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 ST19WP18-TPM-A
Trusted Platform Module (TPM) With Bios and WindowsTM Device Driver
DATA BRIEF
PRODUCT FEATURES SINGLE-CHIP TRUSTED PLATFORM MODULE (TPM) I EMBEDDED TPM 1.2 FIRMWARE I TPM DRIVER FOR BIOS AND WINDOWSTM 2000/XP I 33-MHz LOW PIN COUNT (LPC) INTERFACE V1.1 I COMPLIANT WITH TCG PC CLIENT SPECIFIC TPM IMPLEMENTATION SPECIFICATION (TIS) V1.2 I DEDICATED LPC COMMUNICATION BUFFER FOR TPM COMMANDS HANDLING OPTIMIZATION I TRUSTED COMPUTING GROUP (TCG)(1) V1.1B / V1.2 CONFIGURABLE MODE OF OPERATIONS I ARCHITECTURE BASED ON ST19W SECURE SMARTCARD IC PLATFORM: - 1088-bit Modular Arithmetic Processor providing Full support for Asymmetric operations - Hardware-based SHA-1 accelerator enabling BIOS related fast hash operations - FIPS 140-2 compliant Random Number Generator - Active security sensors I EEPROM-BASED NVM INCLUDING 128 BYTES OF OTP AREA FOR PRODUCTION CONFIGURATION - Highly reliable CMOS EEPROM submicron technology - 10 year data retention - 500,000 Erase/Write cycle endurance - Storage for up to 30 keys I 5 SOFTWARE-CONTROLLED GENERAL PURPOSE I/O (GPIO) PINS I POWER SAVING MODE I AVAILABLE IN RECOMMENDED TCG PC CLIENT 1.2 COMPATIBLE TSSOP28
I
I I
3.3V 10% POWER SUPPLY VOLTAGE 0-70oC OPERATING TEMPERATURE RANGE
Figure 1. Delivery Form
TSSOP28
Function RSA 1024 bits signature with CRT(1) RSA 1024 bits signature without CRT(2) RSA 1024 bits verification (e='$10001') RSA 1024 bits key generation RSA 2048 bits signature with CRT(2) RSA 2048 bits verification (e='$10001')
Speed(1) 62 ms 206 ms 4 ms 1.8 s 416 ms 66 ms
1. Typical values, independent of external clock frequency and supply voltage. 2. CRT: Chinese Remainder Theorem.
1. TCG website: http://www.trustedcomputinggroup.org
October 2004
For further information contact your local ST sales office.
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ST19WP18-TPM-A
GENERAL DESCRIPTION
The ST19WP18-TPM-A is a cost effective Trusted Platform Module (TPM) solution. The ST19WP18TPM-A is designed to provide PC platforms with enhanced security and integrity mechanisms as defined by Trusted Computing Group standards. The product provides full support of TCG v1.1b as well as TCG v1.2 specifications. ST19WP18-TPM-A is based on the ST19WP18 silicon product. The ST19WP18 is driven from the Smartcard IC ST19W platform. It is manufactured using the advanced highly reliable STMicroelectronics CMOS EEPROM technology. The ST19WP18 has an 8-bit CPU architecture and includes the following on-chip memories: User ROM, User RAM and EEPROM with state of the art security features. ROM, RAM and EEPROM memories can be configured into partitions with customized access rules. The ST19WP18 also includes a Modular Arithmetic Processor (MAP). The 1088 bits architecture of this cryptographic engine allows processing of modular multiplication, squaring and additional calculations up to 2176 bit operands. The Modular Arithmetic Processor is designed to speed up cryptographic calculations using Public Key Algorithms. The Secure Hash Accelerator allows fast SHA-1 computation especially well suited for BIOS hash operations during early boot stages. The ST19WP18 has been specially designed in line with TCG PC Client Specific TPM Implementation Specification (TIS) referring to Intel's LPC Specification revision 1.0.
Figure 2. ST19WP18 Block Diagram
ST ROM and Crypto Libraries EDES Accelerator
RAM
EEPROM
User ROM
MAP 1088 bits
MEMORY ACCESS FIREWALL
ST ROM, MAP and DES FIREWALL
INTERNAL BUS
CRC module
Clock Generator module
3x 8 bit Timers
Security Admin.
