hask: import package from _pkg.dev, make it compile

pkg/crypto/hash/hash.go

@@ -4,7 +4,7 @@ import (
 	"crypto/sha256"
 	"io"
 
-	"github.com/CityOfZion/neo-go/pkg/wire/util"
+	"github.com/CityOfZion/neo-go/pkg/util"
 	"golang.org/x/crypto/ripemd160"
 )
 

pkg/crypto/hash/hash_test.go

@@ -15,7 +15,7 @@ func TestSha256(t *testing.T) {
 		t.Fatal(err)
 	}
 	expected := "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
-	actual := hex.EncodeToString(data.Bytes()) // MARK: In the DecodeBytes function, there is a bytes reverse, not sure why?
+	actual := hex.EncodeToString(data.Bytes())
 
 	assert.Equal(t, expected, actual)
 }

pkg/util/uint256.go

@@ -25,9 +25,8 @@ func Uint256DecodeReverseString(s string) (u Uint256, err error) {
 	return Uint256DecodeReverseBytes(b)
 }
 
-// Uint256DecodeReverseBytes attempts to decode the given string (in LE representation) into an Uint256.
+// Uint256DecodeBytes attempts to decode the given string (in BE representation) into an Uint256.
-func Uint256DecodeReverseBytes(b []byte) (u Uint256, err error) {
+func Uint256DecodeBytes(b []byte) (u Uint256, err error) {
-	b = ArrayReverse(b)
 	if len(b) != uint256Size {
 		return u, fmt.Errorf("expected []byte of size %d got %d", uint256Size, len(b))
 	}
@@ -35,6 +34,12 @@ func Uint256DecodeReverseBytes(b []byte) (u Uint256, err error) {
 	return u, nil
 }
 
+// Uint256DecodeReverseBytes attempts to decode the given string (in LE representation) into an Uint256.
+func Uint256DecodeReverseBytes(b []byte) (u Uint256, err error) {
+	b = ArrayReverse(b)
+	return Uint256DecodeBytes(b)
+}
+
 // Bytes returns a byte slice representation of u.
 func (u Uint256) Bytes() []byte {
 	return u[:]