1/3 preliminary data this is brief data from stmicroelectronics. details are subject to change without notice. for complete data, please contact your nearest sales office or smartcard products divison, rousset, france. fax: (+33) 4 42 68 87 29 ST19XL34 smartcard ic with 34kbytes high density eeprom and modular arithmetic processor ST19XL34 features n enhanced 8 bit cpu with extended ad- dressing modes n 96k bytes user rom with partitioning n 4k bytes user ram with partitioning n 34k bytes user eeprom with parti- tioning C highly reliable cmos eeprom 0.35m sub- micron technology C error correction code for single bit fail correc- tion C 10 year data retention C 100,000 erase/write cycles endurance C correction of single bit fail within a byte(ecc) C 1 to 64 bytes erase or program in 2 ms n security firewalls for memories n very high security features includ- ing eeprom flash program, and clock management. n 3x8 bit timers with interrupt capabili- ty n hardware des accelerator n 1088 bit map: modular arithmetic proc- essor with library support for asy- metric algorithms n cryptographic library: C asymmetrical algorithms : fast modular multiplication and squaring us- ing montgomery method software crypto libraries in separate rom area for efficient algorithm coding using a set of advanced functions software selectable operand length up to 2176 bits C symmetrical algorithms : des, triple des, desx computations and cbc chaining mode n crc calculation block n up to 10mhz internal operating fre- quency n unique serial number on each die n power saving standby mode n contact assignment compatible iso 7816-2 n 2 serial access, iso 7816-3 compatible n esd protection greater than 5000v n 3v 10% or 5v 10% supply voltage figure 1 delivery form (1)typical values, independent from external clock frequency and supply voltage. (2)crt: chinese reminder theorem. function speed (1) rsa 1024 bits signature with crt (2) 110 ms rsa 1024 bits signature without crt (2) 367 ms rsa 1024 bits verification (e=$10001) 7 ms rsa 1024 bits key generation 3.2 s rsa 2048 bits signature with crt (2) 740 ms rsa 2048 bits verification (e=$10001) 118 ms triple des (with keys loaded) 31 s single des (with keys loaded) 19 s 4 4 4 4 wafer micromodule notch september 2000
2/3 ST19XL34 september 2000 hardware description the ST19XL34, a member of the st19 platform, is a serial access microcontroller especially de- signed for very large volume and cost effective se- cure portable objects, for which high performance public key and secret key algorithms will be im- plemented to cut down initialization and communi- cation costs and to increase security. the chip includes a des accelerator which is ac- cessible via a cryptographic system rom soft- ware library. the chip includes also a map which is based on a 1088 bits processor architecture. it processes modular multiplication, squaring and additional calculations up to 2176 bit operands internal modular arithmetic processor (map) and des accelerator are designed to speed up crypto- graphic calculations using public key algorithms and secret key algorithms. the ST19XL34 is based on a stmicrolectronics 8 bit cpu and includes on chip memories: 96k user rom, 4k user ram and 34k user eeprom with state of the art security features. rom, ram and eeprom memories can be con- figured into partitions with customized access rules. access from any memory area to another. are protected by hardware firewalls. access rules are user defined and can be selected by mask options or during the life of the product. a crc calculation block is also available and is di- rectly accessible by the user. it is manufactured using an advanced highly relia- ble st cmos eeprom technology. as with all the other st19 products, it is fully com- patible with the iso7816 standard for smartcard applications. figure 2 block diagram 217ds.c internal bus 8 bit cpu 3x 8bit timer security ram bytes eeprom bytes user rom bytes system rom an d des / map firewall memory access firewall clk system rom and crypto libraries reset vcc i/o gnd administrator a clock genera- tor module gun a,b serial i/o inter- face 4k 96k 34k map 1088 bits des acce- lera- tor crc module
3/3 september 2000 ST19XL34 software development software development and firmware (rom code/ options) generation are done with the st19-hdsx development system, on windows nt or windows 98. powerfull c/c++ compiler, debugger and sim- ulator are also available. cryptographic libraries for an easy and sufficient use of the modular arithmetic processor (map), st proposes a com- plete set of firmware subroutines. this library is lo- cated in a specific rom area. this library saves the operating system designer from coding first layer functions and allows the designer to concen- trate on algorithms, public key cryptography and secret key cryptography protocols implementa- tion. this library contains firmware functions for: asymmetrical algorithms : C loading and unloading parameters and results to or from the map C calculating montgomery constants C basic mathematics including modular squaring and multiplication for various lengths C modular exponentiation using or not the chi- nese remainder theorem (crt) C more elaborate functions such as rsa signa- tures and verifications for modulo length up to 2176 bits long, dsa signature and authentica- tion. C full internal key generation for signatures/verifi- cations. this guarantees that the secret key will never be known outside the chip and contrib- utes to overall system security. C long random number generation C rsa up to 2176 bits C dsa up to 1088 bits Csha-1 C rsa key generation symmetrical algorithms : C des, triple des, desx computations C cbc chaining mode C loading / unloadings from / to registers are se- cured against spa
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