Public key generation method in elliptic curve cryptography and public key generation system executing the method
US7940936B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | May 24, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3073
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A public key generation method in Elliptic Curve Cryptography (ECC), and a public key generation system performing the method are provided. The public key generation method includes reducing a sequence length of the signed ternary τ-adic representation of the private key ‘k’ using properties of an elliptic curve, representing a reduced secret key ‘k’ in a signed ternary τ-adic representation; and computing a public key kP by multiplying the τ-adic representation of the private key ‘k’ whose sequence length is reduced on point P on the elliptic curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.