Paper product protection tool with authorized unlocking

Abstract

The invention provides a paper product protection tool with an authorized unlocking function. The paper product protection tool comprises a protection shell, a lock set and an unlocking module. By means of the near field communication technology, the lock set is unlocked through the unlocking module in the mode of authenticating the unlocking code, and then the protected paper product in the protection shell can be obtained. In the unlocking process, the unlocking code is authorized to be used by an unlocking person, so that the person who has browsed the protected paper product once can be controlled and tracked.

Description

Technical Field

[0001] The invention relates to a paper product protection tool, in particular to a paper product protection tool with authorized unlocking. Background Art

[0002] In the current era of information explosion, in order to make information exchange between people more convenient and reduce the waste of resources, many circulating data types have become paperless. However, even with the decreasing number of paper documents, some special confidential documents are still mainly carried on paper due to their confidentiality characteristics. These paper confidential documents are usually sealed in special folders and presented to specific personnel who are authorized to unseal and browse the contents. In addition to unauthorized personnel being prohibited from opening the folders to steal confidential information, people who have read the contents must also note the time and opportunity of their unblocking to ensure that confidential information is not leaked. For the relevant requirements for the protection of these paper documents, please refer to the ISO 27001 / ISO 27002 specifications.

[0003] The ISO 27001 / ISO 27002 specification mentions that organizations need to use security measures to protect documents. On the other hand, the specification also stipulates that information labels should be placed on physical documents with relevant information such as suppliers, expiration dates, contract dates, and purchase items, while also complying with information hiding so that irrelevant personnel cannot distinguish. Therefore, labeling folders restricted by the specification has become a difficult task.

[0004] If the number of files and folders regulated by ISO 27001 / ISO 27002 is not high in the company, the operating cost may not be affected much. However, for some service-oriented enterprises, such as banks, there are quite a lot of highly confidential and authorized files. For example, if the company has 500 folders in circulation to protect confidential files, if a physical mechanical lock plus a key combination is used, the distribution and storage of the keys must be performed by a dedicated person; if a combination lock or other electronic encryption lock is used, the management personnel cannot remember it at all, which will cause other information security incidents such as password leakage and password storage.

[0005] In addition to the protection of circulating paper documents, the following high-value paper products also need to be properly protected. For example, notebooks are a link that easily leads to information leakage. If R&D personnel record new products and new innovative concepts in their notebooks, or business managers put sales customer data, relevant quotations and performance summary tables in notebooks, it is easy for others to read them and leak information. Another high-value paper product is banknotes. If people carry large amounts of banknotes out without better protection, once they are exposed, they are in danger of being robbed or even physically injured.

[0006] In order to protect the various types of high-priced paper products mentioned above, many corresponding products have been produced in the market, such as official seal boxes with fingerprint locks, notebooks protected by password locks, cash bags with mechanical locks, etc. However, these products have various problems, such as fingerprint locks need to be charged, fingerprint entry is cumbersome; it is difficult to manage a large number of passwords, and manage a large number of keys; in addition, it is impossible to provide additional functions such as labeling, authorization management, reading records, and anti-cracking high-level encryption in addition to unlocking, which makes the product unable to fully comply with ISO 27001 / ISO 27002 specifications. In order to simultaneously meet the regulatory requirements and solve the practical difficulties faced by the market, the present invention is proposed. Summary of the invention

[0007] The object of the present invention is to provide a paper product protection tool with authorized unlocking.

[0008] In order to meet the above needs, the present invention provides a paper product protection tool with authorized unlocking. The paper product protection tool with authorized unlocking includes: a protective shell, which can perform an opening action in one direction to temporarily place or permanently fix a paper product in the protective shell; a lock set, including a first lock and a second lock that can be locked with the first lock, the first lock and the second lock are respectively directly or indirectly installed at different positions on the protective shell, when the first lock is locked with the second lock, the opening action cannot be performed; and an unlocking module, coupled with the first lock, including: a near field communication antenna unit , receiving an unlocking signal from a near field communication unlocker and converting the electromagnetic energy from the near field communication unlocker into electrical energy; an unlocking unit, sending an unlocking signal to the first lock or performing an unlocking action on the first lock to prompt the first lock to release the locked second lock; and a processing unit, connected to the near field communication antenna unit electrical signal and coupled to the unlocking unit, performing an authentication operation on an unlocking code in the unlocking signal, and when the authentication operation is successful, notifying the unlocking unit to send the unlocking signal or perform the unlocking action.

