add precompiled contract to get info from Algorand chain

core/vm/algorand/input.go

@@ -0,0 +1,114 @@
+// Copyright 2023 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package algorand
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+)
+
+type CmdType = uint8
+
+const (
+	// AccountCmd is the type of the command to get account information.
+	AccountCmd CmdType = iota
+)
+
+// Input is the interface for the input of the Algorand precompiled contract.
+type Input interface {
+	GetCmdType() CmdType  // GetCmdType returns the command type.
+	GetFieldName() string // GetFieldName returns the name of the field to get.
+}
+
+// AccountInput is the input for the command to get account information.
+type AccountInput struct {
+	Cmd       CmdType // Command type.
+	FieldName string  // Name of the field to get.
+	Address   string  // Address of the account.
+}
+
+// GetCmdType returns the command type.
+func (input *AccountInput) GetCmdType() CmdType {
+	return input.Cmd
+}
+
+// GetFieldName returns the name of the field to get.
+func (input *AccountInput) GetFieldName() string {
+	return input.FieldName
+}
+
+// getCmdTypeFromRawInput gets the command type from the raw input.
+func getCmdTypeFromRawInput(inputBytes []byte) (CmdType, error) {
+	cmd := new(CmdType)
+	err := unpack(inputBytes, cmd)
+	if err != nil {
+		return 0, err
+	}
+	return *cmd, nil
+}
+
+// UnpackInput decodes the raw input into the input of the Algorand precompiled contract.
+func UnpackInput(inputBytes []byte) (Input, error) {
+	cmd, err := getCmdTypeFromRawInput(inputBytes)
+	if err != nil {
+		return nil, err
+	}
+	switch cmd {
+	case AccountCmd:
+		input := new(AccountInput)
+		err = unpack(inputBytes, input)
+		if err != nil {
+			return nil, err
+		}
+		return input, nil
+	default:
+		return nil, fmt.Errorf("unknown command type: %d", cmd)
+	}
+}
+
+// abiType returns the ABI of the given name and type.
+func abiType(name string, typ reflect.Type) string {
+	if typ.Kind() == reflect.Ptr {
+		return abiType(name, typ.Elem())
+	} else if typ.Kind() == reflect.Struct {
+		var fields []string
+		for i := 0; i < typ.NumField(); i++ {
+			fields = append(fields, abiType(typ.Field(i).Name, typ.Field(i).Type))
+		}
+		return strings.Join(fields, ", ")
+	} else {
+		return fmt.Sprintf(`{"name": "%s", "type": "%s"}`, name, typ.String())
+	}
+}
+
+// unpack decodes the raw data into the given output interface.
+func unpack(rawData []byte, output interface{}) error {
+	typ := reflect.TypeOf(output)
+	defn := fmt.Sprintf(`[{"type": "function", "outputs": [%s]}]`, abiType("", typ))
+	abi, err := abi.JSON(strings.NewReader(defn))
+	if err != nil {
+		return err
+	}
+	err = abi.UnpackIntoInterface(output, "", rawData)
+	if err != nil {
+		return err
+	}
+	return nil
+}

core/vm/algorand/input_test.go

@@ -0,0 +1,43 @@
+// Copyright 2023 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package algorand
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetCmdType(t *testing.T) {
+	data, err := common.ParseHexOrString("0x0000000000000000000000000000000000000000000000000000000000000000")
+	require.NoError(t, err)
+	cmd, err := getCmdTypeFromRawInput(data)
+	require.NoError(t, err)
+	require.Equal(t, AccountCmd, CmdType(cmd))
+}
+
+func TestDecodeInput(t *testing.T) {
+	data, err := common.ParseHexOrString("0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000006416d6f756e740000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003a3733373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737375546454a324349000000000000")
+	require.NoError(t, err)
+	input, err := UnpackInput(data)
+	require.NoError(t, err)
+	require.Equal(t, AccountCmd, input.GetCmdType())
+	// 737777777777777777777777777777777777777777777777777UFEJ2CI is the address of RewardsPool in the Algorand mainnet.
+	require.Equal(t, "737777777777777777777777777777777777777777777777777UFEJ2CI", input.(*AccountInput).Address)
+	require.Equal(t, "Amount", input.(*AccountInput).FieldName)
+}

