Citigroup Technology, Inc.

Sudha Iyer

Alex McMahon

Paul Carey

Presented herein are techniques for establishing data provenance by generating one-time signatures. In examples, systems may include one or more hardware processors that receive, via an application programming interface (API), a request for a one-time signature and data associated with the request, provide a seed identifier and the data associated with the request to an HSM in a set of HSMs, and receive a response message from the HSM, the response message including a one-time signature. In examples, the response message and the one-time signature are provided to the device that transmitted the request for the one-time signature and the data associated with the request.

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North Dock, Ireland

Sudha Iyer