mifare

Android: Authenticating with NXP MiFare Ultralight C

由 左心房为你撑大大i 提交于 2019-11-27 03:43:12
问题 I have been trying for more than a week to make an Android phone authenticate with a Mifare Ultralight C. I have confirmed I can write to the tag (by writing to an unsecured memory page and then reading what I wrote). I can also write to the key pages (44-47) and have written 0x00 for all 16 key bytes. When I try to authenticate, the following is an example of the data involved during one exchange - it is from a log written by my application. Can anyone tell me if I am doing something

NTAG212 Mifare Ultralight with Authentication

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-11-27 03:02:46
问题 I am new to NFC Android and I have been stuck for days trying to get the Page 4 to page 7 of NTAG212 Mifare Ultralight with Authentication , I already have the PWD and PACK to do the PWD_AUTH based on the NTAG212 Docs. I do this approach... //assume password as array of bytes //assume pack as array of bytes try{ nfc.connect(); byte[] cmd1 = nfc.transceive(new byte[]{ (byte) 0x30, (byte) 0x00 }); //read the page 0 to make the NFC active nfc.transceive(new byte[]{ (byte) 0x1B, //command for PWD

Android NFC communication with Mifare DESFire EV1

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-11-27 02:27:00
问题 Using a Nexus 4 and the latest Android API level 18 to communicate with a Mifare DESFire EV1 AES tag is giving me a headache. Following the NXP native protocol in order to write and read this type of tag, these steps must be followed: Select application Authenticate Write or Read To do it so, I use Android's IsoDep class which provides access to ISO 14443-4 properties and I/O operations. The very weird thing about it is that once I send the select application native command I get an

Emulate Mifare card with Android 4.4

由 白昼怎懂夜的黑 提交于 2019-11-26 11:16:45
I have researched Mifare and other card emulation I have very good knowledge in programming (not Android, but C/C++). I have proxmark and I have made multiple emulation codes for proxmark, so I know how the cards communicate. I don't understand currently, does android enable full card emulation. I have researched this for about 3 days now, and the conclusion is there is no one constant pattern. Some people say it is possible, some say it is not. I looked through android API and the Host-based card emulation seems to be able to do the trick, but as I understand it is new thing in 4.4 Kitkat,

Emulate Mifare card with Android 4.4

由 喜夏-厌秋 提交于 2019-11-26 02:19:43
问题 I have researched Mifare and other card emulation I have very good knowledge in programming (not Android, but C/C++). I have proxmark and I have made multiple emulation codes for proxmark, so I know how the cards communicate. I don\'t understand currently, does android enable full card emulation. I have researched this for about 3 days now, and the conclusion is there is no one constant pattern. Some people say it is possible, some say it is not. I looked through android API and the Host
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