Threshold cryptosystem, corresponding electronic devices and computer program products
US-2015381350-A1 · Dec 31, 2015 · US
Method for conversion of a first encryption into a second encryption
US9002000B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9002000-B2 |
| Application number | US-201013386048-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 21, 2010 |
| Priority date | Jul 23, 2009 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
Official abstract text for this publication.
A method for converting, by means of a conversion entity, a first digit into a second digit, the first cipher corresponding to the result of a symmetric probabilistic encryption of an plain message element using a first secret matrix parameterized by a random vector, the second digit corresponding to the result of a symmetric probabilistic encryption of the plain message element using a second secret matrix that is parameterized by the random vector, characterized in that the method includes a step of: calculating the second digit by encrypting the first digit using a secret conversion matrix which is a function of the first and second secret matrices, and which is parameterized by the random vector.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method comprising the steps: conversion by a conversion device of a first ciphertext into a second ciphertext, the first ciphertext corresponding to a result of a symmetrical probabilistic encryption of a plaintext message element by means of a product of a first secret matrix and of a random vector, the second ciphertext corresponding to a result of a symmetrical probabilistic encryption of the plaintext message element by means of a product of a se…
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Electricity · mapped topic
Electricity · mapped topic
- H04L9/06Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9002000B2 cover?
- A method for converting, by means of a conversion entity, a first digit into a second digit, the first cipher corresponding to the result of a symmetric probabilistic encryption of an plain message element using a first secret matrix parameterized by a random vector, the second digit corresponding to the result of a symmetric probabilistic encryption of the plain message element using a second …
- Who is the assignee on this patent?
- Seurin Yannick, Gilbert Henri, Orange
- What technology area does this patent fall under?
- Primary CPC classification H04L9/06. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 07 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).