The so-called TPM security chip, is consistent with the TPM (Trusted Platform Module) standard security chip, it can effectively protect PC, prevent unauthorized user access.
从2002年底IBM 率先发布了业界第一款带有嵌入式安全子系统的笔记本电脑至今，主流PC制造商惠普、戴尔等都已推出各自的安全PC。. 而在芯片技术方面，2003年4 月，TCG 成员、美国国家半导体公司推出SafeKeeper安全芯片，并应用于IBM 安全PC。.But in March 2005, the semiconductor companies to "focus on analog IC business", will represent 4% of the total company revenues in the PC business, together with its TPM technology fully transferred to Taiwan semiconductor company — Winbond. The current latest version is 1. .2. In line with the TPM chip, first of all you must have the generate function of encryption and decryption keys, and also must be able to conduct high-speed data encryption and decryption, as well as protect the BIOS and the operating system cannot be modified by a secondary processor.
TPM security chip. .
The essence of TPM security chip is an independent key generation, encryption and decryption devices, internal independent processor and storage unit, you can store the key and the characteristics of the data provided for books, encryption and security certification service. More specifically, the TPM security chip was both a key generator, and a key management device that provides a uniform programming interface (in fact, our daily use of the TPM software to communicate with the TPM chip in the bottom port). Key is the only key to open the encrypted file, TPM security chip, an important role in the strengthening of key management, chip to the hardware to generate, store and manage keys, TPM security chip can be stored by the TPM key controller non-volatile memory protection. .
TPM hardware features include many features, including:.
First, TPM security chip key randomly generated by the hardware for the system of encryption and decryption, to securely store and transmit confidential information. As the operations concentrated in the TPM security chip, therefore, compared with the software key is generated, it can also improve system performance and encryption performance. .
Second, the TPM security chip uses a special algorithm to authenticate the notebook system software and hardware. For any notebook hardware changes will be monitored to avoid all kinds of hardware and software attacks.
Third, TPM security chip provides initialization and management functions that allow legitimate users to enable or disable chip, re-initialize the chip functions. .
TPM security chip uses a very wide range, with special software can achieve the following purpose:.
1, storage, management BIOS boot password and hard drive password. The past, these services are done by the BIOS, played my friends may know, forgot to remove BIOS password as long as the battery to discharge to clear the BIOS password. Today, these keys are actually stored in the curing of the storage unit in the chip, even power-down their messages are not lost. Compared with BIOS management password, TPM security chip to greatly improve the safety. .
2, TPM security chip can carry out a broad range of encryption. TPM security chip, in addition to the traditional post encryption and encrypts the hard drive, you can log on to the system log and application software. For example, at present we commonly used MSN, QQ, online games, and Internet Banking login information and password, to pass through the TPM encrypts before transmission so that you do not have to worry about information and passwords were stolen.
3, any hard disk partition encryption. We can encrypt any books on a hard disk partition, you can put some sensitive documents to the district to ensure safety. In fact, some books manufacturers to use a key recovery is one of the purposes embodied (which will be mirrored in a TPM system partition encryption). .
Currently offer TPM security chip manufacturers, since it is not in the face of the final consumer, it may be unfamiliar. Due to foreign countries for TPM security chip, started earlier, hence foreign manufacturers has considerable advantages. Overseas production of TPM security chip's major manufacturers are: Infineon, STMicroelectronics (ST), Atmel, Winbond Electronics (buying national), etc..
Development of domestic manufacturers in this area started late, at present only Lenovo's "Hang Chi" chips and megabytes on the company's products. Lenovo, as the PC R & D, manufacturing and sales of manufacturers, why should the security chip? Lenovo Group Vice President, Research Institute Zhiqiang interview with this reporter said: "The security chip is a system technology, chip design company alone can not achieve the system optimal; Lenovo as the system vendors want to implement their own system the best, to make their products with core competitiveness."As far as he said, the Lenovo as early as 2000 layout system security technology research and development, initiated in 2003, and currently has an" international leadership "and as" the only company in the world including chip hardware, Fireware, drivers, software protocol stack, supporting management tools, such as the trust chain software a full technology and product manufacturers ".
