| Patents for H04L 9 - Arrangements for secret or secure communication (111,914) |
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| 08/07/2001 | US6272225 Key recovery condition encryption and decryption apparatuses |
| 08/07/2001 | US6272224 Method and apparatus for quantum distribution of an encryption key |
| 08/07/2001 | US6272221 Encryption apparatus and computor-readable recording medium containing program for realizing the same |
| 08/07/2001 | CA2212664C Secret communication and authentication scheme based on public key cryptosystem using n-adic expansion |
| 08/02/2001 | WO2001056287A2 Method and system for transmission of decrypting information |
| 08/02/2001 | WO2001056222A1 Communication method with encryption key escrow and recovery |
| 08/02/2001 | WO2001056221A2 Block encryption method and schemes for data confidentiality and integrity protection |
| 08/02/2001 | WO2001055858A1 Data recording/reproducing device and saved data processing method, and program providing medium |
| 08/02/2001 | WO2001055842A1 Device authentication apparatus and method, and recorded medium on which device authentication program is recorded |
| 08/02/2001 | WO2001055836A1 Random number generator |
| 08/02/2001 | WO2001055821A2 Microprocessor resistant to power analysis |
| 08/02/2001 | US20010011353 Secure module with microprocessor and co-processor |
| 08/02/2001 | US20010011351 Anonymous participation authority management system |
| 08/02/2001 | US20010011350 Apparatus and method for electronic document certification and verification |
| 08/02/2001 | US20010011349 System and method for encrypting a data session between a client and a server |
| 08/02/2001 | US20010011276 Scanner enhanced remote control unit and system for automatically linking to on-line resources |
| 08/02/2001 | US20010011255 Reliance management for electronic transaction system |
| 08/02/2001 | US20010011251 Method and apparatus for contents information |
| 08/02/2001 | US20010011233 Coding system and method for linking physical items and corresponding electronic online information to the physical items |
| 08/02/2001 | US20010010730 Steganographic messaging through imagery |
| 08/02/2001 | US20010010724 Secret key generating method, encryption method, cryptographic communication method and cryptographic communication system |
| 08/02/2001 | US20010010723 Key recovery process used for strong encryption of messages |
| 08/02/2001 | US20010010722 Encryption and decryption method and apparatus using a work key which is generated by executing a decryption algorithm |
| 08/02/2001 | US20010010721 Common key generating method, common key generating apparatus, encryption method, cryptographic communication method and cryptographic communication system |
| 08/02/2001 | US20010010720 Multiple signature authentication in conditional access systems |
| 08/02/2001 | DE10003057A1 System for testing access authorising cards with several characteristic signs |
| 08/02/2001 | CA2365345A1 Data recording/reproducing device and saved data processing method, and program providing medium |
| 08/01/2001 | EP1120967A2 Digital contents distribution system, digital contents distribution method, data conversion server, information processor and information processing method, system for property right protection |
| 08/01/2001 | EP1120934A2 Method and apparatus for key distribution using a key base |
| 08/01/2001 | EP1120933A2 A method and apparatus for designing cipher logic, and a computer product |
| 08/01/2001 | EP1120726A1 Information processing device and method, and providing medium |
| 08/01/2001 | EP1120715A1 Data providing system, device, and method |
| 08/01/2001 | EP1120662A1 Method for testing an integrated circuit having confidential software or hardware elements |
| 08/01/2001 | EP1119942A1 Method for establishing a common cryptographic key for n subscribers |
| 08/01/2001 | EP1119941A1 Method for establishing a common key between an exchange and a group of subscribers |
| 08/01/2001 | EP1119940A1 Countermeasure method in an electronic component using a secret key cryptographic algorithm |
| 08/01/2001 | EP1119939A1 Countermeasure method in an electronic component using a secret key cryptographic algorithm |
| 08/01/2001 | EP1119817A1 Cloning protection scheme for a digital information playback device |
| 08/01/2001 | CN1306714A Technique for producing privately authenticatable cryptographic signatures and for using such signature in conjunction with product copy |
| 08/01/2001 | CN1306713A Signature verification and authentication method |
| 08/01/2001 | CN1306712A Method and system of dynamic transformation of encrypted material |
| 08/01/2001 | CN1306663A Key distribution via memory device |
| 08/01/2001 | CN1306359A Transmitting and recording of content information, decording method and device of content information |
| 07/31/2001 | US6269446 Authenticating images from digital cameras |
| 07/31/2001 | US6269445 Electronic shopping method, electronic shopping system and document authenticating method relating thereto |
| 07/31/2001 | US6269369 Networked personal contact manager |