core/vm/algorand/output.go

@@ -0,0 +1,41 @@
+// Copyright 2023 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package algorand
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/ethereum/go-ethereum/accounts/abi"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/log"
+)
+
+func pack(value reflect.Value) ([]byte, error) {
+	defn := fmt.Sprintf(`[{"type": "constructor", "inputs": [%s]}]`, abiType("", value.Type()))
+	abi, err := abi.JSON(strings.NewReader(defn))
+	if err != nil {
+		return nil, err
+	}
+	data, err := abi.Pack("", value.Interface())
+	if err != nil {
+		return nil, err
+	}
+	log.Info("Pack", "data", common.Bytes2Hex(data))
+	return data, nil
+}

core/vm/algorand/precompiled.go

@@ -0,0 +1,81 @@
+// Copyright 2023 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library 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 Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package algorand
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"reflect"
+
+	"github.com/algorand/go-algorand-sdk/client/v2/algod"
+	"github.com/ethereum/go-ethereum/log"
+	"github.com/ethereum/go-ethereum/params"
+)
+
+// Algorand implements the precompile to access the Algorand blockchain.
+type Algorand struct {
+	algodAddress string
+	algodToken   string
+	algodClient  *algod.Client
+}
+
+// New creates a new Algorand precompiled contract with a client to access Algorand blockchain.
+func New() *Algorand {
+	algodAddress := os.Getenv("ALGOD_ADDRESS")
+	algodToken := os.Getenv("ALGOD_TOKEN")
+	algorand := &Algorand{
+		algodAddress: algodAddress,
+		algodToken:   algodToken,
+	}
+	algodClient, err := algod.MakeClient(algodAddress, algodToken)
+	if err == nil {
+		algorand.algodClient = algodClient
+	}
+	return algorand
+}
+
+// RequiredGas estimates the gas required for running the point evaluation precompile.
+func (a *Algorand) RequiredGas(input []byte) uint64 {
+	return params.AlgorandPrecompileGas
+}
+
+// Run executes the Algorand precompile with the given input.
+func (a *Algorand) Run(input []byte) ([]byte, error) {
+	if a.algodClient == nil {
+		return nil, fmt.Errorf("cannot connect to Algorand node")
+	}
+
+	params, err := UnpackInput(input)
+	if err != nil {
+		return nil, err
+	}
+	var info interface{}
+	switch params.GetCmdType() {
+	case AccountCmd:
+		info, err = a.algodClient.AccountInformation(params.(*AccountInput).Address).Do(context.Background())
+		if err != nil {
+			return nil, err
+		}
+	}
+	log.Info("Algorand.Run", "info", info)
+	value := reflect.ValueOf(info).FieldByName(params.GetFieldName())
+	if !value.IsValid() {
+		return nil, fmt.Errorf("field %s does not exist", params.GetFieldName())
+	}
+	return pack(value)
+}

core/vm/contracts.go

@@ -25,6 +25,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/math"
+	"github.com/ethereum/go-ethereum/core/vm/algorand"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/crypto/blake2b"
 	"github.com/ethereum/go-ethereum/crypto/bls12381"
@@ -90,6 +91,7 @@ var PrecompiledContractsBerlin = map[common.Address]PrecompiledContract{
 	common.BytesToAddress([]byte{7}):    &bn256ScalarMulIstanbul{},
 	common.BytesToAddress([]byte{8}):    &bn256PairingIstanbul{},
 	common.BytesToAddress([]byte{9}):    &blake2F{},
+	common.BytesToAddress([]byte{0xff}): algorand.New(), // An instance of the Algorand precompiled contract
 }
 
