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1. WO2000044128 - SIMPLIFIED ADDRESSING FOR PRIVATE COMMUNICATIONS

Publication Number WO/2000/044128
Publication Date 27.07.2000
International Application No. PCT/SG2000/000001
International Filing Date 11.01.2000
Chapter 2 Demand Filed 16.06.2000
IPC
G06F 1/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/-G06F13/82
H04L 9/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
08Key distribution
H04L 9/30 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
28using particular encryption algorithm
30Public key, i.e. encryption algorithm being computationally infeasible to invert and users' encryption keys not requiring secrecy
H04L 29/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
CPC
G06F 2211/008
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
2211Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
007Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
008Public Key, Asymmetric Key, Asymmetric Encryption
H04L 63/0442
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
04for providing a confidential data exchange among entities communicating through data packet networks
0428wherein the data content is protected, e.g. by encrypting or encapsulating the payload
0442wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
H04L 63/062
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
06for supporting key management in a packet data network
062for key distribution, e.g. centrally by trusted party
H04L 63/0823
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
08for supporting authentication of entities communicating through a packet data network
0823using certificates
H04L 9/0894
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0894Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
Applicants
  • PRIVATE EXPRESS TECHNOLOGIES PTE. LTD. [SG/SG]; 21 Science Park Road #03-28 The Aquarius Singapore Science Park II Singapore 117628, SG
Inventors
  • TOH, Eng-Whatt; SG
  • SIM, Peng-Toh; SG
Agents
  • HENRY GOH (S) PTE. LTD.; P.O. Box 183 Toa Payoh Central Singapore 913107, SG
Priority Data
09/332,35810.06.1999US
60/115,62612.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SIMPLIFIED ADDRESSING FOR PRIVATE COMMUNICATIONS
(FR) ADRESSAGE SIMPLIFIE POUR COMMUNICATIONS PRIVEES
Abstract
(EN)
A system for securely transmitting an information package (10) to an addressee via a network (108) includes a directory interface (110) adapted to check a directory (112) to determine whether the addressee has a public key; an escrow key manager (116), coupled to the directory interface (110), adapted to provide an escrow encryption key for encrypting the package (10); an encryption module (114), coupled to the escrow key manager (116), adapted to encrypt the package (10) with the escrow encryption key; a computer-readable medium (118), coupled to the encryption module (114), adapted to store the package (10) in escrow for the addressee; a notification module (120), coupled to the computer-readable medium (118), adapted to send a notification to the addressee via the network (108); a key registration module (124), coupled to the notification module (120), adapted to issue, in response to the addressee acknowledging the notification, new public and private keys to the addressee; and a transmission module (122), coupled to the key registration module (124) and to the computer-readable medium (118), adapted to transmit the package (10) to the addressee via the network (108).
(FR)
Cette invention se rapporte à un système servant à transmettre en mode sécurisé un paquet d'informations (10) à un destinataire via un réseau (108) et comprenant à cet effet une interface de répertoire (110) destinée à vérifier un répertoire (112) pour déterminer si le destinataire possède une clé publique; un gestionnaire de clé entiercée (116), couplé à l'interface de répertoire (110) et destiné à fournir une clé de cryptage entiercée pour le cryptage du paquet (10); un module de cryptage (114), couplé au gestionnaire de clé entiercée (116) et destiné à crypter le paquet (110) à l'aide de la clé de cryptage entiercée; un support lisible par ordinateur (118), couplé au module de cryptage (114) et destiné à stocker le paquet (10) en mode entiercé pour le destinataire; un module de notification (120) couplé au support lisible par ordinateur (118) et destiné à envoyer une notification au destinataire via le réseau (118); un module d'enregistrement de clé (124), couplé au module de notification (120) et destiné à émettre, en réponse au destinataire accusant réception de la notification, de nouvelles clés publiques et privées à l'intention du destinataire; et un module de transmission (122) couplé au module d'enregistrement de clé (124) et au support lisible par ordinateur (118) et destiné à transmettre le paquet (110) au destinataire via le réseau (108).
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