Overview of Cloud Hardware Security Module for Payment Applications
A hardware security module (HSM) is a tamper-resistant physical computing device that safeguards and manages digital keys, performs encryption and decryption functions for digital signatures, and provides strong authentication and other cryptographic functions. HSM has mature technology, with high availability, scalability, and usability. These modules traditionally come in the form of a plug-in card or an external device that attaches directly to a computer or a network server.