Abstract: The present disclosure generally relates to a blockchain monitoring system. For example, aspects of the present disclosure include systems and techniques for monitoring one or more transactions on a block chain using configured rules. Some aspects include a monitoring system having at least one memory and at least one processor coupled to the at least one memory and configured to: detect a block on a blockchain; retrieve, from a rules database, a rule associated with one or more transactions on the block; determine whether the rule applies to one or more transactions on the block; and perform one or more actions associated with the rule using an authentication code associated with a user, the authentication code being different than a private key of the user for accessing the blockchain.

Abstract: Systems and techniques are described herein for validating one or more requests. For example, the systems and techniques can include receiving message data from a first device accessible to a user. The message data can be associated with a message to be sent using the first device. The systems and techniques can also include sending, to a second device accessible to the user, a request for confirmation that the user requested a digital signature for the message, the first device and second device being different devices. The systems and techniques can further include receiving a confirmation from the second device, the confirmation confirming that the user requested the digital signature for the message. The systems and techniques can further include generating the digital signature for the message using the message data and a private key and sending the digital signature to the first device.

Abstract: A method of registering or authenticating a user with a relying party is provided, the method including: receiving a request to generate a key pair, the request including key-generation data, the key-generation data including relying party information; deterministically generating, based on at least the key-generation data and a secret key stored in a memory of the authenticator, a key pair comprising a public key and a private key; either: transmitting the public key, or performing further processing using the private key; and deleting the key pair. An authenticator configured to perform the process is also provided.

Abstract: The disclosure is related to a computer implemented method for assessing a dataset of integers, where the dataset previously is split into a plurality of subsets of the integers. In some embodiments, the integers are integer public keys for encryption or decryption. According to a first aspect, each subset in the dataset has a product data structure that is generated for the product of the integers in the subset. Each ordered pair of subsets has a remainder data structure for computing the factors of the integers in the subsets of the ordered pair. When one or more integers are to be added to the dataset, the disclosed method proposes that a subset is created to include the one or more integers be added. A product data structure is then generated for the created subset to obtain the product of the integer(s) in the created subset. Distinct ordered pairs of subsets comprising a subset from the dataset and the created subset are then identified.