671 results about "Tamper resistance" patented technology

The invention discloses a power grid material sampling inspection management method for realizing whole-course tracing based on intelligent sample sealing, and relates to the technical field of electric power material management and intelligent perception, and the method comprises the following steps: S1, an initialization stage: executing a sample sealing coding segmentation pre-configuration process, distributing independent numbered segments to each sample sealing terminal, and the central control module synchronizes the use state of the terminal code to realize distributed isolation of code generation. According to the invention, coding uniqueness is realized through segmented pre-configuration and global duplicate checking, identity information security is guaranteed by adopting chip one-time write protection and tamper-proof technologies, and sample packet switching and data counterfeiting are effectively prevented by combining automatic acquisition and multi-round consistency comparison. Abnormal recognition and closed-loop processing ensure that abnormal events are frozen in time and responsibility is traced, and irregular samples are prevented from flowing into subsequent links. The whole-process auditing and dynamic optimization enable the management process to be self-perfected, and the intelligence, standardization and reliability of sampling inspection of the power grid materials are remarkably improved.

The invention discloses an informatization system dynamic verification method based on a zero-trust architecture, and the method comprises the steps: collecting and standardizing user operation requests of all business systems, and achieving unified resource and organization identification; a distributed encryption operation log link is constructed through an end-to-end encryption protocol, and safe synchronization and tampering prevention of an operation behavior abstract are guaranteed; extracting a multi-dimensional right decision variable, inputting the multi-dimensional right decision variable into an adaptive artificial intelligence decision model, dynamically generating a reversible permission factor set, and supporting fine-grained and rollback permission authorization and real-time automatic revocation; the log chain is encrypted and recorded in the whole process, intelligent abnormity monitoring and end-to-end traceability are combined, the consistency and compliance auditing of the global permission state are supported, and the security, traceability and intelligent self-adaptive treatment capacity of sensitive operation in the multi-organization cooperation environment are effectively improved.

The invention relates to the technical field of data acquisition and information security, and discloses a block chain tamper-proof data acquisition method and device, and the device comprises a control chip, an identity recognition module, a local tamper-proof module, a time sequence processing module (including a parallel uploading unit), a clock calibration module, a storage monitoring module and the like. The method comprises the steps of hardware-level identity verification, operator verification, generation of a data packet containing metadata, encryption and tamper prevention, networking / offline uplink evidence storage, association uplink approval and hash comparison verification. By applying the method and the system, the tamper-proofing of the data in the whole process can be realized, the offline scene is adapted, and the high-credibility data acquisition requirement is met.

The invention discloses a block chain technology-based review data information security tamper-proofing method, and relates to the technical field of information security, the tamper-proofing method comprises the following steps: a data encryption storage step, a data evidence storage step, a trusted computing step and a data verification step, when a computing request is received, the trusted computing step is executed, and the trusted computing step is executed; whether the identity of a requester conforms to the access control strategy is verified through the smart contract, after verification is passed, the smart contract generates a calculation task event, the oracle monitors and captures the event, then a calculation task is transmitted to the trusted execution environment, ciphertext data is obtained in the trusted execution environment and decrypted, and the calculation task is sent to the target server. The method has the advantages that the balance of data privacy protection and integrity verification is realized through a hierarchical architecture combining on-chain evidence storage and off-chain encrypted storage, sensitive review data is stored in an off-chain database in an encrypted form, the security of the review data is improved, the security of the review data is improved, and the security of the review data is improved. Only data fingerprints are recorded on the block chain, data privacy is protected, and data integrity can be verified through the block chain.

The invention discloses a firmware-level security protection system and method for a hard disk of industrial automation equipment, particularly relates to the technical field of storage security protection, and is used for solving the problem of abnormal tampering of firmware. According to the method, instruction calling, interface access and interrupt timestamps are collected in a sliding window, a behavior sequence set containing an instruction sequence, calling frequency and sensitive marks is constructed and compared with a reference sequence library, firmware-level judgment on operation abnormity, access border crossing and tampering risks is triggered based on a transfer relation and an offset index, and the operation safety is improved. The method comprises the following steps of: dividing firmware into a control domain, a data domain and a configuration domain, realizing minimum permission and dynamic isolation by relying on state and permission mapping and permission register and interface shielding, forming a flow from detection to isolation to closed loop recovery by combining protected segment integrity verification and local copy hot switching, writing an exception into a protected loop log area for threshold updating, and performing protection on the protected loop log area. And the tamper-proof performance, the operation safety and the maintainability of the firmware are integrally improved.