| 07/31/2001 | US6269348 Tokenless biometric electronic debit and credit transactions |
| 07/31/2001 | US6269164 Method of and system for encrypting messages |
| 07/31/2001 | US6269163 Enhanced block ciphers with data-dependent rotations |
| 07/31/2001 | CA2219270C Encryption for modulated backscatter systems |
| 07/26/2001 | WO2001054410A2 Flexible content distribution method and apparatus |
| 07/26/2001 | WO2001054346A1 Method for issuing an electronic identity |
| 07/26/2001 | WO2001054343A2 Method and apparatus for achieving crypto-syncronization in a packet data communication system |
| 07/26/2001 | WO2001054099A1 Data authentication system |
| 07/26/2001 | WO2001053909A2 Method and systems for data security |
| 07/26/2001 | WO2001053908A2 Method and systems for identifying the existence of one or more unknown programs in a system |
| 07/26/2001 | US20010010080 Method for testing an integrated circuit including hardware and/or software parts having a confidential nature |
| 07/26/2001 | US20010010076 Security protocol |
| 07/26/2001 | US20010010045 System for controlling the distribution and use of digital works using digital tickets |
| 07/26/2001 | US20010009583 Secret key registration method, secret key register, secret key issuing method, cryptographic communication method and cryptographic communication system |
| 07/26/2001 | US20010009580 Information encryption device and encryption method |
| 07/26/2001 | US20010009579 Cryptosystem-related method and apparatus |
| 07/26/2001 | CA2397777A1 Flexible content distribution method and apparatus |
| 07/26/2001 | CA2365236A1 Data authentication system |
| 07/25/2001 | EP1119133A2 Method and apparatus for secure data transmission via network |
| 07/25/2001 | EP1119132A2 Broadcasting encrypted messages using session keys |
| 07/25/2001 | EP1119131A2 Method and apparatus for encrypting contents information |
| 07/25/2001 | EP1119130A2 Cryptosystem-related method and apparatus |
| 07/25/2001 | EP1119129A2 Method and apparatus for decrypting contents information |
| 07/25/2001 | EP1118216A1 Key exchange via a portable remote control device |
| 07/25/2001 | EP1118184A1 Updating a revocation list to foil an adversary |
| 07/25/2001 | CN1305674A Recording of encrypted digital data |
| 07/25/2001 | CN1305606A Generator for producing photon number state |
| 07/25/2001 | CN1305605A Single-photon-emission apparatus |
| 07/25/2001 | CN1305285A Data encryption transmission and exchange method in self-cycle balance state and soft-closed management system |
| 07/24/2001 | US6266775 Method and apparatus for displaying information and information recording medium having information displaying means |
| 07/24/2001 | US6266772 Authentication system for electronic data objects to be opened to public, and storage medium |
| 07/24/2001 | US6266771 Probabilistic signature scheme |
| 07/24/2001 | US6266680 Method for electronically checking authenticity of document |
| 07/24/2001 | US6266421 Key recovery system and key recovery method |
| 07/24/2001 | US6266420 Method and apparatus for secure group communications |
| 07/24/2001 | US6266418 Encryption and authentication methods and apparatus for securing telephone communications |
| 07/24/2001 | US6266417 Cryptographic communication process and apparatus |
| 07/24/2001 | US6266415 Process for protecting an information item transmitted from a security element to a decoder and protection system using such a process |
| 07/24/2001 | US6266413 System and method for synchronizing one time pad encryption keys for secure communication and access control |
| 07/24/2001 | US6266412 Encrypting speech coder |
| 07/24/2001 | US6266411 Method and apparatus for multiple-iteration CMEA encryption and decryption for improved security for wireless telephone messages |
| 07/24/2001 | US6264557 Method and apparatus for securing electronic games |
| 07/19/2001 | WO2001052472A1 Method and apparatus for encryption, method and apparatus for decryption, and computer-readable medium storing program |
| 07/19/2001 | WO2001052470A2 Public key validation service |
| 07/19/2001 | WO2001016899A3 Portable terminal |
| 07/19/2001 | WO2000030285A8 Method and apparatus for secure distribution of authentication credentials to roaming users |
| 07/19/2001 | US20010009026 Device and method for authenticating user's access rights to resources |
| 07/19/2001 | US20010009015 System and method for pushing information from a host system to a mobile data communication device |
| 07/19/2001 | US20010009006 Method and apparatus for contents information |
| 07/19/2001 | US20010008558 Arbitrary function generating circuit using a simple operational element and an encryption method therefor |
| 07/19/2001 | DE19946004A1 Verifying integrity, authorship of and encoding/decoding text involves using one-time algorithm and/or symmetrical crypto algorithm dependent on one secret code |
| 07/19/2001 | CA2331476A1 Accepting and processing electronic checks authorized via a public network |
| 07/19/2001 | CA2330015A1 Performance path method and apparatus for exchanging data among systems using different data formats |
| 07/18/2001 | EP1117207A2 Public key infrastructure |