Point of sale device with secure connection between security meshes

A point of sale device comprising:

• a first security processor located within a first security mesh;
• a second security processor located within a second security mesh;
• a first computer readable medium located within the first security mesh and accessible to the first security processor and storing instructions which, when executed by the first security processor cause the device to:
• generate a first certificate signing request which includes a first global unique identifier associated with the first security mesh;
• receive a signed first certificate from an external certificate authority in response to the first certificate signing request;
• and
• receive a signed second certificate from the external certificate authority;
• a second computer readable medium located within the second security mesh and accessible to the second security processor and storing instructions which, when executed by the second security processor cause the device to:
• generate a second certificate signing request which includes a second global unique identifier associated with the second security mesh;
• receive the signed second certificate from the external certificate authority in response to the second certificate signing request;
• and
• receive the signed first certificate from the external certificate authority;
• and
• wherein the instructions stored on the first and second computer readable medium further, when executed by the first and second security processors respectively, cause the device to:
• verify, on both the first and second security processors, the signed first certificate and the signed second certificate;
• generate, subsequent to verifying the signed first certificate and the signed second certificate and on both the first and second security processors, a unique pre-shared key using information from the signed first certificate and the signed second certificate;
• and
• establish a secure connection between the first security processor and the second security processor using the unique pre-shared key.

A point of sale device comprising:

• a first security processor located within a first security mesh;
• a first casing having a connector and supporting the first security mesh
• a second security processor located within a second security mesh;
• a second casing connected to the first casing via the connector and supporting the second security mesh;
• a first computer readable medium located within the first security mesh and accessible to the first security processor;
• a second computer readable medium located within the second security mesh and accessible to the second security processor;
• wherein instructions are stored by the first and second computer readable mediums which, when executed by the first security processor and the second security processor cause the device to:
• generate a unique pre-shared key independently on both the first security processor and the second security processor using an elliptic key exchange;
• and
• establish a secure connection between the first security processor and the second security processor using the unique pre-shared key.