
length, err := strconv.Atoi(lengthStr)
if err != nil {
return nil, fmt.Errorf("invalid size on bytes: %v", lengthStr)
}
if length < 0 || length > 32 {
return nil, fmt.Errorf("invalid size on bytes: %d", length)
}
if byteValue, ok := encValue.(hexutil.Bytes); !ok {
return nil, dataMismatchError(encType, encValue)
} else {
return math.PaddedBigBytes(new(big.Int).SetBytes(byteValue), 32), nil
}
}
if strings.HasPrefix(encType, "int") || strings.HasPrefix(encType, "uint") {
length := 0
if encType == "int" || encType == "uint" {
length = 256
} else {
lengthStr := ""
if strings.HasPrefix(encType, "uint") {
lengthStr = strings.TrimPrefix(encType, "uint")
} else {
lengthStr = strings.TrimPrefix(encType, "int")
}
atoiSize, err := strconv.Atoi(lengthStr)
if err != nil {
return nil, fmt.Errorf("invalid size on integer: %v", lengthStr)
}
length = atoiSize
}
bigIntValue, ok := encValue.(*big.Int)
if bigIntValue.BitLen() > length {
return nil, fmt.Errorf("integer larger than '%v'", encType)
}
if !ok {
return nil, dataMismatchError(encType, encValue)
}
return abi.U256(bigIntValue), nil
}
return nil, fmt.Errorf("unrecognized type '%s'", encType)
}
// dataMismatchError generates an error for a mismatch between
// the provided type and data
func dataMismatchError(encType string, encValue interface{}) error {
return fmt.Errorf("provided data '%v' doesn't match type '%s'", encValue, encType)
}
// EcRecover recovers the address associated with the given sig.
// Only compatible with `text/plain`
func (api *SignerAPI) EcRecover(ctx context.Context, data hexutil.Bytes, sig hexutil.Bytes) (common.Address, error) {
// Returns the address for the Account that was used to create the signature.
//
// Note, this function is compatible with eth_sign and personal_sign. As such it recovers
// the address of:
// hash = keccak256("\x19${byteVersion}Ethereum Signed Message:\n${message length}${message}")
// addr = ecrecover(hash, signature)
//
// Note, the signature must conform to the secp256k1 curve R, S and V values, where
// the V value must be be 27 or 28 for legacy reasons.
//
// https://github.com/ethereum/go-ethereum/wiki/Management-APIs#personal_ecRecover
if len(sig) != 65 {
return common.Address{}, fmt.Errorf("signature must be 65 bytes long")
}
if sig[64] != 27 && sig[64] != 28 {
return common.Address{}, fmt.Errorf("invalid Ethereum signature (V is not 27 or 28)")
}
sig[64] -= 27 // Transform yellow paper V from 27/28 to 0/1
hash := accounts.TextHash(data)
rpk, err := crypto.SigToPub(hash, sig)
if err != nil {
return common.Address{}, err
}
return crypto.PubkeyToAddress(*rpk), nil
}
// UnmarshalValidatorData converts the bytes input to typed data
func UnmarshalValidatorData(data interface{}) (ValidatorData, error) {
raw, ok := data.(map[string]interface{})
if !ok {
return ValidatorData{}, errors.New("validator input is not a map[string]interface{}")
}
addr, ok := raw["address"].(string)
if !ok {
return ValidatorData{}, errors.New("validator address is not sent as a string")
}
addrBytes, err := hexutil.Decode(addr)
if err != nil {
return ValidatorData{}, err
}
if !ok || len(addrBytes) == 0 {
return ValidatorData{}, errors.New("validator address is undefined")
}
message, ok := raw["message"].(string)
if !ok {
return ValidatorData{}, errors.New("message is not sent as a string")
}
messageBytes, err := hexutil.Decode(message)
if err != nil {
