HSM ( HARDWARE SECURITY MODULE )
- Security hardware (HSM) is a secure device that provides the necessary encryption capabilities to provide security in the exchange of information and encryption algorithms. The main uses of this device are in building key and its secure storage, processing security certificates, and managing PKI encryption keys. These applications are presented in the form of services such as the Web Services for Digital Signing, Digital Signing with Mobile Phones, the HSM Integration System with Bank Switches, the Key Management System, the Integrated Security Information System for the database
GSM HARDWARE SECURITY MODULE 
- GSM hardware Security is a device for secure GSM protocol. This system is currently working with the A51 code algorithm. The A51 bit password algorithm is due to the decoding protocol’s weaknesses and 5 / x decoding, so it can be heard. By applying protocol modifications and optimizing the implementation The algorithm of decoding is low and can not be read by the usual tool. A5 (X, Kc) = Y (due to weaknesses in the protocol), as well as the knowledge of the X alertness and the knowledge of some of the parameters of the Y encoder with the receipt of A51