Inventor

CRISPIN THOMAS A

US36 patents

⚠️ This page may combine multiple inventors who share the name “CRISPIN THOMAS A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CRISPIN THOMAS A

VIA TECH INC

Apparatus and method for secure hash algorithm

Microprocessor apparatus and method for providing configurable cryptographic block cipher round results

Apparatus and method for generating a cryptographic key schedule in a microprocessor

Key expansion logic using decryption key primitives

Apparatus and method for employing cryptographic functions to generate a message digest

Microprocessor apparatus and method for employing configurable block cipher cryptographic algorithms

Microprocessor apparatus and method for modular exponentiation

Microprocessor apparatus and method for providing configurable cryptographic key size

Apparatus and method for performing transparent output feedback mode cryptographic functions

Microprocessor apparatus and method for optimizing block cipher cryptographic functions

Microprocessor with on-the-fly switching of decryption keys

Decryption of encrypted instructions using keys selected on basis of instruction fetch address

Microprocessor with secure execution mode and store key instructions

Method for encrypting a program for subsequent execution by a microprocessor configured to decrypt and execute the encrypted program

Microprocessor that facilitates task switching between encrypted and unencrypted programs

Apparatus and method for performing transparent cipher block chaining mode cryptographic functions

Apparatus and method for performing transparent cipher feedback mode cryptographic functions

Microprocessor apparatus and method for enabling configurable data block size in a cryptographic engine

Microprocessor that securely decrypts and executes encrypted instructions

Apparatus for generating a decryption key for use to decrypt a block of encrypted instruction data being fetched from an instruction cache in a microprocessor

HENRY G GLENN

Microprocessor that facilitates task switching between multiple encrypted programs having different associated decryption key values

Apparatus and method for providing user-generated key schedule in a microprocessor cryptographic engine

Branch target address cache for predicting instruction decryption keys in a microprocessor that fetches and decrypts encrypted instructions

Branch and switch key instruction in a microprocessor that fetches and decrypts encrypted instructions

Switch key instruction in a microprocessor that fetches and decrypts encrypted instructions

Microprocessor that facilitates task switching between encrypted and unencrypted programs

Microprocessor that fetches and decrypts encrypted instructions in same time as plain text instructions

IP FIRST LLC

Microprocessor apparatus and method for performing block cipher cryptographic functions

Microprocessor apparatus and method for performing block cipher cryptographic functions

Apparatus and method for performing transparent block cipher cryptographic functions

Microprocessor with selectivity available random number generator based on self-test result

Apparatus and method for reducing sequential bit correlation in a random number generator

CRISPIN THOMAS A

Atomic hash instruction

Microprocessor with selectively available random number generator based on self-test result

Apparatus and method for employing configurable hash algorithms

Apparatus and method for performing transparent hash functions