The invention discloses a traceability application-oriented block chain database data management system, particularly relates to the technical field of block chain database data management, and is used for solving the problems of easy data tampering and low verification efficiency caused by traceability data logic association and physical storage splitting. The method comprises the following steps: firstly, matching a parent physical sector offset through an association analysis module, determining a storage partition, and assembling a write-in instruction; then, a topology binding module executes a disk write operation, synchronously reads parent node hash and performs combinatorial operation in combination with a physical address to generate a topology binding check value bound with the physical position; the aggregation anchoring module uses a Merkel tree aggregation check value to generate a root fingerprint and perform uplink, and establishes an anchoring voucher; and finally, a path verification module positions a physical position according to the certificate, executes reverse recursive addressing and step-by-step Hash recalculation, and assembles a pedigree verification packet, so that a closed-loop trust system from physical storage to chain certificate storage is constructed, and the tamper-proof capability and verification efficiency of the traceability data are improved.

The present invention provides an autonomous computing system for cryptographic asset tokenization, digital currency operations, redemption, detokenization, and full lifecycle management of tokenized assets. The system leverages formal cryptographic proofs, hybrid off-chain and on-chain ledger synchronization, and automated execution protocols to enhance regulatory compliance, asset-backed stability, and operational autonomy. Smart contracts, cryptographic hash-based commitments, and distributed validation mechanisms ensure secure, verifiable, and tamper-resistant transactions across decentralized, centralized, and hybrid environments. The system governs the entire token lifecycle by intrinsically linking asset state validation to both on-chain and off-chain records. Hardware-agnostic cryptographic processing enforces governance rules, validates asset-backed token states, and prevents over-issuance. Real-time integrity checks and automated reconciliation deliver a scalable, cryptographically secured framework for autonomous management of tokenized assets and digital currency transactions, minimizing reliance on intermediaries.

The invention discloses an AI model security protection system and method based on a domestic cryptographic algorithm and a digital certificate. The system comprises a certificate management center CA, an AI model security gateway, a training terminal and a deployment server, wherein the certificate management center CA is a certificate management system of a third-party trusted certificate management center CA mechanism; the AI model security gateway is used for security access and compliance verification of training data; the training terminal is used for security initialization of the model development terminal and generation of a security model package, and is terminal equipment used by a developer for model training; and the deployment server is used for security management and control of the model operation end. The method comprises the following steps: firstly, carrying out data encryption and model certificate binding; identity authentication and transmission encryption are carried out; then, integrity verification and tampering prevention are carried out; and finally, version traceability and legality verification are carried out. According to the method, the security of the AI model and the model transmission and verification efficiency are improved, the whole-process traceability of the model is realized, the compatibility is high, and the method is easy to popularize.

A secure digital management tool for managing real estate ownership and leases, consisting of: a tamper-proof enclosure containing a secure processing module; a biometric authentication module comprising a fingerprint sensor and an iris scanner, which are operationally coupled with a secure biometric engine to verify a user's physical identity; a document integrity module configured to generate a cryptographic hash of a digital document representing a certificate of ownership or a lease agreement; a smart contract engine configured to compile and execute the logic for legal transactions related to ownership in a Turing-complete virtual machine environment, the logic defining obligations, rights, payment schedules or renewal triggers encoded in the lease or ownership contract; a blockchain interface processing unit operationally connected to the document integrity module and the smart contract engine, wherein the blockchain interface processing unit is configured to anchor cryptographic hashes of the documents and the execution status of smart contracts in a decentralized ledger network; a secure element embedded in the secure processing module and configured to store cryptographic private keys and perform isolated signature and encryption operations without exposing confidential key material to general storage space; a communication subsystem that includes at least one of the following elements: a GSM / 4G module, a Wi-Fi 6 module and a GPS receiver, configured for secure network connectivity and geolocation binding of transactions; a touchscreen interface configured for displaying transaction forms, digital agreements, and interactive contract signing interfaces, the interface also including pen input for capturing digital handwritten signatures; and a secure audit trail subsystem configured to maintain a chronologically ordered, append-only log of all biometric access events, document hash generations, blockchain anchoring events, and smart contract lifecycle transitions, with the audit trail regularly hashed and anchored for forensic integrity in a decentralized blockchain network.