[0009] Preferably, the protective housing forms a file folder, a notebook spine, a cash pocket, a diary spine or a document box.

[0010] In one embodiment, the first lock or the second lock is further mounted on an extension object connected to the protective shell.

[0011] According to the present invention, the protective shell can be formed by a hard square thin plate that is bent once or multiple times and partially combined, by two hard square thin plates that are rotatably connected to each other on corresponding sides, by a connecting plate that is movably connected between corresponding sides of two hard square thin plates, by connecting at least two corresponding sides of two hard square thin plates, by one side of a hard square thin plate that is movably connected to one side of a hard square open empty shell, or by connecting one side of two hard square open empty shells.

[0012] Preferably, the material of the hard square open hollow shell is opaque plastic, metal, cardboard, wood or bamboo.

[0013] Preferably, the material of the hard square thin plate is opaque plastic, metal, cardboard, wood or bamboo.

[0014] According to the present invention, the authentication operation may include the following steps: a) retrieving a verification code pre-stored in the processing unit; and b) comparing the unlock code with the verification code, if the two are the same, the authentication is successful.

[0015] According to the present invention, the authentication operation may also include the following steps: c) if the verification code is a ciphertext obtained by encrypting a first plaintext using a symmetric key, retrieving a second plaintext and the symmetric key pre-stored in the processing unit; and d) decrypting the ciphertext using the symmetric key. If the decrypted result is that the second plaintext is the same as the first plaintext, the authentication is successful.

[0016] According to the present invention, the authentication operation may also include the following steps: e) the processing unit generates a first random number, and transmits the first random number and a near-field communication chip serial number of the processing unit to the near-field communication unlocker; f) the near-field communication unlocker transmits the first random number and the near-field communication chip serial number to a public key infrastructure platform, and the public key infrastructure platform uses a public key in a pair of keys generated by the near-field communication chip serial number to digitally sign the first random number to obtain the unlocking code; g) the processing unit uses a private key in the stored pair of keys to digitally verify the signature of the unlocking code to obtain a second random number; h) compares the second random number with the first random number, and if the two are the same, the authentication is successful.

[0017] The outer surface of the protective shell of the paper product protection tool with authorized unlocking can be further printed with an indicator, which points to the location of the near field communication antenna unit.

[0018] Preferably, the unlocking module may further include an LED lamp bead, which is electrically connected to the near field communication antenna unit. When the near field communication antenna unit is in operation, the LED lamp bead emits light.

[0019] The present invention utilizes near field communication technology to unlock the lock assembly by authenticating the unlock code through the unlocking module, thereby obtaining the protected paper product in the protective housing. During the unlocking process, the unlock code is used by the authorized unlocker, so that the person who has browsed the protected paper product can be controlled and tracked.

[0020] The above description extracts and compiles certain features of the present invention. Other features will be provided in subsequent paragraphs. Its purpose is to cover various modifications and similar arrangements within the spirit and scope of the attached claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A paper product protection tool with authorized unlocking according to a first embodiment of the present invention is illustrated.

[0022] Figure 2 The figure is a block diagram of the components of an unlocking module.

[0023] Figure 3 A paper product protection tool with authorized unlocking according to a second embodiment of the present invention is illustrated.

[0024] Figure 4 A paper product protection tool with authorized unlocking according to a third embodiment of the present invention is shown.

[0025] Figure 5 A paper product protection tool with authorized unlocking according to a fourth embodiment of the present invention is illustrated.

[0026] Figure 6 A paper product protection tool with authorized unlocking according to a fifth embodiment of the present invention is shown.

[0027] Figure 7 A paper product protection tool with authorized unlocking according to a sixth embodiment of the present invention is illustrated.

