System for quantum-safe access control mechanisms

Abstract

A quantum-safe access control system consisting of: (a) a central processing unit (CPU) configured to process authentication requests; (b) a quantum-safe cryptographic module coupled to the CPU comprising a lattice-based encryption engine and a quantum-safe key management system, wherein the cryptographic module is configured to encrypt authentication data and generate digital signatures for authentication; (c) an authentication device comprising a secure, quantum-resistant hardware module, wherein the authentication device is configured to store user credentials in a protected memory area and encrypts the credentials using quantum-safe cryptographic techniques before the encrypted data is transferred to the CPU; (d) a secure communication interface configured for the secure transmission of encrypted authentication data between the authentication device and the CPU via a quantum-resistant channel; (e) a hardware security interface integrated into the authentication device, comprising a physical tamper detection system and a secure start mechanism, wherein the tamper detection system is configured to detect physical access attempts and trigger security protocols to prevent unauthorized decryption of the confidential data stored in the device.

Description

Field of the invention:

[0001] The present invention relates to a system for access control mechanisms that is specifically designed to be quantum-safe. It addresses the need for secure and robust systems in environments that may be vulnerable to attacks by quantum computers. Background of the invention:

[0002] Conventional access control mechanisms rely heavily on cryptographic techniques such as RSA or ECC (Elliptic Curve Cryptography), which are based on the difficulty of certain mathematical problems (e.g., factoring large numbers or solving discrete logarithms). However, the advent of quantum computers poses a significant risk to these systems, as quantum techniques such as Shor's can efficiently solve these problems and potentially crack conventional encryptions in seconds. Therefore, it is crucial to develop access control systems that are resistant to quantum computing capabilities.

[0003] Current access control mechanisms utilize various forms of authentication, including passwords, biometrics, and token-based systems. While these mechanisms are effective in a classical computing context, they are not designed to withstand quantum-based attacks. There is a growing need for a next-generation access control system that uses quantum-safe cryptographic techniques and quantum-safe hardware. The system described here meets this need by integrating quantum-resistant techniques and hardware-based solutions to provide robust and future-proof security.

[0004] The rapid development of quantum computing has raised significant concerns about the security of traditional cryptographic systems, which form the backbone of modern access control mechanisms. Cryptographic protocols such as RSA (Rivest-Shamir-Adleman) and ECC (Elliptic Curve Cryptography) are based on mathematical problems that are difficult to solve with classical computing power, such as factoring large integers or solving discrete logarithms. These systems are widely used to secure data, verify identities, and ensure the integrity of communications in various sectors, including finance, healthcare, and government.However, these cryptographic methods are vulnerable to attacks by future quantum computers, which are expected to use quantum techniques such as Shor's and Grover's to crack these established cryptographic systems much more efficiently than classical computers.

[0005] Shor's technique, which can factor large integers in polynomial time, poses a direct threat to RSA- and ECC-based encryption, as the security of these techniques is rooted in the difficulty of these problems. Grover's technique, on the other hand, can accelerate brute-force search techniques, thus threatening symmetric key systems such as AES (Advanced Encryption Standard). While symmetric key encryption is less vulnerable to quantum attacks than public key systems, Grover's technique can still reduce the security strength of symmetric ciphers by effectively halving the key length, which would mean that a 256-bit key could be reduced to a security level equivalent to a 128-bit key in the quantum world. Therefore, both asymmetric and symmetric encryption schemes are at risk in a post-quantum era.

[0006] Existing access control solutions generally rely on these traditional cryptographic techniques to authenticate users and protect confidential data. Access control is a crucial component of cybersecurity and includes mechanisms such as passwords, smart cards, biometric authentication, and multi-factor authentication (MFA). These mechanisms are designed to ensure that only authorized individuals can access certain resources. Password-based authentication, in particular, is one of the most commonly used methods in many systems, especially when combined with encryption and secure protocols such as TLS (Transport Layer Security). However, given the advent of quantum computing, these methods also present significant vulnerabilities.

[0007] The most widely used access control solution is currently the use of public-key cryptography, typically implemented with RSA or ECC techniques. These protocols enable secure key exchange, digital signatures, and data encryption over insecure channels. However, the vulnerability of these systems to quantum computers, which can factor large numbers or calculate discrete logarithms exponentially faster than classical computers, is a critical problem that makes them unsuitable for the age of quantum computing. For example, 2048-bit RSA keys, considered secure today, could be easily cracked by a quantum computer using Shor's technique. This means that confidential information secured using these methods could be decrypted within hours or even minutes, posing a serious risk to data confidentiality and integrity.