The invention relates to the technical field of information security, discloses a realization method of an electronic signature of a customs business scene and a seal management system, and aims to solve the problems of trust centralization, easy data tampering, difficult traceability, poor business adaptation and insufficient interoperability of an existing electronic signature. According to the method and the system, a distributed account book technology is introduced, decentralized creation and registration, signature generation and verification, life cycle management and on-chain recording of auditing and tracing of the electronic seal are realized, a dynamic and configurable business scene strategy engine is constructed, a customs business process is flexibly adapted, and high safety, high efficiency and high adaptability are ensured. According to the method, a decentralized trust basis is established, the tamper-proofing capability and efficiency are improved, full-chain auditing traceability and cross-mechanism interoperation are realized, and data security is guaranteed.

A tamper-indicating and child resistant cap and container assembly, comprising a cap comprising: a cap top wall; a cap skirt having an inner wall which is at least partially threaded, and an outer wall having at least one squeezing location; at least one tamper-indicating band frangibly connected to a free end of the cap and having defined therethrough an opening; at least one tongue extending from the free end of the cap skirt which circumferentially spaced from the at least one squeezing location. The container has an open end and a neck, an outer wall of the neck being at least partially threaded and configured to cooperate with the at least partially threaded inner wall of the cap; and at least one protrusion extending from the outer wall of the container neck and configured to be received in the opening of the at least one tamper-indicating band.

A computer-implemented system for routing artificial intelligence (AI) queries. The system utilizes a zero-copy data pipeline, which processes prompts in memory-mapped buffers to eliminate at least one memory copy operation, thereby reducing latency relative to conventional serialization pipelines. The system continuously verifies AI provider compliance by injecting synthetic prompts containing invisible, Ed25519-signed Unicode watermarks. Algorithmic bias is detected by generating counterfactual “digital twin” prompts and applying Fisher exact statistical testing.Routing decisions for multi-tier autonomous systems are governed by safety-level requirements (ASIL-D, ASIL-B, QM) and may be constrained by external routing directives received via a meta-identifier. A hash-chained manifest, cryptographically signed using Ed25519 and consumed by downstream gateways, is generated for each routing decision, with its Merkle root asynchronously anchored to a blockchain to create a tamper-evident audit trail for regulatory compliance.

The invention discloses a distributed data use control method and system based on a DID and a verifiable credential, a storage medium and an electronic device, and the method comprises the steps: carrying out the identity verification of a data user based on a DID, carrying out the authentication of the identity through a verifiable credential issued by an authority, and carrying out the verification of the identity through the verifiable credential; the privacy information range is controlled by adopting a selective disclosure mechanism; generating data authorization information based on the verifiable certificate, establishing an encrypted point-to-point data transmission channel in combination with the DID identifiers of the authorizer and the authorized person, and executing encrypted transmission and encrypted storage of data; and verifying the identity of a data user based on a DID signature mechanism, carrying out tamper-proof verification on a use strategy in the authorization certificate, and carrying out compliance judgment on an authorization range, strategy content and a decryption condition. According to the method provided by the invention, identity credibility right confirmation in a distributed environment is realized, the security and compliance of data exchange are improved, and security autonomy and verifiable control in a data use stage are realized.

The present invention realizes a remote signature system in which identity verification is performed for each signing request by combining the remote signature system with public key cryptography. A terminal device (2) comprises a means for generating a key pair for authentication to perform the public key cryptography. A generated secret key is stored in the terminal device (2), and a generated public key is transmitted to the tamper resistant device (5) and is stored in relation with the corresponding signature key. The tamper resistant device comprises a signature key storage means (12) for storing the signature key, a decryption key and signature key identification information as pairs for each user. When requesting a digital signing, a signing request including the signature key identification information, plaintext verification information, and a crypto token including the encrypted verification information and the encrypted signature object data is created and is transmitted to the tamper resistant device (5). The tamper resistant device accesses to the signature key storage means (12) and searches both the decryption key and the signature key. The tamper resistant device decrypts the crypto token using the searched decryption key, and verifies consistency between the decrypted verification information and the plaintext verification information. If they do not match each other, the signing request is excluded from the digital signing.

