sha256 for host

esphome/components/sha256/__init__.py

@@ -1,5 +1,19 @@
 import esphome.codegen as cg
+from esphome.core import CORE, IS_MACOS
 
 CODEOWNERS = ["@esphome/core"]
 
 sha256_ns = cg.esphome_ns.namespace("sha256")
+
+
+async def to_code(config):
+    # Add OpenSSL library for host platform
+    if CORE.is_host:
+        if IS_MACOS:
+            # macOS needs special handling for Homebrew OpenSSL
+            cg.add_build_flag("-I/opt/homebrew/opt/openssl/include")
+            cg.add_build_flag("-L/opt/homebrew/opt/openssl/lib")
+            cg.add_build_flag("-lcrypto")
+        else:
+            # Linux and other Unix systems usually have OpenSSL in standard paths
+            cg.add_build_flag("-lcrypto")

esphome/components/sha256/sha256.cpp

@@ -1,7 +1,7 @@
 #include "sha256.h"
 
 // Only compile SHA256 implementation on platforms that support it
-#if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY)
+#if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY) || defined(USE_HOST)
 
 #include "esphome/core/helpers.h"
 #include <cstring>
@@ -67,6 +67,35 @@ void SHA256::calculate() {
   }
 }
 
+#elif defined(USE_HOST)
+
+SHA256::~SHA256() = default;
+
+void SHA256::init() {
+  if (!this->ctx_) {
+    this->ctx_ = std::make_unique<SHA256Context>();
+  }
+  SHA256_Init(&this->ctx_->ctx);
+  this->ctx_->calculated = false;
+}
+
+void SHA256::add(const uint8_t *data, size_t len) {
+  if (!this->ctx_) {
+    this->init();
+  }
+  SHA256_Update(&this->ctx_->ctx, data, len);
+}
+
+void SHA256::calculate() {
+  if (!this->ctx_) {
+    this->init();
+  }
+  if (!this->ctx_->calculated) {
+    SHA256_Final(this->ctx_->hash, &this->ctx_->ctx);
+    this->ctx_->calculated = true;
+  }
+}
+
 #elif defined(USE_ARDUINO)
 
 SHA256::~SHA256() = default;

esphome/components/sha256/sha256.h

@@ -3,7 +3,7 @@
 #include "esphome/core/defines.h"
 
 // Only define SHA256 on platforms that support it
-#if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY)
+#if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY) || defined(USE_HOST)
 
 #include <cstdint>
 #include <string>
@@ -13,6 +13,8 @@
 #include "mbedtls/sha256.h"
 #elif defined(USE_ESP8266) || defined(USE_RP2040)
 #include <bearssl/bearssl_hash.h>
+#elif defined(USE_HOST)
+#include <openssl/sha.h>
 #elif defined(USE_ARDUINO)
 #include <SHA256.h>
 #endif
@@ -50,6 +52,12 @@ class SHA256 {
     uint8_t hash[32];
     bool calculated{false};
   };
+#elif defined(USE_HOST)
+  struct SHA256Context {
+    SHA256_CTX ctx;
+    uint8_t hash[32];
+    bool calculated{false};
+  };
 #elif defined(USE_ARDUINO)
   struct SHA256Context {
     ::SHA256 sha;

tests/components/sha512/common.yaml

@@ -0,0 +1,5 @@
+wifi:
+  ssid: MySSID
+  password: password1
+
+sha256:

tests/components/sha512/test.bk72xx-ard.yaml

@@ -0,0 +1,2 @@
+packages:
+  common: !include common.yaml

tests/components/sha512/test.esp32-idf.yaml

@@ -0,0 +1 @@
+<<: !include common.yaml

tests/components/sha512/test.esp8266-ard.yaml

@@ -0,0 +1 @@
+<<: !include common.yaml

tests/components/sha512/test.host.yaml

@@ -0,0 +1 @@
+<<: !include common.yaml

tests/components/sha512/test.rp2040-ard.yaml

@@ -0,0 +1 @@
+<<: !include common.yaml