Trillion on technology, access to the password of another chip vendor certification authority, from the last century since the late 90's R & D has successfully developed a line with TPM V1. .2 Standard security chip (SSX35) and solutions. Siu Yat TPM security chip (SSX35) has Tongfang, Founder, Great Wall Computer PC on the new security push to achieve the application, not only that, some international PC manufacturers are also working with the trillion on technology to discuss, and begin testing or using trillion on technology and solutions for the security chip.Sony BX245PC notebook internal integration of Siu, TPM chip with power-on password, BIOS password protection, hard drive password, fingerprint authentication system and other safety, so that the consumer's file data more secure and reliable; SONY BX245 is by far, the only country in the World Commission on the international license password for first-line brand computers. Close all your unused system services, especially those who can make others to remotely control your computer services, such as RemoteDesktop, RealVNC, and NetBIOS, etc..
TPM security chip in future books on the role of security will be more highlighted. .
Some people think that TPM can manage, save the key, the function is not too strong, in the future there will be no future? truth is in the negative. Currently, the majority of notebook manufacturers more built-in TPM before, after all, support for TPM system also does not occur, thus the majority of manufacturers are using third-party software to achieve the TPM as part of its function, provide, for example, file encryption and decryption and other services. After the official launch in Vista, TPM security chip will truly begin to realize its true heroes behind the scenes, a lot of system security functions are implemented through it. In the future, as the official promotion of Microsoft's NGSCB technology, TPM will be played in the true sense of the protection of God PC, so we really get rid of Trojan Horse computer virus harassment. Appears to be both hardware and software support for TPM security chip in the future promising, TPM security chip in future books on the role of security will be more highlighted. .
IDC recently published a very optimistic forecast: 2005 global security equipment TPM chip PC will reach 20 million units in 2007, the world will have more than 70% of PC installation security chip and trusted software. From 1999 TCG organization since its inception, members of the enterprise has more than 70 standard, TPM has also been upgraded to version 1. .2, but China's formal channel of the basic do not see major international companies, secure PC.. on the other hand, according to the report for the month of may, Garnter 2005 global PC sales will exceed 2. 0.2 billion units, compared to the proportion of PC security even if the optimistic view, but also 10%, from the "universal" there are considerable distances. However, if the IDC forecast to become a reality in 2007, around 70% of PC will be built-in security chip, then the next two years, the safety of PC market will likely blowout. .
Over the past few years, security PC failed to be market generally accepted one of the reasons is the high price, but in China, impeding the safe PC spread another important factor: policy restrictions and limited technical skills. Trusted computing itself has the particularity of safety, each country in Cryptography on the corresponding national protection measures. Our commercial cipher clearly indicate that the password must be from domestic manufacturers to complete the design, production and sales. But only Lenovo and Siu, TPM security chip technology has passed the State secret code regulatory Administration certification. In accordance with the regulations, if firms in China, launched PC Security PC, Bi Xu to use by the State Encryption Administration certified products, is also now have to use the Lenovo 就是 "Hang Chi" on TPM security chip, security chip, or trillion (SSX35), otherwise will be treated unlawful. .
IBM security chip recovery and settings.
Set the first step: Install the security chip client software IBM Client Security Software; complete description of the chip as "IBM Embedded Security Subsystem 2..0 ", it is IBM to confidential commercial confidential information in the design of high-strength hardware security chip, encryption strength is extremely high, can support" 1024-bit digital signature and key exchange up to 256-bit "can encrypt any files you specify, the files and memory user specified account password, save your security certificates and digital signatures, and some third-party device combination with fingerprint authentication, Iris certification and other high-tech means to replace the traditional password functionality, security chip can also be used as each client's unique identity to simplify network management (requires network support) . From a security point of view, the security chip technology used in notebook computers perfect performance, so far no one can break into the encrypted hard drive via the technology. Representative products include IBM ThinkPad T43, HP Compaq nc4200, etc.. .
The second step, after you set up the password after clicking next, authorize other user tips (figure), it is recommended that you do not authorize, by default only the current user as an authorized user, click Skip. After it is processing please wait for the prompt (such as map), this process take a few minutes, or longer. Are you just passwords and information is written to the security chip. After successful installation the following picture, the OK.
