custom exp and nbf

token.go

@@ -55,8 +55,8 @@ func NewToken(claims Claims, hash Hash) *Token {
 	}
 	return &Token{
 		header: Claims{
-			"alg": hash.Alg(),
-			"typ": typ,
+			AlgClaim: hash.Alg(),
+			TypClaim: Typ,
 		},
 		Claims: claims,
 	}
@@ -67,7 +67,7 @@ func DecodeToken(token string) (t *Token, err error) {
 	if token == "" {
 		return nil, ErrEmptyToken
 	}
-	parts := strings.Split(token, ".")
+	parts := strings.Split(token, TokenSeparator)
 	if len(parts) < 3 {
 		return nil, ErrMissingTokenParts
 	}
@@ -98,7 +98,7 @@ func DecodeToken(token string) (t *Token, err error) {
 	}
 	t.rawSignature, err = base64.URLEncoding.DecodeString(parts[2])
 	t.signature = parts[2]
-	t.data = strings.Join(parts[:2], ".")
+	t.data = strings.Join(parts[:2], TokenSeparator)
 	t.raw = token
 	return
 }