Systems and methods for secure processing with embedded cryptographic unit

Patent metadata

Field	Value
Publication number	US-9135472-B2
Application number	US-201314068484-A
Country	US
Kind code	B2
Filing date	Oct 31, 2013
Priority date	Oct 31, 2013
Publication date	Sep 15, 2015
Grant date	Sep 15, 2015

Abstract

Processor system with a general purpose processor and a cryptographic processor dedicated to performing cryptographic operations and enforcing the security of critical security parameters. The cryptographic processor prevents exposure of critical security parameters outside the cryptographic processor itself, and instead implements a limited scripting engine, which can be used by the general purpose processor to execute operations that require the critical security parameters.

First claim

We claim:

1. A cryptographic processing unit for cryptographic processing in conjunction with a general purpose processor, the cryptographic processing unit comprising:
a cryptographic processor, the cryptographic processor configured to:
receive a script identifier from the general purpose processor;
verify that a script identified by the script identifier is authorized for execution on the cryptographic processor;
execute the script to produce a script result; and
determi…

Assignees

• Kili Technology Corp
• Square Inc

Inventors

• Smith Malcolm Ronald
• Vadera Kshitiz
• Zagrodney Mark Philip
• Ng Kevin Ka Wai
• Rezayee Afshin

Classifications

• H04L63/0853

  Electricity · mapped topic

• H04L9/0894

  Electricity · mapped topic

• G06F21/556

  Physics · mapped topic

• H04L2463/102

  Electricity · mapped topic

• H04L9/3236

  Electricity · mapped topic