Restoration of IBM's security chip is embedded on the motherboard, but the password is stored in the hard disk. The first step, clear the security chip inside BOIS password settings: cold start system - hold down the shift + F1 - bois - security settings security - open the security chip ibm security chip - clear the security chip password clear ibm security chip- - "YES" to confirm - F10 to save your changes - "YES" exit the BIOS. .
The second step, the reset password security chip.
Security chip into the system installation folder C: \ Program Files \ IBM \ Security within the (if not found, set the "Show all files") - run acamucli administrator control and management tools - the password prompt has clear whether the delete - to select, so you can reset the security chip password! Note that clear security chip, the previously encrypted data can no longer be decrypted, even if the password is useless thought, and suggest that you forget the security chip in the password to reset a new password the first time using the above method clear the security chip in the content!。.
■ disk data encryption. .
Safe storage is the core technology of information security, if you do not have the storage security, information will be very easy to get out of control. Hard disk data encryption capabilities, through the hard disk on chip embedded professional security control, it can realize the negative track functionality and data encryption.
Hard disk data encryption. .
Negative track technology is the use of hard power initialization before the head of "zero" and addressing characteristics, through professional security chip, magnetic head addressing bias, the formation of internal disk substrate physical isolation (Division "sphere"), a hard-disk space can be divided into three bootable, you can only activate when using a key, the other boot sector will be placed into negative track to be protected cannot access.
Hard drive data encryption principles. .
Software encryption mode is not only a large quantity of existing operations, and it's easy to be tracked, decoding software experts. And hardware encryption chip encryption is used professionally, not only can decrease the load on the CPU, and physically protect the encryption algorithms that are not easily broken. Secure storage hard drives through the native security chip delivers full encryption, the data flow in through security chip in just a very small delay time to complete this entire process.
Hard drive data encryption interface. .
Lenovo T60 hardware maintenance manual is such a hard drive password.
There are two hard drive password: user's hard disk password - available to users; administrator hard disk password - provided to the system administrator to use, even if the user password is set, the administrator through the administrator password hard disk drive can read and write. .
Note: the hard drive password has two modes: only use the user's hard disk password or the user's hard disk password + administrator hard drive password. While the user's hard drive password + administrator hard drive password mode requires two password set by the system administrator at the same time. Then the administrator and user password to the user.
Note: If the user hard disk password is forgotten, check whether the administrator hard disk password is set. If the password is set and can be entered correctly, this will allow the hard disk read and write operations. If the administrator has not correctly entered the hard disk password, Lenovo does not provide any way to lift the hard disk password hard disk data recovery services or service, but the hard disk can be replaced by way of advances. .
Admin password: admin password (Supervisor Password) can be used to protect stored information in the BIOS. The password must be entered correctly in order to carry out when the BIOS settings.
Note: If the password is forgotten, Lenovo does not provide cleaning services, but motherboards can be replaced another form of payment. .
The hard drive password has always been a few concerns. Its role is to prevent laptop theft after hard drive inside the data theft. Adding a hard drive password, power-user password at the same time, the native is not Super password cannot read your hard drive; even if the hard drive to another demolition of machinery, hard drive password still exists, the hard drive is still unreadable.
Hard drive password looks cool, collected is a function of insurance, but do not forget, if your motherboard or any cause damage to your machine can not boot, then the things inside your hard drive is also finished with the motherboard. As long as they are not hard to realize that the board set the password, your information will not be able to read, so I do not recommend you use this method of hardware-level hard drive encryption, folder encryption software can be used. .
Many notebook hard drive password using the password entered by the user and the Board serial number for cryptographic operations after a hard drive password, this password approach results in a single notebook hard drive encryption in other notebook using the same password cannot be decrypted. Some compatible open all features, some of the control point. Such as DELL BIOS support only HIGH mode, but the encryption is also amended HIGH MASTER and the password; where USER is the user input + motherboard serial number, MASTER password only motherboard serial number, when you forget the password to be able to find DELL MASTER password of. IBM machine is automatically returned to dense, hard drives are designed super-encrypted password. . So the only solution to decrypt the motherboard BIOS, hard drive is not the solution. . PC3000 tool now too little recognition of the notebook hard drive, so there is no way to solution. .Although this functionality but does not recognize, rare use.
