feat: support crypto/ed25519

Co-authored-by: Miguel Victoria Villaquiran <Villaquiranm@users.noreply.github.com>

gnovm/stdlibs/crypto/ed25519/ed25519.gno

@@ -0,0 +1,8 @@
+package ed25519
+
+// Verify returns true if the signature is valid for the message and public key.
+func Verify(publicKey []byte, message []byte, signature []byte) bool {
+	return verify(publicKey, message, signature)
+}
+
+func verify(publicKey []byte, message []byte, signature []byte) bool // injected

gnovm/stdlibs/crypto/ed25519/ed25519.go

@@ -0,0 +1,9 @@
+package ed25519
+
+import (
+	"crypto/ed25519"
+)
+
+func X_verify(publicKey []byte, message []byte, signature []byte) bool {
+	return ed25519.Verify(publicKey, message, signature)
+}

gnovm/stdlibs/crypto/ed25519/ed25519_test.gno

@@ -0,0 +1,16 @@
+package ed25519
+
+import (
+	"crypto/ed25519"
+	"encoding/hex"
+	"std"
+	"testing"
+)
+
+func TestED25519Verify(t *testing.T) {
+	publicKey, _ := hex.DecodeString("0D853FA898A07EB91F618BB3E8B738B0E45BE9B3053799A2C42F8204F5FA3505")
+	signature, _ := hex.DecodeString("2B39638983858715AD2FA059665ADFE267936B8F20C4DA01E9650958E0CA65C0255C75164360F468087FE8385140E48EE3471E332472A50AEE599F9D0EADD106")
+	if !ed25519.Verify(publicKey, []byte("hello gno.land"), signature) {
+		t.Error("verify failed")
+	}
+}