add randomUint256 precompile (#210)

core/vm/contracts_suave.go

@@ -3,8 +3,10 @@ package vm
 import (
 	"bytes"
 	"context"
+	"crypto/rand"
 	"fmt"
 	"io"
+	"math/big"
 	"net/http"
 	"net/url"
 	"strings"
@@ -38,6 +40,16 @@ func (b *suaveRuntime) confidentialInputs() ([]byte, error) {
 	return b.contextGet("confidentialInputs")
 }
 
+func (b *suaveRuntime) randomUint256() (*big.Int, error) {
+	maxU256 := new(big.Int)
+	maxU256.SetString("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 16)
+	num, err := rand.Int(rand.Reader, maxU256)
+	if err != nil {
+		return nil, err
+	}
+	return num, nil
+}
+
 /* Confidential store precompiles */
 
 func (b *suaveRuntime) confidentialStore(dataId types.DataId, key string, data []byte) error {

core/vm/contracts_suave_runtime_adapter_test.go

@@ -1,6 +1,7 @@
 package vm
 
 import (
+	"math/big"
 	"testing"
 
 	"github.com/ethereum/go-ethereum/accounts/abi"
@@ -91,6 +92,10 @@ func (m *mockRuntime) contextGet(key string) ([]byte, error) {
 	return nil, nil
 }
 
+func (m *mockRuntime) randomUint256() (*big.Int, error) {
+	return new(big.Int).SetUint64(9001), nil
+}
+
 func TestRuntimeAdapter(t *testing.T) {
 	adapter := &SuaveRuntimeAdapter{
 		impl: &mockRuntime{},