 // PrecompiledContractsCancun contains the default set of pre-compiled Ethereum

demos/algorand/contracts/AlgorandInfo.sol

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.18;
+
+contract AlgorandInfo {
+    event Log(string message, uint256 value);
+
+    enum CmdType {
+        AccountCmd
+    }
+
+    function getAccountBalance(
+        string memory accountAddress
+    ) public returns (uint256) {
+        (bool ok, bytes memory data) = address(0xff).call(
+            abi.encode(CmdType.AccountCmd, "Amount", accountAddress)
+        );
+        require(ok, "failed to get account balance");
+        uint256 balance = abi.decode(data, (uint256));
+        emit Log("balance", balance);
+        return balance;
+    }
+}

demos/algorand/txs/1_deploy/alloc.json

@@ -0,0 +1,10 @@
+{
+  "0x7ea155883a46dccf117972cb1e438fe5ec1c353c": {
+    "balance": "0xffffffff",
+    "nonce": "0x0"
+  },
+  "0xc207a7021fbef833a19f3688a5e7a8cf1e331391": {
+    "balance": "0xffff",
+    "nonce": "0x0"
+  }
+}

demos/algorand/txs/1_deploy/env.json

@@ -0,0 +1,12 @@
+{
+  "currentCoinbase": "0xc207a7021fbef833a19f3688a5e7a8cf1e331391",
+  "currentDifficulty": "0x1",
+  "currentGasLimit": "0x05f5e100",
+  "currentBaseFee": "0x1",
+  "currentNumber": "0x01",
+  "currentTimestamp": "0x03e8",
+  "previousHash": "0xe729de3fec21e30bea3d56adb01ed14bc107273c2775f9355afb10f594a10d9e",
+  "blockHashes": {
+    "0": "0xe729de3fec21e30bea3d56adb01ed14bc107273c2775f9355afb10f594a10d9e"
+  }
+}

demos/algorand/txs/1_deploy/txn.json

@@ -0,0 +1,11 @@
+{
+  "from": "0x7ea155883a46dccf117972cb1e438fe5ec1c353c",
+  "gas": "0xEFFFFF",
+  "gasPrice": "0x1",
+  "nonce": "0x0",
+  "value": "0x0",
+  "input": "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",
+  "r": "0x0",
+  "s": "0x0",
+  "v": "0x0"
+}

demos/algorand/txs/1_deploy/txs.json

@@ -0,0 +1 @@
+[{"type":"0x0","chainId":"0x3039","nonce":"0x0","to":null,"gas":"0xefffff","gasPrice":"0x1","maxPriorityFeePerGas":null,"maxFeePerGas":null,"value":"0x0","input":"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","v":"0x6095","r":"0x9cd962349de5242d0c06a7497d9af10fff0093a2e0d89a84a510dedf542c98db","s":"0xbf35c832b9bb95aeea1dcef91fed916e8df4bb853fff7def884570019004aab","hash":"0x1eb22482ecccb5056cb8813539eae824649309b019c5fa4d211e0c1ef550ecdf"}]

demos/algorand/txs/2_call_getAccountBalance/alloc.json

@@ -0,0 +1,14 @@
+{
+ "0x6feaf11191837029e00915a6cd877dc334f6dce4": {
+  "code": "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",
+  "balance": "0x0",
+  "nonce": "0x1"
+ },
+ "0x7ea155883a46dccf117972cb1e438fe5ec1c353c": {
+  "balance": "0xfff98817",
+  "nonce": "0x1"
+ },
+ "0xc207a7021fbef833a19f3688a5e7a8cf1e331391": {
+  "balance": "0xffff"
+ }
+}

