From a9cde704a480b32f85cb6293e5dc18bd7793f4cf Mon Sep 17 00:00:00 2001
From: Jason2866 <24528715+Jason2866@users.noreply.github.com>
Date: Wed, 20 Nov 2024 11:44:13 +0100
Subject: [PATCH] guard crypt update

---
 libraries/Update/src/Update.h | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/libraries/Update/src/Update.h b/libraries/Update/src/Update.h
index 5832846fd28..ed791501c64 100644
--- a/libraries/Update/src/Update.h
+++ b/libraries/Update/src/Update.h
@@ -63,6 +63,7 @@ class UpdateClass {
     */
   bool begin(size_t size = UPDATE_SIZE_UNKNOWN, int command = U_FLASH, int ledPin = -1, uint8_t ledOn = LOW, const char *label = NULL);
 
+#ifdef UPDATE_CRYPT
   /*
      Setup decryption configuration
      Crypt Key is 32bytes(256bits) block of data, use the same key as used to encrypt image file
@@ -71,6 +72,7 @@ class UpdateClass {
      Crypt Mode,    used to select if image files should be decrypted or not
     */
   bool setupCrypt(const uint8_t *cryptKey = 0, size_t cryptAddress = 0, uint8_t cryptConfig = 0xf, int cryptMode = U_AES_DECRYPT_AUTO);
+#endif /* UPDATE_CRYPT */
 
   /*
       Writes a buffer to the flash and increments the address
@@ -99,6 +101,7 @@ class UpdateClass {
     */
   bool end(bool evenIfRemaining = false);
 
+#ifdef UPDATE_CRYPT
   /*
       sets AES256 key(32 bytes) used for decrypting image file
     */
@@ -122,6 +125,7 @@ class UpdateClass {
   void setCryptConfig(const uint8_t cryptConfig) {
     _cryptCfg = cryptConfig & 0x0f;
   }
+#endif /* UPDATE_CRYPT */
 
   /*
       Aborts the running update
@@ -139,7 +143,11 @@ class UpdateClass {
       sets the expected MD5 for the firmware (hexString)
       If calc_post_decryption is true, the update library will calculate the MD5 after the decryption, if false the calculation occurs before the decryption
     */
-  bool setMD5(const char *expected_md5, bool calc_post_decryption = true);
+  bool setMD5(const char *expected_md5
+#ifdef UPDATE_CRYPT
+, bool calc_post_decryption = true
+#endif /* #ifdef UPDATE_CRYPT */
+);
 
   /*
       returns the MD5 String of the successfully ended firmware
@@ -236,8 +244,10 @@ class UpdateClass {
 private:
   void _reset();
   void _abort(uint8_t err);
+#ifdef UPDATE_CRYPT
   void _cryptKeyTweak(size_t cryptAddress, uint8_t *tweaked_key);
   bool _decryptBuffer();
+#endif /* UPDATE_CRYPT */
   bool _writeBuffer();
   bool _verifyHeader(uint8_t data);
   bool _verifyEnd();
@@ -245,8 +255,10 @@ class UpdateClass {
   bool _chkDataInBlock(const uint8_t *data, size_t len) const;  // check if block contains any data or is empty
 
   uint8_t _error;
+#ifdef UPDATE_CRYPT
   uint8_t *_cryptKey;
   uint8_t *_cryptBuffer;
+#endif /* UPDATE_CRYPT */
   uint8_t *_buffer;
   uint8_t *_skipBuffer;
   size_t _bufferLen;
@@ -258,15 +270,19 @@ class UpdateClass {
   const esp_partition_t *_partition;
 
   String _target_md5;
+#ifdef UPDATE_CRYPT
   bool _target_md5_decrypted = true;
+#endif /* UPDATE_CRYPT */
   MD5Builder _md5;
 
   int _ledPin;
   uint8_t _ledOn;
 
+#ifdef UPDATE_CRYPT
   uint8_t _cryptMode;
   size_t _cryptAddress;
   uint8_t _cryptCfg;
+#endif /* UPDATE_CRYPT */
 };
 
 #if !defined(NO_GLOBAL_INSTANCES) && !defined(NO_GLOBAL_UPDATE)