suave/artifacts/SuaveLib.json

@@ -1 +1 @@
-[{"type":"error","name":"PeekerReverted","inputs":[{"name":"addr","type":"address"},{"name":"err","type":"bytes"}]},{"type":"function","name":"buildEthBlock","inputs":[{"name":"blockArgs","type":"tuple","internalType":"struct Suave.BuildBlockArgs","components":[{"name":"slot","type":"uint64","internalType":"uint64"},{"name":"proposerPubkey","type":"bytes","internalType":"bytes"},{"name":"parent","type":"bytes32","internalType":"bytes32"},{"name":"timestamp","type":"uint64","internalType":"uint64"},{"name":"feeRecipient","type":"address","internalType":"address"},{"name":"gasLimit","type":"uint64","internalType":"uint64"},{"name":"random","type":"bytes32","internalType":"bytes32"},{"name":"withdrawals","type":"tuple[]","internalType":"struct Suave.Withdrawal[]","components":[{"name":"index","type":"uint64","internalType":"uint64"},{"name":"validator","type":"uint64","internalType":"uint64"},{"name":"Address","type":"address","internalType":"address"},{"name":"amount","type":"uint64","internalType":"uint64"}]},{"name":"extra","type":"bytes","internalType":"bytes"},{"name":"beaconRoot","type":"bytes32","internalType":"bytes32"},{"name":"fillPending","type":"bool","internalType":"bool"}]},{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"namespace","type":"string","internalType":"string"}],"outputs":[{"name":"blockBid","type":"bytes","internalType":"bytes"},{"name":"executionPayload","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"confidentialInputs","outputs":[{"name":"confindentialData","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"confidentialRetrieve","inputs":[{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"key","type":"string","internalType":"string"}],"outputs":[{"name":"value","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"confidentialStore","inputs":[{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"key","type":"string","internalType":"string"},{"name":"value","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"contextGet","inputs":[{"name":"key","type":"string","internalType":"string"}],"outputs":[{"name":"value","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"doHTTPRequest","inputs":[{"name":"request","type":"tuple","internalType":"struct Suave.HttpRequest","components":[{"name":"url","type":"string","internalType":"string"},{"name":"method","type":"string","internalType":"string"},{"name":"headers","type":"string[]","internalType":"string[]"},{"name":"body","type":"bytes","internalType":"bytes"},{"name":"withFlashbotsSignature","type":"bool","internalType":"bool"}]}],"outputs":[{"name":"httpResponse","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"ethcall","inputs":[{"name":"contractAddr","type":"address","internalType":"address"},{"name":"input1","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"callOutput","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"extractHint","inputs":[{"name":"bundleData","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"hints","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"fetchDataRecords","inputs":[{"name":"cond","type":"uint64","internalType":"uint64"},{"name":"namespace","type":"string","internalType":"string"}],"outputs":[{"name":"dataRecords","type":"tuple[]","internalType":"struct Suave.DataRecord[]","components":[{"name":"id","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"salt","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"decryptionCondition","type":"uint64","internalType":"uint64"},{"name":"allowedPeekers","type":"address[]","internalType":"address[]"},{"name":"allowedStores","type":"address[]","internalType":"address[]"},{"name":"version","type":"string","internalType":"string"}]}]},{"type":"function","name":"fillMevShareBundle","inputs":[{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"}],"outputs":[{"name":"encodedBundle","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"newBuilder","outputs":[{"name":"sessionid","type":"string","internalType":"string"}]},{"type":"function","name":"newDataRecord","inputs":[{"name":"decryptionCondition","type":"uint64","internalType":"uint64"},{"name":"allowedPeekers","type":"address[]","internalType":"address[]"},{"name":"allowedStores","type":"address[]","internalType":"address[]"},{"name":"dataType","type":"string","internalType":"string"}],"outputs":[{"name":"dataRecord","type":"tuple","internalType":"struct Suave.DataRecord","components":[{"name":"id","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"salt","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"decryptionCondition","type":"uint64","internalType":"uint64"},{"name":"allowedPeekers","type":"address[]","internalType":"address[]"},{"name":"allowedStores","type":"address[]","internalType":"address[]"},{"name":"version","type":"string","internalType":"string"}]}]},{"type":"function","name":"privateKeyGen","inputs":[{"name":"crypto","type":"uint8","internalType":"struct Suave.CryptoSignature"}],"outputs":[{"name":"privateKey","type":"string","internalType":"string"}]},{"type":"function","name":"signEthTransaction","inputs":[{"name":"txn","type":"bytes","internalType":"bytes"},{"name":"chainId","type":"string","internalType":"string"},{"name":"signingKey","type":"string","internalType":"string"}],"outputs":[{"name":"signedTxn","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"signMessage","inputs":[{"name":"digest","type":"bytes","internalType":"bytes"},{"name":"crypto","type":"uint8","internalType":"struct Suave.CryptoSignature"},{"name":"signingKey","type":"string","internalType":"string"}],"outputs":[{"name":"signature","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"simulateBundle","inputs":[{"name":"bundleData","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"effectiveGasPrice","type":"uint64","internalType":"uint64"}]},{"type":"function","name":"simulateTransaction","inputs":[{"name":"sessionid","type":"string","internalType":"string"},{"name":"txn","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"simulationResult","type":"tuple","internalType":"struct Suave.SimulateTransactionResult","components":[{"name":"egp","type":"uint64","internalType":"uint64"},{"name":"logs","type":"tuple[]","internalType":"struct Suave.SimulatedLog[]","components":[{"name":"data","type":"bytes","internalType":"bytes"},{"name":"addr","type":"address","internalType":"address"},{"name":"topics","type":"bytes32[]","internalType":"bytes32[]"}]},{"name":"success","type":"bool","internalType":"bool"},{"name":"error","type":"string","internalType":"string"}]}]},{"type":"function","name":"submitBundleJsonRPC","inputs":[{"name":"url","type":"string","internalType":"string"},{"name":"method","type":"string","internalType":"string"},{"name":"params","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"errorMessage","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"submitEthBlockToRelay","inputs":[{"name":"relayUrl","type":"string","internalType":"string"},{"name":"builderBid","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"blockBid","type":"bytes","internalType":"bytes"}]}]
