The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2004
Filed:
Jul. 13, 1999
Philip Douglas MacKenzie, Maplewood, NJ (US);
Ram Swaminathan, New Providence, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A password-only mutual network authentication protocol and key exchange protocol using a public key encryption scheme in which a server generates a public key/secret key pair and transmits the public key to a client. The client determines whether the public key was chosen in an acceptable manner, and if so, continues with the protocol. Otherwise, the client rejects authentication. If the protocol is continued, in one embodiment the client generates a parameterp as a function of the public key and a password (or, in an alternate embodiment, as a function of the public key and a function of a password). If the public key space mapping function F applied to p, F (p), is an element of the public key message space, then the protocol continues. If F (p) is not an element of the public key message space, then the client determines to reject authentication, but continues with the protocol so that the server does not gain any information about the password. If the client determines to reject authentication, it will terminate the protocol at a later step at which time the termination of the protocol cannot leak any sensitive information. If both the client and the server accept authentication, then session keys are generated for subsequent secure communication between the client and server. Specific embodiments are disclosed in which RSA is used as the public key encryption scheme.