[0008] Biometric systems, another popular form of authentication, offer a higher level of security because they rely on unique physical characteristics such as fingerprints, retinal scans, or facial recognition. These methods are less vulnerable to attacks such as brute-force password guessing, but they are not immune to security issues. For example, once compromised, biometric data cannot be changed like passwords, presenting a significant vulnerability if an attacker gains access to biometric databases. Furthermore, biometric systems are not inherently quantum-safe because they often rely on the same underlying cryptographic protocols for the secure storage and transmission of biometric templates.If the cryptographic methods used to secure these templates are vulnerable to quantum attacks, so are the biometric authentication systems themselves.

[0009] Another widely used solution is smart cards, which store authentication data on physical devices. These cards often use public-key cryptography for secure authentication in a variety of access control applications. However, like biometric systems, smart cards are based on cryptographic protocols that may not be resistant to quantum computing attacks. Although smart cards offer an additional layer of protection compared to purely software-based systems, they are still based on encryption standards such as RSA or ECC, which are not quantum-safe.

[0010] Another widely used security measure is multi-factor authentication (MFA), which combines something the user knows (a password), something the user has (a smart card or token), and something the user is (a biometric). MFA provides additional layers of protection and is generally more resilient to attacks than single-factor authentication. However, MFA is still vulnerable to threats from quantum computers. For example, one-time password (OTP) systems that generate temporary access codes may be based on symmetric key cryptography, which could be compromised by Grover's technique, potentially making it easier for attackers to penetrate systems secured by such methods. The fundamental problem with MFA, like other access control solutions, is that it still relies on cryptographic protocols that are vulnerable to quantum attacks.

[0011] Despite the vulnerabilities of these traditional access control mechanisms in the age of quantum computing, various initiatives have been proposed to address this new threat. One of the most promising solutions is the development of post-quantum cryptography (PQC), which aims to develop cryptographic techniques that are secure against both classical and quantum attacks. PQC encompasses a variety of cryptographic approaches, such as lattice-based cryptography, hash-based signatures, code-based cryptography, and multivariate quadratic equations, all of which are considered resistant to quantum attacks. These new techniques are intended to replace traditional public-key cryptography schemes such as RSA and ECC, providing a quantum-safe alternative for securing data and authenticating users.

[0012] One of the most well-known families of PQC techniques is lattice-based cryptography, which is based on the difficulty of problems such as the Shortest Vector Problem (SVP) and the Learning With Errors (LWE) problem. Lattice-based encryption schemes are considered resistant to Shor's and Grover's techniques, making them one of the most promising candidates for quantum-safe cryptographic protocols. Another promising class of PQC is hash-based signatures, which use hash functions to create secure digital signatures. While hash-based signatures are efficient and relatively easy to implement, they tend to require larger key sizes and have scalability limitations. Furthermore, PQC techniques are still under evaluation and are not yet widely used in practice.

[0013] As quantum computing continues to evolve, the development of quantum-safe access control systems will be critical to ensuring the security and integrity of sensitive data and resources in a post-quantum world. Summary of the invention:

[0014] The invention provides a quantum-secure access control system comprising both hardware and software components. The system ensures that all sensitive data involved in the authentication and access control process remains secure, even in the presence of a quantum adversary. The system includes a quantum-resistant encryption module, a secure authentication device, and a special hardware interface designed to be resistant to quantum decryption methods.

[0015] In particular, the invention is a quantum-safe encryption mechanism that uses lattice-based cryptography, hash-based signatures, or other post-quantum cryptographic techniques considered secure against attacks by quantum computers. The encryption module works by generating and verifying cryptographic keys based on quantum-safe techniques.

[0016] The quantum-secure access control system includes a device for securely processing authentication requests. The device consists of a central processing unit (CPU) integrated with specialized quantum-secure cryptographic hardware, such as a lattice-based encryption accelerator or a post-quantum signature generator. This hardware is designed to perform encryption and decryption operations that cannot be efficiently solved using quantum techniques. The device also includes a secure storage module that stores cryptographic keys and authentication data in a way that ensures confidentiality even in the presence of quantum adversaries. Furthermore, the device integrates a communication interface for securely transmitting encrypted authentication data to external systems.