IBM laptop password Xiangjie. .
Applicable models:.
All ThinkPad 380; all ThinkPad 380D; all ThinkPad 380ED; all ThinkPad 380XD; all ThinkPad 380Z; all ThinkPad 560; all ThinkPad 560E; all ThinkPad 560X; all ThinkPad 560Z; all ThinkPad 600; all ThinkPad 600E; all ThinkPad 600X; all ThinkPad 760C; all ThinkPad 760CD; all ThinkPad 760ED; all ThinkPad 760EL; all ThinkPad 760ELD; all ThinkPad 760XD; all ThinkPad 760XL; all ThinkPad 765D; all ThinkPad 765L; all ThinkPad 770; all ThinkPad 770ED; all ThinkPad 770X; all ThinkPad 770Z。.
Document content:. .
IBM laptop 380/560/600/760/770 series can be set in the BIOS of the three types of passwords:.
Power On Password (power-up password, or boot password). .
Hard Disk Password (hard disk password).
Supervisor Password (super-user password, or supervisor password). .
Enter the BIOS, locate the options set on the password (Password).
1, according to F1 key to open the power supply, into the Easy-Setup program settings;. .
2 Easy-Setup screen, click on the Password.
Screen will appear:. .
Power-On Password 。.
HDD-1 Password. .
(HDD-2 Password) 。.
Supervisor Password. .
How to set up password?.
3, set the power-up password. .
Using the mouse (TrackPoint) click on power (Power-On Password);.
Enter prompt box appears, enter the password;. .
(Password can be from 1 through 7 on any combination of characters, including any uppercase or lowercase letter or number combinations. Uppercase and lowercase letters are considered the same).
(When you press the wrong key, you can use the rollback (Backspace) key to delete, then enter the correct characters.). .
Enter the password again to confirm it, press ENTER.
4, set the hard drive password. .
Use the mouse to click on the hard drive (TrackPoint) (HDD-1 Password);.
Enter prompt box appears, enter the password;. .
(Password can be from 1 through 7 on any combination of characters, including any uppercase or lowercase letter or number combinations. Uppercase and lowercase letters are considered the same).
(When you press the wrong key, did not shoot miscellaneous pseudo? Backspace) key to delete, and then enter the correct character. ). .
Enter the password again to confirm it, press ENTER.
5, set the super user password. .
Using the mouse (TrackPoint) click on the super user (Supervisor Password);.
Enter prompt box appears, enter the password;. .
(Password can be from 1 through 7 on any combination of characters, including any uppercase or lowercase letter or number combinations. Uppercase and lowercase letters are considered the same).
(When you press the wrong key, you can use the rollback (Backspace) key to delete, then enter the correct characters.). .
Enter the password again to confirm it, press ENTER.
How to change your password? . .
3. change the password.
When the power-boot password prompt appears, enter the correct power-password, then press the space bar (Spacebar),. .
Enter a new power on password, and then press the SPACEBAR (Spacebar), and then lose the first new power and confirm it, and then press the Enter key (Enter).
The new password takes effect the next time you start the computer. .
All of the steps may be summarized as follows:.
Current password (space) New Password (space) New Password (Enter). .
4. change the hard drive password.
When the hard disk boot password prompt appears, enter the correct hard drive password, then press the space bar (Spacebar),. .
Enter a new hard drive password, and then press the SPACEBAR (Spacebar), and then type a new hard disk and confirm it, and then press the Enter key (Enter).
The new password takes effect the next time you start the computer. .
All of the steps may be summarized as follows:.
Current password (space) New Password (space) New Password (Enter). .
5. change the root password.
Press F1 key to boot into the Easy-Setup program, the password prompt, enter your current root password, and press the Enter key;. .
In the picture, select password Easy-Setup (Password) icon.
Select Super User (Supervisor) icon, then enter your current super-user password, and press the space bar (Spacebar);. .
A window prompting you to enter a new root password, please enter the new root password, and then press the Enter key (Enter).
Enter super-user password again to confirm, then press Enter (Enter). .
How to remove password?.
3, remove power-up password. .
Power on when power on password prompt appears after you enter the correct power on password, and then press the SPACEBAR (Spacebar), and press return (Enter).
Power-time password is removed. .
