| Patents for H04L 9 - Arrangements for secret or secure communication (111,914) |
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| 09/16/1997 | US5668878 Secure cryptographic methods for electronic transfer of information |
| 09/16/1997 | US5668877 Method and apparatus for stepping pair keys in a key-management scheme |
| 09/16/1997 | US5668876 System for granting access to an electronic service |
| 09/16/1997 | US5668875 Method and apparatus for authentication in a communication system |
| 09/16/1997 | US5668872 Information processing method and system |
| 09/16/1997 | CA2200037A1 A procedure and a system for indicating the time of completion of a cryptographic procedure |
| 09/12/1997 | WO1997033404A1 Data transmission network billing method and system |
| 09/12/1997 | WO1997033403A1 Improving security of packet-mode transmission in a mobile communication system |
| 09/12/1997 | WO1997033373A1 Method , apparatus for electronic encoding and decoding |
| 09/10/1997 | EP0794640A2 Virtual authentication network for secure processors |
| 09/10/1997 | EP0794479A1 Method and apparatus for providing dynamic network file system client authentication |
| 09/10/1997 | EP0794306A2 Electronic access control and security system |
| 09/10/1997 | EP0793880A1 Data packet handling |
| 09/10/1997 | EP0793823A1 Security apparatus and method |
| 09/10/1997 | EP0598036B1 Nonlinear dynamic block substitution methods. |
| 09/10/1997 | CN1159112A Encryption method, encryption apparatus, recording method, decoding method, decoding apparatus and recording medium |
| 09/10/1997 | CN1159108A Encryption device and decryption device for information conveyed by asynchronous transfer mode cells |
| 09/09/1997 | US5666420 Electronic communication method |
| 09/09/1997 | US5666419 Encryption device and communication apparatus using same |
| 09/09/1997 | US5666416 Certificate revocation system |
| 09/09/1997 | US5666415 Method and apparatus for cryptographic authentication |
| 09/09/1997 | US5666414 Guaranteed partial key-escrow |
| 09/09/1997 | CA2197153A1 Electronic access control and security system |
| 09/04/1997 | WO1997032417A1 Process for generating a check word for a bit sequence for verifying the integrity and authenticity of the bit sequence |
| 09/03/1997 | EP0793387A2 Tv mail system |
| 09/03/1997 | EP0793367A2 Key distribution system and method |
| 09/03/1997 | EP0793366A2 Method and apparatus for encrypting data |
| 09/03/1997 | EP0719370B1 Resynchronizing transmitters to receivers for secure vehicle entry using cryptography or rolling code |
| 09/03/1997 | EP0695485A4 Fair cryptosystems and methods of use |
| 09/03/1997 | CN1158461A Data acquiring apparatus |
| 09/03/1997 | CN1158453A High effective electronic data protection method |
| 09/02/1997 | US5664017 Internationally regulated system for one to one cryptographic communications with national sovereignty without key escrow |
| 09/02/1997 | US5664016 Method of building fast MACS from hash functions |
| 09/02/1997 | US5663990 Wireless telephone distribution system with time and space diversity transmission |
| 09/02/1997 | US5663896 Broadcast key distribution apparatus and method using Chinese Remainder |
| 08/28/1997 | WO1997031450A1 Key replacement in a public key cryptosystem |
| 08/28/1997 | WO1997031449A1 Communication method using common cryptographic key |
| 08/28/1997 | WO1997031448A1 Communication method using common key |
| 08/28/1997 | WO1997016902A3 Unified end-to-end security methods and systems for operating on insecure networks |
| 08/28/1997 | DE19607017A1 Remote control device for accessing motor vehicle or controlling accessory device, such as for opening/closing garage doors |
| 08/28/1997 | CA2247509A1 Communication method using common cryptographic key |
| 08/28/1997 | CA2247478A1 Communication method using common key |
| 08/27/1997 | EP0792045A2 Method and apparatus for authentication using digital signatures |
| 08/27/1997 | EP0792044A2 Device and method for authenticating user's access rights to resources according to the Challenge-Response principle |
| 08/27/1997 | EP0792043A2 Method of sharing cryptokey |
| 08/27/1997 | EP0792042A2 Method of effecting communications using common cryptokey |
| 08/27/1997 | EP0792041A2 Method and apparatus for block encryption |
| 08/27/1997 | CN1158203A System for processing a video signal via series-connected high speed signal processing smart cards |
| 08/27/1997 | CN1158202A Safety improved access control system using intelligence card |
| 08/27/1997 | CN1158195A System and method for key escrow and data escrow encryption |
