Systems, methods, and computer-readable media for facilitating an authentication processing service are provided.

Methods, systems, and apparatus for risk mitigation for a cryptoasset custodial system include transmitting an endorsement request for a cryptoasset transaction to a user device configured to cause the user device to prompt a user to endorse the cryptoasset transaction. Multiple data points are collected from mobile devices associated with the user. The data points indicate an identity of the user. A cryptographic endorsement of the cryptoasset transaction is received from the user device. A graphical visualization including a risk metric is generated based on the data points. The risk metric indicates a risk of accepting the cryptographic endorsement from the user device. Generating the graphical visualization includes determining whether the plurality of data points matches expected values.

A computer-implemented method of generating shares of private keys, wherein the method is performed by a first participant of a group of participants and comprises: obtaining a first seed share, wherein each other participant has a respective seed share; generating a first master private key share of a shared master private key, wherein the first master private key share is generated based on the first seed share and the respective seed share of each other participant, and wherein each other participant has a respective master private key share; and generating one or more first private key shares based on the first master private key share, wherein each first private key share is a share of a respective shared private key.

A method of creating and applying a self-authenticating digital identity for a user having an identity is described.

A method and a system for multi-block mining in at least one single round under different consensus schemes. Embodiments can utilize a concept of sequential multiple block mining in (a) single mining round(s) from a single node. Thereby, the node can separate the transactions based on the context to select the appropriate consensus algorithm in order to use multiple consensus algorithms at the same mining round, one for each block (not one after another in different mining rounds).

Systems and applications are described that use group signature technology to allow for anonymous and/or semi-anonymous feedback while allowing for the application of rules and parameters. The use of group signature technology may serve to potentially mitigate or prevent malicious identification of individuals or entities providing a communication such as feedback. Feedback may range from constructive feedback all the way to the ‘whistleblower’ variety. It may be desirable to identify the individuals as belonging to a particular group or having a particular status or position while maintaining the anonymity of the individuals within the particular group.

A framework for managing authorization for performance of actions with a computing system. For example, techniques for performing authorization of users and/or clients for access to an infrastructure service provided by a cloud servicer provider (CSP) and/or for performance of actions with the infrastructure service.

Methods, systems, and devices for public key protection techniques are described. An embedded multimedia card (eMMC) may be formatted to include a permanent write protect group that is configured to prevent disabling of write protection for data stored in the permanent write protect group. The eMMC may store a public key associated with a first host device in the permanent write protect group of the eMMC. A data package may be received from the host device and authenticated by using the public key stored in the permanent write protect group. The embedded memory controller may be configured to prevent modifying or writing data to a permanent write protect group.

Technologies are shown for trust delegation that involve receiving a first request from a subject client and responding by sending a first token having first permissions to the subject client. A second request from a first actor includes the first token and responding involves linking the first actor to the subject client in a trust stack and sending a second token to the first actor with second permissions, the second token being a first complex token that identifies the subject client and the first actor. A third request from a second actor includes the second token and responding to the third request involves linking the second actor to the first actor in the trust stack, and sending a third token to the second actor partner with third permissions, the third token being a second complex token that identifies the first actor and the second actor.

A system and method for implementation of transaction security on a distributed ledger-based Mobility-as-a-Service (MaaS) platform is provided. The system includes a message broker device which receives a transaction request associated with a transport service from a publisher node of a transportation provider. The message broker device routes, via an API gateway hosted on the message broker device, the transaction request to a subscriber node of the transportation provider. The API gateway validates the transaction request based on application of a set of security rules on the transaction request. The subscriber node is associated with a first node of a distributed ledger node that stores a first state object. The first state object includes transaction data associated with the transport service. The distributed ledger node receives the validated first transaction request from the API gateway, via the subscriber node and updates the transaction data based on the received transaction request.