TWI873813B - Paper product protection tool with authorized unlock - Google Patents

Abstract

A paper product protection tool with authorized unlock is disclosed.　It includes a protective casing, a lock group and an unlocking module. The present invention utilizes near-field communication technology to unlock the lock group by authenticating an unlocking code through the unlocking module, and then obtain the protected paper product in the protective casing. During the unlocking process, the unlock code is authorized to be used by the unlocker, so that the person who has browsed the protected paper product can be controlled and tracked.

Description

Paper product protection tool with authorized unlocking

The present invention relates to a paper product protection tool, in particular to a paper product protection tool with authorized unlocking.

In the current information explosion, in order to make information exchange between people more convenient and reduce the waste of resources, many circulated data types have become paperless. However, even with the gradual reduction of paper documents, some special confidential documents are still mainly carried on paper due to their confidentiality. 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 secrets, people who have read the contents must also remember the time and timing of their unblocking to ensure that the secrets are not leaked. For the relevant requirements for the protection of these paper documents, please refer to the ISO 27001/ISO 27002 specifications.

ISO 27001/ISO 27002 standards mention that organizations need to use security measures to protect documents. On the other hand, the standards also stipulate that information labels should be placed on physical documents with relevant information such as supplier, expiration date, contract date, and purchase items, while also complying with information hiding so that irrelevant personnel cannot distinguish. Therefore, labeling folders restricted by the standards has become a difficult task.

If the number of documents and folders regulated by ISO 27001/ISO 27002 is not high in the company's total number, 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 documents that are authorized to be read. For example, if the company has 500 folders protecting confidential documents in circulation, if a combination of physical mechanical locks and keys is used, the distribution and storage of keys must be performed by a dedicated person; if a combination lock or other electronic encryption lock is used, the administrator cannot remember it at all, which will cause other information security incidents such as password leakage and password storage.

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 if business managers clip sales customer information, related quotations and performance summary tables in notebooks, it is easy for others to read them and leak them. Another high-value paper product is banknotes. If people carry large amounts of banknotes out without better protection, once they are exposed, there is a risk of being robbed or even personal injury.

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 very cumbersome; it is difficult to manage a large number of passwords and keys; in addition, it is impossible to provide additional functions such as labeling, authorization management, browsing history, and anti-cracking advanced encryption in addition to unlocking, which makes the product unable to fully comply with ISO 27001/ISO 27002 specifications. In order to meet the regulatory requirements and solve the practical difficulties faced by the market at the same time, the present invention is proposed.

This paragraph extracts and compiles certain features of the invention. Other features will be disclosed in the following paragraphs. Its purpose is to cover various modifications and similar arrangements within the spirit and scope of the attached patent application.

In order to meet the above requirements, the present invention proposes a paper product protection tool with authorized unlocking. The paper product protection tool with authorized unlocking includes: a protection shell, which can perform an opening action in one direction to temporarily place or permanently fix a paper product in the protection shell; a lock assembly, including a first lock and a second lock that can be openably locked with the first lock, the first lock and the second lock are respectively directly or indirectly installed at different positions on the protection shell, and 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, electrically connected to the near field communication antenna unit 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.

Preferably, the protective shell forms a document folder, a notebook spine, a cash bag, a diary spine or a document box.

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

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 at corresponding sides, by a connecting plate that can be 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 can be movably connected to one side of a hard square open hollow shell, or by connecting one side of two hard square open hollow shells.

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

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

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 unlocking code with the verification code, if the two are the same, the authentication is successful.

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, taking out 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.

According to the present invention, the authentication operation may further 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 unlocking code to obtain a second random number; h) The second random number is compared with the first random number. If the two are the same, the authentication is successful.

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.

Preferably, the unlocking module may further include an LED lamp bead, which is electrically connected to the near-field communication antenna unit, and when the near-field communication antenna unit is in operation, the LED lamp bead emits light.

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

The present invention will be described in more detail with reference to the following embodiments.

Please see FIG. 1 , which shows 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 confidential documents, notebooks (loose-leaf or book-like) for recording confidential information, 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 assembly 200 and an unlocking module 300. These technical components are described in detail below with reference to relevant drawings.

