Method for managing BIOS (basic input/output system) administrator passwords in system
A management method and technology for administrators, applied in the field of computer information security, can solve problems such as inconvenient and flexible operation, and achieve the effect of convenient and flexible management and security protection
Active Publication Date: 2015-04-29
深圳华北工控股份有限公司
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Problems solved by technology
[0006] Aiming at the above-mentioned technical problems such as the inconvenient and flexible operation of the existing BIOS administrator password which is limited to management under the BIOS interface, the present invention provides a method for managing the BIOS administrator password under the system, which can facilitate users to manage the BIOS under the system. Administrator password, so as to prevent the user from re-burning the BIOS file due to forgetting the BIOS administrator password, making the management of the BIOS administrator password more flexible and convenient, and the password security is higher
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[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0038] Such as figure 1 As shown, a system management method of a BIOS administrator password comprises the following steps:
[0039] Step S10, encrypting the password string input by the user under the system to generate an encrypted file;
[0040] Step S20, decrypting the encrypted file into a plaintext BIOS administrator password under the system, and storing the BIOS administrator password and the password flag in the CMOS memory;
[0041] Step S30, in the system power-on phase, according to the password flag in the CMOS memory, the BIOS administrator password stored in the CMOS memory is sto...
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The invention discloses a method for managing BIOS (basic input / output system) administrator passwords in a system. The method comprises the following steps of (S10) encrypting a password string inputted by a user in the system to generate an encryption file; (S20) decrypting the encryption file into plaintext BIOS administrator passwords in the system and storing the BIOS administrator passwords and password marker bits in a CMOS (complementary metal-oxide-semiconductor) memory; and (S30) storing the BIOS administrator passwords stored in the CMOS memory in a password space segment of a BIOS NVRAM (non-volatile random access memory) according to the password marker bits in the CMOS memory in a starting stage of the system, or clearing away the BIOS administrator passwords in the password space segment of the BIOS NVRAM. By the method, the BIOS administrator passwords are managed flexibly and conveniently, and the safety of the passwords is high.
Description
technical field [0001] The invention belongs to the technical field of computer information security, and mainly refers to a method for managing BIOS administrator passwords under the system. Background technique [0002] With the development of the computer industry, system security is becoming more and more important. People also put forward new requirements for BIOS administrator password settings: [0003] First of all, there are many peripheral devices connected to the general industrial computer. Restarting the system to enter the BIOS interface and setting the BIOS administrator password means that the current peripheral devices and the normal work of the industrial computer must be interrupted. This situation is what the user does not want to see. . [0004] Secondly, in the past Legacy BIOS era, the BIOS administrator password is generally stored in the CMOS memory, and the user can clear the administrator password through clear CMOS. In the current UEFI BIOS era,...
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IPC IPC(8): G06F21/71
CPCG06F21/72G06F2221/2107G06F2221/2141
Inventor 王井红谭刚刘小安王青国
Owner 深圳华北工控股份有限公司