Determination of a Modular Inverse
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United States of America Patent
Stats
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N/A
Issued Date -
Aug 21, 2008
app pub date -
May 19, 2006
filing date -
May 25, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In side-channel attack-resistant encoding methods, a return value (r) is determined as the modular inverse of an input value (a), by a module (M). A resistance to side-channel attack can be achieved with minimal restrictions on implementation on determination of the modular inverse with minimal technical complexity. To this end, in a first sub-step, a first product (d) of the input value (a) and a random number is generated (c), in a second sub-step, the modular inverse (e) of the first product (d) is determined by the module (M), in a third sub-step, a second product (b) of the random number (c) is determined by the modular inverse (e) and in a fourth sub-step the return value (r) is set to the same as the second product (b).
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
DE | A1 | DE102005024609 | May 25, 2005 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
DOC. LAID OPEN (FIRST PUBLICATION) | Bestimmung einer modularen Inversen | Nov 30, 2006 | |||
BR | A2 | BRPI0611402 | May 19, 2006 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION FOR A PATENT OF INVENTION / PIPELINE PATENT PUBLISHED WITHOUT SEARCH REPORT | determinação de um inverso modular | Sep 08, 2010 | |||
CN | A | CN101180606 | May 19, 2006 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
UNEXAMINED APPLICATION FOR A PATENT FOR INV. | Determination of a modular inverse | May 14, 2008 | |||
WO | A1 | WO2006125754 | May 19, 2006 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | BESTIMMUNG EINER MODULAREN INVERSEN | Nov 30, 2006 | |||
JP | A | JP2008542802 | May 19, 2006 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
Published unexamined patent application | BESTIMMUNG EINER MODULAREN INVERSEN | Nov 27, 2008 | |||
EP | B1 | EP1891512 | May 19, 2006 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
Patent | BESTIMMUNG EINER MODULAREN INVERSEN | Nov 18, 2009 | |||
RU | A | RU2007148503 | May 19, 2006 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
LAID OPEN PATENT APPLICATION | ОПРЕДЕЛЕНИЕ МОДУЛЬНОЙ ИНВЕРСИИ | Jul 10, 2009 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SIEMENS VDO AUTOMOTIVE AG | 93055 REGENSBURG |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Meyer, Bernd | Munchen, DE | 106 | 569 |
# of filed Patents : 106 Total Citations : 569 |
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Patent Citation Ranking
- 4 Citation Count
- G06F Class
- 1.31 % this patent is cited more than
- 17 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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