Fully homomorphic encrypted processing acceleration

A device for processing fully homogeneous encrypted data, the device comprising:

• a command input with pipeline stages;
• a register file coupled to the command input via a non-pipelined stage and an ultimate pipelined stage;
• a first multiplexer with a first input coupled to the register file, a second input coupled to a data input, and a select coupled to the first pipeline stage of the command input;
• a second multiplexer with a first input coupled to the register file, a second input coupled to a first pipeline stage of the command input, and a select coupled to the first pipeline stage of the command input;
• a multiplier coupled to outputs of the first multiplexer and the second multiplexer, wherein the multiplier has a predetermined number of pipeline stages;
• a third multiplexer with a first input coupled to an output of the multiplier, a second input coupled to the output of the first multiplexer, and a select coupled to a penultimate pipeline stage of the command input;
• a fourth multiplexer with a first input coupled to ground, a second input coupled to the output of the second multiplexer, and a select coupled to the penultimate pipeline stage of the command input;
• and
• an adder element with a first input coupled to an output of the third multiplexer, a second input coupled to an output of the fourth multiplexer, a select line coupled to the penultimate pipeline stage of the command input, and an output coupled to the register file.