如何访问使用 MIFARE 应用程序目录结构的 MIFARE Classic 卡？
[英]How to access a MIFARE Classic card that uses the MIFARE Application Directory structure?
问题描述
How can I make authenticate and read data from a MIFARE Classic card that is formatted with the MIFARE Application Directory structure?
如何从使用 MIFARE 应用程序目录结构格式化的 MIFARE Classic 卡进行身份验证和读取数据？ I'm using Android.我正在使用安卓。
1 个解决方案
解决方案1
14 已采纳 2015-10-07 06:07:34
See NXP's application note on the MIFARE Application Directory .请参阅恩智浦关于MIFARE 应用程序目录的应用说明。 Typically, in order to read data from a MIFARE Classic card that makes use of the MAD, you would do something like the following:通常，为了从使用 MAD 的 MIFARE Classic 卡读取数据，您需要执行以下操作：
- Authenticate to sector 0 (MAD sector) using key A
A0 A1 A2 A3 A4 A5(the public MAD read key).使用密钥 A A0 A1 A2 A3 A4 A5（公共 MAD 读取密钥）对扇区 0（MAD 扇区）进行身份验证。 - Read block 3.读取块 3。
- Based on the general purpose byte (byte 9 read from block 3), you can determine根据通用字节（从块 3 读取的字节 9），您可以确定
- if the card uses the MAD (bit 7 = 1),如果卡使用 MAD（位 7 = 1），
- if the card supports multiple applications (bit 6 = 1), and如果卡支持多个应用程序（位 6 = 1），以及
- the MAD version (bits 1-0). MAD 版本（位 1-0）。
- if the card uses the MAD (bit 7 = 1),
Read blocks 1 and 2, these blocks have the following format (where
AIDxis the application ID assigned to sector number x ):读取块 1 和 2，这些块具有以下格式（其中AIDx是分配给扇区号x的应用程序 ID）：+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Byte | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Block 1 |CRC |INFO| AID01 | AID02 | AID03 | AID04 | AID05 | AID06 | AID07 | +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Block 2 | AID08 | AID09 | AID10 | AID11 | AID12 | AID13 | AID14 | AID15 | +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+Verify the CRC (block 1, byte 0).
验证 CRC（块 1，字节 0）。- Browse through the AID list (as generated from the data of blocks 1 and 2) to find your application AIDs (and consequently to find the sectors that contain your application data).浏览 AID 列表（根据块 1 和 2 的数据生成）以查找您的应用程序 AID（从而找到包含您的应用程序数据的扇区）。
If MAD version 2 is used, authenticate to sector 16 and read blocks 0 (64), 1 (65), and 2 (66) in order to get the extended AID list.
如果使用 MAD 版本 2，验证扇区 16 并读取块 0 (64)、1 (65) 和 2 (66) 以获得扩展的 AID 列表。 The format of these blocks is:这些块的格式是：+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Byte | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Block 0 |CRC |INFO| AID17 | AID18 | AID19 | AID20 | AID21 | AID22 | AID23 | +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Block 1 | AID24 | AID25 | AID26 | AID27 | AID28 | AID29 | AID30 | AID31 | +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+ Block 2 | AID32 | AID33 | AID34 | AID35 | AID36 | AID37 | AID38 | AID39 | +----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+----+Authenticate to the sectors of your application (as discovered through the AID list) and read/write the data of your application.
对应用程序的扇区进行身份验证（通过 AID 列表发现）并读取/写入应用程序的数据。
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