The protective shell 100 is a main body of the paper product protection tool 1 with an authorized unlocking function and is used to place the paper product. In a certain state, the paper product in the protective shell 100 cannot be taken out. In FIG1 , the protective shell 100 forms a file 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. The external shape of the confidential document S in FIG1 is shown by a dotted line), and cannot be known by unauthorized persons. The material used in the protective shell 100 must have a certain hardness to resist damage and 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 that can place the confidential document S 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 in contact with the main body, the confidential document S is completely sealed. As can be seen from Figure 1, the protective shell 100 can be opened in one direction to temporarily place the confidential document S in the protective shell 100. On the contrary, if the opening action is not performed, the confidential document S cannot be placed in the protective case 100, or the confidential document S placed in the protective case 100 cannot be taken out. The opening action is to rotate the cover 112 away from the main body of the protective case 100 in the direction indicated by the arrow circle in FIG. 1. In practice, the material of the hard square thin plate can be metal or cardboard in addition to opaque plastic.

The lock assembly 200 is a technical element for executing the action of restricting the opening of the protective housing 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 complex design, and is even composed of many parts. The lock assembly 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 an openable and closable manner. That is, the second lock 220 of the lock finger of the present invention has a corresponding structure designed to match the structure 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 set 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 type of the lock set 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 shell 100. In FIG. 1 , the first lock 210 is mounted on the main body, and the second lock 220 is mounted on the cover 112. When the cover 112 is close to the main 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 be freely separated from the main body, allowing the user to put the confidential document S into the main body or take it out of the main body. In other words, when the first lock 210 and the second lock 220 are locked, the opening action cannot be performed.

The unlocking module 300 is a technical component 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. The unlocking module 300 in FIG1 is below the first lock 210 and cannot be directly viewed from the outside, 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 welded on it. In order to have a better understanding of the structure of the unlocking module 300, please refer to FIG2, which is a component block diagram 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 NFC antenna unit 310 is a tool for receiving NFC signals and obtaining electrical energy therefrom. More precisely, the NFC antenna unit 310 can receive an unlocking signal from a NFC unlocker 7 and convert the electromagnetic energy emitted by the NFC unlocker 7 into electrical energy. The NFC unlocker 7 is a hardware created based on the NFC reader architecture of the NFC specification, and has its own power supply hardware, such as a mercury battery, or is connected to an external power source. This embodiment uses the NFC 13.56MHz frequency band to transmit the unlocking signal, and uses the coil inductive power supply method to provide the unlocking module 300 with the power required for unlocking. 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 by power provided by the smart phone 10. The unlocking signal is an electromagnetic wave signal, which carries an unlocking code. As shown in FIG1 , 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 subsequent embodiments is also indicated in the same way), and the electromagnetic energy is transmitted from the NFC unlocker 7 to the unlocking module 300, and is converted into electrical energy by the NFC antenna unit 310.

The unlocking unit 320 is a technical component 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 assembly 200. If the lock assembly 200 is a mechanical lock, the first lock 210 needs to be subjected to external impact or rotation to release the complex mechanical lock. 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 the request from the processing unit 330 to release the lock of the second lock 220 by the first lock 210, 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 assembly 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 210 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.

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 operation. 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, 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 with the NFC antenna unit 310 and the unlocking unit 320. The LED lamp bead 335 is electrically connected to the NFC antenna unit 310, and can receive power from the NFC antenna unit 310 to emit light. In other words, when the NFC antenna unit 310 is in operation, the LED lamp bead 335 emits light accordingly. In this way, a user holding 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.

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 aspects of the authentication operation. The first aspect 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. If the two are the same, the authentication is successful. The unlocking code can be input by the user from the smart phone 10 and 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 sent to the unlocking module 300 without human setting. The so-called "authorized unlocking" means that the unlocking verification code can be controlled and only those who can browse the confidential file S are allowed to open the lock set 200.

The second form of the 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 retrieve a second plaintext and the symmetric key pre-stored in the processing unit 330 if the verification code is a ciphertext encrypted with a first plaintext using a symmetric key. 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. After being encrypted with the symmetric key, it becomes another specific combination of English letters and/or numbers. The second step is to decrypt the ciphertext with the symmetric key. If the decrypted result is that the second plaintext is the same as the first plaintext, the authentication is successful. From a management perspective, the NFC unlocker 7 that is authorized to open the lock assembly 200 must have the same plaintext as the processing unit 330 in advance before the unlocking can be performed. Encrypting and decrypting plaintext with a symmetric key is a technology that ensures that the plaintext is not stolen by unauthorized persons and will not be tampered with during transmission.