[0028] Explanation of reference numerals: 1-paper product protection tool with authorized unlocking; 2-paper product protection tool with authorized unlocking; 3-paper product protection tool with authorized unlocking; 4-paper product protection tool with authorized unlocking; 5-paper product protection tool with authorized unlocking; 6-paper product protection tool with authorized unlocking; 7-near field communication unlocker; 10-smartphone; 20-smart bracelet; 30-round plastic shell; 40-stylus pen; 50-smart watch; 100-protective shell; 101-fixing rope; 102-fixing ribbon; 103-hard square thin plate; 104-connecting plate; 1 05-seal; 106-hard square thin plate; 107-hard square open empty shell; 108-hard square open empty shell; 111-edge; 112-cover; 113-indicator; 200-lock set; 210-first lock; 211-laser engraving area; 220-second lock; 300-unlocking module; 310-near field communication antenna unit; 320-unlocking unit; 330-processing unit; 331-near field communication chip; 332-random access memory; 333-read-only memory; 334-input and output interface; 335-LED lamp beads; D-loose-leaf file; S-confidential file. DETAILED DESCRIPTION

[0029] The present invention will be described more specifically with reference to the following embodiments.

[0030] See also Figure 1 , which illustrates a paper product protection tool 1 with authorized unlocking according to the first embodiment of the present invention. The paper product in the present invention refers to an item made of paper as the whole or main material, especially an item with documented information and asset characteristics, such as but not limited to paper important documents, notebooks (loose-leaf or book-like) for recording confidential data, and even cash. In order to effectively protect these paper products themselves or the data recorded on these paper products, the paper product protection tool 1 with authorized unlocking of the present invention is used. The paper product protection tool 1 with authorized unlocking includes a protective shell 100, a lock set 200 and an unlocking module 300. These technical elements are described in detail below with reference to relevant drawings.

[0031] The protective housing 100 is a main body of the paper product protection tool 1 with authorized unlocking for placing the aforementioned paper products. In a certain state, the paper products in the protective housing 100 cannot be taken out. Figure 1 In the embodiment, the protective shell 100 forms a folder, and a smaller one can also become a cash bag. The protective shell 100 is formed by a hard square thin plate, which is bent once or multiple times and partially combined. According to the present invention, the paper product in the protective shell 100 may be confidential (in this embodiment, it is a confidential document S, which cannot be seen because it is placed in the protective shell 100, Figure 1 The external shape of the confidential document S in the figure is shown with a dotted line), and cannot be known to unauthorized others. The material used for the protective shell 100 must have a certain hardness to resist damage, and it must also be opaque. In this embodiment, the protective shell 100 uses an opaque plastic sheet, such as polyvinyl chloride (PVC), as the material of the hard square thin plate. The opaque plastic sheet is bent twice, and the edges 111 of the two parts are combined after heat pressing, thereby sealing the three directions of the protective shell 100, so that the confidential document S cannot be taken out from the three directions. For the convenience of explanation, the part of the protective shell 100 where the confidential document S can be placed is called the main body. The third part of the opaque plastic sheet forms a cover sheet 112, and when the cover sheet 112 is folded and contacts the main body, the confidential document S is completely sealed. By Figure 1 It can be seen that the protective housing 100 can be opened in one direction to temporarily place the confidential document S in the protective housing 100. Otherwise, if the opening action is not performed, the confidential document S cannot be placed in the protective housing 100, or the confidential document S placed in the protective housing 100 cannot be taken out. Figure 1 The opening action is to rotate the cover sheet 112 away from the main body of the protective housing 100 in the direction indicated by the arrow. In practice, the material of the hard square sheet can be metal or cardboard in addition to opaque plastic.

[0032] The lock set 200 is a technical element for executing the action of restricting the opening of the protective shell 100. A general lock is composed of at least two locks that can be locked with each other and are respectively installed on the objects to be locked. For different locks, the locking methods between the two locks are different. Of course, in order to achieve a safer locking, not easily damaged by external forces or technical unlocking, each of the aforementioned locks has its own complex design, and is even composed of many parts. The lock set 200 of the present invention, like these locks, includes a first lock 210 and a second lock 220 that can be locked with the first lock 210. In other words, the second lock 220 of the lock finger of the present invention has a corresponding structure that matches the structural design of the first lock 210. The user can unlock the lock set 200 by operating the first lock 210. When locking is required, the second lock 220 is directly combined with the corresponding part of the first lock 210, or the state of the first lock 210 is changed to lock the second lock 220. The lock assembly 200 can be a mechanical lock without power, or an electronic (magnetic) lock that requires power or has its own power. The present invention does not limit the type and form of the lock assembly 200. The first lock 210 and the second lock 220 of the present invention are respectively directly or indirectly installed at different positions on the protective housing 100. Figure 1In the embodiment, the first lock 210 is installed on the body, and the second lock 220 is installed on the cover 112. When the cover 112 is close to the body, the second lock 220 can be locked to the first lock 210; when the first lock 210 is operated to release the second lock 220, the cover 112 can freely leave the body, allowing the user to put the confidential document S into the body or take it out of the body. In other words, when the first lock 210 and the second lock 220 are locked, the opening action cannot be performed.

