Solid state disk controller safe loading method and device and storage medium

A solid-state hard drive and loading device technology, which is applied in computer security devices, instruments, computing, etc., can solve problems such as illegal personnel, low firmware security, and key loss, and achieve the effect of increasing difficulty and ensuring security

Pending Publication Date: 2019-07-12
RAMAXEL TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the key is stored in the header, criminals can dismantle the Flash chip on the solid-state hard drive by violence and read the firmware information in the Flash. Since the header is plain text in this method, the key can be parsed from the header , and then use th

Method used

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  • Solid state disk controller safe loading method and device and storage medium
  • Solid state disk controller safe loading method and device and storage medium
  • Solid state disk controller safe loading method and device and storage medium

Examples

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Example Embodiment

[0106] reference Figure 5 This is a specific implementation of a method for secure loading of a solid-state hard disk controller of the present invention, which is specifically as follows:

[0107] The firmware encryption process is explained as follows:

[0108] 1. The packaging tool randomly generates a 128bit random number as the random key KEY4.

[0109] 2. Join the 128-bit fixed key KEY3 and the random key KEY4 generated in process 1 to form a 256-bit complete key KEY5.

[0110] 3. Use the fixed key KEY3 to encrypt the header with AES128 to generate the ciphertext header.

[0111] 4. Use the complete key KEY5 in process 2 to encrypt the Bootloader with AES256 to generate the cipher text Bootloader.

[0112] 5. Join the ciphertext header in process 3 and the ciphertext Bootloader in process 4 to form a complete Bootloader firmware.

[0113] 6. Burn the Bootloader firmware into Flash.

[0114] The firmware decryption process is explained as follows:

[0115] 1. The chip is powered on and t

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Abstract

The invention discloses a solid state disk controller safe loading method and device and a storage medium. The method comprises the following steps: generating a random number to serve as a random key; obtaining an existing fixed key which is used for encrypting/decrypting/decrypting the header and the random key; splicing the fixed secret key and the random secret key to form a complete secret key used for encrypting/decrypting the BootLoader; and separately storing the fixed key and the random key in different positions in the solid state disk. According to the scheme, the 256bit complete secret key used for encrypting and decrypting the BootLoader firmware is divided into the random secret key and the fixed secret key, the fixed secret key and the random secret key are separately storedin different positions in the solid state disk, the difficulty of cracking and obtaining the complete secret key is improved, and the security of the BootLoader firmware is ensured.

Description

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Claims

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Application Information

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Owner RAMAXEL TECH SHENZHEN
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