Ronald L. Rivest
34Patents
15h-index
33Co-inventors
81Inventor score
Filing activity: Dec 14, 1977 → Nov 1, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4405829A | Cryptographic communications system and method | Physics | 1,432 | Expired |
| US6985583B1 | System and method for authentication seed distribution | Electricity | 410 | Expired |
| US7363494B2 | Method and apparatus for performing enhanced time-based authentication | Electricity | 360 | Expired |
| US6269163A | Enhanced block ciphers with data-dependent rotations | Electricity | 298 | Expired |
| US6970070B2 | Method and apparatus for selective blocking of radio frequency identification devices | Physics | 290 | Expired |
| US7502467B2 | System and method for authentication seed distribution | Electricity | 270 | Expired |
| US5144667A | Method of secure remote access | Electricity | 169 | Expired |
| US4376299A | Data center for remote postage meter recharging system having physically secure encrypting apparatus and employing encrypted seed number signals | Physics | 159 | Expired |
| US5724428A | Block encryption algorithm with data-dependent rotations | Electricity | 92 | Expired |
| US8966276B2 | System and method providing disconnected authentication | Electricity | 77 | Active |
| US5835600A | Block encryption algorithm with data-dependent rotations | Electricity | 63 | Expired |
| US8813234B1 | Graph-based approach to deterring persistent security threats | Electricity | 58 | Active |
| US4691299A | Method and apparatus for reusing non-erasable memory media | Physics | 45 | Expired |
| US9270655B1 | Configurable one-time authentication tokens with improved resilience to attacks | Electricity | 18 | Active |
| US9813243B1 | Methods and apparatus for password-based secret sharing schemes | Electricity | 16 | Active |
| US10635824B1 | Methods and apparatus for private set membership using aggregation for reduced communications | Physics | 15 | Active |
| US8984609B1 | Methods and apparatus for embedding auxiliary information in one-time passcodes | Physics | 14 | Active |
| US9471777B1 | Scheduling of defensive security actions in information processing systems | Electricity | 13 | Active |
| US9621576B1 | Detecting malicious websites | Electricity | 11 | Active |
| US9515989B1 | Methods and apparatus for silent alarm channels using one-time passcode authentication tokens | Electricity | 11 | Active |
| US9454654B1 | Multi-server one-time passcode verification on respective high order and low order passcode portions | Electricity | 11 | Active |
| US8438617B2 | User authentication based on voucher codes | Physics | 10 | Active |
| US8346742B1 | Remote verification of file protections for cloud data storage | Physics | 8 | Active |
| US8699713B1 | Key update with compromise detection | Electricity | 8 | Active |
| US9361447B1 | Authentication based on user-selected image overlay effects | Electricity | 8 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.