The invention provides a safety starting method, device and equipment and a readable storage medium, and the method comprises the steps: responding to a request for starting chip firmware, and building communication connection with a safety chip through inter-core communication; obtaining a trusted key root from the security component according to the security chip, and performing mutual challenge authentication with the security chip; according to a mutual challenge authentication with the security chip, a mutual legal authentication result is obtained, and the security chip is requested to start security signature verification; and starting the chip firmware according to a result fed back by the security chip that the signature verification is legal through security starting of the security component. Through the technical scheme of the specification, the isolation security component forms a hardware-level protection island, the risk of physical detection or bypass attack is eradicated, the security chip agents all operations to ensure that the root key cannot be directly accessed by the main MCU, the two-way challenge authentication is combined with the dynamic session key to realize tamper-proofing of inter-core communication, and on the premise of completely eradicating the tamper-proofing process from being hijacked, the security of the main MCU is improved. And the starting reliability and timeliness of the chip are ensured.

A node-edge symbolic consent kernel (NESCK) provides a computing architecture in which every instruction is gated by a verifiable human-intent signal and an ethical-predicate chain prior to execution. The system integrates a biometric-sensing front-end (EEG / GSR / facial micro-affect), a symbolic arbitration engine that transforms bio-intent data into consent tokens, and a cryptographically bonded node-edge ledger that records execution lineage, revocation, and audit proofs. Each node represents an executable state bound to a human consent fingerprint, while each edge encodes the ethical transition rules authorizing propagation through the network. At runtime, the kernel evaluates symbolic predicates, verifies zero-knowledge proofs of consent, and allows or halts instruction dispatch. The framework operates across devices, edge nodes, and cloud layers, enabling real-time lawful AI behavior, revocable autonomy, and tamper-proof moral audit trails. Embodiments span neuroadaptive wearables, autonomous vehicles, robotics controllers, and sovereign AI systems requiring continuous consent and transparent accountability.

The invention relates to the technical field of block chain smart contracts, and provides a smart contract automatic execution system and method based on a block chain technology. In order to solve the problems that in the prior art, out-of-chain event verification is fragile, cross-contract atomicity is lacked, and resource management and control are insufficient, the system comprises a multi-mode under-chain event verification module, and a tamper-proof data channel is established through an Internet of Things hardware anchor point and an anti-collusion oracle; the autonomous execution engine is integrated with a resource awareness scheduler and an out-of-chain computing adapter; the transaction atomicity guarantee module is used for realizing cross-contract rollback by adopting a global snapshot tree and an intelligent compensation contract; the governance arbitration interface supports anonymous dispute resolution. The method comprises the steps of out-of-chain event multi-level verification, voucher execution queue management and sandbox resource isolation control. Credible collaboration inside and outside the chain is realized, the execution reliability is improved by more than 90%, and the contract development cost is reduced by 40%.

The invention discloses a dynamic risk management and control method and system for an operation process and field interaction equipment, and relates to the technical field of industrial internet, machine vision and intrinsic safety control. The invention aims to solve the technical problems that the physical state and the digital approval in the existing job management are disjointed, the existing job management is easily attacked by multimedia data fraud (such as screen copying and historical photo forgery), and the control instruction is lagged in a dynamic environment. The method comprises the following steps: a system and a field controller establish bidirectional heartbeat monitoring based on a hardware watchdog, and equipment is set in a physical locking state by default; responding to the operation request, and acquiring multimedia evidence containing a bottom hardware level tamper-proof space-time fingerprint by utilizing a hardware security unit (SE) of the field interaction equipment; the authenticity and the space-time legality of hardware fingerprints are verified at first, and then moire detection, reflection analysis and semantic comparison are conducted through an AI algorithm; and only when the anti-counterfeiting and the content verification are both passed, generating an encryption driving signal to unlock. During operation, a state competition processing mechanism is introduced, if the environment is suddenly changed, the system preferentially suspends the authority through high-priority hardware interruption, and fault-oriented security (Fail-Safe) is achieved. According to the invention, through deep fusion of software and hardware, active defense and millisecond-level dynamic fusing of operation risks are realized.

The invention relates to a charging control method and device, a vehicle, a charging pile and a charging system. The method comprises the steps that under the condition that a first message sent by a charging pile is received, if first verification information in the first message passes verification, a second message is sent to the charging pile, and the second message comprises second verification information, a vehicle identification code and current offset; executing a charging handshake process with the charging pile; and under the condition that the charging handshake process is completed, the current offset in the second message is utilized to adjust the charging current value requested by the vehicle. Therefore, on the premise of ensuring that the current offsets at the two ends are matched, the hardware potential of the vehicle and the charging pile can be fully utilized, the inherent current limitation is broken through through the current offsets, the charging current value is increased, the charging time of the electric vehicle is shortened, the charging safety is synchronously guaranteed, the rapid charging requirement of a user is met, wrong charging pile access is prevented, and the charging efficiency is improved. Charging safety is guaranteed, and tampering and counterfeiting are prevented.

