AES是对称加密
Swift开发是使用CryptoSwift第三方库
配置方法：在Podfile文件中添加
pod ‘CryptoSwift’, ‘~> 1.6.0’
pod install即可

swift代码

 	/// AES加密/// aes_key ： key/// iv ： 偏移量static func aes_encrypt(_ str: String, aes_key: String, iv: String) -> String{var encryptedStr = ""do {//  AES encrypt//SNOfSjDz3LXjoXbN//key :Ocwgvv9RE2EqzQX1let encrypted = try AES(key:aes_key , iv:iv , padding: .pkcs7).encrypt(str.bytes)let data = Data(bytes: encrypted, count: encrypted.count)//加密结果从data转成string 转换失败  返回""encryptedStr = data.base64EncodedString(options: .lineLength64Characters)} catch {print(error.localizedDescription)}return encryptedStr}