[0033] The unlocking module 300 is a technical element that drives the first lock 210 to release the locked second lock 220 when a specific condition is met. The unlocking module 300 is coupled to the first lock 210. Figure 1 The unlocking module 300 in the figure cannot be directly seen from the outside under the first lock 210, so its position is shown by a dotted line. The unlocking module 300 is an electronic component in the form of a flexible circuit board with multiple active and passive components soldered on it. For a better understanding of the structure of the unlocking module 300, please refer to Figure 2 , which is a block diagram of the components of the unlocking module 300. The unlocking module 300 includes a near field communication antenna unit 310, an unlocking unit 320 and a processing unit 330. The near field communication antenna unit 310 is a tool for receiving near field communication signals and obtaining electrical energy therefrom. More precisely, the near field communication antenna unit 310 can receive an unlocking signal from a near field communication unlocker 7, and convert the electromagnetic energy emitted by the near field communication unlocker 7 into electrical energy. The near field communication unlocker 7 is a hardware created based on the near field communication reader (NFC Reader) architecture of the near field communication specification, and has its own power supply hardware, such as a mercury battery, or is connected to an external power supply. This embodiment uses the NFC 13.56MHz frequency band to transmit the unlocking signal, and provides the unlocking module 300 with the power required for unlocking by coil induction power supply. The unlocking module 300 itself does not require any self-powered design. The NFC unlocker 7 can be used alone or embedded in other objects to provide the NFC unlocking function in conjunction with the operation of the object. In this embodiment, the NFC unlocker 7 is installed in a smart phone 10 and operates with power provided by the smart phone 10. The unlocking signal is an electromagnetic wave signal that carries an unlocking code. Figure 1 As shown, the NFC unlocker 7 is signal-connected to the unlocking module 300 (indicated by a dotted double arrow, and the signal connection between the two in the following embodiments is indicated in the same manner), and the electromagnetic energy is transmitted from the NFC unlocker 7 to the unlocking module 300 and converted into electrical energy by the NFC antenna unit 310.

[0034] The unlocking unit 320 is a technical element that couples the unlocking module 300 with the first lock 210 and actually drives the first lock 210 to release the locked second lock 220. The unlocking unit 320 varies according to the type of the lock set 200. If the lock set 200 is a mechanical lock, the first lock 210 needs to be externally pressed or rotated to release the complex mechanical lock system. The unlocking unit 320 can be a module (not shown) composed of a stepping motor, a gear set and a control circuit. When the unlocking unit 320 receives a request from the processing unit 330 to release the lock of the first lock 210 to the second lock 220, the control circuit controls the stepping motor to drive the gear set, and the terminal of the gear set can perform an unlocking action on the first lock 210, such as turning the unlocking knob of the first lock 210 or pressing the unlocking rod (not shown) of the first lock 210, so as to prompt the first lock 210 to release the locked second lock 220. If the lock set 200 is an electronic lock, the first lock 210 needs to be controlled by an external signal to release the internal mechanism, and the unlocking unit 320 can be a control circuit that sends an unlocking signal to the first lock 21 to perform the aforementioned unlocking action on the first lock. The unlocking signal can be just a change in potential, or a series of electrical signals with specific content.