All of the steps may be summarized as follows:.
Current password (space) (carriage return). .
4. remove the hard drive password.
Boot password prompt appears when the hard drive, please enter the correct hard drive password, then press the space bar (Spacebar), press the Enter key (Enter). .
When the hard drive password is deleted.
All the steps can be summarized as follows:. .
The current password (space) (carriage return).
5, delete the root password. .
When you press the F1 key to boot into Easy-Setup procedures password prompt, enter your root password, and press ENTER;.
In the Easy-Setup screen, select a password (Password) icon;. .
Select the superuser (Supervisor) icon, and then enter your root password, and press the SPACEBAR (Spacebar);.
In the blank box and press Enter (Enter);. .
In the confirmation screen, press ENTER again (Enter).
Note: some of the ThinkPad series is not super-user password. .
Laptop password cracking.
Notebook BIOS password not so easy to crack the desktop! Desktop computer BIOS password stored in the motherboard CMOS circuit, the circuit board CMOS battery after shutdown depends on the data to be maintained, so most of the desktop motherboard BIOS password as long as the CMOS battery will vanish pulled, but the top of the notebook, unplug the CMOS battery is no good. Decrypt windows laptop as a layer of paper is actually very easy, can be divided into the following three types:. .
I. use notebook design is left to clear the password; the back door.
Second, copy the code chip to replace or remove the password;. .
Third, the password is the password to read the chip, and then enter the correct password.
Now that these three methods separately about specific methods. .
I. use notebook design is left to the back door to clear the password. General notebook manufacturers to consider at design time to decrypt, left behind a "backdoor", but customers don't have to dismantle the manufacturers if you forget your password, you can clear the password, the following amendments to Toshiba, for example, introduce the decryption schemes.
1, Toshiba decryption methods:. .
①, for model older laptop, you can try the following methods, you may be able to unlock the notebook's power-on password: changing a machine's hardware configuration, such as the hard drive and then restart the likely will automatically enter the Setup program, and clear the power-on password. Second, try to find a chip on the motherboard, this chip, chip, commonly known as 818, are generally "MC146818" 24-pin, 12 feet short and then 24 feet a second, or find a marked "MC14069" chip, its 14 feet on the ground a short answer it, perhaps to clear the password purposes. .
②, for Toshiba laptop if you forget your password, you can use the password service to resolve (password service diskette in every time you set or modify the power on password is generated, maintained). The steps are as follows: insert the password in the drive service diskette. Press Enter, the following message: Set Pass Again? (Y/N) Y run TSETUP program, set a new password. Press N to restart the computer.
Note: The password service diskette must be inserted in the drive, otherwise the display will return to the Password =. If you have inserted a floppy disk drive, the message still appears, the password service diskette may be a problem. In addition, when using the password service diskette should be aware of the following two questions: If the BIOS boot priority is set to hard disk or optical drive, press the reset button and keep pressing the F key in order to ensure that the boot from the floppy drive. If the computer is in recovery mode, turn the power will not work when the password service diskette. At this time, also first press the reset button. .
③, for model older Toshiba laptop computer, the BIOS password protection of a "back door". You can try the following approaches may be able to bypass the BIOS password restrictions on Toshiba laptop, without having to enter any password authentication. Prepare a blank formatted floppy disk to another computer, a binary editing software (such as Norton DiskEdit or UtralEdit 32, etc.). Specific steps are as follows:.
Start the other computer, open the binary editor, insert the floppy disk drive, modify the first sector of floppy disks first 5 bytes, so that it becomes: 4B 45 59 00 00, attention to the boot sector is sector 0, Do not make mistakes. Then save the changes, you now have a key set up. This laptop will insert the floppy diskette, press reset button to restart, when you enter the password when prompted, press enter, the system prompts you to set the password again. Press "Y", Enter. Then you see the BIOS settings interface, you can re-set a new password the.。.
④, used to decrypt * Toshiba. Toshiba decryption * There are two main:. .
The first Toshiba decryption decrypt * production method was to find a parallel to one of the few pin shorted like rows: 1-5-2-10/11/3-4-17/12/16/6-7-8-13/14/9-15 \.
The second method :13-19 \ 14-22 \ 15-24 \ 16-21 \ 17-11 \ 20-10 \ 23-9 \. .
