Cryptography Research, Inc.
195Patents
178Active
195Granted
57Portfolio score
Filing activity: Mar 5, 1997 → Apr 23, 2024 · 7 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6289455A | Method and apparatus for preventing piracy of digital content | Electricity | 361 | Expired |
| US10015164B2 | Modules to securely provision an asset to a target device | Electricity | 271 | Active |
| US6278783A | Des and other cryptographic, processes with leak minimization for smartcards and other cryptosystems | Electricity | 170 | Expired |
| US6640305B2 | Digital content protection method and apparatus | Electricity | 150 | Expired |
| US6304658A | Leak-resistant cryptographic method and apparatus | Electricity | 139 | Expired |
| US6327661A | Using unpredictable information to minimize leakage from smartcards and other cryptosystems | Electricity | 134 | Expired |
| US6978370B1 | Method and system for copy-prevention of digital copyright works | Electricity | 129 | Expired |
| US8386800B2 | Verifiable, leak-resistant encryption and decryption | Electricity | 128 | Active |
| US6539092B1 | Leak-resistant cryptographic indexed key update | Physics | 115 | Expired |
| US6188766A | Apparatus and method for confirming, timestamping, and archiving printer and telecopier transmissions | Electricity | 107 | Expired |
| US6298442A | Secure modular exponentiation with leak minimization for smartcards and other cryptosystems | Electricity | 82 | Expired |
| US6510518B1 | Balanced cryptographic computational method and apparatus for leak minimizational in smartcards and other cryptosystems | Electricity | 77 | Expired |
| US6654884B2 | Hardware-level mitigation and DPA countermeasures for cryptographic devices | Electricity | 69 | Expired |
| US6381699B2 | Leak-resistant cryptographic method and apparatus | Electricity | 54 | Expired |
| US7587044B2 | Differential power analysis method and apparatus | Electricity | 42 | Active |
| US7599488B2 | Differential power analysis | Electricity | 38 | Active |
| US7668310B2 | Cryptographic computation using masking to prevent differential power analysis and other attacks | Electricity | 37 | Active |
| US7787620B2 | Prevention of side channel attacks against block cipher implementations and other cryptographic systems | Electricity | 35 | Expired |
| US7634083B2 | Differential power analysis | Electricity | 25 | Active |
| US7506165B2 | Leak-resistant cryptographic payment smartcard | Electricity | 25 | Expired |
| US7039816B2 | Using smartcards or other cryptographic modules for enabling connected devices to access encrypted audio and visual content | Electricity | 23 | Expired |
| US7941666B2 | Payment smart cards with hierarchical session key derivation providing security against differential power analysis and other attacks | Physics | 22 | Expired |
| US8707052B2 | Cryptographic device with resistance to differential power analysis and other external monitoring attacks | Electricity | 20 | Active |
| US9755822B2 | Countermeasure to power analysis attacks through time-varying impedance of power delivery networks | Electricity | 13 | Active |
| US11310227B2 | Securely provisioning a target device | Electricity | 12 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.