[0017] The primary objective of the invention is to provide a quantum-safe access control system that can effectively secure user authentication and data access in environments vulnerable to threats from quantum computers. This system aims to address growing concerns about the potential vulnerabilities of traditional cryptographic methods such as RSA and ECC, which are vulnerable to attacks by quantum techniques such as those developed by Shor and Grover. The system integrates quantum-safe cryptographic techniques, including lattice-based encryption and hash-based signatures, to ensure that confidential data exchanged during the authentication process remains secure even when using quantum computers.

[0018] Another objective of the invention is to develop a comprehensive and adaptable access control solution that can be deployed in various environments, from small enterprise systems to large infrastructure projects. The system should be scalable and offer the flexibility to meet different security requirements while maintaining the same level of quantum-resistant protection. It is also designed to integrate seamlessly with existing systems, allowing companies to improve their security without having to overhaul their entire infrastructure. Furthermore, the system provides redundancy and backup mechanisms that ensure continued functionality even in the event of a failure or breach of one of the authentication layers.

[0019] Furthermore, the invention aims to improve communication security within access control systems by implementing secure communication protocols such as Quantum Key Distribution (QKD) to protect the transmission of authentication data between devices and central access control systems. This ensures that data exchanged over potentially insecure channels remains protected from interception or tampering, further strengthening the system's overall security framework. The integration of attack detection mechanisms into the hardware security interface also adds a physical layer of protection, shielding the system from direct attacks. SHORT DESCRIPTION OF THE FIGURE

[0020] These and other features, aspects, and advantages of the present invention will become more readily understood when the following detailed description is read in conjunction with the accompanying drawings, in which like characters represent like parts throughout. Fig. Figure 1 shows a block diagram of a quantum-secure access control system.

[0021] Furthermore, those skilled in the art will appreciate that elements in the drawings are shown for convenience and may not necessarily be drawn to scale. For example, the flowcharts illustrate the method by key steps to enhance understanding of aspects of the present disclosure. Furthermore, with respect to the construction of the device, one or more components of the device may have been represented in the drawings by conventional symbols, and the drawing may show only the specific details relevant to understanding embodiments of the present disclosure in order not to clutter the drawings with details that would be readily apparent to those skilled in the art who would benefit from the description herein. Detailed description of the invention:

[0022] To facilitate an understanding of the principles of the invention, reference will now be made to the embodiment illustrated in the drawings and described in specific language. It is to be understood, however, that no limitation on the scope of the invention is intended thereby, since such changes and further modifications of the illustrated system and such further applications of the principles of the invention as illustrated therein are contemplated as would normally occur to one skilled in the art to which the invention pertains.

[0023] It will be understood by one skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the invention and are not intended to be limiting thereof.

[0024] References in this specification to "one aspect," "another aspect," or similar language mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Therefore, occurrences of the phrase "in one embodiment," "in another embodiment," and similar language throughout this specification may or may not all refer to the same embodiment.

[0025] The terms "comprises," "comprising," or other variations thereof are intended to cover non-exclusive inclusion, such that a process or method comprising a list of steps not only includes those steps, but may also include other steps not expressly listed or inherent in such process or method. Likewise, one or more devices or subsystems or elements or structures or components preceded by "comprises...a" does not preclude, without further limitation, the existence of other devices or other subsystems or other elements or other structures or other components or additional devices or additional subsystems or additional elements or additional structures or additional components.

[0026] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The system, methods, and examples provided herein are for illustrative purposes only and should not be considered limiting.

[0027] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0028] In Fig.Figure 1 shows a block diagram of a quantum-secure access control system. The system 100 includes: (a) a central processing unit (CPU) 102 configured to process authentication requests; (b) a quantum-secure cryptographic module 104 coupled to the CPU and including a lattice-based encryption engine 104(a) and a quantum-secure key management system 104(b), the cryptographic module configured to encrypt authentication data and generate digital signatures for authentication; (c) an authentication device 106 comprising a secure, quantum-resistant hardware module, the authentication device configured to store user credentials in a protected memory area and encrypt the credentials using quantum-secure cryptographic techniques before transmitting the encrypted data to the CPU.(d) a secure communications interface 108 configured to securely transmit encrypted authentication data between the authentication device and the CPU over a quantum-resistant channel; (e) a hardware security interface 110 integrated into the authentication device, including a physical tamper detection system and a secure boot mechanism, wherein the tamper detection system is configured to detect physical access attempts and trigger security protocols to prevent unauthorized decryption of confidential data stored in the device;

[0029] In one embodiment, the cryptographic module 104 comprises a lattice-based encryption technique selected from the group consisting of the Learning With Errors (LWE) problem, Ring-LWE, and NTRU encryption, wherein the lattice-based encryption technique is used to perform secure public key encryption for authentication data exchanged between the authentication device and the CPU.

[0030] In one embodiment, the quantum-secure key management system 104(b) within the cryptographic module uses a post-quantum key exchange protocol selected from the group consisting of New Hope, Kyber, and NTS-KEM, which protocol ensures secure key generation between the authenticating device and the CPU without resorting to quantum-vulnerable techniques.

[0031] In one embodiment, the authentication device 106 further comprises a biometric input module, wherein the biometric input module comprises a fingerprint scanner, a retinal scan sensor, or a facial recognition camera, and wherein the biometric data is captured, encrypted by the quantum-safe cryptographic module, and transmitted to the CPU for verification.

[0032] In one embodiment, the authentication device 106 further includes a multi-factor authentication (MFA) module, wherein the MFA module generates a one-time password (OTP) in response to a user input and encrypts the OTP using the quantum-safe cryptographic module before transmitting it to the CPU for verification.

[0033] In one embodiment, the CPU 102 is configured to evaluate the authentication request using a quantum-safe authentication technique, wherein the authentication technique comprises a quantum-safe public key cryptography scheme in combination with biometric data verification, and the CPU grants or denies access based on the comparison between the encrypted biometric data and the stored encrypted templates.

[0034] In one embodiment, the secure communication interface 108 uses Quantum Key Distribution (QKD) protocols to securely exchange encryption keys between the authentication device and the CPU, where the QKD protocol utilizes quantum entanglement and measurement-based security to prevent interception of authentication data in transit.

[0035] In one embodiment, the authentication device 106 includes a secure storage portion comprising a tamper-resistant non-volatile memory chip, wherein the memory chip is configured to store the encrypted user credentials and biometric templates, and wherein the tamper-resistant memory triggers a secure deletion of the stored data when unauthorized access is detected.

[0036] In one embodiment, the authentication device 106 includes a secure clock module, wherein the clock module is used to prevent replay attacks by ensuring that the authentication request includes a time-stamped message, and wherein the time-stamped message is encrypted with the quantum-safe cryptographic module before transmission to the CPU.

[0037] In one embodiment, the CPU 102 includes an authentication decision unit 106 that processes the encrypted authentication data by decrypting it with the quantum-safe cryptographic module, verifying the authenticity of the received data, and making an access decision based on comparing the decrypted data with stored user records, and wherein the authentication decision unit further applies a policy-driven access control list (ACL) to determine whether the user should be granted access.

[0038] The quantum-safe access control system of the present invention integrates special hardware and software components to provide secure and robust protection against unauthorized access and data leakage in environments at risk from quantum computer attacks. At the heart of the system is the quantum-safe cryptographic module, designed to ensure that all data exchanged during the access control process is encrypted using quantum-safe techniques. One embodiment of this system incorporates lattice-based cryptography, a technique known for its resilience against quantum computing threats posed by techniques such as those of Shor and Grover. The cryptographic module uses a public-key encryption scheme based on lattice structures, allowing it to generate secure cryptographic keys that cannot be easily cracked, even by a quantum computer.In addition to lattice-based encryption, the cryptographic module also includes hash-based signature mechanisms. Hash-based signatures are considered resistant to quantum threats and ensure that digital signatures for authentication requests are securely generated, allowing both users and devices to verify identities without the risk of interception or quantum decryption. This module also supports secure key exchange mechanisms that ensure the secure transfer of cryptographic keys between devices and users, thus protecting the integrity of all access control communications.

[0039] The system also includes an authentication device, which can be a handheld device, a smart card, or a biometric authentication terminal. This device is equipped with quantum-resistant hardware and communicates with the system's central processing unit (CPU). It securely stores authentication data such as encrypted passwords, biometric templates (fingerprints, retinal scans, etc.), or other credentials in a protected memory area, ensuring that confidential data is protected even in the event of an attempted intrusion. The authentication device includes a secure user interface that prompts users to enter their credentials. After receiving user input, the device encrypts the data using the quantum-safe cryptographic module and transmits it to the access control server.The server then compares the encrypted data with its stored records to decide whether to grant or deny access. Furthermore, the authentication device is equipped with multiple layers of protection, such as secure boot procedures, hardware-assisted storage, and integrity checks, to prevent attacks that could compromise its cryptographic operations.

[0040] The quantum-safe access control system also includes a hardware security interface that establishes a secure communication link between the authentication device and the central access control system. This communication interface ensures that the encrypted authentication data is transmitted securely and prevents unauthorized interception or tampering. The system can incorporate advanced encryption protocols such as Quantum Key Distribution (QKD) to protect the transmission of confidential information. The hardware interface also integrates intrusion detection mechanisms to monitor and detect physical tampering attempts, ensuring that the system remains resilient to attacks that could compromise its hardware integrity.

[0041] This quantum-safe access control system offers several key advantages over conventional systems. First, it guarantees that access control remains secure even in the face of threats from quantum computers. By incorporating quantum-safe cryptographic techniques, the system is specifically designed to withstand the types of attacks that could easily break conventional encryption methods. Second, the system offers an integrated solution that combines hardware-based security and quantum-resistant techniques, making them significantly more difficult for attackers to circumvent. Third, the system is scalable, allowing it to be adapted to a wide range of applications, from small enterprise environments to large-scale infrastructure deployments.In addition, the system includes backup authentication methods to ensure that it remains operational and secure even in the event of a malfunction or breach in any of the authentication levels.

[0042] The quantum-safe access control system uses advanced quantum-safe cryptographic techniques to ensure that all authentication processes are protected from the threats posed by quantum computers. The central processing unit (CPU) in this system is responsible for handling and processing authentication requests, securely decrypting authentication data, and making access decisions based on the provided credentials. The heart of the system is the quantum-safe cryptographic module, which plays a central role in encrypting and securely exchanging data using quantum-resistant encryption techniques, particularly lattice-based encryption schemes such as Learning With Errors (LWE), Ring-LWE, and NTRU encryption.These techniques are designed to withstand the potential risks posed by quantum computing techniques such as those of Shor and Grover, which are capable of breaking traditional cryptographic schemes such as RSA and ECC.

[0043] The cryptographic module also includes a quantum-safe key management system that ensures secure key creation and exchange between the authentication device and the CPU, using post-quantum key exchange protocols such as New Hope, Kyber, or NTS-KEM. These protocols enable the system to securely generate cryptographic keys and ensure that all authentication data exchanged between devices remains protected from quantum-based attacks. The key management system also supports digital signatures that authenticate the transmitted data, ensure data integrity, and prevent tampering during the exchange process.

[0044] The authentication device, equipped with a secure, quantum-resistant hardware module, is responsible for securely storing user credentials, including encrypted passwords, biometric data (such as fingerprints, retinal scans, or facial recognition data), and other access control information. The authentication device encrypts this data using the quantum-safe cryptographic module and transmits it to the CPU via a secure communication interface. This interface is designed to utilize secure communication protocols such as Quantum Key Distribution (QKD) and ensures that no authentication data transmitted between the authentication device and the CPU can be intercepted or modified by unauthorized third parties.QKD uses quantum entanglement and measurement-based security to securely distribute encryption keys, providing a level of security far superior to classical encryption methods.

[0045] With multi-factor authentication (MFA), the authenticator can generate a one-time password (OTP) in response to user input, which is then encrypted using the quantum-safe cryptographic module and sent to the CPU for verification. The MFA module strengthens the system's security by adding another layer of authentication, which is critical for situations where the primary authentication method might fail or where additional verification is required for highly secure access. The MFA process ensures that the system remains secure even if an attacker compromises one factor (e.g., a password), as an additional layer of authentication is required.

[0046] The quantum-safe cryptographic techniques employed in the system also support hybrid encryption, which uses asymmetric cryptography (with lattice-based encryption) for key exchange and digital signatures, while symmetric encryption techniques such as AES-256 are used to encrypt data payloads. This hybrid encryption approach combines the strengths of both asymmetric and symmetric encryption, ensuring optimal security and efficiency for both key management and data protection. AES-256 is a strong symmetric key encryption technique and is used to protect the integrity and confidentiality of authentication data while it is transmitted over the secure communication interface.

[0047] In one implementation, the system includes a redundancy mechanism that ensures continuous operation even if one authentication method fails. For example, if biometric authentication is unavailable or mismatched, the system can switch to an alternative method such as multi-factor authentication (MFA) to grant access. The system also supports secure access in distributed environments where multiple authentication devices and central processing units are connected via secure, software-defined communication channels, providing a scalable and flexible solution for large-scale deployments.

[0048] In one implementation, the quantum-safe access control system uses real-time monitoring and intrusion detection systems to continuously track the integrity of authentication data. The system is configured to detect inconsistencies or potential tampering and issue alerts in the event of suspicious activity. These proactive monitoring capabilities enable the system to respond immediately to security threats, ensuring the access control system remains operational and secure at all times.

[0049] The drawings and the foregoing description provide examples of embodiments. Those skilled in the art will recognize that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be separated into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, orders of the processes described herein may be changed and are not limited to the manner described herein. Furthermore, the actions of any flowchart need not be implemented in the order shown; nor do all actions necessarily need to be performed. Also, those actions that are not dependent on other actions may be performed in parallel with the other actions. The scope of the embodiments is in no way limited by these specific examples.Numerous variations, whether explicitly stated in the specification or not, such as differences in structure, dimensions, and use of materials, are possible. The scope of the embodiments is at least as broad as indicated in the following claims.

[0050] Advantages, other benefits, and solutions to problems have been described above with reference to specific embodiments. However, the advantages, benefits, solutions to problems, and any components that may cause an advantage or solution to occur or become more apparent are not to be construed as a critical, required, or essential feature or component of any or all of the claims. REFERENCES 100 A block diagram of a quantum-secure access control system is shown. 102 Central processing unit (CPU) 104 Quantum-Secure Cryptographic Module 104a Lattice-based encryption machine 104b Quantum-secure key management system 106 Authentication device 108 Secure communication interface 110 Hardware security interface

Claims

[1] A quantum-secure access control system consisting of: (a) a central processing unit (CPU) configured to process authentication requests; (b) a quantum-secure cryptographic module coupled to the CPU and comprising a lattice-based encryption engine and a quantum-secure key management system, the cryptographic module configured to encrypt authentication data and generate digital signatures for authentication; (c) an authentication device comprising a secure, quantum-resistant hardware module, the authentication device configured to store user credentials in a protected memory area and to encrypt the credentials using quantum-safe cryptographic techniques before transmitting the encrypted data to the CPU; (d) a secure communications interface configured for the secure transmission of encrypted authentication data between the authentication device and the CPU over a quantum-resistant channel; (e) a hardware security interface integrated into the authentication device, comprising a physical tamper detection system and a secure boot mechanism, the tamper detection system configured to detect physical access attempts and trigger security protocols to prevent unauthorized decryption of the confidential data stored in the device. [2] The system of claim 1, wherein the quantum-secure key management system within the cryptographic module uses a post-quantum key exchange protocol selected from the group consisting of New Hope, Kyber, and NTS-KEM, the protocol ensuring secure key creation between the authenticating device and the CPU without resorting to quantum-vulnerable techniques. [3] The quantum-secure access control system of claim 1, wherein the authentication device further comprises a biometric input module, wherein the biometric input module comprises a fingerprint scanner, a retinal scan sensor, or a facial recognition camera, and wherein the biometric data is captured, encrypted by the quantum-secure cryptographic module, and transmitted to the CPU for verification. [4] The system of claim 1, wherein the authentication device further comprises a multi-factor authentication (MFA) module, the MFA module generating a one-time password (OTP) in response to a user input and encrypting the OTP using the quantum-safe cryptographic module before transmitting it to the CPU for verification. [5] The system of claim 1, wherein the secure communication interface uses Quantum Key Distribution (QKD) protocols to securely exchange encryption keys between the authentication device and the CPU, the QKD protocol using quantum entanglement and measurement-based security to prevent interception of authentication data in transit. [6] The system of claim 1, wherein the authentication device comprises a secure clock module, wherein the clock module is used to prevent replay attacks by ensuring that the authentication request includes a time-stamped message, and wherein the time-stamped message is encrypted with the quantum-safe cryptographic module before transmission to the CPU.

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