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.

Date of Patent:
Feb. 01, 2011

Filed:

Feb. 20, 2007
Applicants:

Yunho Lee, Gyeonggi-do, KR;

Kwangwoo Lee, Gyeonggi-do, KR;

Seungjoo Kim, Gyeonggi-do, KR;

Dongho Won, Gyeonggi-do, KR;

Inventors:

Yunho Lee, Gyeonggi-do, KR;

Kwangwoo Lee, Gyeonggi-do, KR;

Seungjoo Kim, Gyeonggi-do, KR;

Dongho Won, Gyeonggi-do, KR;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06Q 20/00 (2006.01); G07C 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A verification method for encrypter operation and an electronic voting verification system using the same, which can verify the operation of the encrypter without having to execute corresponding decryption. In the verification method, the encrypter creates a plurality of ciphertexts corresponding to the plain text and presenting the ciphertexts to a user. The user selects one of the ciphertexts, the encrypter dispenses a certificate where information used by the encrypter during encryption is recorded, in response to the ciphertexts which are not selected by the user; and the user creates a ciphertext in person and verifies whether or not the user-created ciphertext is identical with the user-selected ciphertext. Then, the user can verify the encryption results inside and outside a polling booth.


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