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ST19WP18
Trusted Platform Module (TPM)
DATA BRIEF
PRODUCT FEATURES SINGLE-CHIP TRUSTED PLATFORM MODULE (TPM) I EMBEDDED TPM 1.2 FIRMWARE I FULL TPM SOLUTION WITH COMPLETE TCG COMPLIANT SOFTWARE STACK LAYERS 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
I I I I
POWER SAVING MODE AVAILABLE IN RECOMMENDED TCG PC CLIENT 1.2 COMPATIBLE TSSOP28 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')
1. 2.
Speed(1) 62 ms 206 ms 4 ms 1.8 s 416 ms 66 ms
Typical values, independent of external clock frequency and supply voltage. CRT: Chinese Remainder Theorem.
1. TCG website: http://www.trustedcomputinggroup.org
May 2004
For further information contact your local ST sales office.
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ST19WP18
GENERAL DESCRIPTION
The ST19WP18 is a cost effective Trusted Platform Module (TPM) solution. The ST19WP18 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 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. Figure 2. Block Diagram
ST ROM, RF and Crypto Libraries EDES Accelerator
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.
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
CLK
RESET
Vcc 2
Gnd 2
I/O0
LFrame LPCPD Lad3 Lad0 PP VBAT Lad2 Lad1 SERIRQ 514 Gpi/0
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SOFTWARE DESCRIPTION
Embedded firmware The ST19WP18 includes fully compliant TCG v1.1b 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 firmware uses an optimized and flexible software architecture allowing the integration of Trusted Computing Framework enhancements or implementation of dedicated functions. TCG Software Stack The ST19WP18 provides complete system software layers, fully compliant with TCG Trusted Software Stack specification. Microsoft WindowsTM 2000/XP operating systems are supported. Please contact ST for a complete list of supported operating systems. The embedded firmware plus additional modules bring OEMs a complete TPM solution for their PC platforms. Figure 3. Software Layers The software stack comprises the following modules: - BIOS Memory Absent driver (MA) - BIOS Memory Present driver (MP) - TPM Device Driver (TDD) - TPM Device Driver Library (TDDL) - TSS Core Services (TCS) - TSS Service Provider (TSP) Cryptographic infrastructure interface Secure and trustworthy functions of the ST19WP18 module are made available to applications through cryptographic Application Programming Interfaces (APIs) compliant either to PKCS#11standard or to the MS CAPI specification. An ST19WP18 ready Cryptographic Service Provider (CSP) can then be used to enhance Operating System security policies or applications security plug-ins which take full advantage of the secure TPM functionalities such as sealed storage, key generation, signature and encryption.
Application 1
Application 2
Application 3 Cryptographic Infrastructure Interface
PKCS# CSP OS User Mode TSS Service Provider
MS CAPI CSP TSP Interface
TCS Interface TSS Core Services TDDL Interface TPM Device Driver Library OS Kernel Mode
TPM Device Driver
TPM BIOS MA Driver
TPM BIOS MP Driver
Hardware
ST19WP18 - TPM
System Processes User Processes
ai09876
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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 motherboard 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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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 BULL CP8 Patents 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 www.st.com
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