更新项目配置，修改 Go 版本至 1.24，添加依赖项，重构主程序以加载配置和初始化服务，删除不再使用的远程目标配置文件。

cmii-uav-watchdog/utils/crypto.go

@@ -0,0 +1,113 @@
+package utils
+
+import (
+	"cmii-uav-watchdog-common/models"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"io"
+)
+
+// Encrypt 加密字符串
+func Encrypt(plaintext string, key string) (string, error) {
+	// 创建hash
+	hasher := sha256.New()
+	hasher.Write([]byte(key))
+	keyBytes := hasher.Sum(nil)
+	
+	// 创建cipher
+	block, err := aes.NewCipher(keyBytes)
+	if err != nil {
+		return "", err
+	}
+	
+	// 创建gcm
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+	
+	// 创建nonce
+	nonce := make([]byte, gcm.NonceSize())
+	if _, err := io.ReadFull(rand.Reader, nonce); err != nil {
+		return "", err
+	}
+	
+	// 加密
+	ciphertext := gcm.Seal(nonce, nonce, []byte(plaintext), nil)
+	
+	// 编码为base64
+	return base64.StdEncoding.EncodeToString(ciphertext), nil
+}
+
+// Decrypt 解密字符串
+func Decrypt(encrypted string, key string) (string, error) {
+	// 解码base64
+	ciphertext, err := base64.StdEncoding.DecodeString(encrypted)
+	if err != nil {
+		return "", err
+	}
+	
+	// 创建hash
+	hasher := sha256.New()
+	hasher.Write([]byte(key))
+	keyBytes := hasher.Sum(nil)
+	
+	// 创建cipher
+	block, err := aes.NewCipher(keyBytes)
+	if err != nil {
+		return "", err
+	}
+	
+	// 创建gcm
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+	
+	// 检查长度
+	if len(ciphertext) < gcm.NonceSize() {
+		return "", errors.New("密文太短")
+	}
+	
+	// 分离nonce和密文
+	nonce, ciphertext := ciphertext[:gcm.NonceSize()], ciphertext[gcm.NonceSize():]
+	
+	// 解密
+	plaintext, err := gcm.Open(nil, nonce, ciphertext, nil)
+	if err != nil {
+		return "", err
+	}
+	
+	return string(plaintext), nil
+}
+
+// EncryptHostInfo 加密主机信息
+func EncryptHostInfo(hostInfo models.HostInfo) (string, error) {
+	// 序列化主机信息
+	data, err := json.Marshal(hostInfo)
+	if err != nil {
+		return "", err
+	}
+	
+	// 计算SHA256作为统一标识
+	hasher := sha256.New()
+	hasher.Write(data)
+	hash := base64.StdEncoding.EncodeToString(hasher.Sum(nil))
+	
+	return hash, nil
+}
+
+// GenerateHostKey 生成主机唯一标识
+func GenerateHostKey(hostInfo models.HostInfo) string {
+	// 序列化主机信息
+	key := hostInfo.UUID
+	if key == "" {
+		key = hostInfo.MAC
+	}
+	return key
+}