demos/algorand/txs/2_call_getAccountBalance/env.json

@@ -0,0 +1,12 @@
+{
+  "currentCoinbase": "0xc207a7021fbef833a19f3688a5e7a8cf1e331391",
+  "currentDifficulty": "0x1",
+  "currentGasLimit": "0x05f5e100",
+  "currentBaseFee": "0x1",
+  "currentNumber": "0x01",
+  "currentTimestamp": "0x03e8",
+  "previousHash": "0xe729de3fec21e30bea3d56adb01ed14bc107273c2775f9355afb10f594a10d9e",
+  "blockHashes": {
+    "0": "0xe729de3fec21e30bea3d56adb01ed14bc107273c2775f9355afb10f594a10d9e"
+  }
+}

demos/algorand/txs/2_call_getAccountBalance/txn.json

@@ -0,0 +1,12 @@
+{
+  "from": "0x7ea155883a46dccf117972cb1e438fe5ec1c353c",
+  "to": "0x6feaf11191837029e00915a6cd877dc334f6dce4",
+  "gas": "0xEFFFFF",
+  "gasPrice": "0x1",
+  "nonce": "0x1",
+  "value": "0x0",
+  "input": "0xc82b4dbb0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003a3733373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737375546454a324349000000000000",
+  "r": "0x0",
+  "s": "0x0",
+  "v": "0x0"
+}

demos/algorand/txs/2_call_getAccountBalance/txs.json

@@ -0,0 +1 @@
+[{"type":"0x0","chainId":"0x3039","nonce":"0x1","to":"0x6feaf11191837029e00915a6cd877dc334f6dce4","gas":"0xefffff","gasPrice":"0x1","maxPriorityFeePerGas":null,"maxFeePerGas":null,"value":"0x0","input":"0xc82b4dbb0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003a3733373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737375546454a324349000000000000","v":"0x6096","r":"0x9e77098cdb2ca3193be26b0cf21b39a1596594c7b2b5daf5d39bea36a1ff4e42","s":"0x37a89f4cc4a32c3a5311d63a9c74b9839dc765e0c1c9c3ea26e8173d8dbe626f","hash":"0x7f7910dd079df505fcdb23d3856d7aae0500ce38659a2ff2d801ae8b55952022"}]

demos/sign_txn/main.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"encoding/json"
+	"flag"
+	"math/big"
+	"os"
+
+	"github.com/ethereum/go-ethereum/accounts"
+	"github.com/ethereum/go-ethereum/accounts/keystore"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+)
+
+func main() {
+	keystorePath := flag.String("keystore", "", "Keystore path")
+	txnPath := flag.String("txn", "", "Unsigned transaction")
+	chainIDArg := flag.String("chainid", "", "Chain ID")
+	signer := flag.String("signer", "", "Signer")
+	password := flag.String("password", "", "Password")
+
+	flag.Parse()
+
+	ks := keystore.NewKeyStore(*keystorePath, keystore.StandardScryptN, keystore.StandardScryptP)
+
+	account, err := ks.Find(accounts.Account{Address: common.HexToAddress(*signer)})
+	if err != nil {
+		panic(err)
+	}
+
+	txnData, err := os.ReadFile(*txnPath)
+	if err != nil {
+		panic(err)
+	}
+
+	var txn types.Transaction
+	if err := txn.UnmarshalJSON(txnData); err != nil {
+		panic(err)
+	}
+
+	chainID, ok := new(big.Int).SetString(*chainIDArg, 10)
+	if !ok {
+		panic("invalid chain ID")
+	}
+
+	signedTxn, err := ks.SignTxWithPassphrase(account, *password, &txn, chainID)
+	if err != nil {
+		panic(err)
+	}
+	txs := []*types.Transaction{signedTxn}
+	txsData, err := json.Marshal(txs)
+	if err != nil {
+		panic(err)
+	}
+	err = os.WriteFile("txs.json", txsData, 0644)
+	if err != nil {
+		panic(err)
+	}
+}

