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DATA BRIEF

December 2003

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.

ST22FJ1M

Smartcard 32-Bit RISC MCU with 1 Mbytes

FLASH & Javacard™ HW Execution

PRODUCT FEATURES

MEMORY ADDRESSING

32-BIT RISC CPU

AND NATIVE

AND 11 SPECIAL REGISTERS

SECURITY

– DES and 3DES instructions

– Fast Multiply and Accumulate instructions for

Public Key and Elliptic Curve Cryptography

SENSORS

– Memory Protection Unit for application

firewalling and peripheral access control

– Domain switching securely controlled by

protected Context Stack

– Native/Java, Code/Data memory attributes

with 256-byte granularity for Page-Flash, and

8-Kbyte granularity for Flash and ROM

– Each FLASH sector can be independently set

as read-only

– Java stack with both 16 and 32-bit accesses

– User and Supervisor mode stacks

– Security Context stack

Figure 1. Delivery Form

CRYPTOGRAPHIC LIBRARY

– Software Crypto libraries in separate ROM

area for efficient algorithm coding using a set

of advanced functions. RSA, signature/

verification

– RSA key calculation including Prime number

generation SHA-1

– DES, Triple DES, AES

CRYPTOGRAPHY PERFORMANCE

The following table provides the cryptographic

performances of the ST22FJ1M based on ST

Crypto Library.

Table 1. Preliminary Cryptographic

Performances

Note: 1) Internal clock at 33 MHz

Note: 2) CRT: Chinese Reminder Theorem

Algorithm

Function

RSA

1024 bits

Signature with CRT

79.0 ms

242.0 ms

Verification (e=0x10001)

3.6 ms

RSA

2048 bits

Signature with CRT

485.0 ms

Signature without CRT

1.7 s

Verification (e=0x10001)

11.0 ms

DES

Triple

18 µs

Single

8 µs

SHA-1

512-bit Block

194 µs

AES-128

Encryption including subkey

computation

85 µs

Micromodule

Wafer