Abstract: A circuit board assembly is provided. The circuit board assembly includes a circuit board and a plurality of chips assembled on a surface of the circuit board. The plurality of chips include integrated circuit (IC) chips. At least two chips are positioned on the surface of the circuit board adjacent to one another with a spacing separating the two chips that is less than a minimum dimension of each of the two chips. A method for circuit board assembly is also provided.

Abstract: A first firmware source code portion corresponding to an immutable firmware portion of specific firmware to be deployed with embedded devices is identified. A second different firmware source code portion corresponding to a mutable firmware portion of the specific firmware to be deployed with the embedded devices is identified. The first firmware source code portion is used to generate the immutable firmware portion of the specific firmware. The second firmware source code portion is used to generate the mutable firmware portion of the specific firmware. The immutable firmware portion of the specific firmware is caused to be installed in fixed storage drives of an embedded device in the embedded devices. The mutable firmware portion of the specific firmware is caused to be installed in swappable storage drives of the same embedded device.

Abstract: A local buffer is integrated with a witness generator and a proof generator on a cryptographic processor and is separate from host memory accessed by a host processor operating with the cryptographic processor in a proving computing system. The witness generator: receives, from software program running on the host processor, compiled code of a zero-knowledge-proof (ZKP) program and specific input to the ZKP program; executes the ZKP program by way of executing the compiled code; records specific output generated from the ZKP program with the specific input, intermediate variable values, and the specific input, as a specific witness of executing the ZKP program; stores the specific witness in the local buffer. The proof generator: receives, from the software program running on the host processor, a proving key; accesses the specific witness in the local buffer; generates a specific zero-knowledge proof for executing the ZKP program with the specific input.

Abstract: A first firmware source code portion corresponding to an immutable firmware portion of specific firmware to be deployed with embedded devices is identified. A second different firmware source code portion corresponding to a mutable firmware portion of the specific firmware to be deployed with the embedded devices is identified. The first firmware source code portion is used to generate the immutable firmware portion of the specific firmware. The second firmware source code portion is used to generate the mutable firmware portion of the specific firmware. The immutable firmware portion of the specific firmware is caused to be installed in fixed storage drives of an embedded device in the embedded devices. The mutable firmware portion of the specific firmware is caused to be installed in swappable storage drives of the same embedded device.