Message sender authentication

A device, comprising:

• a processor;
• a memory coupled to the processor;
• an inter-process communications controller, coupled to the processor and memory, the inter-process communications controller, when operating, being configured to:
• receive, at a serving process via an inter-process communications facility from a requesting process that is different from the serving process, a message communicating between the requesting process and the serving process;
• determine, based on receipt of the message, a current fingerprint of memory associated with the requesting process;
• determine, based on receipt of the message, whether a previously determined fingerprint is stored for the requesting process, the previously determined fingerprint being determined since initialization of a processor executing the serving process;
• based on receipt of the message and based on a determination that the previously determined fingerprint is not stored:
• store the current fingerprint;
• and
• establish a communications channel between the serving process and the requesting process;
• based on receipt of the message and based on a determination that the previously determined fingerprint is stored, determining that the previously determined fingerprint matches the current fingerprint based on a comparison of the previously determined fingerprint and the current fingerprint;
• and
• establish the communications channel between the serving process and the requesting process based on receipt of the message, based on the determination that the previously determined fingerprint is stored and based on the determination that the previously determined fingerprint matches the current fingerprint.

A non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising instructions executable by a processor to:

• receive, at a serving process via an inter-process communications facility from a requesting process that is different from the serving process, a message communicating between the requesting process and the serving process;
• determine, based on receipt of the message, a current fingerprint of memory associated with the requesting process;
• determine, based on receipt of the message, whether a previously determined fingerprint is stored for the requesting process, the previously determined fingerprint being determined since initialization of a processor executing the serving process;
• based on receipt of the message and based on a determination that the previously determined fingerprint is not stored:
• store the current fingerprint;
• and
• establish a communications channel between the serving process and the requesting process;
• based on a determination that the previously determined fingerprint is stored and that the previously determined fingerprint matches the current fingerprint based on a comparison of the previously determined fingerprint and the current fingerprint;
• and
• establish the communications channel between the serving process and the requesting process based on receipt of the message, based on the determination that the previously determined fingerprint is stored and based on the determination that the previously determined fingerprint matches the current fingerprint.