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104 bit user memory fully compatible with SLE 4406/06E

– 64 bit Identification Area consisting of

• 16 bit Manufacturer code (mask-programmable ROM)

• SLE 4436:

8 bit Manufacturer data, card issuer dependent (ROM)

40 bit for personalization data of card issuer (PROM)

• SLE 4436E:

48 bit for personalization data of card issuer (PROM)

– 40 bit Counter Area including 1 bit for personalization (PROM/EEPROM)

133 bit additional memory for advanced features

– 4 bit Counter Backup (anti-tearing flags)

– 1 bit initiation flag for Authentication Key 2

– 16 bit Data Area 1 for free user access

– 48 bit Authentication Key 1

– either 48 bit Data Area 2 for user defined data

or 48 bit Authentication Key 2

– 16 bit Data Area 3 for free user access

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– Five stage abacus counter

– Due to testing purposes a maximum of 21064 count units is guaranteed

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– Backup feature activated at choice

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– Random number as challenge

– Individual secret Authentication Key 1

– Optional individual secret Authentication Key 2

– Calculation of up to 16 bit response

– Calculation of a 16 bit response within 30 ms at a clock frequency of 100 kHz

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