| |
Pat.
No. |
Title |
| 401. |
5,412,722
encryption key management May 2, 1995 |
| 402. |
5,412,721
Method for loading and utilizing a key in a secure transmission device |
| 403. |
5,410,602
Method for key management of point-to-point communications |
| 404. |
5,410,599
Voice and data encryption device |
| 405. |
5,410,598
Database usage metering and protection system and method |
| 406. |
5,404,404
Method for updating encryption key information in communication units |
| 407. |
5,404,403
Key management in encryption systems |
| 408. |
5,402,491
Method for providing limited secure services in secure trunking communication
systems |
| 409. |
5,398,932
Video lottery system with improved site controller and validation unit |
| 410. |
5,398,283
encryption device |
| 411. |
5,394,471
Method and system for proactive password validation |
| 412. |
5,392,357
Secure telecommunications |
| 413. |
5,392,353
Interactive satellite broadcast network |
| 414. |
5,392,351
Electronic data protection system |
| 415. |
5,390,251
Mail processing system including data center verification for mailpieces |
| 416. |
5,388,158
Secure document and method and apparatus for producing and authenticating
same |
| 417. |
H1,414
Nonvolatile memory system for storing a key word and sensing the presence
of an external loader device and encryption circuit |
| 418. |
5,386,469
Firmware encryption for microprocessor/microcomputer |
| 419. |
5,384,850
Security apparatus and system for retail environments |
| 420. |
5,384,848
Encrypted virtual terminal equipment having initialization device for preventing
reply attack |
| 421. |
5,384,847
Method and apparatus for protecting cordless telephone account authentication
information |
| 422. |
5,384,846
System and apparatus for controlled production of a secure identification
card |
| 423. |
5,381,481
Method and apparatus for uniquely encrypting a plurality of services at a
transmission site |
| 424. |
5,381,480
System for translating encrypted data |
| 425. |
5,381,479
Method for over the air rekeying of multiple communication groups |
| 426. |
5,379,344
Smart card validation device and method |
| 427. |
5,377,270
Cryptographic authentication of transmitted messages using pseudorandom
numbers |
| 428. |
5,377,264
Memory access protection circuit with encryption key |
| 429. |
5,377,137
Read-protected semiconductor program memory |
| 430. |
5,375,172
Postage payment system employing encryption techniques and accounting for
postage payment at a time subsequent to the printing of postage |
| 431. |
5,375,169
Cryptographic key management method and apparatus |
| 432. |
5,371,797
Secure electronic funds transfer from telephone or unsecured terminal |
| 433. |
5,369,783
Dynamic regrouping in a trunked radio communications systems |
| 434. |
5,369,705
Multi-party secure session/conference |
| 435. |
5,369,704
Down-line transcription system for manipulating real-time testimony |
| 436. |
5,365,591
Secure cryptographic logic arrangement |
| 437. |
5,365,590
System for providing access to digitally encoded communications in a distributed
switching network |
| 438. |
5,365,589
Method and apparatus for encryption, decryption and authentication using
dynamical systems |
| 439. |
5,365,588
High speed encryption system and method |
| 440. |
5,365,585
Method and apparatus for encryption having a feedback register with selectable
taps |
| 441. |
5,363,448
Pseudorandom number generation and cryptographic authentication |
| 442. |
5,363,447
Method for loading encryption keys into secure transmission devices |
| 443. |
5,361,302
Method for encryption sync compression in an encrypted radio telephone
interconnect system |
| 444. |
5,357,573
Memory card |
| 445. |
5,357,572
Apparatus and method for sensitive circuit protection with set-scan testing |
| 446. |
5,357,571
Method for point-to-point communications within secure communication
systems |
| 447. |
5,355,413
Authentication method performed between IC card and terminal unit and system
therefor |
| 448. |
5,353,351
Secure teleconferencing |
| 449. |
5,353,114
Opto-electronic interferometic logic |
| 450. |
5,351,299
Apparatus and method for data encryption with block selection keys and data
