3.1 Serial Numbers......................................................................................................................16
3.2 Answer to SELECT command (ATS Code)..........................................................................16
MIFARE
M01040.doc/RMPage 2 of 18
is a registered trademark of Philips Electronics N.V.
General DescriptionRev. 4.01998-07-24
1 General Description
The contactless MIFARE 1 S50 smart card IC has been especially tailored to meet the requirements
of a payment card which can be used for ticketing systems in public transport and comparable
applications. MIFARE 1 S50 IC is a true multi-application smart card IC with the functionality of a
processor realised with hardwired logic.
Special emphasis has been placed on user convenience, speed, reliability, security against fraud and
cost effectiveness.
User convenience and speed
A transaction between the card (card IC) and the reader defined by the system integrator or the
service provider takes place when the card holder approximates the card to the reader. The
permissible distance between antenna (target) and card is up to 100 mm free air. On the one hand,
this enables users to carry out the transaction fast and conveniently. On the other, card holders
decide in a distinct action whether they want a transaction to happen or not.
Philips has developed a high speed RF communication interface with 106 Kbaud data rate for
MIFARE®. Due to this high speed a complete ticketing transaction can be handled in less than 0.1
seconds. Thus, the MIFARE card user needs not to stop at the reader target (antenna) leading to a
high throughput at gates and reduced boarding times onto busses.
Additional user comfort is added, since MIFARE cards typically have the size of a credit card and
do not have to be taken out of the wallet during the transaction, even if there are coins in the wallet.
Anticollision
Basically, if more than one card enters the operating field, which is very likely to happen, the fast
anticollision algorithm prevents that data transmitted between the different cards and the target is
being confused. Cards can be selected individually. An ongoing transaction with a selected card is
not corrupted by cards remaining in the field or cards moved into or out of the field. Possible data
corruption caused by more than one card in the field or fraud are avoided.
For example, if MIFARE card users have more than one MIFARE card in their wallet, the
anticollision algorithm enables the system to select the appropriate card for the transaction.
Security
Mutual challenge and response authentication, data ciphering and message authentication checks
protect the system from any kind of fraud and make it attractive for electronic purse applications.
These mechanisms are carried out very fast and add only little to transaction time. Serial numbers
which can not be altered guarantee uniqueness of the cards.
Multi-functionality
The multifunctional memory structure of MIFARE 1 S50 cards IC allows the use of the card in
multi-application systems. The different applications are securely separated by user definable key sets
and access conditions.
Reliability
High reliability of the system is achieved by using solid state components without any moving
mechanical parts. The MIFARE cards are passive, i.e. they are working without battery. Further,
the extremely simple construction of a card which consist only of a coil with few turns and a chip
embedded in plastic does its share to accomplish this. In addition,
the contactless technology avoids that contacts become worn out and reduces risk and cost of
vandalism.
M01040.doc/RMPage 3 of 18
General DescriptionRev. 4.01998-07-24
1.1 Features of the MIFARE
•Operating frequency:13.56 MHz
•High speed:Baudrate 106 kBaud
•Anticollision:The ability to handle more than one card in the field at the same
System
time.
•Operating distance: up to 100mm (depending on antenna geometry)
to allow convenient and fast transaction
•Half duplex communication protocol using handshake
•Data integrity via contactless communication link by
•Anticollision
•16 Bit CRC per block
•16 Bit Parity per block (one per Byte)
•Bit count checking
•Bit coding to distinguish between "1", "0", and no information
•Channel monitoring (Protocol sequence and bit stream analysis)
•Multi-Card-operation supporting:
•Anticollision: allows the handling of more than one card in the field at the same
time;
inhibits accidental read or write and data corruption due to more
than one card in the field
•Dynamic read + write:during communication with one card other cards may enter or
leave the RF field
•Fast anticollision protocol: an increase of only 1.0 ms of the total transaction time
for each additional card
1.2 MF1 IC S50 Card IC:
•State of the art chip technology: high speed CMOS EEPROM process
•Single chip construction with no external components besides a simple coil
is required for card.
•No batteryContactless energy and data transmission
Security
•Mutual three pass authentication (ISO/IEC DIS9798-2)
•Data encryption on RF-channel with replay attack protection
•Individual key set per sector (per application) to support
multi-application with key hierarchy
•Unique card serial number
•Transport key
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General DescriptionRev. 4.01998-07-24
Multi-application memory
•8 KBit EEPROM memory, no battery,
•Organised in securely separated 16 sectors supporting multi-application use.
•Each sector consists of 4 blocks.
•A block is the smallest part to be addressed and consists of 16 bytes.
•Each sector has its own secret file for a set of keys for systems using key hierarchies.
•Access to memory zones are flexible user definable by a variety of access conditions.
•Arithmetic capability: increase and decrease
•Data retention of 10 years.
•write endurance 100.000 cycles
Typical Transaction Time
•Identification of a card 3 ms (Start-up, Answer to Request, Anticollision, Select)
•Read Block (16 Bytes)2.5 ms (excl. Authentication)
4.5 ms (incl. Authentication)
•Write Block + Control Readmin 8.5 ms (excl. Authentication)
ADDENDUM MIFARE Standard Card IC MF1ICS50 03
Wafer Specification
Die on 6“ Wafer
ADDENDUM MIFARE Standard Card IC MF1ICS50 04
Wafer Specification
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Functional DescriptionRev. 4.01998-07-24
2 Functional Description
2.1 Block Description
MIFARE MF1ICS50 CARD IC
RF-Interface
Voltage
Regulator
Clock
Data
Modulator
Demodulator
POR
E²POR
Energy
ATR
Anti
Collision
Select
Application
Authentication
& Access Control
Digital Section
Control
&
Arithmetic
Unit
Crypto
Unit
E²
Inter
face
E²-Memory
The electronic unit of a card comprises just an antenna (coil) and the IC (MIFARE 1 MF1ICS50)
and no further external components.
2.2 Antenna:
The card antenna consists of a few windings and thus, it is very suitable for integration into an ISO
card. (refer to the document MIFARE Card IC Coil Design Guide).
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