Gun A & Gun B
8 bit CPU
1x Serial interface
RAM 2K LPC interface
5x General purpose I/Os interface
SHA Module
LCLK
RESET
Vps
Gnd
I/O
LFrame LPCPD Lad3 Lad0 PP Lad2 Lad1 SERIRQ
Gpi01 Gpi02 Gpi03 Gpi04 Gpi05 537
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ST19WP18-TPM-A
SOFTWARE DESCRIPTION
Embedded TPM firmware The ST19WP18 includes fully compliant TCG v1.1b TPM firmware which supports features like cryptographic key generation, integrity metrics and secure storage. In addition, the product is TCG v1.2 ready and provides support for functions such as Delegation, Transport session and Locality. This TCG v1.1b / v1.2 compliant TPM firmware uses an optimized and flexible software architecture allowing the integration of Trusted Computing Framework enhancements or implementation of dedicated functions. Software Stack To enable its integration on PC motherboards, ST19WP18-TPM-A provides BIOS and Microsoft WindowsTM drivers. Memory Absent (MA) and Memory Present (MP) BIOS drivers source codes are made available for easy integration into compound or integrated BIOSes. Both provide means for BIOS to access TPM resources in memory - less or post BIOS system environments. In addition a WindowsTM 2000/XP driver is also supplied in the form of a TPM Device Driver (TDD) running in Kernel mode and a TPM Device Driver Library (TDDL) running in User mode. Please contact ST for a complete list of supported operating systems.
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ST19WP18-TPM-A
The ST19WP18-TPM-A bring OEMs a compact TPM solution for their PC platforms. Figure 3. Software Layers
Application 1
Application 2
Application 3 Cryptographic Infrastructure Interface
PKCS# 11 CSP
MS CAPI CSP TSP Interface
TSS Service Provider - TSP TCS Interface OS User Mode TSS Core Services - TCS TDDL Interface TPM Device Driver Library - TDDL
OS Kernel Mode
TPM Device Driver - TDD
TPM BIOS Drivers
Memory Absent Driver - MAD
Memory Present Driver - MPD
Hardware & Firmware
ST19WP18 + Embedded TPM Firmware
Subsystems included in the ST19WP18-TPM-A solution 534
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ST19WP18-TPM-A
PIN AND SIGNAL OVERVIEW
Figure 4. Pinout description
GPIO1 GPIO2 IO GND NC GPIO3 PP NC GPIO4 VPS GND NC NC NC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 TSSOP28
28 27 26 25 24 23 22 21 20 19 18 17 16 15
LPCPD# SERIRQ LAD0 NC VPS LAD1 LFRAME# LCLK LAD2 NC GND LAD3 LRESET# GPIO5/CLKRUN#
Table 1. Signal description
Signal LAD[3:0] LPCPD# Type Bidir Input Description Multiplexed Command, Address and Data (see LPC Interface Spec) Power Down indicates that the peripheral should prepare for power to be removed from the LPC i/F devices. Actual power removal is system dependent (see LPC Interface Spec) Clock Same 33Mhz clock as PCI clock on the host. Same clock phase with typical PCI skew. (see LPC Interface Spec) Frame indicates start of a new cycle, termination of broken cycle (see LPC Interface Spec) Reset same as PCI Reset on the host (see LPC Interface Spec) Serialized IRQ is used by TPM to handle interrupt support (see LPC Interface Spec) General Purpose IO, weak internal pull-up fully configurable by Software CLKRUN# same as PCI CLKRUN#. Only needed by peripherals that need DMA or bus mastering in a system that can stop the PCI bus (generally in mobile systems) Physical Presence, active high, internal pull-down. Used to indicate Physical Presence to the TPM General Purpose IOs with weak internal pull-up fully configurable by Software Bidirectional IO ISO 7816-2 compliant serial port 3.3v Power supply. VPS has to be connected to 3.3v DC power rail supplied by the motherboard Zero volts ground reference. GND has to be connected to the main mother board ground
LCLK LFRAME# LRESET# SERIRQ GPIO5/CLKRUN#
Input Input Input Bidir Bidir
PP GPIO[4:1] IO VPS GND
Input Bidir Bidir Input Input
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ST19WP18-TPM-A
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners (c) 2004 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
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