Method and system for authenticating a message sender using...

Details Method and system for authenticating a message sender using... Method and system for authenticating a message sender using...

2006-01-10

2006-01-10

Sheikh, Ayaz (Department: 2136)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S179000, C713S180000, C713S152000, C709S217000, C709S227000

Reexamination Certificate

active

06986049

ABSTRACT:
A method and system is directed to providing authentication of a message, such as email, and the like, by combining Public Key encryption and the Internet Domain Name System (the “DNS”). A domain owner may validate that an email originates from an authorized sender within their domain by using a private key component to digitally sign email outbound from its domain. Employing a public key component, along with a selector, an email recipient may check the validity of the signature, and thus determine that the email originated from a sender authorized by the domain owner. In one embodiment, the public key component used to verify an email signature may be “advertised” or otherwise made available via a TXT record in the DNS.

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