basic implementation

multibase.go

@@ -0,0 +1,40 @@
+package multibase
+
+import (
+	"encoding/hex"
+	"fmt"
+
+	b58 "github.com/jbenet/go-base58"
+)
+
+const (
+	Base1        = '1'
+	Base2        = '0'
+	Base8        = '7'
+	Base10       = '9'
+	Base16       = 'f'
+	Base58Flickr = 'Z'
+	Base58BTC    = 'z'
+)
+
+var ErrUnsupportedEncoding = fmt.Errorf("selected encoding not supported")
+
+func Encode(base int, data []byte) (string, error) {
+	switch base {
+	case Base58BTC:
+		return string(Base58BTC) + b58.EncodeAlphabet(data, b58.BTCAlphabet), nil
+	case Base16:
+		return string(Base16) + hex.EncodeToString(data), nil
+	default:
+		return "", ErrUnsupportedEncoding
+	}
+}
+
+func Decode(data string) (int, []byte, error) {
+	switch data[0] {
+	case Base58BTC:
+		return Base58BTC, b58.DecodeAlphabet(data[1:], b58.BTCAlphabet), nil
+	default:
+		return -1, nil, ErrUnsupportedEncoding
+	}
+}