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Search found 53 matches

by wumindejia
Mon Nov 12, 2018 2:10 am
Forum: Questions & Answers
Topic: visa CAP package
Replies: 0
Views: 17

visa CAP package

Can anyone give me a 1.6 version of the visa CAP package and related documentation?
by wumindejia
Sun Nov 11, 2018 10:36 pm
Forum: Questions & Answers
Topic: Fingerprint Demo
Replies: 4
Views: 229

Re: Fingerprint Demo

I also want it, what is the situation now?
by wumindejia
Sun Nov 11, 2018 10:30 pm
Forum: Questions & Answers
Topic: 13.56 is the frequency of the MIFARE card, then how many frequencies does the RFID have?
Replies: 2
Views: 137

Re: 13.56 is the frequency of the MIFARE card, then how many frequencies does the RFID have?

RFID is divided into low frequency (LF), high frequency (HF), ultra high frequency (UHF), and microwave (MW) according to the application frequency. The corresponding representative frequencies are: low frequency 135KHz, high frequency 13.56MHz, super High frequency 860M~960MHz, microwave 2.4G, 5.8G
by wumindejia
Thu Nov 01, 2018 4:47 am
Forum: Questions & Answers
Topic: implement x.509 certificate
Replies: 2
Views: 328

Re: implement x.509 certificate

You can sign the certificate body with the ecc private key. Then open the r and s points into the signature. For example 0220 + r + 0220 + s
by wumindejia
Wed Oct 31, 2018 2:12 am
Forum: Questions & Answers
Topic: What is the difference between ultralight and mifare?
Replies: 1
Views: 170

Re: What is the difference between ultralight and mifare?

Mifare UltraLight has no password and does not require verification.
by wumindejia
Wed Oct 31, 2018 2:06 am
Forum: Questions & Answers
Topic: The tag was read by the phone, why can't my reader read the RFID tag?
Replies: 1
Views: 175

Re: The tag was read by the phone, why can't my reader read the RFID tag?

Card readers and tags are not the same frequency. There is a special RFID card reader.
by wumindejia
Wed Oct 31, 2018 1:58 am
Forum: Questions & Answers
Topic: How to detect the frequency of a card or tag
Replies: 1
Views: 216

Re: How to detect the frequency of a card or tag

Configure the frequency of the reader, which can be connected
by wumindejia
Wed Oct 31, 2018 1:54 am
Forum: Questions & Answers
Topic: Is there a way to recover the Mifare 1K No. 0 sector?
Replies: 1
Views: 211

Re: Is there a way to recover the Mifare 1K No. 0 sector?

Generally, the block data can be rewritten only after the KeyB is verified to be correct.The initial KeyA and KeyB in each block 3 are the manufacturer's 12 "F" default values.When modifying the control value, do not modify the default passwords KeyA and KeyB first. After the control bit is successf...
by wumindejia
Mon Sep 17, 2018 3:59 am
Forum: Questions & Answers
Topic: I want to know the data format of mifare.
Replies: 2
Views: 205

Re: I want to know the data format of mifare.

You can see this document in the attachment.
by wumindejia
Fri Jun 15, 2018 4:57 am
Forum: Questions & Answers
Topic: how to judge that the class byte of APDU command is valid?
Replies: 4
Views: 271

Re: how to judge that the class byte of APDU command is valid?

According to specific specifications,Ins is generally 0x00,0x04,0x80,0x84.
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