[0035] The processing unit 330 is electrically connected to the NFC antenna unit 310 to receive power and unlocking signals from the NFC antenna unit 310, and is also coupled to the unlocking unit 320. The function of the processing unit 330 is to perform an authentication operation on an unlocking code in the unlocking signal, and when the authentication operation is successful, notify the unlocking unit 320 to send the aforementioned unlocking signal or perform the unlocking action. In practice, the processing unit 330 includes a NFC chip 331, a random access memory 332, a read-only memory 333, an input / output interface 334, and an LED lamp bead 335. The NFC chip 331 is used to process the received signal, and in particular, it can be programmed to process the unlocking code in the unlocking signal. The relevant program code is stored in the read-only memory 333, and the data generated when the NFC chip 331 is in operation can be temporarily stored in the random access memory 332. The input / output interface 334 is a device for the processing unit 330 to communicate information with the NFC antenna unit 310 and the unlocking unit 320. The LED lamp bead 335 is electrically connected to the near field communication antenna unit 310, and can receive power from the near field communication antenna unit 310 to emit light. In other words, when the near field communication antenna unit 310 operates, the LED lamp bead 335 also emits light. In this way, the user who holds the smart phone 10 to unlock the lock assembly 200 can know whether the unlocking module 300 interacts with the smart phone 10, regardless of whether the unlocking operation is successful or failed.

[0036] The authentication operation is the specific condition of the aforementioned unlocking module 300, and the specific condition is met when the authentication is successful. According to the present invention, there are three types of authentication operations. The first type is to compare the verification code, and the authentication operation includes two steps. The first step is to retrieve a verification code pre-stored in the processing unit 330. The verification code can be a specific combination of a string of English letters and / or numbers. The second step is to compare the unlocking code with the verification code, and if the two are the same, the authentication is successful. The unlocking code can be input by the user from the smart phone 10, included in the unlocking signal sent to the unlocking module 300. The unlocking code can also be pre-stored in the near field communication unlocker 7, and is not manually set and sent to the unlocking module 300. The so-called "authorized unlocking" means that the unlocking verification code can be controlled, and only people who can browse the confidential file S are granted to open the lock group 200.

[0037] The second type of authentication operation is to decrypt with a symmetric key. If the decryption is successful, unlocking is allowed. At this time, the authentication operation includes two steps. The first step is to take out a second plaintext and the symmetric key pre-stored in the processing unit 330 if the verification code is a ciphertext encrypted with a symmetric key to a first plaintext. The symmetric key is generated using a symmetric key algorithm. The symmetric key algorithm can be AES, ChaCha20, 3DES, Salsa20, DES, Blowfish, IDEA, RC5, RC6 and other algorithms. The present invention does not limit the type of use. The first plaintext is a specific combination of a string of English letters and / or numbers in the near field communication unlocker 7, which becomes another specific combination of English letters and / or numbers after being encrypted with the symmetric key. The second step is to decrypt the ciphertext with the symmetric key. If the result after decryption is that the second plaintext is the same as the first plaintext, the authentication is successful. In terms of management, the near field communication unlocker 7 authorized to open the lock set 200 must have the same plaintext as the processing unit 330 in advance before unlocking can be performed. Encrypting and decrypting plaintext with symmetric keys is a technology that ensures that the plaintext cannot be stolen by unauthorized persons or tampered with during transmission.

[0038] The third type of authentication operation is to decrypt with an asymmetric key. If the decryption is successful, the lock can be unlocked. At this time, the authentication operation includes four steps. The first step is for the processing unit 330 to generate a first random number, and transmit the first random number and a near-field communication chip serial number of the processing unit 330 to the near-field communication unlocker 7. The type of the first random number is not limited. The second step is for the near-field communication unlocker 7 to transmit the first random number and the near-field communication chip serial number to a public key infrastructure (PKI) platform. The public key infrastructure platform uses a public key in a pair of keys generated by the near-field communication chip serial number to digitally sign the first random number to obtain the unlocking code. The public key infrastructure platform is a cloud infrastructure composed of hardware, software, participants, management policies and processes, and its purpose is to create, manage, distribute, use, store and restore digital certificates. The public key infrastructure platform links the user's personal identity with the public key through the digital certificate certification agency. In the application of the present invention, the personal identity is the near-field communication chip serial number, which is unique. The link relationship is established through the registration and publishing process, which can be completed by various software of the digital certificate certification agency or under human supervision. The algorithm for generating the pair of keys is an asymmetric key algorithm, commonly used are RSA algorithm, digital signature algorithm and elliptic curve cryptography algorithm, which are not limited by the present invention. The third step is for the processing unit 330 to use a private key in the stored pair of keys to digitally verify the unlocking code to obtain a second random number. The fourth step is to compare the second random number with the first random number. If the two are the same, the authentication is successful. Although the process of encryption and decryption using a public key infrastructure platform plus an asymmetric key is complicated, it is safer than using symmetric keys for encryption and decryption.

