initial commitHEADmain

1 files changed, 44 insertions, 0 deletions

diff --git a/libraries/ESP_Async_WebServer/src/BackPort_SHA1Builder.h b/libraries/ESP_Async_WebServer/src/BackPort_SHA1Builder.h
new file mode 100644
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--- /dev/null
+++ b/libraries/ESP_Async_WebServer/src/BackPort_SHA1Builder.h
@@ -0,0 +1,44 @@
+// Copyright 2024 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <Arduino.h>
+#if ESP_IDF_VERSION_MAJOR < 5
+
+#ifndef SHA1Builder_h
+#define SHA1Builder_h
+
+#include <Stream.h>
+#include <WString.h>
+
+#define SHA1_HASH_SIZE 20
+
+class SHA1Builder {
+private:
+  uint32_t total[2];            /* number of bytes processed  */
+  uint32_t state[5];            /* intermediate digest state  */
+  unsigned char buffer[64];     /* data block being processed */
+  uint8_t hash[SHA1_HASH_SIZE]; /* SHA-1 result               */
+
+  void process(const uint8_t *data);
+
+public:
+  void begin();
+  void add(const uint8_t *data, size_t len);
+  void calculate();
+  void getBytes(uint8_t *output);
+};
+
+#endif  // SHA1Builder_h
+
+#endif  // ESP_IDF_VERSION_MAJOR < 5