Abstract: Methods, systems, and devices for data management are described. A wallet service may include one or more application programming interface (API) endpoints. An API endpoint may receive a set of requests to broadcast messages via one or more blockchain networks, the set of requests including a first request to broadcast a first message via a first blockchain network and a second request to broadcast a second message via a second blockchain network. A first blockchain message may be generated using a mapping of a plurality of sets of network-specific parameters to respective blockchain networks, and the first blockchain message may include a first set of network-specific parameters. A second blockchain message may also be generated using the mapping, and the second blockchain message may include a second set of network-specific parameters. The first and second blockchain messages may be broadcast via respective nodes of the blockchain networks.

Abstract: Aspects of the disclosure relate to processing cryptocurrency transactions. A computing platform may receive a transaction request. The computing platform may request SEKs from operator devices, and may receive requests to download encrypted SEKs accordingly. The computing platform may send the encrypted SEKs, and may receive corresponding decrypted SEKs from the operator devices in response. The computing platform may decrypt encrypted shares using the SEKs, and may use the decrypted shares to reconstruct a cryptographic signing key. The computing platform may validate the cryptographic signing key, and based on successful validation of the cryptographic signing key, may transfer authorize the requested transaction.

Abstract: Aspects of the disclosure relate to storing sensitive information. A computing platform may split a signature key into shares, which may be used to regenerate the signature key. The computing platform may encrypt these shares using corresponding SEKs, and may subsequently encrypt the SEKs using corresponding operator keys. The computing platform may distribute the operator keys to user devices via corresponding HSMs. The computing platform may store the encrypted shares, encrypted SEKs, and identifiers of the user devices. The computing platform may receive requests for the encrypted SEKs from the user devices, and may send the respective encrypted SEKs accordingly. The user devices may return, to the computing platform, corresponding decrypted SEKs. The computing platform may use the SEKs to decrypt the encrypted shares, which may then be used to reconstruct the signature key.

Abstract: Aspects of the disclosure relate to storing sensitive information. A computing platform may split a signature key into shares, which may be used to regenerate the signature key. The computing platform may encrypt these shares using corresponding SEKs, and may subsequently encrypt the SEKs using corresponding operator keys. The computing platform may distribute the operator keys to user devices via corresponding HSMs. The computing platform may store the encrypted shares, encrypted SEKs, and identifiers of the user devices. The computing platform may receive requests for the encrypted SEKs from the user devices, and may send the respective encrypted SEKs accordingly. The user devices may return, to the computing platform, corresponding decrypted SEKs. The computing platform may use the SEKs to decrypt the encrypted shares, which may then be used to reconstruct the signature key.

Abstract: Aspects of the disclosure relate to processing cryptocurrency transactions. A computing platform may receive a transaction request. The computing platform may request SEKs from operator devices, and may receive requests to download encrypted SEKs accordingly. The computing platform may send the encrypted SEKs, and may receive corresponding decrypted SEKs from the operator devices in response. The computing platform may decrypt encrypted shares using the SEKs, and may use the decrypted shares to reconstruct a cryptographic signing key. The computing platform may validate the cryptographic signing key, and based on successful validation of the cryptographic signing key, may transfer authorize the requested transaction.