| 08/26/1997 | US5661807 Authentication system using one-time passwords |
| 08/26/1997 | US5661806 Process of combined authentication of a telecommunication terminal and of a user module |
| 08/26/1997 | US5661805 Signature verification apparatus capable of obtaining information required for a document recipient by using an apparatus's verification key alone |
| 08/26/1997 | US5661804 Trainable transceiver capable of learning variable codes |
| 08/26/1997 | US5661803 Method of token verification in a key management system |
| 08/21/1997 | WO1997030534A1 Reception apparatus for authenticated access to coded broadcast signals |
| 08/21/1997 | WO1997030424A1 Method for server-authorised service access from portable electronic microcircuit devices such as smart cards |
| 08/21/1997 | CA2246301A1 Method for server-authorised service access from portable electronic microcircuit devices such as smart cards |
| 08/20/1997 | EP0790595A1 Data conversion apparatus and data conversion method |
| 08/20/1997 | EP0789912A1 Method and apparatus for fingerprinting and authenticating various magnetic media |
| 08/20/1997 | EP0641505A4 Continuous synchronous encryption and decryption in a wireless communications system throughout handoffs. |
| 08/20/1997 | EP0637413A4 Verifying secret keys in a public-key cryptosystem. |
| 08/20/1997 | CN1157677A Biometric controlled key generation |
| 08/19/1997 | US5659618 Multi-size cryptographic key system |
| 08/19/1997 | US5659617 Method for providing location certificates |
| 08/19/1997 | US5659616 Method for securely using digital signatures in a commercial cryptographic system |
| 08/19/1997 | US5659615 Secure satellite receive-only local area network with address filter |
| 08/19/1997 | US5659613 Method and apparatus for copy protection for various recording media using a video finger print |
| 08/13/1997 | EP0788688A1 Method and apparatus for secure identification of a mobile user in a communication network |
| 08/13/1997 | EP0788641A1 Method for enabling a transaction between a terminal user and a server |
| 08/13/1997 | CN1157071A Method and apparatus for authentication in communication system |
| 08/13/1997 | CN1156931A Asynchronous multiport controlling method in single system of remote security administration system |
| 08/13/1997 | CN1035652C Method and apparatus for scrambling and descrampling of video signals |
| 08/12/1997 | US5657389 Positive identification system and method |
| 08/12/1997 | US5657388 Method and apparatus for utilizing a token for resource access |
| 08/07/1997 | WO1997028630A2 System and method for interfacing multiple electronic devices |
| 08/07/1997 | WO1997016779A3 Input security and transactions unit and process for input security and transactions involving digital information |
| 08/07/1997 | DE19604150A1 Transmission data integrity and authentication method |
| 08/06/1997 | EP0788066A2 Electronic-monetary System |
| 08/06/1997 | EP0418328B1 Card-computer moderated systems |
| 08/06/1997 | CN1156531A User authentication method and apparatus |
| 08/06/1997 | CN1156293A Communication apparatus |
| 08/05/1997 | US5655021 Method for checking data sequences |
| 08/05/1997 | US5654696 Method for transferring auxillary data using components of a secure entry system |
| 07/31/1997 | WO1997027716A1 Management of authentication keys in a mobile communication system |
| 07/31/1997 | WO1997027688A1 Asymmetrical cryptographic communication method and portable object therefor |
| 07/30/1997 | EP0786881A2 Method and system for synchronisation of encryption/decryption keys in a data communications network using marker packets |
| 07/30/1997 | EP0786178A1 Secret-key certificates |
| 07/30/1997 | CN1155799A Generation of cryptographic signatures using hash keys |
| 07/30/1997 | CN1155798A Data network security system and method |
| 07/30/1997 | CN1155797A 通信方法和装置 Communication method and apparatus |
| 07/29/1997 | US5652796 Data encryption control system |
| 07/29/1997 | US5652662 Communications apparatus wherein transmission of ciphered data is dependent upon available memory |
| 07/24/1997 | WO1997026733A1 Method for an encrypted digital watermark |
| 07/24/1997 | WO1997026730A1 Secure satellite receive-only local area network with address filter |
| 07/24/1997 | WO1997026728A2 Traceable anonymous transactions |
| 07/24/1997 | WO1997026727A2 Microchip partly or entirely surrounded by opaque sheathing |
| 07/23/1997 | EP0785693A1 Protocol for local routing of incoming calls from the public switched telephone network to a cellular network |
| 07/23/1997 | EP0785656A2 Data acquiring apparatus |
| 07/23/1997 | EP0785518A2 Electronic-monetary system |