The third form of the authentication operation is to decrypt with an asymmetric key. If the decryption is successful, unlocking is allowed. 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-based infrastructure consisting of hardware, software, participants, management policies and processes, which is used to create, manage, distribute, use, store and recover digital certificates. The public key infrastructure platform links the user's personal identity with the public key through the digital certificate certification authority. 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 publication process, which can be completed by various software of the digital certificate certification authority or under human supervision. The algorithm for generating the pair of keys is an asymmetric key algorithm, and the commonly used algorithms include RSA algorithm, digital signature algorithm and elliptical curve cryptographic 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 asymmetric keys is complicated, it is safer than using symmetric keys for encryption and decryption.

Since the position of the NFC antenna unit 310 combined with the protective housing 100 may not be known to every user of the NFC unlocker 7 to be unlocked, in order to effectively connect 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 housing 100, and the indicator 113 points to the position of the NFC antenna unit 310. In this way, the user only needs to place the NFC unlocker 7 of the smart phone 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 the carried documents, the protective shell 100 or the lock assembly 200 may be printed, laser engraved, embossed, etc. on the surface of the part to record the relevant text data. For example, the first lock 210 in FIG1 has a laser engraved area 211, which is printed or laser engraved with information related to the folder itself, such as the folder serial number and the near field communication chip serial number, and also indicates the unit to which the folder belongs and the confidentiality level, so that people can recognize it at a glance.

When in use, the user can unlock the phone by placing the smartphone 10 near the position of the NFC unlocker 7 close to the unlocking module 300 .

In the composition structure of the paper product protection tool with authorized unlocking of the present invention, except that the use of the lock set 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 sets), and the major changes are the type of the protection shell and the installation method between the lock set. The following uses several embodiments to illustrate other aspects of the paper product protection tool with authorized unlocking.

Please see FIG. 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 file folder, but its shape is different from that of the paper product protection tool 1 with authorized unlocking. The protective shell 100 of the paper product protection tool 2 with authorized unlocking is formed by two hard square thin plates that are rotatably connected to each other at the corresponding sides, and confidential paper products, such as confidential documents S, can be clamped between the two hard square thin plates. The protective shell 100 can be opened along the direction of the arc double arrow in FIG. 3 to take out the confidential document S (i.e., the aforementioned opening action). However, even when the protective shell 100 is closed, the confidential document S may "slip" out from the unconnected portion of the two hard square thin plates, so additional protective facilities are required. According to the present invention, 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 opposite sides of the same hard square thin plate, and the second lock 220 is installed at the middle end of the fixed rope 101. In use, the fixed rope 101 crosses over 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 fixing 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 shell 100 is still made of opaque material; in addition to the aforementioned opaque plastic, metal and cardboard, wood or bamboo can also be used as a material. In this embodiment, the near-field communication unlocker 7 is installed in a smart bracelet 20, and the user can unlock the smart bracelet 20 by bringing the position of the near-field communication unlocker 7 close to the unlocking module 300.

Please see FIG. 4, which shows another 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 file folder, but the shape is different from the previous two. The protection 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 protection 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 flexible clamping device for holding a confidential document S between two hard square thin plates. The two hard square thin plates can be pulled apart along the double arrow line in FIG. 4 to take out the confidential document S (i.e., the aforementioned opening action). However, even if the protective shell 100 is closed, the confidential document S may be taken out from the unconnected portion 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, an unlocking module 300 is also installed on the second lock 220 side of the fixed ribbon 102. In use, the fixed ribbon 102 crosses 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 file S cannot be stolen. It should be noted that in this embodiment, the near field communication unlocker 7 is installed in a round plastic shell 30 similar to a coin, and the user can unlock it 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 the company to issue it to specific personnel for authorized decryption file reading, and it is also convenient for management.

Please see 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 spine or a diary spine to protect the pages or loose-leaf pages 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 two hard square thin plates 103 with a connecting plate 104 movably connected between the corresponding sides. 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 back from being opened by unauthorized persons along the arc-shaped double arrow line in FIG. 5 (i.e., the aforementioned opening action) and reading the confidential information therein, 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 on 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 103 from moving relative to each other, thereby protecting the contents of the loose-leaf document D from being stolen. In this embodiment, the NFC unlocker 7 is centrally mounted on the end of a touch pen 40, and the user can unlock the door by bringing the end close to the unlocking module 300.