return ValidatorData{}, err
}
if !ok || len(messageBytes) == 0 {
return ValidatorData{}, errors.New("message is undefined")
}
return ValidatorData{
Address: common.BytesToAddress(addrBytes),
Message: messageBytes,
}, nil
}
// validate makes sure the types are sound
func (typedData *TypedData) validate() error {
if err := typedData.Types.validate(); err != nil {
return err
}
if err := typedData.Domain.validate(); err != nil {
return err
}
return nil
}
// Map generates a map version of the typed data
func (typedData *TypedData) Map() map[string]interface{} {
dataMap := map[string]interface{}{
"types": typedData.Types,
"domain": typedData.Domain.Map(),
"primaryType": typedData.PrimaryType,
"message": typedData.Message,
}
return dataMap
}
// PrettyPrint generates a nice output to help the users
// of clef present data in their apps
func (typedData *TypedData) PrettyPrint() string {
output := bytes.Buffer{}
formatted := typedData.Format()
for _, item := range formatted {
output.WriteString(fmt.Sprintf("%v\n", item.Pprint(0)))
}
return output.String()
}
// Format returns a representation of typedData, which can be easily displayed by a user-interface
// without in-depth knowledge about 712 rules
func (typedData *TypedData) Format() []*NameValueType {
var nvts []*NameValueType
nvts = append(nvts, &NameValueType{
Name: "EIP712Domain",
Value: typedData.formatData("EIP712Domain", typedData.Domain.Map()),
Typ: "domain",
})
nvts = append(nvts, &NameValueType{
Name: typedData.PrimaryType,
Value: typedData.formatData(typedData.PrimaryType, typedData.Message),
Typ: "primary type",
})
return nvts
}
func (typedData *TypedData) formatData(primaryType string, data map[string]interface{}) []*NameValueType {
var output []*NameValueType
// Add field contents. Structs and arrays have special handlers.
for _, field := range typedData.Types[primaryType] {
encName := field.Name
encValue := data[encName]
item := &NameValueType{
Name: encName,
Typ: field.Type,
}
if field.isArray() {
arrayValue, _ := encValue.([]interface{})
parsedType := field.typeName()
for _, v := range arrayValue {
if typedData.Types[parsedType] != nil {
mapValue, _ := v.(map[string]interface{})
mapOutput := typedData.formatData(parsedType, mapValue)
item.Value = mapOutput
} else {
primitiveOutput := formatPrimitiveValue(field.Type, encValue)
item.Value = primitiveOutput
}
}
} else if typedData.Types[field.Type] != nil {
mapValue, _ := encValue.(map[string]interface{})
mapOutput := typedData.formatData(field.Type, mapValue)
item.Value = mapOutput
} else {
primitiveOutput := formatPrimitiveValue(field.Type, encValue)
item.Value = primitiveOutput
}
output = append(output, item)
}
return output
}
func formatPrimitiveValue(encType string, encValue interface{}) string {
switch encType {
case "address":
stringValue, _ := encValue.(string)
return common.HexToAddress(stringValue).String()
case "bool":
boolValue, _ := encValue.(bool)
return fmt.Sprintf("%t", boolValue)
case "bytes", "string":
return fmt.Sprintf("%s", encValue)
}
if strings.HasPrefix(encType, "bytes") {
return fmt.Sprintf("%s", encValue)
} else if strings.HasPrefix(encType, "uint") || strings.HasPrefix(encType, "int") {
bigIntValue, _ := encValue.(*big.Int)
return fmt.Sprintf("%d (0x%x)", bigIntValue, bigIntValue)
}
return "NA"
}
// NameValueType is a very simple struct with Name, Value and Type. It's meant for simple
