Inventor

KOCHER PAUL C

US50 patents

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

KOCHER PAUL C

CRYPTOGRAPHY RES INC

Verifiable, leak-resistant encryption and decryption

Method and system for copy-prevention of digital copyright works

Digital content protection method and apparatus

Leak-resistant cryptographic indexed key update

Balanced cryptographic computational method and apparatus for leak minimizational in smartcards and other cryptosystems

Using unpredictable information to minimize leakage from smartcards and other cryptosystems

Leak-resistant cryptographic method and apparatus

Des and other cryptographic, processes with leak minimization for smartcards and other cryptosystems

Apparatus and method for confirming, timestamping, and archiving printer and telecopier transmissions

Modules to securely provision an asset to a target device

Differential power analysis method and apparatus

Hardware-level mitigation and DPA countermeasures for cryptographic devices

Leak-resistant cryptographic method and apparatus

Secure modular exponentiation with leak minimization for smartcards and other cryptosystems

Cryptographic device with resistance to differential power analysis and other external monitoring attacks

Prevention of side channel attacks against block cipher implementations and other cryptographic systems

Cryptographic computation using masking to prevent differential power analysis and other attacks

Differential power analysis

Differential power analysis

Leak-resistant cryptographic payment smartcard

Using smartcards or other cryptographic modules for enabling connected devices to access encrypted audio and visual content

Securely provisioning a target device

Bitstream confirmation for configuration of a programmable logic device

Payment smart cards with hierarchical session key derivation providing security against differential power analysis and other attacks

Secure processor with resistance to external monitoring attacks

Secure boot with resistance to differential power analysis and other external monitoring attacks

Differential power analysis—resistant cryptographic processing

Programmable logic device with resistance to external monitoring attacks

Leak-resistant cryptographic payment smartcard

Generating and distributing pre-computed data (PCD) assets to a target device

Auditing and permission provisioning mechanisms in a distributed secure asset-management infrastructure

Security chip with resistance to external monitoring attacks

Modules to securely provision an asset to a target device

Apparatus with anticounterfeiting measures

Detection of data tampering of encrypted data

Securely provisioning a target device

Protecting media items using a media security controller

Modular exponentiation optimization for cryptographic systems

Protecting media items using a media security controller

Protecting media items using a media security controller

KOCHER PAUL C

Reprogrammable security for controlling piracy and enabling interactive content

Differential power analysis—resistant cryptographic processing

Method and system for secure access to non-volatile memory

Payment smart cards with hierarchical session key derivation providing security against differential power analysis and other attacks

Cryptographic token with leak-resistant key derivation

Specialized circuitry for cryptographic authentication and other purposes

ROVI SOLUTIONS CORP

Reprogrammable security for controlling piracy and enabling interactive content

Self-protecting digital content

CRYPOTOGRAPHY RES INC

Method and apparatus for preventing piracy of digital content

DOUBLECREDIT COM INC

Routing methods and systems for increasing payment transaction volume and profitability