bn128 finite fields operations

utils/utils.go

@@ -0,0 +1,17 @@
+package utils
+
+import "encoding/hex"
+
+// BytesToHex converts from an array of bytes to a hex encoded string
+func BytesToHex(bytesArray []byte) string {
+	r := "0x"
+	h := hex.EncodeToString(bytesArray)
+	r = r + h
+	return r
+}
+
+// HexToBytes converts from a hex string into an array of bytes
+func HexToBytes(h string) ([]byte, error) {
+	b, err := hex.DecodeString(h[2:])
+	return b, err
+}