// json structures used to communicate signing-info about typed data with the UI
type NameValueType struct {
Name string `json:"name"`
Value interface{} `json:"value"`
Typ string `json:"type"`
}
// Pprint returns a pretty-printed version of nvt
func (nvt *NameValueType) Pprint(depth int) string {
output := bytes.Buffer{}
output.WriteString(strings.Repeat("\u00a0", depth*2))
output.WriteString(fmt.Sprintf("%s [%s]: ", nvt.Name, nvt.Typ))
if nvts, ok := nvt.Value.([]*NameValueType); ok {
output.WriteString("\n")
for _, next := range nvts {
sublevel := next.Pprint(depth + 1)
output.WriteString(sublevel)
}
} else {
output.WriteString(fmt.Sprintf("%s\n", nvt.Value))
}
return output.String()
}
// Validate checks if the types object is conformant to the specs
func (t Types) validate() error {
for typeKey, typeArr := range t {
for _, typeObj := range typeArr {
if typeKey == typeObj.Type {
return fmt.Errorf("type '%s' cannot reference itself", typeObj.Type)
}
if typeObj.isReferenceType() {
if _, exist := t[typeObj.Type]; !exist {
return fmt.Errorf("reference type '%s' is undefined", typeObj.Type)
}
if !typedDataReferenceTypeRegexp.MatchString(typeObj.Type) {
return fmt.Errorf("unknown reference type '%s", typeObj.Type)
}
} else if !isPrimitiveTypeValid(typeObj.Type) {
return fmt.Errorf("unknown type '%s'", typeObj.Type)
}
}
}
return nil
}
// Checks if the primitive value is valid
func isPrimitiveTypeValid(primitiveType string) bool {
if primitiveType == "address" ||
primitiveType == "address[]" ||
primitiveType == "bool" ||
primitiveType == "bool[]" ||
primitiveType == "string" ||
primitiveType == "string[]" {
return true
}
if primitiveType == "bytes" ||
primitiveType == "bytes[]" ||
primitiveType == "bytes1" ||
primitiveType == "bytes1[]" ||
primitiveType == "bytes2" ||
primitiveType == "bytes2[]" ||
primitiveType == "bytes3" ||
primitiveType == "bytes3[]" ||
primitiveType == "bytes4" ||
primitiveType == "bytes4[]" ||
primitiveType == "bytes5" ||
primitiveType == "bytes5[]" ||
primitiveType == "bytes6" ||
primitiveType == "bytes6[]" ||
primitiveType == "bytes7" ||
primitiveType == "bytes7[]" ||
primitiveType == "bytes8" ||
primitiveType == "bytes8[]" ||
primitiveType == "bytes9" ||
primitiveType == "bytes9[]" ||
primitiveType == "bytes10" ||
primitiveType == "bytes10[]" ||
primitiveType == "bytes11" ||
primitiveType == "bytes11[]" ||
primitiveType == "bytes12" ||
primitiveType == "bytes12[]" ||
primitiveType == "bytes13" ||
primitiveType == "bytes13[]" ||
primitiveType == "bytes14" ||
primitiveType == "bytes14[]" ||
primitiveType == "bytes15" ||
primitiveType == "bytes15[]" ||
primitiveType == "bytes16" ||
primitiveType == "bytes16[]" ||
primitiveType == "bytes17" ||
primitiveType == "bytes17[]" ||
primitiveType == "bytes18" ||
primitiveType == "bytes18[]" ||
primitiveType == "bytes19" ||
primitiveType == "bytes19[]" ||
primitiveType == "bytes20" ||
primitiveType == "bytes20[]" ||
primitiveType == "bytes21" ||
primitiveType == "bytes21[]" ||
primitiveType == "bytes22" ||
primitiveType == "bytes22[]" ||
primitiveType == "bytes23" ||
primitiveType == "bytes23[]" ||
primitiveType == "bytes24" ||
primitiveType == "bytes24[]" ||
primitiveType == "bytes25" ||
primitiveType == "bytes25[]" ||
primitiveType == "bytes26" ||
primitiveType == "bytes26[]" ||
primitiveType == "bytes27" ||
primitiveType == "bytes27[]" ||
primitiveType == "bytes28" ||
primitiveType == "bytes28[]" ||
