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:
Feb. 26, 2002
Filed:
Sep. 29, 1998
Minoru Sasaki, Amenityhill-Honatsugi 717, 1620-1, Iiyama, Atsugi-shi, Kanagawa 243-0213, JP;
Other;
Abstract
A key used for deciphering ciphertext is safely transmitted, to establish simple encryption communication. A transmitter and a receiver are connected through a network such that they can communicate with each other. In the transmitter, plaintext is enciphered using a common key. Ciphertext, together with a key generation program in a public-key cryptosystem, is transmitted from the transmitter to the receiver. In the receiver, a pair of a public key and a secret key is generated in accordance with the key generation program, the public key is transmitted to the transmitter, and the secret key is held in the receiver. In the transmitter, the common key is enciphered using the public key transmitted from the receiver. An enciphered common key transmitted to the receiver is deciphered using the held secret key. The ciphertext is deciphered using the deciphered common key.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile