{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853974","patent":{"patent_number":"US-9853974","title":"Implementing access control by system-on-chip","assignee":null,"inventors":[],"filing_date":"2015-07-28T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H04L","G06F","G06F","G06F","H04L","H04L","H04L","H04L","G06F","G06F","G06F","G06F"],"num_claims":36,"abstract":"Systems and methods for implementing access control by systems-on-chip (SoCs). An example SoC may comprise an access control unit employed to: receive a message comprising an access control data item; validate the message using a value of a message digest function of contents of the message and a value of a state variable reflecting a state of communications between the access control unit and a programming agent that has initiated the message, wherein the value of the state variable is derived from a previous value of the message digest function calculated within a current communication session between the access control unit and the programming agent; update the state variable using the value of the message digest function of the contents of the message; and control, using the access control data item, access by an initiator device to a target device."},"analysis":{"summary":"The Implementing Access Control by System-on-chip patent describes a system and method for enhancing security in embedded systems through a novel access control mechanism. The core innovation lies in validating messages using a message digest function and a state variable, which ensures that only authorized communications are permitted, thereby preventing unauthorized access and malicious attacks. This approach solves the problem of inadequate security in traditional access control methods, which are often vulnerable to replay attacks and unauthorized access. The key technical approach involves implementing an access control unit on a system-on-chip (SoC) that receives messages, validates them using the message digest function and state variable, updates the state variable, and controls access by an initiator device to a target device.\n\nThe business value and applications of this technology are significant. It can be applied in various industries, including IoT devices, critical infrastructure, and embedded systems, where security is paramount. The use of Implementing Access Control by System-on-chip can reduce the risk of cyberattacks, protect sensitive data, and improve overall system performance. The market opportunity for this technology is substantial, driven by the increasing demand for secure access control solutions in a connected world. As the number of connected devices continues to grow, the need for robust and efficient access control mechanisms will become even more critical. This technology has the potential to become a standard component in various systems, providing a robust and efficient means of protecting sensitive data and resources.","layman_explanation":"Implementing Access Control by System-on-chip is a technology designed to enhance the security of electronic systems by controlling who can access them and what they can do. It's like having a sophisticated security system for your computer or other electronic devices.\n\n**1. What Problem Does This Solve?**\n\nIn today's digital world, electronic systems are constantly under threat from hackers and other malicious actors. Traditional security measures, like passwords, are often not enough to protect against these threats. Implementing Access Control by System-on-chip solves this problem by providing a more robust and secure way to control access to electronic systems. Existing solutions often lack the ability to verify the integrity of communications, making them vulnerable to attacks like replay attacks, where attackers capture and retransmit messages to gain unauthorized access.\n\n**2. How Does It Work?**\n\nThis technology works by using a combination of hardware and software to validate messages and control access to target devices. Think of it like a secret handshake between two people. Before one person can access something from the other, they have to perform the secret handshake correctly. In this case, the \"handshake\" involves using a message digest function and a state variable to verify the integrity and authenticity of the message. The message digest function creates a unique \"fingerprint\" of the message, while the state variable keeps track of the current state of the communication. This ensures that only authorized messages are accepted, and that no one can tamper with the messages or replay them to gain unauthorized access. It's like having a digital bouncer that checks every message to make sure it's legitimate.\n\n**3. Why Does This Matter?**\n\nThis technology matters because it can significantly improve the security of electronic systems. It can protect against a wide range of cyberattacks, including unauthorized access, data theft, and system corruption. The market impact is substantial, as it can be applied to various industries, including IoT devices, critical infrastructure, and embedded systems. The competitive advantages include its ability to validate messages, prevent replay attacks, and adapt to various system architectures. The potential ROI is high, as it can reduce the risk of costly cyberattacks and data breaches. For example, consider the potential cost savings from preventing a single successful cyberattack on a critical infrastructure system.\n\n**4. What's Next?**\nThe future applications of this technology are vast. It can be used to secure everything from smartphones and laptops to industrial control systems and autonomous vehicles. The market adoption timeline is expected to be rapid, as the demand for secure electronic systems continues to grow. The investment implications are significant, as this technology has the potential to generate substantial returns for investors.","technical_analysis":"The Implementing Access Control by System-on-chip patent details a sophisticated system designed to enhance security in embedded systems. The technical architecture revolves around an access control unit integrated into a system-on-chip (SoC). This unit is responsible for validating incoming messages and controlling access to target devices based on the validation results. The core of the validation process involves two key components: a message digest function and a state variable.\n\nThe message digest function is used to generate a unique hash of the message content. This hash is then compared with the current value of the state variable. The state variable reflects the state of communications between the access control unit and the programming agent. The implementation details involve selecting a robust message digest algorithm, such as SHA-256 or SHA-3, to ensure that collisions are minimized. The state variable must be securely stored and protected from unauthorized access to prevent tampering.\n\nThe algorithm specifics involve the following steps: receiving a message, calculating the message digest of the message content, comparing the calculated digest with the current state variable, updating the state variable with the new digest value if the message is valid, and controlling access based on the access control data item in the message. The integration patterns involve seamlessly integrating the access control unit into the existing SoC architecture. This requires careful consideration of the hardware and software interfaces to ensure proper communication and coordination.\n\nThe performance characteristics of the system are influenced by the choice of the message digest algorithm and the speed of the SoC. Faster processors and more efficient algorithms can improve the overall performance of the system. Code-level implications involve writing secure and efficient code for the access control unit. This includes using secure coding practices to prevent vulnerabilities such as buffer overflows and injection attacks. The system is designed to provide a high level of security while minimizing the impact on performance.","business_analysis":"The Implementing Access Control by System-on-chip patent presents a significant business opportunity in the rapidly growing market for embedded security solutions. The market opportunity size is substantial, driven by the increasing demand for secure access control in various industries, including IoT, automotive, industrial control systems, and critical infrastructure. The competitive advantages of this technology include its ability to validate messages using a message digest function and a state variable, which provides a more robust and secure access control mechanism compared to traditional methods.\n\nThe revenue potential for this technology is significant. It can be monetized through licensing agreements, product sales, and service offerings. The business models include selling the technology as a standalone product, integrating it into existing products, and offering it as a managed security service. The strategic positioning of this technology is strong. It addresses a critical need for secure access control in a connected world. It can be positioned as a premium security solution that provides a high level of protection against cyberattacks.\n\nThe ROI projections for this technology are attractive. The initial investment in research and development can be recouped through licensing fees and product sales. The long-term ROI is expected to be high, driven by the increasing demand for secure access control solutions. The technology is expected to generate a steady stream of revenue over its lifetime.","faqs":null,"topics":["system-on-chip security","access control","SoC","message digest function","state variable"],"tech_cluster":null},"seo":{"title":"Implementing Access Control by System-on-chip - Patent US-9853974","description":"Discover how Implementing Access Control by System-on-chip enhances system security by validating messages using message digest functions and state variables. Full patent analysis, claims, and technical details.","keywords":["system-on-chip security","access control","SoC","message digest function","state variable","cybersecurity","IoT security","patent","patent US-9853974"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853974","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9853974","citation_suggestion":"Patentable. \"Implementing access control by system-on-chip\" (US-9853974). https://patentable.app/patents/US-9853974","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853974","json":"https://patentable.app/api/llm-context/US-9853974","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T10:36:40.539Z"}