primitiveType == "bytes29" ||
primitiveType == "bytes29[]" ||
primitiveType == "bytes30" ||
primitiveType == "bytes30[]" ||
primitiveType == "bytes31" ||
primitiveType == "bytes31[]" {
return true
}
if primitiveType == "int" ||
primitiveType == "int[]" ||
primitiveType == "int8" ||
primitiveType == "int8[]" ||
primitiveType == "int16" ||
primitiveType == "int16[]" ||
primitiveType == "int32" ||
primitiveType == "int32[]" ||
primitiveType == "int64" ||
primitiveType == "int64[]" ||
primitiveType == "int128" ||
primitiveType == "int128[]" ||
primitiveType == "int256" ||
primitiveType == "int256[]" {
return true
}
if primitiveType == "uint" ||
primitiveType == "uint[]" ||
primitiveType == "uint8" ||
primitiveType == "uint8[]" ||
primitiveType == "uint16" ||
primitiveType == "uint16[]" ||
primitiveType == "uint32" ||
primitiveType == "uint32[]" ||
primitiveType == "uint64" ||
primitiveType == "uint64[]" ||
primitiveType == "uint128" ||
primitiveType == "uint128[]" ||
primitiveType == "uint256" ||
primitiveType == "uint256[]" {
return true
}
return false
}
// validate checks if the given domain is valid, i.e. contains at least
// the minimum viable keys and values
func (domain *TypedDataDomain) validate() error {
if domain.ChainId == big.NewInt(0) {
return errors.New("chainId must be specified according to EIP-155")
}
if len(domain.Name) == 0 && len(domain.Version) == 0 && len(domain.VerifyingContract) == 0 && len(domain.Salt) == 0 {
return errors.New("domain is undefined")
}
return nil
}
// Map is a helper function to generate a map version of the domain
func (domain *TypedDataDomain) Map() map[string]interface{} {
dataMap := map[string]interface{}{
"chainId": domain.ChainId,
}
if len(domain.Name) > 0 {
dataMap["name"] = domain.Name
}
if len(domain.Version) > 0 {
dataMap["version"] = domain.Version
}
if len(domain.VerifyingContract) > 0 {
dataMap["verifyingContract"] = domain.VerifyingContract
}
if len(domain.Salt) > 0 {
dataMap["salt"] = domain.Salt
}
return dataMap
}

View File

@ -0,0 +1,774 @@
// Copyright 2018 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
//
package core
import (
"context"
"encoding/json"
"fmt"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
)
var typesStandard = Types{
"EIP712Domain": {
{
Name: "name",
Type: "string",
},
{
Name: "version",
Type: "string",
},
{
Name: "chainId",
Type: "uint256",
},
{
Name: "verifyingContract",
Type: "address",
},
},
"Person": {
{
Name: "name",
Type: "string",
},
{
Name: "wallet",
Type: "address",
},
},
"Mail": {
{
Name: "from",
Type: "Person",
},
{
Name: "to",
Type: "Person",
},
{
Name: "contents",
Type: "string",
},
},
}
var jsonTypedData = `
{
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Person": [
{
"name": "name",
"type": "string"
},
{
"name": "test",
"type": "uint8"
},
{
"name": "wallet",
"type": "address"
}
],
"Mail": [
{
"name": "from",
"type": "Person"
},
{
"name": "to",
"type": "Person"
},
{
"name": "contents",
"type": "string"
}
]
},
"primaryType": "Mail",
"domain": {
"name": "Ether Mail",
"version": "1",
"chainId": 1,
"verifyingContract": "0xCCCcccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
},
"message": {
"from": {
"name": "Cow",
"test": 3,
"wallet": "0xcD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"
},
"to": {
"name": "Bob",
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"
},
"contents": "Hello, Bob!"