Please refer to FIG6, which shows a still further 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 document 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 movably connecting one side of a hard square thin plate 106 with 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 sandwiched therein to prevent the confidential document S from slipping out. In order to prevent the document box from being opened by an unauthorized person along the arc double arrow line in FIG. 6 (i.e., the aforementioned opening action) and obtaining the confidential document S therein, the first lock 210 is installed on the outside of 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 NFC 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 hollow shell 107 can be opaque plastic, metal, cardboard, wood or bamboo.

Please see FIG. 7 , which shows yet 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 document box, which protects 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 empty shells 108. The two hard square open empty shells 108 can be completely the same in shape, or one hard square open empty shell 108 can be slightly larger than the other to form a relationship between upper and lower boxes, and the confidential document S is placed in the lower hard square open empty shell 108. When in use, the two hard square open hollow 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.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the relevant technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be defined by the scope of the attached patent application.

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: Smart phone 20: Smart bracelet 30: Round plastic case 40: Stylus pen 50: Smart watch 100: Protective case 101: Fixed rope 102: Fixed ribbon 103: Hard square thin plate 104: Connecting plate 105: 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 assembly 210:First lock 211:Laser engraving area 220:Second lock 300:Unlock module 310:Near field communication antenna unit 320:Unlock unit 330:Processing unit 331:Near field communication chip 332:RAM 333:Read-only memory 334:I/O interface 335:LED lamp beads D:Loose-leaf document S:Confidential document

FIG. 1 shows a paper product protection tool with authorized unlocking according to a first embodiment of the present invention.

FIG. 2 is a block diagram of components of a lock module.

FIG. 3 shows a paper product protection tool with authorized unlocking according to a second embodiment of the present invention.

FIG. 4 shows a paper product protection tool with authorized unlocking according to a third embodiment of the present invention.

FIG. 5 shows a paper product protection tool with authorized unlocking according to a fourth embodiment of the present invention.

FIG. 6 shows a paper product protection tool with authorized unlocking according to a fifth embodiment of the present invention.

FIG. 7 shows a paper product protection tool with authorized unlocking according to a sixth embodiment of the present invention.

1: Paper product protection tool with authorized unlocking

7: Near Field Communication Unlocker

10: Smartphone

100: Protective shell

111: Edge

112: Cover

113:Indicator

200: Lock set

210: First lock

211: Laser carving area

220: Second lock

300: Unlock module

S: Confidential file

Claims (8)

A paper product protection tool with authorized unlocking, comprising: 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 assembly, comprising a first lock and a second lock that can be openably 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, and 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, comprising: A near field communication antenna unit receives an unlocking signal from a near field communication unlocker and converts the electromagnetic energy from the near field communication unlocker into electrical energy; An unlocking unit sends an unlocking signal to the first lock or performs 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 NFC antenna unit and coupled to the unlocking unit, performs an authentication operation on a 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 operation, wherein the authentication operation is decrypted with an asymmetric key, and includes the following steps: The processing unit generates a first random number, and transmits the first random number and a NFC chip serial number of the processing unit to the NFC unlocker; 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 uses a public key in a pair of keys generated by the NFC chip serial number to digitally sign the first random number to obtain the unlocking code; The processing unit uses a private key in the stored pair of keys to digitally verify the unlocking code to obtain a second random number; and Compare the second random number with the first random number, and if the two are the same, the authentication is successful. A paper product protection tool with authorized unlocking as described in claim 1, wherein the protection shell forms a folder, a notebook spine, a cash bag, a daily notebook spine or a document box. A paper product protection tool with authorized unlocking as described in claim 1, wherein the first lock or the second lock is further mounted on an extension object connected to the protective shell. A paper product protection tool with authorized unlocking as described in claim 1, wherein the protection 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 at corresponding sides, by a connecting plate that can be 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 can be movably connected to one side of a hard square open empty shell, or by connecting one side of two hard square open empty shells. A paper product protection tool with an authorized unlocking function as described in claim 4, wherein the material of the hard square open hollow shell is opaque plastic, metal, cardboard, wood or bamboo. A paper product protection tool with authorized unlocking as described in claim 4, wherein the material of the hard square thin plate is opaque plastic, metal, cardboard, wood or bamboo. A paper product protection tool with authorized unlocking as described in claim 1, wherein an indicator is further printed on the outside of the protection shell, and the indicator points to the location of the near-field communication antenna unit. A paper product protection tool with authorized unlocking as described in claim 1, wherein the unlocking module further comprises an LED lamp bead, the LED lamp bead is electrically connected to the near-field communication antenna unit, and the LED lamp bead emits light when the near-field communication antenna unit is in operation.