Joshua J Norem

Title: Joshua J. Norem and His Patent Work

Introduction

Joshua J. Norem is an inventor based in Austin, Texas. His patent work includes technology for improving authenticated decryption in execute-in-place systems. He is associated with Silicon Laboratories Inc. and holds 2 patents.

Latest Patents

Norem’s latest patent, “Per Unit Time Message Authentication Code,” describes an AES-GCM engine optimized for execute-in-place authenticated decryption. The system processes encrypted code stored in external memory and uses a cipher function to generate counter values for decryption and message authentication code validation.

The patent describes techniques intended to improve processing speed without duplicating the entire cipher-function hardware. These include precalculating a hash subkey, using multiple cipher-generation circuits with a single key-expansion circuit, and performing multiple rounds of key expansion and cipher generation per clock cycle.

Career Highlights

Norem’s patent work reflects a focus on cryptographic hardware and efficient execution of encrypted code. His association with Silicon Laboratories Inc. connects this work to the company’s technology development.

Collaborations

Norem’s listed coworkers include Heng Wee Cheng and Phil Matthews. Their names provide context for his professional network, though the supplied information does not specify particular joint projects or patent contributions.

Conclusion

Joshua J. Norem’s patent portfolio includes work on accelerating AES-GCM authenticated decryption for execute-in-place systems, highlighting his contributions to cryptographic hardware innovation.