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:
Dec. 03, 2002
Filed:
Aug. 16, 2000
Daniel E. Geer, Jr., Cambridge, MA (US);
Henry R. Tumblin, Malden, MA (US);
Open Market, Inc., Cambridge, MA (US);
Abstract
A system for creating a log of a conversation includes a convener computer and a plurality of conversation computers interconnected by a computer network. The system includes an arbiter computer and a plurality of conversation computers interconnected by a computer network. The arbiter computer creates a public key pair comprising a new public key and a new private key, and causes the new public key to be transmitted to the conversation computers. The conversation computers receive the public key and transmit messages during the conversation. The arbiter computer uses the new private key to encrypt messages transmitted by at least some of the conversation computers during a conversation among the conversation computers, and to store the encrypted messages in a message log. The conversation computers cause messages in the message log to be decrypted using the new public key.