Encryption system for digital program hard disk
A disk encryption and program technology, applied in the electronic field, can solve the problems of hidden dangers of hard disk data security, unsatisfactory security, etc., and achieve good practical value and high security effects
Active Publication Date: 2014-04-02
SHANDONG HUIYING SCI & TECH MEDIA
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Problems solved by technology
The hard disk encryption carried out in the form of software program is easy to be read and cracked by modifying the program, so it is considered that hardware encryption is more reliable at present. The security of traditional hardware encryption methods in the prior art is still not ideal, and the security of hard disk data still exists. great danger
Method used
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Embodiment Construction
[0021] Examples such as figure 1 As shown, the digital program disk encryption system is characterized in that: the digital program disk encryption system includes a digital program hard disk 1 with a SATA interface, an encryption circuit 2, an interface circuit 3, and a non-detachable sealed hard disk box 4, which is sealed with a high-strength The glue solidifies and encapsulates the digital program hard disk 1 and the encryption circuit 2 in the sealed hard disk box 4, making it an integrated structure, only the interface CN1 on the encryption circuit 2 leaks, and the user cannot take out the hard disk at will. If you take it out forcibly, the hard disk will Damaged, resulting in irreparable damage, thereby protecting the data in the digital program disk; the digital program hard disk 1 is connected to the encryption circuit 2 through the SATA interface; the encryption circuit 2 and the interface circuit 3 are connected through the SATA interface cable.
[0022] Such as f...
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The invention discloses an encryption system for a digital program hard disk. The system comprises the digital program hard disk with a serial advanced technology attachment (SATA) interface, an encryption circuit and a non-detachable sealed hard disk cartridge, wherein the digital program hard disk and the encryption circuit are solidified and packaged in the sealed hard disk cartridge; the 1st to 7th pins, 13th pin and 17th to 22nd pins of an interface CN1 of the encryption circuit are correspondingly connected with the 1st to 7th pins, 13th pin and 17th to 22nd pins of an interface CN2, and the 11th, 12th and 13th pins of the interface CN2 are grounded; an in-circuit serial programming data line (ICSPDAT) pin and an in-circuit serial programming clock line (ICSPCLK) pin on the interface CN1 are correspondingly connected with the 1st and 3rd pins of an encryption chip U1; the 1st pin of the encryption chip U1 is connected with a 3.3V power supply through a resistor R3; the 3rd pin of the encryption pin is connected with the 3.3V power supply through a resistor R4; the 2nd pin of the encryption chip U1 is grounded; the 5th pin of the encryption chip is connected with the 3.3V power supply; the 6th pin of the encryption chip U1 is connected with the gate G of a field effect transistor Q1 and one end of a resistor R2; the source S of the field effect transistor Q1 is connected with the other end of the resistor R2 and a +5V power supply; and the drain D of the field effect transistor Q1 is connected with the end V5 of the interface CN2. By the system, data in the digital program hard disk is effectively protected; and the system has high safety.
Description
technical field [0001] The invention relates to a digital program disk encryption system, which belongs to the field of electronic technology. Background technique [0002] There are many mobile projection devices for digital movies on the market. The hard disk in the projection device contains software packages and program data. If the hard disk data is not encrypted, it will be stolen, read, tampered and deleted by illegal users without effective protection. As a result, huge irreparable losses are caused to manufacturers; data encryption is an important means to protect digital asset information security; therefore, more and more manufacturers are actively seeking the most effective method of hard disk data encryption. [0003] At present, the data protection technology used in hard disks is generally divided into two types: software and hardware. The former uses software to encrypt, and the latter implements a dedicated encryption chip in the hard disk to encrypt from th...
Claims
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IPC IPC(8): G06F12/14G11B20/00
Inventor 李林牟敦箫王国强
Owner SHANDONG HUIYING SCI & TECH MEDIA