core/vm, crypto/blake2b: add BLAKE2b compression func at 0x09
The precompile at 0x09 wraps the BLAKE2b F compression function: https://tools.ietf.org/html/rfc7693#section-3.2 The precompile requires 6 inputs tightly encoded, taking exactly 213 bytes, as explained below. - `rounds` - the number of rounds - 32-bit unsigned big-endian word - `h` - the state vector - 8 unsigned 64-bit little-endian words - `m` - the message block vector - 16 unsigned 64-bit little-endian words - `t_0, t_1` - offset counters - 2 unsigned 64-bit little-endian words - `f` - the final block indicator flag - 8-bit word [4 bytes for rounds][64 bytes for h][128 bytes for m][8 bytes for t_0] [8 bytes for t_1][1 byte for f] The boolean `f` parameter is considered as `true` if set to `1`. The boolean `f` parameter is considered as `false` if set to `0`. All other values yield an invalid encoding of `f` error. The precompile should compute the F function as specified in the RFC (https://tools.ietf.org/html/rfc7693#section-3.2) and return the updated state vector `h` with unchanged encoding (little-endian). See EIP-152 for details.
This commit is contained in:
Piotr Dyraga
committed by
Péter Szilágyi
Péter Szilágyi
parent
dbb03fe989
commit
2890f060b7
@ -19,6 +19,7 @@ package vm
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import (
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"fmt"
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"math/big"
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"reflect"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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@ -32,6 +33,14 @@ type precompiledTest struct {
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noBenchmark bool // Benchmark primarily the worst-cases
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}
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// precompiledFailureTest defines the input/error pairs for precompiled
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// contract failure tests.
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type precompiledFailureTest struct {
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input string
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expectedError error
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name string
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}
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// modexpTests are the test and benchmark data for the modexp precompiled contract.
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var modexpTests = []precompiledTest{
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{
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@ -336,8 +345,56 @@ var bn256PairingTests = []precompiledTest{
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},
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}
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// EIP-152 test vectors
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var blake2FMalformedInputTests = []precompiledFailureTest{
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{
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input: "",
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expectedError: errBlake2FIncorrectInputLength,
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name: "vector 0: empty input",
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},
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{
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input: "00000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
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expectedError: errBlake2FIncorrectInputLength,
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name: "vector 1: less than 213 bytes input",
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},
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{
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input: "000000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
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expectedError: errBlake2FIncorrectInputLength,
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name: "vector 2: more than 213 bytes input",
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},
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{
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input: "0000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000002",
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expectedError: errBlake2FIncorrectFinalBlockIndicator,
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name: "vector 3: malformed final block indicator flag",
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},
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}
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// EIP-152 test vectors
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var blake2FTests = []precompiledTest{
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{
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input: "0000000048c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
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expected: "08c9bcf367e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d282e6ad7f520e511f6c3e2b8c68059b9442be0454267ce079217e1319cde05b",
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name: "vector 4",
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},
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{ // https://tools.ietf.org/html/rfc7693#appendix-A
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input: "0000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
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expected: "ba80a53f981c4d0d6a2797b69f12f6e94c212f14685ac4b74b12bb6fdbffa2d17d87c5392aab792dc252d5de4533cc9518d38aa8dbf1925ab92386edd4009923",
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name: "vector 5",
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},
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{
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input: "0000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000000",
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expected: "75ab69d3190a562c51aef8d88f1c2775876944407270c42c9844252c26d2875298743e7f6d5ea2f2d3e8d226039cd31b4e426ac4f2d3d666a610c2116fde4735",
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name: "vector 6",
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},
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{
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input: "0000000148c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
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expected: "b63a380cb2897d521994a85234ee2c181b5f844d2c624c002677e9703449d2fba551b3a8333bcdf5f2f7e08993d53923de3d64fcc68c034e717b9293fed7a421",
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name: "vector 7",
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},
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}
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func testPrecompiled(addr string, test precompiledTest, t *testing.T) {
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p := PrecompiledContractsByzantium[common.HexToAddress(addr)]
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p := PrecompiledContractsIstanbul[common.HexToAddress(addr)]
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in := common.Hex2Bytes(test.input)
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contract := NewContract(AccountRef(common.HexToAddress("1337")),
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nil, new(big.Int), p.RequiredGas(in))
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@ -350,11 +407,25 @@ func testPrecompiled(addr string, test precompiledTest, t *testing.T) {
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})
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}
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func testPrecompiledFailure(addr string, test precompiledFailureTest, t *testing.T) {
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p := PrecompiledContractsIstanbul[common.HexToAddress(addr)]
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in := common.Hex2Bytes(test.input)
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contract := NewContract(AccountRef(common.HexToAddress("31337")),
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nil, new(big.Int), p.RequiredGas(in))
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t.Run(test.name, func(t *testing.T) {
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_, err := RunPrecompiledContract(p, in, contract)
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if !reflect.DeepEqual(err, test.expectedError) {
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t.Errorf("Expected error [%v], got [%v]", test.expectedError, err)
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}
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})
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}
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func benchmarkPrecompiled(addr string, test precompiledTest, bench *testing.B) {
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if test.noBenchmark {
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return
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}
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p := PrecompiledContractsByzantium[common.HexToAddress(addr)]
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p := PrecompiledContractsIstanbul[common.HexToAddress(addr)]
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in := common.Hex2Bytes(test.input)
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reqGas := p.RequiredGas(in)
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contract := NewContract(AccountRef(common.HexToAddress("1337")),
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@ -481,3 +552,20 @@ func BenchmarkPrecompiledBn256Pairing(bench *testing.B) {
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benchmarkPrecompiled("08", test, bench)
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}
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}
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func TestPrecompiledBlake2F(t *testing.T) {
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for _, test := range blake2FTests {
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testPrecompiled("09", test, t)
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}
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}
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func BenchmarkPrecompiledBlake2F(bench *testing.B) {
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for _, test := range blake2FTests {
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benchmarkPrecompiled("09", test, bench)
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}
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}
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func TestPrecompileBlake2FMalformedInput(t *testing.T) {
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for _, test := range blake2FMalformedInputTests {
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testPrecompiledFailure("09", test, t)
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}
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}
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