}
}
`
const primaryType = "Mail"
var domainStandard = TypedDataDomain{
"Ether Mail",
"1",
big.NewInt(1),
"0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC",
"",
}
var messageStandard = map[string]interface{}{
"from": map[string]interface{}{
"name": "Cow",
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826",
},
"to": map[string]interface{}{
"name": "Bob",
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB",
},
"contents": "Hello, Bob!",
}
var typedData = TypedData{
Types: typesStandard,
PrimaryType: primaryType,
Domain: domainStandard,
Message: messageStandard,
}
func TestSignData(t *testing.T) {
api, control := setup(t)
//Create two accounts
createAccount(control, api, t)
createAccount(control, api, t)
control <- "1"
list, err := api.List(context.Background())
if err != nil {
t.Fatal(err)
}
a := common.NewMixedcaseAddress(list[0])
control <- "Y"
control <- "wrongpassword"
signature, err := api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
if signature != nil {
t.Errorf("Expected nil-data, got %x", signature)
}
if err != keystore.ErrDecrypt {
t.Errorf("Expected ErrLocked! '%v'", err)
}
control <- "No way"
signature, err = api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
if signature != nil {
t.Errorf("Expected nil-data, got %x", signature)
}
if err != ErrRequestDenied {
t.Errorf("Expected ErrRequestDenied! '%v'", err)
}
// text/plain
control <- "Y"
control <- "a_long_password"
signature, err = api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
if err != nil {
t.Fatal(err)
}
if signature == nil || len(signature) != 65 {
t.Errorf("Expected 65 byte signature (got %d bytes)", len(signature))
}
// data/typed
control <- "Y"
control <- "a_long_password"
signature, err = api.SignTypedData(context.Background(), a, typedData)
if err != nil {
t.Fatal(err)
}
if signature == nil || len(signature) != 65 {
t.Errorf("Expected 65 byte signature (got %d bytes)", len(signature))
}
}
func TestHashStruct(t *testing.T) {
hash, err := typedData.HashStruct(typedData.PrimaryType, typedData.Message)
if err != nil {
t.Fatal(err)
}
mainHash := fmt.Sprintf("0x%s", common.Bytes2Hex(hash))
if mainHash != "0xc52c0ee5d84264471806290a3f2c4cecfc5490626bf912d01f240d7a274b371e" {
t.Errorf("Expected different hashStruct result (got %s)", mainHash)
}
hash, err = typedData.HashStruct("EIP712Domain", typedData.Domain.Map())
if err != nil {
t.Error(err)
}
domainHash := fmt.Sprintf("0x%s", common.Bytes2Hex(hash))
if domainHash != "0xf2cee375fa42b42143804025fc449deafd50cc031ca257e0b194a650a912090f" {
t.Errorf("Expected different domain hashStruct result (got %s)", domainHash)
}
}
func TestEncodeType(t *testing.T) {
domainTypeEncoding := string(typedData.EncodeType("EIP712Domain"))
if domainTypeEncoding != "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)" {
t.Errorf("Expected different encodeType result (got %s)", domainTypeEncoding)
}
mailTypeEncoding := string(typedData.EncodeType(typedData.PrimaryType))
if mailTypeEncoding != "Mail(Person from,Person to,string contents)Person(string name,address wallet)" {
t.Errorf("Expected different encodeType result (got %s)", mailTypeEncoding)
}
}
func TestTypeHash(t *testing.T) {
mailTypeHash := fmt.Sprintf("0x%s", common.Bytes2Hex(typedData.TypeHash(typedData.PrimaryType)))
if mailTypeHash != "0xa0cedeb2dc280ba39b857546d74f5549c3a1d7bdc2dd96bf881f76108e23dac2" {
t.Errorf("Expected different typeHash result (got %s)", mailTypeHash)
}
}
func TestEncodeData(t *testing.T) {
hash, err := typedData.EncodeData(typedData.PrimaryType, typedData.Message, 0)
if err != nil {
t.Fatal(err)
}
dataEncoding := fmt.Sprintf("0x%s", common.Bytes2Hex(hash))
if dataEncoding != "0xa0cedeb2dc280ba39b857546d74f5549c3a1d7bdc2dd96bf881f76108e23dac2fc71e5fa27ff56c350aa531bc129ebdf613b772b6604664f5d8dbe21b85eb0c8cd54f074a4af31b4411ff6a60c9719dbd559c221c8ac3492d9d872b041d703d1b5aadf3154a261abdd9086fc627b61efca26ae5702701d05cd2305f7c52a2fc8" {
t.Errorf("Expected different encodeData result (got %s)", dataEncoding)
}
}
func TestMalformedDomainkeys(t *testing.T) {
// Verifies that malformed domain keys are properly caught:
//{
// "name": "Ether Mail",
// "version": "1",
// "chainId": 1,
// "vxerifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
//}
jsonTypedData := `
{
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Person": [
{
"name": "name",
"type": "string"
},
{
"name": "wallet",
"type": "address"
}
],
"Mail": [
{
"name": "from",
"type": "Person"
},
{
"name": "to",
"type": "Person"
},
{
"name": "contents",
"type": "string"
}
]
},
"primaryType": "Mail",
"domain": {
"name": "Ether Mail",
"version": "1",
"chainId": 1,
"vxerifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
},
"message": {
"from": {
"name": "Cow",
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"
},
"to": {
"name": "Bob",
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"
},
"contents": "Hello, Bob!"
