MIFARE Ultralight AES 是恩智浦（NXP）推出的专为‌有限使用场景‌（如交通票务、酒店门禁）、可通过 AES-128 加密和增强安全机制、高性价比的非接触式智能 IC 卡，它具有以下特性：

一、安全特性

1. AES-128 加密认证‌：支持双向三阶段认证，动态生成会话密钥，防止未授权访问。
2. ‌负面认证防护‌：可选 ‌24 位单向计数器‌和命令计数器‌，限制无效认证尝试次数。
3. ‌数据完整性保护‌：通过 CMAC（Cipher-based MAC）校验通信消息，防止篡改。
4. ‌密钥锁定‌：支持写入后防修改的 AES 密钥存储机制，兼容传统 CRYPTO1 密钥。

二、性能与兼容性

1. ‌存储容量‌：144 字节 EEPROM 用户存储器，支持单次写入操作 10 万次。
2. ‌通信协议‌：符合 ISO/IEC 14443 A-2/-3 标准，工作频率 13.56MHz，传输速率 106 kbit/s，读取距离达 10cm。
3. ‌兼容性‌：存储器结构与前代 MIFARE Ultralight 系列相同，便于系统升级。
4. 支持 ‌随机 ID‌ 和 7 字节 UID，增强隐私保护。

三、应用场景

1. ‌交通票务‌：替代纸质票/二维码，支持单程票、多程票及活动门票。
2. ‌酒店门禁‌：与 Assa Abloy Vingard 锁系统集成，提供安全的客房及设施访问控制。
3. ‌会员卡/小额支付‌：适用于低成本、高安全性的限次使用场景。

四、内存结构

五、接口函数声明

'寻卡选卡激活卡
Private Declare Function piccrequest Lib "OUR_MIFARE.dll" (ByRef serial As Byte) As Byte

'寻卡选卡激活卡
Private Declare Function piccrequest_ul Lib "OUR_MIFARE.dll" (ByRef serial As Byte) As Byte

'让设备发出声响函数声明
Private Declare Function pcdbeep Lib "OUR_MIFARE.dll" (ByVal xms As Long) As Byte

'读取设备编号函数声明
Private Declare Function pcdgetdevicenumber Lib "OUR_MIFARE.dll" (ByRef devicenumber As Byte) As Byte        

'Ultralight AES卡密码认证
Private Declare Function piccauthkeyulaes Lib "OUR_MIFARE.dll" (ByRef key As Byte, ByVal keyno As Byte) As Byte

'读4页，共16个字节
Private Declare Function picculaesread Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal blockaddr As Byte, ByRef piccdata As Byte) As Byte

'FAST_READ 快读卡，可一次读1到12个页
Private Declare Function picculaesfastread Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal startaddr As Byte, ByVal endaddr As Byte, ByRef piccdata As Byte) As Byte

'写1页，共4个字节
Private Declare Function picculaeswrite Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal blockaddr As Byte, ByRef piccdata As Byte) As Byte

'锁定3-15页中的指定页
Private Declare Function picculaeslockpage3to15 Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByRef lockbytes01buf As Byte) As Byte

'锁定16-39页中的指定页
Private Declare Function picculaeslockpage16to39 Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByRef lockbytes234buf As Byte) As Byte

'Ultralight AES卡 更改配置
Private Declare Function picculaessetconfiguration Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByRef settingsbuf As Byte) As Byte

'Ultralight AES卡 锁定配置
Private Declare Function picculaeslockconfiguration Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte) As Byte

'Ultralight AES卡 锁定密码 keylockflag：1锁定DataProtKey (数据保护密码)，2锁定UIDRetrKey (UID保护密码)，&h80前面2个锁定位的锁定
Private Declare Function picculaeslockkey Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal keylockflag As Byte) As Byte

'读取卡的版本号及型号
Private Declare Function picculaesgetversion Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByRef piccversiondata As Byte) As Byte

'读取卡的单向操作计数器（操作流水号）
Private Declare Function picculaesreadcnt Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal counteraddr As Byte, ByRef picccntdata As Byte) As Byte

'卡单向计数器的值递增
Private Declare Function picculaesincrcnt Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal counteraddr As Byte, ByVal incrvalue As Long) As Byte

'读取卡的签名ECC信息（48个字节），可验证卡是否NXP正版卡
Private Declare Function picculaesreadsig Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByRef piccsigdata As Byte, ByRef piccsigdatalen As Long) As Byte

'写卡的签名原始信息（4个字节）
Private Declare Function picculaeswritesig4bytes Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal blockaddr As Byte, ByRef piccsigbytes As Byte) As Byte

'picculaeslocksig; 锁定卡的签名信息，arg：0取消锁定，1锁定，2永久锁定
Private Declare Function picculaeslocksig Lib "OUR_MIFARE.dll" (ByVal ctrlword As Byte, ByVal arg As Byte) As Byte

'VCSL功能，读取虚拟卡类型标识符
Private Declare Function picculaesvcsl Lib "OUR_MIFARE.dll" (ByRef vctid As Byte) As Byte