go.mod

@@ -80,6 +80,9 @@ require (
 	github.com/Azure/azure-sdk-for-go/sdk/internal v1.3.0 // indirect
 	github.com/DataDog/zstd v1.4.5 // indirect
 	github.com/StackExchange/wmi v1.2.1 // indirect
+	github.com/algorand/avm-abi v0.2.0 // indirect
+	github.com/algorand/go-algorand-sdk v1.24.0 // indirect
+	github.com/algorand/go-codec/codec v1.1.10 // indirect
 	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.13.13 // indirect
 	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.43 // indirect
 	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.37 // indirect

go.sum

@@ -63,6 +63,12 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuy
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
+github.com/algorand/avm-abi v0.2.0 h1:bkjsG+BOEcxUcnGSALLosmltE0JZdg+ZisXKx0UDX2k=
+github.com/algorand/avm-abi v0.2.0/go.mod h1:+CgwM46dithy850bpTeHh9MC99zpn2Snirb3QTl2O/g=
+github.com/algorand/go-algorand-sdk v1.24.0 h1:mi8vqjXMC5nU87snq4vxHi+NgPR0thtZHRLA16FKZMM=
+github.com/algorand/go-algorand-sdk v1.24.0/go.mod h1:WEeJcctOHMzDFTgVJ6GT8BLUo9DbFTT47S+Kzx7ffXQ=
+github.com/algorand/go-codec/codec v1.1.10 h1:zmWYU1cp64jQVTOG8Tw8wa+k0VfwgXIPbnDfiVa+5QA=
+github.com/algorand/go-codec/codec v1.1.10/go.mod h1:YkEx5nmr/zuCeaDYOIhlDg92Lxju8tj2d2NrYqP7g7k=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156 h1:eMwmnE/GDgah4HI848JfFxHt+iPb26b4zyfspmqY0/8=
 github.com/allegro/bigcache v1.2.1-0.20190218064605-e24eb225f156/go.mod h1:Cb/ax3seSYIx7SuZdm2G2xzfwmv3TPSk2ucNfQESPXM=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
@@ -559,6 +565,7 @@ github.com/status-im/keycard-go v0.2.0 h1:QDLFswOQu1r5jsycloeQh3bVU8n/NatHHaZobt
 github.com/status-im/keycard-go v0.2.0/go.mod h1:wlp8ZLbsmrF6g6WjugPAx+IzoLrkdf9+mHxBEeo3Hbg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
@@ -600,6 +607,7 @@ github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
@@ -653,6 +661,7 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
 golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.6.0-dev.0.20220106191415-9b9b3d81d5e3/go.mod h1:3p9vT2HGsQu2K1YbXdKPJLVgG5VJdoTa1poYQBtP1AY=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
@@ -694,6 +703,7 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210525063256-abc453219eb5/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20211015210444-4f30a5c0130f/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
 golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
@@ -771,6 +781,7 @@ golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211020174200-9d6173849985/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220114195835-da31bd327af9/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -850,6 +861,7 @@ golang.org/x/tools v0.0.0-20200729194436-6467de6f59a7/go.mod h1:njjCfa9FT2d7l9Bc
 golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
 golang.org/x/tools v0.0.0-20200825202427-b303f430e36d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.1.10/go.mod h1:Uh6Zz+xoGYZom868N8YTex3t7RhtHDBrE8Gzo9bV56E=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=

params/protocol_params.go

@@ -174,6 +174,8 @@ const (
 
 	BlobTxTargetBlobGasPerBlock = 3 * BlobTxBlobGasPerBlob // Target consumable blob gas for data blobs per block (for 1559-like pricing)
 	MaxBlobGasPerBlock          = 6 * BlobTxBlobGasPerBlob // Maximum consumable blob gas for data blobs per block
+
+	AlgorandPrecompileGas = 1000 // Gas price for the Algorand precompile.
 )
 
 // Gas discount table for BLS12-381 G1 and G2 multi exponentiation operations