}
}
`
var malformedDomainTypedData TypedData
err := json.Unmarshal([]byte(jsonTypedData), &malformedDomainTypedData)
if err != nil {
t.Fatalf("unmarshalling failed '%v'", err)
}
_, err = malformedDomainTypedData.HashStruct("EIP712Domain", malformedDomainTypedData.Domain.Map())
if err == nil || err.Error() != "provided data '<nil>' doesn't match type 'address'" {
t.Errorf("Expected `provided data '<nil>' doesn't match type 'address'`, got '%v'", err)
}
}
func TestMalformedTypesAndExtradata(t *testing.T) {
// Verifies several quirks
// 1. Using dynamic types and only validating the prefix:
//{
// "name": "chainId",
// "type": "uint256 ... and now for something completely different"
//}
// 2. Extra data in message:
//{
// "blahonga": "zonk bonk"
//}
jsonTypedData := `
{
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256 ... and now for something completely different"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Person": [
{
"name": "name",
"type": "string"
},
{
"name": "wallet",
"type": "address"
}
],
"Mail": [
{
"name": "from",
"type": "Person"
},
{
"name": "to",
"type": "Person"
},
{
"name": "contents",
"type": "string"
}
]
},
"primaryType": "Mail",
"domain": {
"name": "Ether Mail",
"version": "1",
"chainId": 1,
"verifyingContract": "0xCCCcccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
},
"message": {
"from": {
"name": "Cow",
"wallet": "0xcD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"
},
"to": {
"name": "Bob",
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"
},
"contents": "Hello, Bob!"
}
}
`
var malformedTypedData TypedData
err := json.Unmarshal([]byte(jsonTypedData), &malformedTypedData)
if err != nil {
t.Fatalf("unmarshalling failed '%v'", err)
}
malformedTypedData.Types["EIP712Domain"][2].Type = "uint256"
malformedTypedData.Message["blahonga"] = "zonk bonk"
_, err = malformedTypedData.HashStruct(malformedTypedData.PrimaryType, malformedTypedData.Message)
if err == nil || err.Error() != "there is extra data provided in the message" {
t.Errorf("Expected `there is extra data provided in the message`, got '%v'", err)
}
}
func TestTypeMismatch(t *testing.T) {
// Verifies that:
// 1. Mismatches between the given type and data, i.e. `Person` and
// the data item is a string, are properly caught:
//{
// "name": "contents",
// "type": "Person"
//},
//{
// "contents": "Hello, Bob!" <-- string not "Person"
//}
// 2. Nonexistent types are properly caught:
//{
// "name": "contents",
// "type": "Blahonga"
//}
jsonTypedData := `
{
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Person": [
{
"name": "name",
"type": "string"
},
{
"name": "wallet",
"type": "address"
}
],
"Mail": [
{
"name": "from",
"type": "Person"
},
{
"name": "to",
"type": "Person"
},
{
"name": "contents",
"type": "Person"
}
]
},
"primaryType": "Mail",
"domain": {
"name": "Ether Mail",
"version": "1",
"chainId": 1,
"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
},
"message": {
"from": {
"name": "Cow",
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"
},
"to": {
"name": "Bob",
"wallet": "0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB"
},
"contents": "Hello, Bob!"
