junct8/9: Translation...
Components purchase - TPM (Trusted Platform Module) chip solution
(Guo Ch'angyu/DigiTimes.Com) 2.006/02/13 billion
Must understand the TPM chip the function, is perhaps more appropriate by analogy way showing, today do many people all have the mobile phone, what mobile phone service industry are rest on 向使customer to collect fees? The answer is SIM (Subscriber Identity Module) the card, the SIM card represents consumer individual, SIM embraces the numeral is similar to the ID card number, is only recognizes (repetition namely forge) group of numerals.
However has a group outside this to be alone in addition the numeral which as soon as recognizes, that is the handset serial number, each so long as presses down "*#06#" after the handset this group of numeral to be able to appear, the police handle a case actually are unceasingly the overlapping ratio carry on tracing to the SIM card number and the handset serial number.
In the similar truth, today many notebook computers start to construct the wisdom card (Smart Card, also called IC Card) reads the card machine, or the consumer also the computer but voluntarily purchases for own table on reads the card machine to expand, the installment, so may use Web ATM, the network declares goods, service and so on labor insurance period of service inquiry, represents individual in this so-called IC card, including the financial IC card, the health insurance IC card and so on all is.
Since has representative individual, that also equally has represents "machine", the handset has its serial number, then the computer also must have its serial number, the TPM technology is precisely proposed for this, enables the computer also to be alone as soon as recognizes. In fact as early as Intel publishes the Pentium III processor when January, 1999 in, this processing chip namely has constructs the alone serial number, at that time was called PSN (Processor Serial Number), but because the populace opposed this design, thought this design could violate individual privacy, after so that replaced the Pentium 4 chips cancelled this design.
A TPM machine serial number is different which with the handset serial number is unable easily to read out, it reads takes the process is develops algorithm processing after the encryption, equally has the transmission encryption with Smart Card/IC Card the security feature, puts briefly, the TPM chip is in inlays in the computer Smart Card, this chip serial number represents this machine, this equipment, this hardware.
TPM development course, specification standard and standard
Proposes as for the TPM standard and are the standard by who? The answer is the international level PC big plant, because Intel alone proposed PSN suffers the opposition, thought afterwards safely recognizes the technology when endorses the support together by the multi- family properties, the consumer can comparatively feel relieved picks the line, therefore in October, 1999 initiates the trust to operate the platform alliance (Trusted Computing Platform Alliance; TCPA), joins industry has Compaq, HP, IBM, Intel, Microsoft, to advocated together PC is alone as soon as recognizes.
The TCPA member's industry all is the PC big plant, therefore alone revered Wintel the flavor to be still thick, to in, 2003 had March decided will carry out the category to expand, changes the composition trust operation group (Trusted Computing Group; TCG), only then will attract outside PC from now on industry the participation response, like Nokia, Sony and so on. After TCPA changes name TCG to start to propose the TPM standard, at present most newly is 1.2 edition (in October, 2003), before is 1.1b.
To the TCG/TPM stage, has recognized the serial number no longer is only uses in PC, also includes the handset, PDA and so on other electronic installations, also supplemented the server support afterwards. But, must realize the TPM application so long as follows the TPM specification by no means, but also must follow "condition the standard", condition the platform definition and the standard and so on are (information technology security evaluation common criterion) the organization works out by Common Criteria, and includes in the ISO 15,408 international standards, in addition supports TPM the software also to have to rely on may trust the software to fold the level (Trusted Software Stack; TSS) the overhead construction only then is good.
Wintel strength very TPM
After the TPM standard proposes, first picks the line and the response are many is the notebook computer (Notebook/Laptop, also contains plate computer Tablet PC), is next for the table on the computer, also all take commercial as the main demand, provides a commercial public figure higher safety to recognize, the protection mechanism, promotes industry mainly has Acer, Dell, Fujitsu, Gateway, HP/Compaq, Lenovo/IBM, Mitsubishi, NEC, Samsung, Sony, Toshiba.
After has the server (for example IBM, Gateway PC Server), in addition also uses in to insert the type computer (Embedded PC) or the PC overhead construction regards the news 機頂 box (Set-Top Box; STB) center, instead is the handset, PDA and so on grasps the installment, although has the application which defines condition, but actually has not had the actual handset, the PDA product supports TPM.
Since supported TPM the large amount were still Laptop/Desktop PC, then the Wintel statement support must be the key, for this Microsoft proposed the code number in 2002 for the patron god (Palladium) the security technology, but also similarly suffered the question, so that in 2003 changed name for the next generation safe operation foundation (Next-Generation Secure Computing Base; NGSCB), but the field accuses as before to NGSCB, causes Microsoft with 2004 redesign NGSCB, but these technologies are also many with TPM have implicate, but, Microsoft still insisted on in Windows Vista (the research and development code number: Longhorn) center in constructs the Palladium/NGSCB technology with to support TPM.
Same Intel also supports TPM, then proposes LaGrande Technology (the abbreviation: LT), Intel all PC correlation chip will be able to support in the future with in constructs LT, including CPU and chip group, also by TPM 1.2 edition primarily.
� Wave Systems: EMBASSY 2,100
* Product characteristic
△ 32-bit ARM7TDMI RISC microprocessor, operation frequency 50MHz
What △ is safe is the clock (Real-Time Clock) RTC
△ LPC (Low Pin Count) the host controls the end or is controlled the end, may with AMD, Intel Firmware Hub lie between meets
△ in view of arranges the decipher effect, the confirmation agreement provides the protection execution environment
△ the 64KB interior quickly dodges the memory body (opening machine sub-area), the characteristic control, by the non- volatility way storage protection information
△ hard writing style chaotic number producer
△ the hardware accelerates DES, 3DES, RSA, SHA-1 arranges the decipher
△ in constructs character 4KB quickly to take the memory body
△ arranges the dense memory body to lie between the surface
△ the USB1.1 host controls the end to lie between the surface
△ accommodating 16C550 UART chip RS-232 in series lies between the surface, may use in the host to control or is controlled the transmission
△ the ISO 7,816 Smart Card A level, the B level lie between the surface
△ 56 GPIO meets the foot (definition effect utilization)
△ the keyboard lies between the surface accommodating standard keyboard matrix or the Keypad scanning matrix
△ under the protection pattern, the keyboard control chip may protect the keyboard rap input the material information, the keyboard interception formula is unable to display
△ has the interrupt controller and the timer, may support the immediate execution environment
▲ Wave Systems: EMBASSY 2,100. (Picture origin: Wave.com）