The invention provides a trusted distributed data management system based on a block chain, which relates to the field of electric digital data processing and comprises a data sovereignty module, a trusted storage module, a privacy calculation module and a value circulation module. The data sovereignty module is used for determining data ownership and realizing on-chain right confirmation, the trusted storage module is used for ensuring integrity, availability and tamper-proof capability of data, and the privacy calculation module is used for supporting completion of calculation and verification on the premise of not exposing original data. The value circulation module is used for realizing economization and governance of data assets; according to the system, a trusted data management infrastructure with data sovereignty protection, privacy security and value circulation capabilities is constructed through deep fusion of a cryptographic technology, an intelligent contract and a distributed architecture.

The invention discloses an access control authentication method based on multi-modal dynamic challenge and block chain auditing, and belongs to the technical field of access control authentication, and the access control authentication method comprises the following steps: collecting video, sound and motion data of a user, and carrying out dynamic living body detection; after detection is passed, face features, voiceprint features and gait features are extracted and subjected to fusion scoring, and after the score exceeds a threshold value, equipment trust chain verification is carried out according to a dynamic token generated after secret key exchange between the APP and the access control terminal; after the verification is passed, firstly performing deep counterfeiting detection on the whole face, and then performing deep counterfeiting detection on the details of the face; and finally, the authentication passing information is stored in the block chain, TxID verification is carried out when a receipt of certificate storage transaction success returned by the block chain is received, and the door is authorized to be opened after the verification is successful. According to the invention, forgery attacks can be effectively resisted, the false identification rate and the missed identification rate of the access control system are reduced, the auditing tracking and tamper-proof capabilities are greatly enhanced, and the identity authentication reliability in a high-security scene is guaranteed.

Method (100) for operating a field device (1) comprising an adjustable clock (2), at least one non-volatile CA memory (3) containing a public key certificate (3a) of a trusted certification authority, CA, at least one non-volatile time memory (4) for recording a date and / or time (4a) and at least one interface (5), comprising the steps: • A current date and / or time (7a) is received via the interface (5) (170); • this current date or time (7a) is compared with the date or time (4a) in the time memory (4) (180); and • In response to the fact that the current date or time (7a) is later (190) than the date or time (4a) in the time memory (4), the adjustable clock (2) of the field device (1) is set to the current date or time (7a) (200).

The embodiment of the invention discloses an abnormal bidding behavior recognition method and device, electronic equipment and a storage medium, and relates to the technical field of computers, and the method comprises the steps: determining a bidding enterprise of a target bidding project; calculating historical bidding anomalies of the bidding enterprise, wherein the historical bidding anomalies comprise a huddling risk parameter value, an accompanying bidding risk parameter value and a bidding behavior mutation parameter value; calculating bidding document tamper-resistant similarity of the bidding enterprises; and determining an abnormal bidding behavior identification result of the bidding enterprise according to the historical bidding abnormality and the bidding document tamper-resistant similarity. According to the technical scheme provided by the embodiment of the invention, the problems of low manual auditing efficiency, poor identification accuracy and insufficient multi-dimensional analysis in the prior art can be solved.

A tamper-evident bag assembly that can be sealed to enclose contents within the bag assembly in a tamper-evident manner. The bag assembly is provided with closure tabs that can be folded over the top edges of the bag assembly and sealed to a side panel of the bag. Strategic portions of the bag assembly can be scored to indicate tampering if unsealing of the adhesive takes place. The bag assembly is also provided with a pull tab designed facilitate opening of the sealed bag assembly to reveal the contents contained therein. When the pull tab is used to open the sealed bag, the bag cannot be re-sealed.

