feat(stdlibs): sha3.Sum256(), sha3.Sum512()

stdlibs/crypto/sha3/sha3.gno

@@ -0,0 +1,18 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package sha3
+
+import (
+	isha3 "internal/crypto/sha3"
+)
+
+
+func Sum256(data []byte) []byte {
+	return isha3.Sum256(data)
+}
+
+func Sum512(data []byte) []byte {
+	return isha3.Sum512(data)
+}

stdlibs/crypto/sha3/sha3_test.gno

@@ -0,0 +1,27 @@
+package sha3
+
+import (
+	"std"
+	"testing"
+
+	"crypto/sha3"
+	"encoding/hex"
+)
+
+func TestSum256(t *testing.T) {
+	got := sha3.Sum256([]byte("welcome to gnoland"))
+	expected := "40b3c0de951082601cf10ebab6ec23ee2bd91f978a152f295451b9dcbed33ddb"
+
+	if (hex.EncodeToString(got)) != expected {
+		t.Errorf("got %v(%T), expected %v(%T)", hex.EncodeToString(got), hex.EncodeToString(got), expected, expected)
+	}
+}
+
+func TestSum512(t *testing.T) {
+	got := sha3.Sum512([]byte("hello gnomes"))
+	expected := "efcdb0b2a91166affe1ae1ac437f21edb9dc319808af9bdb59d52e56f68b83b671a3446412df6b931435f7a3e84713069b18e4d23bd8d230ea5bbfec6f59f417"
+
+	if (hex.EncodeToString(got)) != expected {
+		t.Errorf("got %v(%T), expected %v(%T)", hex.EncodeToString(got), hex.EncodeToString(got), expected, expected)
+	}
+}

stdlibs/internal/crypto/sha3/sha3.gno

@@ -0,0 +1 @@
+package sha3

stdlibs/stdlibs.go

@@ -1,12 +1,15 @@
 package stdlibs
 
 import (
+	"bytes"
 	"crypto/sha256"
 	"math"
 	"reflect"
 	"strconv"
 	"time"
 
+	"golang.org/x/crypto/sha3"
+
 	"github.com/gnolang/gno/pkgs/bech32"
 	"github.com/gnolang/gno/pkgs/crypto"
 	gno "github.com/gnolang/gno/pkgs/gnolang"
@@ -21,6 +24,59 @@ func InjectNativeMappings(store gno.Store) {
 
 func InjectPackage(store gno.Store, pn *gno.PackageNode) {
 	switch pn.PkgPath {
+	case "internal/crypto/sha3":
+		pn.DefineNative("Sum256",
+			gno.Flds( // params
+				"data", "[]byte",
+			),
+			gno.Flds( // results
+				"bz", "[]byte",
+			),
+			func(m *gno.Machine) {
+				arg0 := m.LastBlock().GetParams1().TV
+				bz := []byte(nil)
+				if arg0.V != nil {
+					slice := arg0.V.(*gno.SliceValue)
+					array := slice.GetBase(m.Store)
+					bz = array.GetReadonlyBytes()[:slice.Length]
+				}
+				// remove padding
+				bzNP := bytes.Trim(bz, "\x00")
+				hash := sha3.Sum256(bzNP)
+				res0 := gno.Go2GnoValue(
+					m.Alloc,
+					m.Store,
+					reflect.ValueOf(hash),
+				)
+				m.PushValue(res0)
+			},
+		)
+		pn.DefineNative("Sum512",
+			gno.Flds( // params
+				"data", "[]byte",
+			),
+			gno.Flds( // results
+				"bz", "[]byte",
+			),
+			func(m *gno.Machine) {
+				arg0 := m.LastBlock().GetParams1().TV
+				bz := []byte(nil)
+				if arg0.V != nil {
+					slice := arg0.V.(*gno.SliceValue)
+					array := slice.GetBase(m.Store)
+					bz = array.GetReadonlyBytes()[:slice.Length]
+				}
+				// remove padding
+				bzNP := bytes.Trim(bz, "\x00")
+				hash := sha3.Sum512(bzNP)
+				res0 := gno.Go2GnoValue(
+					m.Alloc,
+					m.Store,
+					reflect.ValueOf(hash),
+				)
+				m.PushValue(res0)
+			},
+		)
 	case "internal/crypto/sha256":
 		pn.DefineNative("Sum256",
 			gno.Flds( // params