Message routing

• US 8,924,485 B2
• Filed: 08/20/2005
• Issued: 12/30/2014
• Est. Priority Date: 03/09/1999
• Status: Active Grant

• Current Assignee: Michael Hamilton
• Original Assignee: Michael Hamilton
• Inventors: Hamilton, Michael, Boland, Walter E., Ricart, Glenn
• Primary Examiner(s): SHAW, PETER C
• Application Number:
  US11/208,106
• Publication Number:
  US 20060031364A1
• Time in Patent Office: 3,419 Days
• Field of Search: 709203-206, 370/352, 713/154
• US Class Current: 709/206
• CPC Class Codes: H04L 2101/604 Address structures or formats
• CPC Class Codes: H04L 2101/65 Telephone numbers
• CPC Class Codes: H04L 2209/24 Key scheduling, i.e. generating round keys or sub-keys for block encryption
• CPC Class Codes: H04L 51/066 Format adaptation, e.g. format conversion or compression
• CPC Class Codes: H04L 51/08 Annexed information, e.g. attachments
• CPC Class Codes: H04L 51/214 using selective forwarding
• CPC Class Codes: H04L 51/48 Message addressing, e.g. address format or anonymous messages, aliases
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04L 61/106 across networks, e.g. mapping telephone numbers to data network addresses
• CPC Class Codes: H04L 63/061 for key exchange, e.g. in peer-to-peer networks cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 63/0861 using biometrical features, e.g. fingerprint, retina-scan cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231
• CPC Class Codes: H04L 9/30 Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
• CPC Class Codes: H04M 7/0054 where the data service is an electronic mail service

Abstract

Methods, devices, signals, and systems are provided in a message routing architecture which provides improved capabilities for integrating “digital” communication through email messages with “analog” communication through voice and/or fax or pager messages. Email can be addressed using nothing more than a standard telephone or fax number. If the registered owner of the telephone or fax number has a corresponding email address, then the invention converts the telephone or fax number to the email address for delivery and uses standard email delivery systems to deliver the message. If no conventional delivery email address is known, or if the message sender or recipient specify multiple delivery modes, then the email message content is transformed into voice, pager and/or fax content and delivered to the recipient using the telephone or fax number which was specified as the email address. Familiar telecommunications services such as call forwarding and selective call blocking can also be used with messages that originate as email. The invention also supports use of telecommunications numbers as indexes into databases which contain public key certificates, to make it unnecessary for a proposed message recipient to provide its public key expressly in advance to each particular proposed message originator.

Claims

1. A method for electronic communication, the method comprising:

electronically getting a telecommunications number of a proposed recipient of an email message, the email message also having at least one message originator;

automatically and electronically submitting the telecommunications number for use as an index into a database of public keys, the database of public keys configured to include any one or more of the following;

an X.509 database, an X.500 database, a database built on-the-fly by one or more individual message originators, a text file maintained by a client email program, a text file maintained by a client browser, a relational database, a hierarchical object-oriented database, a database built by an Internet service provider, a database built by a telecommunications service provider, a database maintained by a regional telephone company, a database maintained by a competitive local exchange carrier (CLEC), a database maintained by an incumbent local exchange carrier (ILEC), a database maintained on an email gateway, a database located on a client machine, a database located on a server machine, a database located on a web site, or a database located on within a telecommunications number detector;

automatically and electronically obtaining from the database of public keys a public key which corresponds to the telecommunications number; and

automatically and electronically providing the public key for use in at least one of the following;

encryption, authentication, a secure transaction;

wherein the method provides the public key which corresponds to the telecommunications number of the proposed recipient of the email message without requiring a negotiation between the proposed recipient and the message originator(s) to transfer the public key.

2. The electronic communication method of claim 1, wherein the method automatically and electronically submits the telecommunications number by submitting the telecommunications number for use as a pointer into the database of public keys.

3. The electronic communication method of claim 1, wherein the method electronically gets a telecommunications number by getting a telecommunications number which is an addressing index of the proposed recipient of the email message.

4. The electronic communication method of claim 1, wherein the method electronically gets a telecommunications number by getting a telecommunications number which is an email address of the proposed recipient of the email message.

5. The electronic communication method of claim 1, wherein automatically and electronically obtaining from the database of public keys a public key which corresponds to the telecommunications number includes automatically and electronically obtaining from the database of public keys a public key certificate which corresponds to the telecommunications number.

6. The electronic communication method of claim 5, wherein the method includes automatically and electronically obtaining from the database of public keys an X.509 public key certificate which corresponds to the telecommunications number.

7. The electronic communication method of claim 6, wherein the method includes automatically and electronically obtaining from the database of public keys an X.509 public key certificate which corresponds to the telecommunications number in that the telecommunications number is embedded in a serial number of the X.509 public key certificate.

8. The electronic communication method of claim 1, further comprising authenticating telecommunications numbers before using them as indexes into the database of public keys.