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Overview[]

The Elliptic Curve Digital Signature Algorithm (ECDSA) is specified in ANS X9.62-1998. FIPS 186-3 approves the use of ECDSA, but specifies additional requirements for use by the Federal Government.

ECDSA requires that the private/public key pairs used for digital signature generation and verification be generated with respect to a particular set of domain parameters. These domain parameters may be common to a group of users and may be public. Domain parameters may remain fixed for an extended time period.

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