23results about "Telegraphic message interchanged in time" patented technology

An apparatus for sharing data according to one embodiment includes a first combined data generator configured to generate first combined data by combining target data to be shared and a random bit string, a data encryptor configured to generate a ciphertext for the first combined data, a key encryptor configured to generate one or more ciphertexts for a decryption key of the ciphertext for the first combined data using one or more public keys, a second combined data generator configured to generate second combined data by combining the ciphertext for the first combined data, the one or more ciphertexts for the decryption key, and the random bit string, and a data discloser configured to disclose the second combined data to one or more entities to share the target data to be shared.

The invention relates to decomposition of mask values in cryptographically secure digital signature systems. Example embodiments include a method of mod 44 decomposition of an N-bit Boolean share input (b 'B, k), where Ngt; 12, the method comprising: i) reducing (302-305) the Boolean share input (b 'B, k) by adding a lower 11: 0 bit of the Boolean share input (b' B, k) to a higher portion of the input that is shifted left by 2 bits; a number of bits in k) to provide a first intermediate result # imgabs0 # having M bits ii) reducing (306-309) the number of bits of the first intermediate result # imgabs1 # by adding a lower 6: 0 portion of the intermediate result to a higher portion shifted left by 2 bits followed by subtracting from a multiple of 44 to provide a second intermediate result # imgabs2 # and iii) adjusting (310-316) by adding and / or subtracting 44 The second intermediate result # imgabs3 # provides an output # imgabs4 # having a value within the interval 0: 43, the output # imgabs5 # being represented by mod 44 of the input (b 'B, k).

The disclosure relates to decomposition of masked values in a cryptographically secure digital signing system. Example embodiments include a method of decomposing mod 44 an N bit Boolean share input (b′B,k), where N>12, the method comprising: i) reducing (302-305) a number of bits in the Boolean share input (b′B,k) by adding a lower 11:0 bits of the input (b′B,k) to an upper portion of the input left shifted by 2 bits to provide a first intermediate result (t1B,13) having M bits; ii) reducing (306-309) a number of bits of the first intermediate result (t1B,13) by adding a lower 6:0 portion of the intermediate result to an upper portion left shifted by 2 bits and subtracted from a multiple of 44 to provide a second intermediate result (t3B,8); and iii) adjusting (310-316) the second intermediate result (t3B,8) by adding and / or subtracting 44 to provide an output (w1B,k′) having a value within an interval of 0:43, the output (w1B,k′) being a mod 44 representation of the input (b′B,k).

An authentication system includes a vehicle control device and a server, a first processor and a second processor. The first processor included in the vehicle control device may transmit a signal for requesting authentication information to the server, receive a signal containing first unique information from the server, receive a short message service (SMS) message containing second unique information, transmit a signal containing third unique information to the server based on identifying the second unique information corresponding to the first unique information, receive the authentication information from the server based on the transmitted signal containing the third unique information, and perform a service based on the authentication information. The second processor included in the server may transmit the authentication information to the vehicle control device.

We provide the system. [Solution] Means for generating a message, A means of automatically adding recipient accounts, including public institutions, to the aforementioned message, When sending the aforementioned message, means for saving the content of the message to cloud storage in an unmodifiable form, Means for recording the transmission and reception history of the aforementioned messages with a timestamp added, A means of verifying the recipient's identity, A system that includes means for transmitting and recording the recognition status after identity verification to a server.

A secure communication system enabling secure transport of information is disclosed. The system comprises a secure network with one or more packet processing units connected by links through an internal communication system. The secure network transports packets of information between credentialed and authenticated agents. Each packet is associated with a visa issued by a visa service. The visa specifies the procedures governing the processing of the packet by the packet processing units as it is transported along a compliant flow, between agents thorough the network, according to a set of policies specified in a network configuration. Packet processing units include docks and forwarders. Adaptors serving the agents communicate with the network through tie-ins to docks. The system also includes and admin service, accessible to one more admins, that facilitates configuration and management of the network.