The invention discloses an electronic scale real-time tamper-proofing method and system based on cloud monitoring and data networking, and relates to the technical field of electronic scale tamper-proofing, and the method comprises the steps: carrying out the real-time collection and networking synchronization of multi-source data, collecting commodity and operation data through a multispectral camera, and achieving the dynamic networking of more than or equal to three electronic scales within 10 meters through a LoRa module; multi-scale cooperative verification and abnormity determination are carried out; generating a holographic evidence packet, encrypting fragments, and separately storing a weight curve, an action video and a spectrum report in a private chain, an alliance chain and a judicial chain; real-time tamper-proof response is carried out, an abnormal scale is locked, and hardware self-destruction is triggered; the system comprises a terminal layer multispectral sensing unit, a cooperative verification unit, a tamper-proof unit, an edge layer dynamic weight engine, a cloud layer holographic block chain and an anti-coercion interface, solves the problems that distributed cheating is difficult to identify, and an evidence collection chain is incomplete, improves the safety of distributed cheating identification, and improves the safety of distributed cheating identification. Real-time tampering prevention and credible evidence storage of the electronic scale are realized.

The invention relates to the technical field of electronic contract signing, in particular to an electronic contract signing method and system for video recording willingness authentication, and the method comprises the steps: associating a contract with signing party information through generating a unique task identifier, automatically triggering video recording in a signing link, and completing identity verification in advance; then multi-dimensional information including biological characteristics, willingness statement audio and a signing operation process is synchronously collected in the continuous recording process, finally, characteristic values of a recorded file and a contract file are calculated respectively, and the characteristic values, digital signatures and task identifiers are fused and stored in a tamper-proof mode. The real-time and strong association binding of the video evidence and the electronic contract on the data level is realized, the traceability, tampering prevention, completeness and credibility of the whole signing process are ensured, and the technical problems that in the prior art, the audio-visual evidence and the electronic contract are mutually independent, loose in association and easy to tamper, and a complete evidence chain with judicial proving power is difficult to form are effectively solved.

The invention discloses an archive credible access and tamper-proof management system and method based on a block chain, and belongs to the technical field of information security and data evidence storage, and the method mainly comprises the steps: during evidence storage, a business server calculates an archive hash value and encrypts a file, the encrypted file is stored in an IPFS to obtain a CID, and the CID is stored in a database; key information such as the hash value and the CID is stored in the block chain through the smart contract; during verification, querying an original hash value from the block chain, acquiring a file from the IPFS, decrypting and calculating a current hash value, and comparing whether the two hash values are consistent or not; according to the method, absolute credibility of file metadata and operation logs is ensured by utilizing the non-tampering characteristic of the block chain, safe and low-cost storage of file files is realized by utilizing the IPFS, the problems of single-point failure, easiness in tampering, low audit log credibility and high large-scale storage cost of a centralized file management system are effectively solved, and the method is suitable for popularization and application. And credible management of the whole life cycle of the electronic archives is realized.

The invention discloses a protocol message tamper-proofing method and system based on symmetric encryption and a medium, and relates to the technical field of industrial automation Ethernet time synchronization. According to the method, mirror image monitoring is carried out on the message receiving and sending process in the protocol processing process of time synchronization equipment, a protocol message is obtained and analyzed, and the protocol message tamper-proofing effect is achieved; a message abstract and encrypted verification data thereof are generated at a sending end, and a corresponding abstract is obtained through decryption at a receiving end; consistency comparison is carried out on the sending side abstract and the receiving side abstract based on the time window, and a tamper-proof consistency coefficient is calculated to judge the integrity of the protocol message; on the basis that the integrity is qualified, performing difference analysis on an encryption verification result, and calculating an encryption credibility coefficient to evaluate the credibility state of the symmetric encryption link; and further performing coupling calculation to obtain a time synchronization security coupling coefficient, comprehensively evaluating the influence of tamper-proofing and symmetric encryption on the time synchronization operation security, and implementing a security regulation and control strategy according to the influence, thereby improving the security and stability of the time synchronization system.

An audio authentication and identity verification system and method that encodes dynamic cryptographic information across the audible and inaudible spectrum (0 Hz→30 kHz, scalable to 124 kHz). A rolling acoustic signature simultaneously embeds identity, time, date, and GPS location using a hybrid of frequency shift keying (FSK), phase shift keying (PSK), Morse style pulse duration modulation, and time domain multiplexing. To guarantee post-event privacy and integrity, the system further incorporates a dual custody audio architecture in which every authenticated recording is split into complementary bit interleaved segments stored separately, and the decryption key is fragmented via Shamir 3-of-5 secret sharing—preventing unilateral access or tampering. The system establishes a tamper proof, real time, and offline capable authentication layer that functions in air, through conventional microphones, and via dedicated emitter hardware.