[0039] Since the position where the NFC antenna unit 310 is combined with the protective shell 100 may not be known to every user of the NFC unlocker 7 who wants to unlock the lock, in order to enable an effective connection between the NFC unlocker 7 and the NFC antenna unit 310 (the effective distance of NFC is only about 10 cm), an indicator 113 is further printed on the outside of the protective shell 100, and the indicator 113 points to the position of the NFC antenna unit 310. In this way, the user only needs to move the NFC unlocker 7 of the smartphone 10 as close as possible to the position indicated by the indicator 113. In addition, in order to provide the function of distinguishing folders and facilitate finding carried documents, relevant text data can be recorded on part of the appearance of the protective shell 100 or the lock set 200 by printing, laser engraving, embossing, etc. For example Figure 1 The first lock 210 has a laser engraved area 211, on which information related to the folder itself, such as the folder serial number and the near field communication chip serial number, is printed or laser engraved, and the unit to which the folder belongs and the confidentiality level are also noted, which can be recognized at a glance.

[0040] During use, the user can unlock the phone by placing the smartphone 10 close to the unlocking module 300 to indicate the position of the NFC unlocker 7 .

[0041] In the composition structure of the paper product protection tool with authorized unlocking of the present invention, except that the use of the lock group is based on convenience (the volume should not be too large and it is best not to consume power or the power consumption can be lower than the power provided by the near field communication unlocker), the structure of the unlocking module is basically unchanged (except that the unlocking unit will change due to different types of lock groups), and the major changes are the type of the protection shell and the installation method between the lock group. The following uses several embodiments to illustrate other aspects of the paper product protection tool with authorized unlocking.

[0042] See also Figure 3 , which shows another paper product protection tool 2 with authorized unlocking according to the second embodiment of the present invention. The paper product protection tool 2 with authorized unlocking is also a folder, but its shape is different from the paper product protection tool 1 with authorized unlocking. The protection shell 100 of the paper product protection tool 2 with authorized unlocking is formed by two hard square thin plates connected to each other rotatably at corresponding sides. Confidential paper products, such as confidential documents S, can be sandwiched between the two hard square thin plates. The protection shell 100 can be moved along the Figure 3 The first lock 210 or the second lock 220 can be further installed on an extension object connected to the protective shell 100. In this embodiment, the extension object is a fixed rope 101. The two ends of the fixed rope 101 are connected to the two opposite sides of the same hard square thin plate, and the second lock 220 is installed on the middle end of the fixed rope 101. In use, the fixed rope 101 crosses another hard square thin plate, so that the second lock 220 can be locked with the first lock 210. When locked, the tension of the fixed rope 101 makes the two hard square thin plates tightly attached and unable to rotate with each other to open, thereby effectively preventing the confidential document S from being stolen. In this embodiment, the protective housing 100 is still made of an opaque material; in addition to the aforementioned opaque plastic, metal and cardboard, wood or bamboo can also be used as the material. In this embodiment, the near field communication unlocker 7 is installed in a smart bracelet 30, and the user can unlock the smart bracelet 30 by bringing the position of the near field communication unlocker 7 marked on the smart bracelet 30 close to the unlocking module 300.