encryption keys |
| 451. |
5,351,298
Cryptographic communication method and apparatus |
| 452. |
5,351,296
Financial transmission system |
| 453. |
5,347,580
Authentication method and system with a smartcard |
| 454. |
5,347,579
Personal computer diary |
| 455. |
5,345,508
Method and apparatus for variable-overhead cached encryption |
| 456. |
5,345,507
Secure message authentication for binary additive stream cipher systems |
| 457. |
5,343,530
Method for the authentication of data |
| 458. |
5,343,529
Transaction authentication using a centrally generated transaction
identifier |
| 459. |
5,343,528
Procedure and decoder for decrypting a coded video signal |
| 460. |
5,343,527
Hybrid encryption method and system for protecting reusable software
components |
| 461. |
5,343,524
Intelligent security device |
| 462. |
5,341,428
Multiple cross-check document verification system |
| 463. |
5,341,427
Algorithm independent cryptographic key management apparatus |
| 464. |
5,341,426
Cryptographic key management apparatus and method |
| 465. |
5,341,425
Methods and apparatus for uniquely encrypting data at a plurality of data
transmission sites for transmission to a reception site |
| 466. |
5,337,362
Method and apparatus for placing data onto plain paper |
| 467. |
5,337,358
Apparatus for recording a transaction including authenticating an identification
card |
| 468. |
5,336,870
System for remote purchase payment transactions and remote bill payments |
| 469. |
5,335,276
Communication system and methods for enhanced information transfer |
| 470. |
5,335,275
Television scrambler |
| 471. |
5,333,198
Digital interface circuit |
| 472. |
5,329,623
Apparatus for providing cryptographic support in a network |
| 473. |
5,325,434
Method for authenticating communications participants, system for application
of the method and first communications participant and second communication
participant for application in the system |
| 474. |
5,325,433
encryption communication system |
| 475. |
5,325,432
Method for updating encryption key information in communication units |
| 476. |
5,325,430
encryption apparatus for computer device |
| 477. |
5,325,419
Wireless digital personal communications system having voice/data/image two-way
calling and intercell hand-off |
| 478. |
5,323,465
Access control |
| 479. |
5,323,464
Commercial data masking |
| 480. |
5,321,755
Information-encrypting device and method |
| 481. |
5,321,752
Method of and apparatus for encryption and decryption of communication data |
| 482. |
5,321,751
Method and apparatus for credit card verification |
| 483. |
5,321,749
encryption device |
| 484. |
5,319,710
Method and means for combining and managing personal verification and message
authentication encrytions for network transmission |
| 485. |
5,319,705
Method and system for multimedia access control enablement |
| 486. |
D347,630
encryption cartridge |
| 487. |
5,317,639
Non-linear block substitution devices derived by constructive corruption |
| 488. |
5,317,638
Performance enhancement for ANSI X3.92 data encryption algorithm standard |
| 489. |
5,317,636
Method and apparatus for securing credit card transactions |
| 490. |
5,315,656
System for protecting documents or objects enclosed in a tamper-proof
container |
| 491. |
5,315,655
Method and apparatus for encoding data objects on a computer system |
| 492. |
5,315,423
Wavelength multiplexed two dimensional image transmission through single
mode optical fiber |
| 493. |
5,313,530
Calculating apparatus and method of encrypting/decrypting communication data
by using the same |
| 494. |
5,313,521
Key distribution protocol for file transfer in the local area network |
| 495. |
5,311,595
Method of transferring data, between computer systems using electronic
cards |
| 496. |
5,310,999
Secure toll collection system for moving vehicles |
| 497. |
5,307,414
encryption template |
| 498. |
5,307,411
Means for identification and exchange of encryption keys |
| 499. |
5,307,409
Apparatus and method for fault detection on redundant signal lines via
encryption |
| 500. |
5,307,370
Secure cordless radio-telephone Apr. 26, 1994 |