From fabf42918d6d9adfb12540f4ce8bc5aec70b5448 Mon Sep 17 00:00:00 2001
From: Ingo <71161062+iseeberg79@users.noreply.github.com>
Date: Thu, 26 Feb 2026 15:10:46 +0100
Subject: [PATCH] Fronius Solar API: fix battery mode for firmware >= 1.38
 (#27711)

---
 plugin/http_auth.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/plugin/http_auth.go b/plugin/http_auth.go
index d9a7fef88..87dd2714a 100644
--- a/plugin/http_auth.go
+++ b/plugin/http_auth.go
@@ -2,6 +2,7 @@ package plugin
 
 import (
 	"context"
+	"crypto/sha256"
 	"fmt"
 	"net/http"
 	"strings"
@@ -13,6 +14,11 @@ import (
 	"golang.org/x/oauth2"
 )
 
+func init() {
+	// some servers send SHA256 instead of the RFC 7616 compliant SHA-256
+	digest.Algs["SHA256"] = sha256.New
+}
+
 // Auth is the authorization config
 type Auth struct {
 	Type, User, Password, Token string