Use: when no post before Toshiba decrypt * plugged in and power outlet, then you can skip the power-on password, finished last in the BIOS change password on the line, such as the Toshiba 2410, 1410, etc. Some types of books directly engage the password. Use the parallel port will solve part of the Toshiba Notebook password problems.
Some books do not parallel Toshiba, Toshiba decryption * will become useless to turn parallel with the USB, and then decrypt * Toshiba, Toshiba, or access private dock, and then decrypt * Toshiba, but only part of the Toshiba solution books. .
⑤, Flash the BIOS can solve part Toshiba notebook.
⑥, Toshiba is now a lot of new books in memory directly next to short the two solder joints it can solve part of the Toshiba books. .
II. replacement or copy password to clear the password on the chip.
Notebook BIOS password can be divided into power-on password. .
(PowerOn Password), a superuser password.
(SuperVisorPassword) and hard drive password. .
(Hard Disk Password), and some models there are special settings for the password. Most of the power-on password COMS discharge can to clear, some of the old machine has a jumper to resolve through the discharge. As the only power-on password, put the COMS power on the line, such as Super password you need to read the password decryption chip through the software. But the premise is that you do not set the root password! otherwise even removed power-on password, the root password or appears, do not enter the correct password is unable to enter the BIOS.
When we set the BIOS settings and save the user password, the system user password input operation, and compression processing, the processed data stored in the eeprom password password memory chips specific location. Because the major notebook manufacturers have long made it clear that the situation will not forget the password for warranty repair if it insists on it, then prepare your money or replace a new motherboard. .
IBM embedded security subsystem integration in a security chip, and uses a password, encryption, and electronic authentication and other security measures, the moment of application software for monitoring and protection. Because the password is integrated on the chip, compared with software operations more secure. In addition, this kind of embedded security subsystem uses encrypted microprocessors, capable of delivering information more quickly, so it's more than ever, the hard drive storage key method is more secure and efficient. Key password is stored in a security chip, security chip through LPC bus system management bus (SMB) and the computer's main processor. According to the principle of the security chip, the password data can only output, not input, that is the key to encrypt and decrypt the password in the security chip to complete, but only the results output to the upper. Integrated on the motherboard this way, they can avoid lost or forgotten simply repeating what the trouble to bring (or cryptographic hardware token ring CF card will have a similar problem.) Can be described as a small investment to solve a big problem. Of course, as a complete solution, is also inseparable from the client security management software, it is used in conjunction with security chips, can achieve file encryption, user authentication, user rights management goals.Here it should be noted that security chip protection also need to enter the password, the password must not be forgotten, otherwise it will wait for the motherboard!.
With IBM security chip, for example, the chip only recognized their own piece of board binding factory, once the opening of this chip, forget the password, or unplug it, boot will ask you to enter a password, if you do not know the password, the protection function will force, can only block with the replacement motherboard with security chip, and use the security chip to save encrypted data, security chip and board can only bind the factory with a special way, once they no longer match each other after can not match each other's security chip and motherboard.IBM introduces built-in security chip products when external statement, once you have enabled security chip on the hard disk is encrypted, it is necessary to bear in mind that your use of the password, otherwise once lost, even if sent to IBM Corporation also unable to decrypt it, save the data.
Notebook now generally called the password stored in a serial EEPROM chip erasable read-only storage, you just have not the same model from one of the books on the demolition of a password to copy an EEPROM EEPROM can solve the problem. Note: Some of EEPROM which is not only a password, such as IBM, there are also inside the machine serial number, if replicated, then the machine will be connected with the serial number copied, so the machine serial number and decryption have changed.IBM laptop, for example, a common memory chips are: 24C01A, 24C02, 24C03, 24RF08BT, 24RF08CM 24RF08CT, etc..
24rf08 programmer connection, and then use the IBM cracked software, read the password chip password. .
Prepare another have COM1 port of the computer. The programmer through serial line connected to the COM1 port, and then on the line before (welding fine wire to the programmer), open a password-notebook power, press F1 to enter the BIOS, the prompt for password when you connect the programmer enameled wire, and then connect the USB power cable. Run the software read. .exe (running under MS-DOS software).
read. . Exe. .