[0043] See also Figure 4, the figure shows another state of a paper product protection tool 3 with authorized unlocking according to the third embodiment of the present invention. The paper product protection tool 3 with authorized unlocking is also a folder, but its shape is different from the previous two. The protective shell of the present invention can be formed by connecting at least two corresponding sides of two hard square thin plates. In this embodiment, the protective shell 100 of the paper product protection tool 3 with authorized unlocking is formed by connecting two corresponding sides of two hard square thin plates. Confidential paper products, such as confidential documents S, can be sandwiched between the two hard square thin plates. The protective shell 100 is a confidential document S elastically sandwiched between hard square thin plates, which can be moved along Figure 4 The two hard square thin plates are pulled apart in the direction of the double arrow line in the figure to take out the confidential document S (i.e., the aforementioned opening action). However, even if the protective housing 100 is in the closed state, the confidential document S may be taken out from the unconnected part of the two hard square thin plates, so additional protective facilities are also required. In this embodiment, the extended object is a fixed ribbon 102. One end of the fixed ribbon 102 is connected to the side of one of the hard square thin plates, and the second lock 220 is installed on the other end of the fixed ribbon 102. At the same time, the unlocking module 300 is also installed on the side of the second lock 220 on the fixed ribbon 102. In use, the fixed ribbon 102 crosses over another hard square thin plate, so that the first lock 210 at the end can be locked with the second lock 220. When locked, the tension of the fixed ribbon 102 makes the two hard square thin plates stick tightly together, and even if the hard square thin plates near the double arrow line are pulled apart, the confidential document S cannot be stolen. It should be noted that in this embodiment, the NFC unlocker 7 is installed in a round plastic shell 30 similar to a coin, and the user can unlock the lock by bringing the round plastic shell 30 close to the unlocking module 300. The use of the round plastic shell 30 can be convenient for companies to issue to specific personnel for authorization to decrypt files and is also convenient for management.

[0044] See also Figure 5 , which shows another paper product protection tool 4 with authorized unlocking according to the fourth embodiment of the present invention. The paper product protection tool 4 with authorized unlocking can be a notebook book spine or a diary book spine, protecting the pages or loose-leaf of the paper products therein. In addition to temporarily placing and protecting paper products therein to prevent them from being obtained by unauthorized persons, the protective shell of the present invention can also permanently fix the protected paper products therein. In this embodiment, the protective shell 100 of the paper product protection tool 4 with authorized unlocking is formed by a connecting plate 104 movably connected between corresponding sides of two hard square thin plates 103. Confidential paper products, such as loose-leaf documents D, can be fixed in the two hard square thin plates 103. In order to prevent the book spine from being opened by unauthorized persons along the Figure 5The arc-shaped double arrow line is opened (i.e., the aforementioned opening action) to read the confidential data therein, so additional protective facilities are also required. In this embodiment, the extended object is a seal 105. One end of the seal 105 is connected to the side of one of the hard square thin plates 103, the first lock 210 is installed at the other end of the seal 105, and the unlocking module 300 is installed above the first lock 210. The second lock 220 is correspondingly installed on the front of another hard square thin plate 103. When in use, the seal 105 crosses the side of the loose-leaf document D, so that the first lock 210 at the end can be locked with the second lock 220. When locked, the tension of the seal 105 prevents the two hard square thin plates 013 from moving relative to each other, thereby protecting the contents of the loose-leaf document D from being stolen. In this embodiment, the near field communication unlocker 7 is installed at the end of a stylus 40, and the user can unlock it by bringing the end close to the unlocking module 300.

[0045] See also Figure 6 , which shows yet another paper product protection tool 5 with authorized unlocking according to the fifth embodiment of the present invention. The paper product protection tool 5 with authorized unlocking is a file box that protects the confidential document S therein. In this embodiment, the protective shell 100 of the paper product protection tool 5 with authorized unlocking is formed by one side of a hard square thin plate 106 movably connected to one side of a hard square open empty shell 107, and the confidential document S is placed in the hard square open empty shell 107. The area of ​​the hard square thin plate 106 can cover the opening of the hard square open empty shell 107, or be clamped therein to prevent the confidential document S from slipping out. In order to prevent the document box from being opened by unauthorized persons along the Figure 6 The first lock 210 is installed on the non-connected side of the hard square open shell 107, the unlocking module 300 is installed on the inside of the hard square open shell 107 relative to the first lock 210, and the second lock 220 is installed on the hard square thin plate 106 corresponding to the first lock 210. When in use, the hard square thin plate 106 is rotated toward the hard square open shell 107 and covers it, and the first lock 210 is locked with the second lock 220. In this embodiment, the near field communication unlocker 7 is installed in a smart watch 50, and the user can unlock the smart watch 50 by bringing it close to the unlocking module 300. In terms of materials, the hard square thin plate 106 can use the aforementioned materials. The material of the hard square open shell 107 can be opaque plastic, metal, cardboard, wood chips or bamboo chips.