+[{"type":"error","name":"PeekerReverted","inputs":[{"name":"addr","type":"address"},{"name":"err","type":"bytes"}]},{"type":"function","name":"buildEthBlock","inputs":[{"name":"blockArgs","type":"tuple","internalType":"struct Suave.BuildBlockArgs","components":[{"name":"slot","type":"uint64","internalType":"uint64"},{"name":"proposerPubkey","type":"bytes","internalType":"bytes"},{"name":"parent","type":"bytes32","internalType":"bytes32"},{"name":"timestamp","type":"uint64","internalType":"uint64"},{"name":"feeRecipient","type":"address","internalType":"address"},{"name":"gasLimit","type":"uint64","internalType":"uint64"},{"name":"random","type":"bytes32","internalType":"bytes32"},{"name":"withdrawals","type":"tuple[]","internalType":"struct Suave.Withdrawal[]","components":[{"name":"index","type":"uint64","internalType":"uint64"},{"name":"validator","type":"uint64","internalType":"uint64"},{"name":"Address","type":"address","internalType":"address"},{"name":"amount","type":"uint64","internalType":"uint64"}]},{"name":"extra","type":"bytes","internalType":"bytes"},{"name":"beaconRoot","type":"bytes32","internalType":"bytes32"},{"name":"fillPending","type":"bool","internalType":"bool"}]},{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"namespace","type":"string","internalType":"string"}],"outputs":[{"name":"blockBid","type":"bytes","internalType":"bytes"},{"name":"executionPayload","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"confidentialInputs","outputs":[{"name":"confindentialData","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"confidentialRetrieve","inputs":[{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"key","type":"string","internalType":"string"}],"outputs":[{"name":"value","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"confidentialStore","inputs":[{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"key","type":"string","internalType":"string"},{"name":"value","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"contextGet","inputs":[{"name":"key","type":"string","internalType":"string"}],"outputs":[{"name":"value","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"doHTTPRequest","inputs":[{"name":"request","type":"tuple","internalType":"struct Suave.HttpRequest","components":[{"name":"url","type":"string","internalType":"string"},{"name":"method","type":"string","internalType":"string"},{"name":"headers","type":"string[]","internalType":"string[]"},{"name":"body","type":"bytes","internalType":"bytes"},{"name":"withFlashbotsSignature","type":"bool","internalType":"bool"}]}],"outputs":[{"name":"httpResponse","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"ethcall","inputs":[{"name":"contractAddr","type":"address","internalType":"address"},{"name":"input1","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"callOutput","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"extractHint","inputs":[{"name":"bundleData","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"hints","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"fetchDataRecords","inputs":[{"name":"cond","type":"uint64","internalType":"uint64"},{"name":"namespace","type":"string","internalType":"string"}],"outputs":[{"name":"dataRecords","type":"tuple[]","internalType":"struct Suave.DataRecord[]","components":[{"name":"id","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"salt","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"decryptionCondition","type":"uint64","internalType":"uint64"},{"name":"allowedPeekers","type":"address[]","internalType":"address[]"},{"name":"allowedStores","type":"address[]","internalType":"address[]"},{"name":"version","type":"string","internalType":"string"}]}]},{"type":"function","name":"fillMevShareBundle","inputs":[{"name":"dataId","type":"bytes16","internalType":"struct Suave.DataId"}],"outputs":[{"name":"encodedBundle","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"newBuilder","outputs":[{"name":"sessionid","type":"string","internalType":"string"}]},{"type":"function","name":"newDataRecord","inputs":[{"name":"decryptionCondition","type":"uint64","internalType":"uint64"},{"name":"allowedPeekers","type":"address[]","internalType":"address[]"},{"name":"allowedStores","type":"address[]","internalType":"address[]"},{"name":"dataType","type":"string","internalType":"string"}],"outputs":[{"name":"dataRecord","type":"tuple","internalType":"struct Suave.DataRecord","components":[{"name":"id","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"salt","type":"bytes16","internalType":"struct Suave.DataId"},{"name":"decryptionCondition","type":"uint64","internalType":"uint64"},{"name":"allowedPeekers","type":"address[]","internalType":"address[]"},{"name":"allowedStores","type":"address[]","internalType":"address[]"},{"name":"version","type":"string","internalType":"string"}]}]},{"type":"function","name":"privateKeyGen","inputs":[{"name":"crypto","type":"uint8","internalType":"struct Suave.CryptoSignature"}],"outputs":[{"name":"privateKey","type":"string","internalType":"string"}]},{"type":"function","name":"randomUint256","outputs":[{"name":"value","type":"uint256","internalType":"uint256"}]},{"type":"function","name":"signEthTransaction","inputs":[{"name":"txn","type":"bytes","internalType":"bytes"},{"name":"chainId","type":"string","internalType":"string"},{"name":"signingKey","type":"string","internalType":"string"}],"outputs":[{"name":"signedTxn","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"signMessage","inputs":[{"name":"digest","type":"bytes","internalType":"bytes"},{"name":"crypto","type":"uint8","internalType":"struct Suave.CryptoSignature"},{"name":"signingKey","type":"string","internalType":"string"}],"outputs":[{"name":"signature","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"simulateBundle","inputs":[{"name":"bundleData","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"effectiveGasPrice","type":"uint64","internalType":"uint64"}]},{"type":"function","name":"simulateTransaction","inputs":[{"name":"sessionid","type":"string","internalType":"string"},{"name":"txn","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"simulationResult","type":"tuple","internalType":"struct Suave.SimulateTransactionResult","components":[{"name":"egp","type":"uint64","internalType":"uint64"},{"name":"logs","type":"tuple[]","internalType":"struct Suave.SimulatedLog[]","components":[{"name":"data","type":"bytes","internalType":"bytes"},{"name":"addr","type":"address","internalType":"address"},{"name":"topics","type":"bytes32[]","internalType":"bytes32[]"}]},{"name":"success","type":"bool","internalType":"bool"},{"name":"error","type":"string","internalType":"string"}]}]},{"type":"function","name":"submitBundleJsonRPC","inputs":[{"name":"url","type":"string","internalType":"string"},{"name":"method","type":"string","internalType":"string"},{"name":"params","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"errorMessage","type":"bytes","internalType":"bytes"}]},{"type":"function","name":"submitEthBlockToRelay","inputs":[{"name":"relayUrl","type":"string","internalType":"string"},{"name":"builderBid","type":"bytes","internalType":"bytes"}],"outputs":[{"name":"blockBid","type":"bytes","internalType":"bytes"}]}]