}
}
`
var mismatchTypedData TypedData
err := json.Unmarshal([]byte(jsonTypedData), &mismatchTypedData)
if err != nil {
t.Fatalf("unmarshalling failed '%v'", err)
}
_, err = mismatchTypedData.HashStruct(mismatchTypedData.PrimaryType, mismatchTypedData.Message)
if err.Error() != "provided data 'Hello, Bob!' doesn't match type 'Person'" {
t.Errorf("Expected `provided data 'Hello, Bob!' doesn't match type 'Person'`, got '%v'", err)
}
mismatchTypedData.Types["Mail"][2].Type = "Blahonga"
_, err = mismatchTypedData.HashStruct(mismatchTypedData.PrimaryType, mismatchTypedData.Message)
if err == nil || err.Error() != "reference type 'Blahonga' is undefined" {
t.Fatalf("Expected `reference type 'Blahonga' is undefined`, got '%v'", err)
}
}
func TestTypeOverflow(t *testing.T) {
// Verifies data that doesn't fit into it:
//{
// "test": 65536 <-- test defined as uint8
//}
var overflowTypedData TypedData
err := json.Unmarshal([]byte(jsonTypedData), &overflowTypedData)
if err != nil {
t.Fatalf("unmarshalling failed '%v'", err)
}
// Set test to something outside uint8
(overflowTypedData.Message["from"]).(map[string]interface{})["test"] = big.NewInt(65536)
_, err = overflowTypedData.HashStruct(overflowTypedData.PrimaryType, overflowTypedData.Message)
if err == nil || err.Error() != "integer larger than 'uint8'" {
t.Fatalf("Expected `integer larger than 'uint8'`, got '%v'", err)
}
(overflowTypedData.Message["from"]).(map[string]interface{})["test"] = big.NewInt(3)
(overflowTypedData.Message["to"]).(map[string]interface{})["test"] = big.NewInt(4)
_, err = overflowTypedData.HashStruct(overflowTypedData.PrimaryType, overflowTypedData.Message)
if err != nil {
t.Fatalf("Expected no err, got '%v'", err)
}
}
func TestArray(t *testing.T) {
// Makes sure that arrays work fine
//{
// "type": "address[]"
//},
//{
// "type": "string[]"
//},
//{
// "type": "uint16[]",
//}
jsonTypedData := `
{
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Foo": [
{
"name": "bar",
"type": "address[]"
}
]
},
"primaryType": "Foo",
"domain": {
"name": "Lorem",
"version": "1",
"chainId": 1,
"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
},
"message": {
"bar": [
"0x0000000000000000000000000000000000000001",
"0x0000000000000000000000000000000000000002",
"0x0000000000000000000000000000000000000003"
]
}
}
`
var arrayTypedData TypedData
err := json.Unmarshal([]byte(jsonTypedData), &arrayTypedData)
if err != nil {
t.Fatalf("unmarshalling failed '%v'", err)
}
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message)
if err != nil {
t.Fatalf("Expected no err, got '%v'", err)
}
// Change array to string
arrayTypedData.Types["Foo"][0].Type = "string[]"
arrayTypedData.Message["bar"] = []interface{}{
"lorem",
"ipsum",
"dolores",
}
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message)
if err != nil {
t.Fatalf("Expected no err, got '%v'", err)
}
// Change array to uint
arrayTypedData.Types["Foo"][0].Type = "uint[]"
arrayTypedData.Message["bar"] = []interface{}{
big.NewInt(1955),
big.NewInt(108),
big.NewInt(44010),
}
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message)
if err != nil {
t.Fatalf("Expected no err, got '%v'", err)
}
// Should not work with fixed-size arrays
arrayTypedData.Types["Foo"][0].Type = "uint[3]"
_, err = arrayTypedData.HashStruct(arrayTypedData.PrimaryType, arrayTypedData.Message)
if err == nil || err.Error() != "unknown type 'uint[3]'" {
t.Fatalf("Expected `unknown type 'uint[3]'`, got '%v'", err)
}
}
func TestCustomTypeAsArray(t *testing.T) {
var jsonTypedData = `
{
"types": {
"EIP712Domain": [
{
"name": "name",
"type": "string"
},
{
"name": "version",
"type": "string"
},
{
"name": "chainId",
"type": "uint256"
},
{
"name": "verifyingContract",
"type": "address"
}
],
"Person": [
{
"name": "name",
"type": "string"
},
{
"name": "wallet",
"type": "address"
}
],
"Person[]": [
{
"name": "baz",
"type": "string"
}
],
"Mail": [
{
"name": "from",
"type": "Person"
},
{
"name": "to",
"type": "Person[]"
},
{
"name": "contents",
"type": "string"
}
]
},
"primaryType": "Mail",
"domain": {
"name": "Ether Mail",
"version": "1",
"chainId": 1,
"verifyingContract": "0xCcCCccccCCCCcCCCCCCcCcCccCcCCCcCcccccccC"
},
"message": {
"from": {
"name": "Cow",
"wallet": "0xCD2a3d9F938E13CD947Ec05AbC7FE734Df8DD826"
},
"to": {"baz": "foo"},
"contents": "Hello, Bob!"