We provide the system. [Solution] Means for creating digital information using communication devices, A means of authenticating the user's identity, A means for transmitting digital information, after user authentication has been completed, to identified receiving and supervisory authorities, A means for storing digital information in a cloud computing environment and for applying time stamps and electronic signatures, A means for recording the information confirmed when a receiving institution receives digital information, In electronic transactions, a means to automatically generate transaction records and store them in cloud storage as legal evidence, A system that includes this.

An authentication system includes a vehicle control device and a server, a first processor and a second processor. The first processor included in the vehicle control device may transmit a signal for requesting authentication information to the server, receive a signal containing first unique information from the server, receive a short message service (SMS) message containing second unique information, transmit a signal containing third unique information to the server based on identifying the second unique information corresponding to the first unique information, receive the authentication information from the server based on the transmitted signal containing the third unique information, and perform a service based on the authentication information. The second processor included in the server may transmit the authentication information to the vehicle control device.

In this invention, a novel method and system for channel independent interleaving is proposed.

This invention discloses a GCM optimization method and system based on block cipher algorithms and bit slicing, belonging to the field of cryptographic algorithm technology. The input sequence is converted from standard block form to bit slice form using a data form conversion algorithm. The bit slice form data is used as input to the block cipher algorithm, and after multiple rounds of iterative computation, the output sequence, still in bit slice form, is obtained. The proposed friendly variant omits the data form conversion (i.e., backward conversion) at the output of the parallel block cipher algorithm, directly XORing the plaintext blocks in standard form with the bit slice form output sequence to obtain the ciphertext output. While ensuring security, the optimized GCM yields a friendly variant GCM mode based on bit slice implementation. + This reduces the overhead of data format conversion throughout the authentication and encryption process.

An example operation may include one or more of generating an initial seed and allocating one or more authorized bits of the initial seed to a plurality of blocks in a distributed ledger, storing the initial seed and an identification of which authorized bits of the initial seed are allocated to each block of the distributed ledger, receiving a final seed value that is partially generated by each of a plurality of nodes configured to access the distributed ledger based on authorized bits of respective blocks updated by each respective node, and generating a random sequence value based on the final seed value and storing the random sequence value in a block of the distributed ledger.

To provide an information processing device that enables reliable and easy generation of wallet addresses on a blockchain associated with real people. [Solution] An information processing device 200 acquires at least a portion of the public key of an electronic certificate included in an identification document C held by a user and transmits it onto a blockchain 500. The information processing device 200 derives a wallet address that the user can use on the blockchain 500 based on the portion of the public key using a first smart contract 510. The information processing device 200 outputs the derived address so that it can be used by the user.

The present invention provides an identity authentication method based on key features, a computer device, and a computer-readable storage medium, wherein the method calculates a first average time interval and a first time interval at the moment when a preset key is pressed to determine a preset key feature value, calculates a second average time interval and a second time interval at the moment when a current key is pressed to determine a current user feature value, and then determines whether the current key feature value is within the preset key feature range, thereby determining whether the user's identity authentication is passed based on the judgment result. The present invention can still perform identity authentication even when a PIN code or SMS verification code is leaked, which can enhance the effect of digital identity authentication. In addition, the present invention does not require hardware improvements, and the method for calculating the user's key features is simple and has a wide range of applications. The present invention also provides a computer device and a computer-readable storage medium for the above-mentioned identity authentication method based on key features.

A secure inference over Deep Neural Networks (DNNs) using secure two-party computation to perform privacy-preserving machine learning. The secure inference uses a particular type of comparison that can be used as a building block for various layers in the DNN including, for example, ReLU activations and divisions. The comparison securely computes a Boolean share of a bit representing whether input value x is less than input value y, where x is held by a user of the DNN, and where y is held by a provider of the DNN. Each party computing system parses their input into leaf strings of multiple bits. This is much more efficient than if the leaf strings were individual bits. Accordingly, the secure inference described herein is more readily adapted for using in complex DNNs.

Techniques for obfuscating and / or de-obfuscating data using bit-level shard masks are disclosed. Shard masks are generated. The shard masks are designed to shard a block of data into a number of shards for distribution and storage among a number of storage arrays. The shard masks shard the block of data at a bit-level granularity. The shard masks are applied to the block of data to generate the shards. The shards are then distributed among the storage arrays for storage on the storage arrays.

