With the deep penetration and iteration of network technology, the realization of secure and controlled information query is related to the confidentiality, integrity and availability of data resources. In this paper, a quantum information query scheme based on quantum teleportation is proposed by combining quantum teleportation and information query. In this scheme, the user transmits the query information while performing two-way authentication with the access controller to verify the legitimacy of the user, and then the information is sent to the data processing center using quantum teleportation and the correctness of the signature is verified, and then the system performs the retrieval operation. The scheme is characterized as follows: synchronization of authentication and encryption is achieved by integrating the authentication bits and encrypted information bits into the same quantum sequence by using bi-directional authentication in non-orthogonal states and bit-folding techniques; By implementing localized unitary operations on the shared EPR entangled states, the verification information is encoded in the quantum correlation properties between particles, forming a novel communication architecture for transmitting information through particles invisibly; The security analysis shows that the scheme is non-forgeable, non-repudiation and traceable, as well as resistant to intercept-retransmit attacks and Denial-Of-Service (DOS) attacks.
With the deep penetration and iteration of network technology, the realization of secure and controlled information query is related to the confidentiality, integrity and availability of data resources. In this paper, a quantum information query scheme based on quantum teleportation is proposed by combining quantum teleportation and information query. In this scheme, the user transmits the query information while performing two-way authentication with the access controller to verify the legitimacy of the user, and then the information is sent to the data processing center using quantum teleportation and the correctness of the signature is verified, and then the system performs the retrieval operation. The scheme is characterized as follows: synchronization of authentication and encryption is achieved by integrating the authentication bits and encrypted information bits into the same quantum sequence by using bi-directional authentication in non-orthogonal states and bit-folding techniques; By implementing localized unitary operations on the shared EPR entangled states, the verification information is encoded in the quantum correlation properties between particles, forming a novel communication architecture for transmitting information through particles invisibly; The security analysis shows that the scheme is non-forgeable, non-repudiation and traceable, as well as resistant to intercept-retransmit attacks and Denial-Of-Service (DOS) attacks.
Abstract In response to information security issues present in quantum information query scenarios, this paper proposes a quantum information query scheme based on quantum digital signatures. This scheme addresses the security vulnerabilities of existing quantum queries lacking strong authentication, trusted behavior binding, and unified access controllers. Using key-controlled single particle rotation operations, the user identity is jointly encoded with the query information into a quantum state constitutive signature and sent to the access controller, constructing a physically inseparable signature binding. The access controller uses hash verification to verify the legitimacy of the identity before forwarding the signature state. The verifier restores the query information parameters through reverse rotation and Bell measurements and completes the final verification, ensuring that the query behavior is demonstrable, non-falsifiable, and irrefutable throughout the process. The scheme requires only local single-particle operations throughout the process, while significantly reducing the complexity of implementation. It integrates privacy protection, identity authentication, and signature security into an organic whole, forming a trusted security closed loop of quantum information queries supported by a trusted access controller at the core.
Based on the teleportation by quantum walk, a quantum secret sharing scheme with credible authentication is proposed.Using the Hash function and quantum local operation, combined with the two-step quantum walks circuit on the line, the identity authentication and the teleportation of the secret information in distribution phase are realized.Participants collaborate honestly to recover secret information based on particle measurement results, preventing untrusted agents and external attacks from obtaining useful information.Due to the application of quantum walk, the sender does not need to prepare the necessary entangled state in advance, simply encodes the information to be sent in the coin state, and applies the conditional shift operator between the coin space and the position space to produce the entangled state necessary for quantum teleportation.Security analysis shows that the protocol can effectively resist intercept/resend attacks, entanglement attacks, participant attacks, and impersonation attacks.In addition, the quantum walk circuit used has been implemented in many different physical systems and experiments, so this quantum secret sharing scheme may be achievable in the future.
With the advancement of quantum cryptography, proxy blind signature technology combines the message concealment of blind signatures with the delegation of authority inherent in proxy signatures, thereby simultaneously ensuring message privacy and the controlled delegation of signing authority, and playing a critical role in numerous fields. This paper proposes a quantum proxy blind signature protocol based on quantum teleportation. This protocol has the following features: First, by simplifying the keys and the encryption process and using a pseudorandom number generator and quantum state permutations to perform encryption, we avoid complex unitary transformations, thereby significantly lowering the technical barrier. Second, by employing high-capacity quantum encoding — where a two-particle quantum state encodes three classical bits — the information capacity of a single communication session is significantly increased. Finally, we propose the “local operation, global signature” paradigm, in which the surrogate need only manipulate a single entangled particle to achieve a global signature through nonlocality, while the verifier recovers the message via a joint measurement. This approach conserves quantum resources and simplifies the verification process. The security analysis demonstrates that the proposed protocol can ensure blindness, satisfy the requirements of unforgeability and undeniability, and effectively resistance to interception-retransmission attacks.
Traditional digital signatures are based on mathematical hard problems that are vulnerable to quantum attacks. For privacy-sensitive applications such as electronic cash and electronic voting, partially blind signatures are preferable because they protect private messages while allowing signers to verify necessary public information. This paper proposes an identity-based quantum partially blind signature scheme based on quantum teleportation. Each signing session is assigned a unique identifier. The user blinds the private binary message by applying Pauli-X operations with a one-time random string, while public information remains visible to the signer. A trusted PKG performs identity authentication, signature authorization, session-key distribution, and time-period-based key lifecycle management. Quantum tags and quantum authentication codes provide verification and arbitration evidence, while quantum teleportation is used to transmit quantum information. In case of disputes, an arbitrator can verify independently stored quantum evidence, and channel monitoring enables the detection of eavesdropping and tampering. Security analysis shows that the proposed scheme satisfies partial blindness, unforgeability, and non-repudiation, and resists malicious third-party attacks. It is suitable for privacy-preserving and restricted-authorization applications such as electronic cash and electronic voting.
Abstract In this study, we propose an encrypted quantum teleportation broadcast scheme using a 6-qubit entangled channel and an encrypted quantum teleportation scheme with a controller via a 7-qubit entangled channel. The quantum state of Alice, to be transmitted, is first encrypted into two distinct states that satisfy certain conditions. As the main sender, Alice designates two agents to transmit encrypted states to two receivers. She shares a 6-qubit entangled state with each party and provides the receivers with a 1-bit classical information containing the chosen encryption. After the agents perform measurements on the corresponding orthogonal bases and send the results to the receivers, each receiver can reconstruct the original state sent by Alice. To enhance security for the receivers, the scheme introduces Alice as a controller. The receivers can reconstruct the original state only if Alice performs a measurement and shares her measurement outcome. The use of encryption ensures that even if an agent’s qubit is intercepted, the actual state remains secure. Alice, as the controller, can also terminate the transmission if a security threat is detected or she change her mind to finish the transmission. The teleportation performance depends on how the qubit is encrypted. For a specific input state used as an example, the protocol obtained a teleportation success probability of 0.9608.
With the development of science and technology and the appearance of various special conditions that cause signers to be unable to sign, proxy signature is gradually becoming a hot spot in cryptography research. This paper combines proxy signature, quantum teleportation, and multi-party verification and proposes a multi-party verifiable quantum proxy signature scheme based on quantum teleportation. This scheme has the following characteristics: The authentication method based on the Hash function can effectively solve the problem of identity identification among members; in order for the proxy signer to be able to verify the correctness of the proxy authorization, a form of proxy signature authorization that concatenates the identity information of the original signer is used. The security analysis shows that our scheme is unforgeable and undeniable and can resist intercept-resend attacks and cheating attacks.