}
}
`
var malformedTypedData TypedData
err := json.Unmarshal([]byte(jsonTypedData), &malformedTypedData)
if err != nil {
t.Fatalf("unmarshalling failed '%v'", err)
}
_, err = malformedTypedData.HashStruct("EIP712Domain", malformedTypedData.Domain.Map())
if err != nil {
t.Errorf("Expected no error, got '%v'", err)
}
}
func TestFormatter(t *testing.T) {
var d TypedData
err := json.Unmarshal([]byte(jsonTypedData), &d)
if err != nil {
t.Fatalf("unmarshalling failed '%v'", err)
}
formatted := d.Format()
for _, item := range formatted {
fmt.Printf("'%v'\n", item.Pprint(0))
}
j, _ := json.Marshal(formatted)
fmt.Printf("'%v'\n", string(j))
}

View File

@ -19,9 +19,8 @@ package core
import ( import (
"encoding/json" "encoding/json"
"fmt" "fmt"
"strings"
"math/big" "math/big"
"strings"
"github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"

View File

@ -624,7 +624,7 @@ func TestSignData(t *testing.T) {
function ApproveSignData(r){ function ApproveSignData(r){
if( r.address.toLowerCase() == "0x694267f14675d7e1b9494fd8d72fefe1755710fa") if( r.address.toLowerCase() == "0x694267f14675d7e1b9494fd8d72fefe1755710fa")
{ {
if(r.message.indexOf("bazonk") >= 0){ if(r.message[0].value.indexOf("bazonk") >= 0){
return "Approve" return "Approve"
} }
return "Reject" return "Reject"
@ -636,18 +636,25 @@ function ApproveSignData(r){
t.Errorf("Couldn't create evaluator %v", err) t.Errorf("Couldn't create evaluator %v", err)
return return
} }
message := []byte("baz bazonk foo") message := "baz bazonk foo"
hash, msg := core.SignHash(message) hash, rawdata := accounts.TextAndHash([]byte(message))
raw := hexutil.Bytes(message)
addr, _ := mixAddr("0x694267f14675d7e1b9494fd8d72fefe1755710fa") addr, _ := mixAddr("0x694267f14675d7e1b9494fd8d72fefe1755710fa")
fmt.Printf("address %v %v\n", addr.String(), addr.Original()) fmt.Printf("address %v %v\n", addr.String(), addr.Original())
nvt := []*core.NameValueType{
{
Name: "message",
Typ: "text/plain",
Value: message,
},
}
resp, err := r.ApproveSignData(&core.SignDataRequest{ resp, err := r.ApproveSignData(&core.SignDataRequest{
Address: *addr, Address: *addr,
Message: msg, Message: nvt,
Hash: hash, Hash: hash,
Meta: core.Metadata{Remote: "remoteip", Local: "localip", Scheme: "inproc"}, Meta: core.Metadata{Remote: "remoteip", Local: "localip", Scheme: "inproc"},
Rawdata: raw, Rawdata: []byte(rawdata),
}) })
if err != nil { if err != nil {
t.Fatalf("Unexpected error %v", err) t.Fatalf("Unexpected error %v", err)