According to one aspect, there is provided a computer-implemented method of selecting a value from two values ​​stored in two different registers from a selection bit, the method comprising: - a concatenation (20) of the two values ​​stored in the two registers so as to obtain a concatenated word having said two values ​​in two distinct portions of the concatenated word, then - a rotation (21, 21a, 21b) of said concatenated word according to the value of the selection bit so as to position the selected value in a given portion of the concatenated word among said two portions, then - a deletion (22) of the unselected value in the concatenated word so as to retain only the selected value in the concatenated word by eliminating the unselected value from the concatenated word. Figure for abstract: Figure 1

A secure communication system enabling secure transport of information is disclosed. The system comprises a secure network with one or more packet processing units connected by links through an internal communication system. The secure network transports packets of information between credentialed and authenticated agents. Each packet is associated with a visa issued by a visa service. The visa specifies the procedures governing the processing of the packet by the packet processing units as it is transported along a compliant flow, between agents thorough the network, according to a set of policies specified in a network configuration. Packet processing units include docks and forwarders. Adaptors serving the agents communicate with the network through tie-ins to docks. The system also includes and admin service, accessible to one more admins, that facilitates configuration and management of the network.

Provide a system. 【Solution means】 Means for storing user authentication information in a storage element; Means for automatically accessing a specified application program using the user authentication information; Means for synchronizing user information stored in another device after the access; Means for querying an external information source when the authentication information is unknown; Means for updating authentication information based on the query result; Means for integrally managing digital terminal data of residents; Means for automatically synchronizing personal settings and service information to a new terminal; A system including the above.

We provide the system. [Solution] A means for receiving user identification information and determining the procedure corresponding to the selected unsubscribe service, Based on the said procedure, a means to automatically select and execute the appropriate procedure from among several unsubscribe procedures, A means of notifying the user of the execution results, A system that includes this.

The disclosure relates to decomposition of masked values in a cryptographically secure digital signing system. Example embodiments include a method of decomposing mod 44 an N bit Boolean share input (b'B,k), where N>12, the method comprising: i) reducing (302-305) a number of bits in the Boolean share input (b'B,k) by adding a lower 11:0 bits of the input (b'B,k) to an upper portion of the input left shifted by 2 bits to provide a first intermediate result ( t1B,13) having M bits; ii) reducing (306-309) a number of bits of the first intermediate result ( t1B,13) by adding a lower 6:0 portion of the intermediate result to an upper portion left shifted by 2 bits and subtracted from a multiple of 44 to provide a second intermediate result ( t3B,8); and iii) adjusting (310-316) the second intermediate result ( t3B,8) by adding and / or subtracting 44 to provide an output ( w1B,k′) having a value within an interval of 0:43, the output ( w1B,k′) being a mod 44 representation of the input (b'B,k).

A hardware architecture configured to implement ASCON cryptographic algorithms and protect against side-channel attacks that includes a co-processor having a controller, a logic gate operably configured to receive a data input and ASCON state memory data in an initial cycle of permutation iterations, a multiplexor operably configured to direct data input from the logic gate based on a signal received from the controller and in the initial cycle of permutation iterations, an ASCON state memory operably configured to receive the processed data in the initial cycle of permutation iterations, and that is operably configured to implement a permutation round configured to receive the data input directly from the logic gate through the multiplexor and process the data input utilizing a permutation function to generate processed data and in the initial cycle of permutation iterations.

The invention comprises a method for validating vehicle data (22) of a designated vehicle and a vehicle that is designed to conduct corresponding steps of this method. The method comprises transmitting a configuration file (16) to a data collecting device (18) of a presumed vehicle (20), wherein the configuration file (16) comprises details on the wanted specific vehicle data (22) (S1). The data collecting device (18) then retrieves the requested specific vehicle data (22) accordingly and assembles it as a specific data item (24) according to a prescribed data assembling rule (S2, S3). Afterwards, the specific data item (24) is transmitted to an evaluation unit (14) to be disassembled (S4). Only if the transmitted specific data item (24) features the prescribed data assembling rule, the disassembled specific vehicle data (22) is validated and provided as vehicle data (22) of the designated vehicle (S5, S6).