Blue KeyRing NFC Tags NXP Mifare DESFire EV1 4K MF3ICD41 Type 4 ISO14443A Tag Nexus 4

Available Memory is 4K (4094 Bytes)
Type 4 Tag suitable for All SmartPhone, Even if New Models.

Features and benefits
1. RF interface: ISO/IEC 14443 Type A
Contactless transmission of data and powered by the RF-field (no battery needed)
Operating distance: up to 100 mm (depending on power provided by the PCD and antenna geometry)
Operating frequency: 13.56 MHz
Fast data transfer: 106 kbit/s, 212 kbit/s, 424 kbit/s, 848 kbit/s
High data integrity: 16/32 bit CRC, parity, bit coding, bit counting
True deterministic anticollision
7 bytes unique identifier (cascade level 2 according to ISO/IEC 14443-3 and option for random ID)
Uses ISO/IEC 14443-4 protocol
2. ISO/IEC 7816 compatibility
Supports ISO/IEC 7816-3 APDU message structure
Supports ISO/IEC 7816-4 INS code ‘A4’ for SELECT FILE
Supports ISO/IEC 7816-4 INS code ‘B0’ for READ BINARY
Supports ISO/IEC 7816-4 INS code ‘D6’ for UPDATE BINARY
Supports ISO/IEC 7816-4 INS code ‘B2’ for READ RECORDS
Supports ISO/IEC 7816-4 INS code ‘E2’ for APPEND RECORD
Supports ISO/IEC 7816-4 INS code ‘84’ for GET CHALLENGE
Supports ISO/IEC 7816-4 INS code ‘88’ for INTERNAL AUTHENTICATE
Supports ISO/IEC 7816-4 INS code ‘82’ for EXTERNAL AUTHENTICATE
3. Non-volatile memory
4 kB NV-Memory
Data retention of 10 years
Write endurance typcial 500 000 cycles
4. NV-memory organization
Flexible file system
Up to 28 applications simultaneously on one PICC
Up to 32 files in each application (standard data file, back-up data file, value file, linear record file and cyclic record file)
File size is determined during creation
5. Security
Common Criteria Certification: EAL4+ (Hardware and Software)
Unique 7 bytes serial number for each device
Optional "RANDOM" ID for enhance security and privacy
Mutual three pass authentication
Mutual authentication according to ISO/IEC 7816-4
1 card master key and up to 14 keys per application
Hardware DES using 56/112/168 bit keys featuring key version, data authenticity by 8 byte CMAC
Hardware AES using 128-bit keys featuring key version, data authenticity by 8 byte CMAC
Data encryption on RF-channel
Authentication on application level
Hardware exception sensors
Self-securing file system
Backward compatibility to MF3ICD40: 4 byte MAC, CRC 16
6. Special features
Transaction oriented automatic anti-tear mechanism
Configurable ATS information for card personalisation
Backward compatibility mode to MF3ICD40
Optional high input capacitance (70pF) for small form factor design (MF3ICDH 21/41/81)

Applications
Advanced public transportation schema
Highly secure access management
Closed-loop e-payment scheme
Event ticketing
eGovernment applications


MIFARE DESFire EV1 (MF3ICD(H) 41), a Common Criteria (EAL4+) certified product, is ideal for service providers wanting to use secure multi-application smart cards in public transport schemes, access management or closed-loop e-payment applications. It is fully complies with the requirements for fast and highly secure data transmission, flexible memory organization and interchangeability with existing infrastructure.
MIFARE DESFire EV1 is based on open global standards for both air interface and cryptography methods. It is compliant to all 4 levels of ISO/IEC 14443A and uses optional ISO/IEC 7816-4 commands.
Featuring an on-chip backup management system and the mutual three pass authentication, a MIFARE DESFire EV1 card can hold up to 28 different applications and 32 files per application. The size of each file is defined at the moment of its creation, making MIFARE DESFire EV1 a truly flexible and convenient product.
Additionally, an automatic anti-tear mechanism is available for all file types, which guarantees transaction oriented data integrity. With MIFARE DESFire EV1, data transfer rates up to 848 kbit/s can be achieved, allowing fast data transmission.
The main characteristics of this device are denoted by its name "DESFire": DES indicates the high level of security using a 3DES or AES hardware cryptographic engine for enciphering transmission data and Fire indicates its outstanding position as a fast, innovative, reliable and secure IC in the contactless proximity transaction market. Hence, MIFARE DESFire EV1 brings many benefits to end users. Cardholders can experience convenient contactless ticketing while also having the possibility to use the same device for related applications such as payment at vending machines, access control or event ticketing. In other words, the MIFARE DESFire EV1 silicon solution offers enhanced consumer-friendly system design, in combination with security and reliability.
MIFARE DESFire EV1 delivers the perfect balance of speed, performance and cost efficiency. Its open concept allows future seamless integration of other ticketing media such as smart paper tickets, key fobs, and mobile ticketing based on Near Field Communication (NFC) technology. It is also fully compatible with the existing MIFARE reader hardware platform. MIFARE DESFire EV1 is your ticket to contact less systems worldwide.