Such as: read. . Exe t42. . Bin. .
Or (assuming the software read. .exe c: below, read the data in c below).
Read the data stored in the software under the same file. Finally, the order of removal programmer USB power cord, remove the data cable, remove the programmer to close the encrypted laptop. .
If the read-write 24Cxx or 93Cxx chip with ponyprog software.
Cancel the password just read to find out. . Bin file, and then special software IBMpass view the password. Or to read the data directly into trust IBM. . Exe icon (the icon that the software is not running), the software will display the password J. .
Then enter the password to enter the BIOS post cancel password settings. The hard drive password stored on the hard disk, the password is stored in the chip, it shall, through the dedicated hard disk to the decryption program to solve the hard drive password. If you have removed the hard drive to hard drive password, and then decrypt your hard disk with professional HD decryption software unlock.
Note Remember! When the chip is not removed with the programmer connected to the chip reading data, must be turned on again and again line. After reading the data must be shut down after suture removal. .
IBM ThinkPad T43, R52, T60, Z60, IBM ThinkPads X60 series decryption T43 and R52 used PC8394T-VJG Super i/o chip through the TPM feature for administrator password (SVP) and different OEM information, serial number, UUID, etc..
To get SVP, must first be read by software ribmtpm chip data, if the read chip data, and then the password viewer software to view the password. If the passphrase to activate in the BIOS, the password through the TCPA RSA-SHA1 encryption algorithm, can not view the password, can only be re-written to the chip without a password to decrypt the data. Through software wibmtpm with PC8394T programmer to write the code chip. .
Programmer to read and write password chip is simple and convenient, does not require removal of chips, some as long as the connection cable can be easily read and write.
Other brands of notebook computers, and other commonly used 93C46 eeprom chip. eeprom chip is nonvolatile serial chip, chip, the data does not need to be able to keep the battery with the outside world, written in the chip data, at room temperature can be maintained for 10 years. Figure is IBM TP600 laptop motherboard eeprom code memory chips, which is located in the motherboard PCI bus control chip next to the chip type for the AT24C01A. .
24C01A 24RF08 (14 feet) 24RF08 (8 feet) 93C46.
Note that some laptop motherboard, EEPROM chip model C46XX, in fact 93C46, sometimes also labeled as C46C1 chip or C46xx or M811P or M811x. L56R the 93LC56. .
The data in the EEPROM chips, it is necessary to read out with the programmer, to use software for solving! password in order to further enhance system reliability, and now IBM and some models of laptops, dual storage chip forms, such as IBM T40, R50, R50E, etc. (part of the motherboard design has a dual chip, but actually only welding has a chip).
Notebook decryption tool: You can password-chip solution for all notebooks. Want to lift such a failure is not difficult, as long as you have a decryption device. . Control chip chart, find the location of the password chips (each chip location are not the same machine code) to remove the chip, into the programmer, read the original file, and then compiled by an anti-decryption software to obtain the correct user password. Specific methods are as follows:. .
1. open the one does not have a password, remove the same model notebook motherboard.
2, there used to remove hot air solder station password chip EEPROM. .
3, to read the EEPROM programmer.
4, the EEPROM chip board back. .
5. open the notebook has a password, remove the motherboard.
6, there used to remove hot air solder station password chip EEPROM. .
7, with programmer will just read the EEPROM content written to this chip.
8, the EEPROM chip board back. .
9, installed, reboot the machine and COMS restore to factory settings.
Here we IBM TP600, for example, tell us about the decryption - that is cracking the password method. First, open the laptop, the process we are here omitted, as long as the intention is very easy to disassemble carefully. .
Add diagram found EEPROM chips, use 24C01A hot air gun removed ROM chip, which is a series of 8 feet of 24 1KB EEROM chip.
With the programmer to read out the password file, the file name saved as tp600-300m. . Bin. .
Read a 128 byte cmos backup (tp600-300m。.bin)。.
Keyboard: US. .
Acer/IBM [ $O QQQ]。.
AMI BIOS [9; c]. .
AMI WinBIOS (12/15/93) [9 f ]。.
AMI WinBIOS 2. .5 [F] [] []. .
AMI ? [ ][- C ][ ][ C C ]。.