[0046] See also Figure 7, which shows another paper product protection tool 6 with authorized unlocking according to the sixth embodiment of the present invention. The paper product protection tool with authorized unlocking is also a file box, protecting the confidential document S therein. This embodiment is similar to the previous embodiment in many places, and the only difference is that the protective shell 100 of the paper product protection tool 6 with authorized unlocking is formed by connecting one side of two hard square open shells 108. The two hard square open shells 108 can be exactly the same, or one hard square open shell 108 can be slightly larger than the other to form a relationship of upper and lower boxes, and the confidential document S is placed in the lower hard square open shell 108. When in use, the two hard square open shells 108 are rotated relative to each other, and the first lock 210 can be locked with the second lock 220. In this embodiment, the near field communication unlocker 7 is installed in the aforementioned smart watch 50, and the user can unlock the smart watch 50 by bringing it close to the unlocking module 300.

[0047] Although the present invention has been provided as above by specific implementation methods, it is not intended to limit the present invention. Any general technician with common knowledge in the relevant technical field should be able to make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the attached claims.

Claims

1. A paper product protection tool with authorized unlocking, characterized in that: Include: A protective shell capable of being opened in one direction to temporarily place or permanently fix a paper product in the protective shell; a lock assembly comprising a first lock and a second lock capable of being locked with the first lock, the first lock and the second lock being mounted directly or indirectly at different locations on the protective housing, wherein the unlocking action cannot be performed when the first lock is locked with the second lock; and An unlocking module, coupled to the first lock, comprising: a near field communication antenna unit, receiving an unlocking signal from a near field communication unlocker and converting electromagnetic energy from the near field communication unlocker into electrical energy; an unlocking unit, sending an unlocking signal to the first lock or performing an unlocking action on the first lock to prompt the first lock to release the locked second lock; and A processing unit is electrically connected to the near field communication antenna unit and coupled to the unlocking unit, performs an authentication operation on an unlocking code in the unlocking signal, and when the authentication operation is successful, notifies the unlocking unit to send the unlocking signal or perform the unlocking action.

2. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: The protective shell forms a file folder, a notebook book back, a cash bag, a diary book back or a document box.

3. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: The first lock or the second lock is further installed on an extension object connected to the protective shell.

4. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: The protective shell is formed by a hard square thin plate that is bent once or multiple times and partially combined, by two hard square thin plates that are rotatably connected to each other on corresponding sides, by a connecting plate that can be movably connected between the corresponding sides of two hard square thin plates, by connecting at least two corresponding sides of two hard square thin plates, by one side of a hard square thin plate that is movably connected to one side of a hard square open hollow shell, or by connecting one side of two hard square open hollow shells.

5. The paper product protection tool with authorized unlocking according to claim 4, characterized in that: The material of the hard square open hollow shell is opaque plastic, metal, cardboard, wood or bamboo.

6. The paper product protection tool with authorized unlocking according to claim 4, characterized in that: The material of the hard square thin plate is opaque plastic, metal, cardboard, wood or bamboo.

7. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: The certification process includes the following steps: a) retrieving a verification code pre-stored in the processing unit; and b) Compare the unlock code with the verification code. If they are the same, the authentication is successful.

8. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: The certification process includes the following steps: c) if the verification code is a ciphertext obtained by encrypting a first plaintext using a symmetric key, retrieving a second plaintext and the symmetric key pre-stored in the processing unit; and d) Decrypting the ciphertext with the symmetric key; if the decrypted result shows that the second plaintext is identical to the first plaintext, the authentication is successful.

9. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: The certification process includes the following steps: e) generating a first random number by the processing unit, and transmitting the first random number and a near field communication chip serial number of the processing unit to the near field communication unlocker; f) the NFC unlocker transmits the first random number and the NFC chip serial number to a public key infrastructure platform, and the public key infrastructure platform digitally signs the first random number using a public key from a pair of keys generated using the NFC chip serial number to obtain the unlock code; g) the processing unit uses a private key from the stored key pair to digitally verify the unlocking code to obtain a second random number; h) Compare the second random number with the first random number. If they are identical, the authentication is successful.

10. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: An indicator is also printed on the outside of the protective shell, and the indicator points to the location of the near field communication antenna unit.

11. The paper product protection tool with authorized unlocking according to claim 1, characterized in that: The unlocking module further includes an LED lamp bead, which is electrically connected to the near field communication antenna unit. When the near field communication antenna unit is in operation, the LED lamp bead emits light.

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