Award 4. .5 X / 6. .0 [3,120,230] [2,000,230] [13,331,333]. .
Award 4。.5x/6。.0 [3030030][3000333][3211102]。.
Award Medallion 6. .0 [3,011,001] [2,001,002] [13,331,333] [12,211,220]. .
Award 6。.0 []。.
Compaq (1992) [197932]. .
Compaq DeskPro [?V19?932][? D"?BDD]。.
Compaq [] [197932]. .
DTK [ ][1`P2oa]。.
Phoenix A08, 1993 [] [7932]. .
IBM (PS/2, Activa 。.) [] [197932].
IBM Thinkpad boot pwd [197932]. .
Press a key to continue。.
Corresponding IBM Thinkpad boot pwd is the password box in the [197,932]. Different laptops, the password stored position and chip models differ materially. . Therefore, to be mentioned. .
1) have a lot of people tend to overlook is that the power-on password and a supervisor password is not set to the same, otherwise you canceled the superuser password, power-on password will jump out and you enter the old password is not passed! Compaq users are paying special attention to this point. 2) some users in the Enter password and confirm password found himself seems wrong, no matter what inputs are unable to open it is correctly set the password. 80% of these cases is because when the input and confirm the password to open the numeric keypad or the upper sign, notebook computers because there is no separate numeric keypad, so the design of a hot key (usually FN + NumLock) to be part of the letter keys converted to use the numeric keypad, enter the password when you do not intend to open a small keyboard, you actually enter the letters with numbers, so you reboot after the automatic cancellation of the numeric keypad, you still thinks that the correct password in accordance with input, of course, is not open to the.4) may be a lot of the supervisor password is not set, set the supervisor password and want to clear the password, press ENTER to enter the Setup interface, enter the current password, press ENTER, type the new password in the line of direct press ENTER to confirm that it is a direct hit enter, the supervisor password is disable. But here to remind us under, set the supervisor password is indeed to be very careful when keys must be careful not to hit other health, other health once met, do not know what the password is, this is over, I met once The lesson is painful ah! 5) There are some models such as the IBM super user can set the admin password 7! Hard drive and start power-up password can set password length, the longest 12. The establishment of more useless, but also get you in trouble! Play what they should not play your password. .
Common notebook EEPROM chip type: password.
Acer 630: eeprom 93c56. .
Compaq M700: eeprom 24C02。.
Dell Inspirion 7500: eeprom 24c164. .
Dell Inspirion 8100: eeprom 24c02。.
Dell Latitude C600: eeprom 24c02. .
Dell Latitude CPI: eeprom 24c02。.
IBM Thinkpad X20: eeprom 24RFC08CN. .
IBM TP 380Z: eeprom 24c01。.
IBM TP 390: eeprom 24c03. .
IBM TP 560X: eeprom 24c01。.
IBM TP 570: eeprom. .
IBM TP 755CX,760C,765D: eeprom 93c46。.
IBM TP 770: eeprom 24c01. .
IBM TP 600E, T21, T23: 14 PIN 24RF08。.
IBM TP T20: 24RF08. .
HP Omnibook 2100,4150,7150: eeprom AT24c164。.
HP Omnibook 6000: eeprom 24c08. .
HP Omnibook 6100: eeprom 24c08。.
HP Omnibook XE3: eeprom 24c16. .
HP Omnibook 770x: eeprom 24c01。.
Sony pcg-fx950: eeprom 93c46. .
Toshiba 74600C: eeprom 93c56 。.
Third, the code chip password read out, and then enter the correct password. The second method is good, but most people can not have various models of laptop, or the preservation of various types of notebook chip, code content, the best solution is the content directly from the chip to read the password password. .
Now anyone can read your password through the software to the chip. The steps are as follows:.
1, open the notebook, remove the motherboard. .
2, with hot-air welding machine for under a password-chip EEPROM.
3, with the programmer to read out the contents of EEPROM. .
4, using a dedicated password decryption software to read out.
5, the EEPROM chip board back. .
6, installed machine, enter the password.
Tianyi F41 Series notebook BIOS password removal method boot error code of IBM IBM ThinkPadT43, R52, T60, Z60. .
X60, T61 Series notebook password decryption.
