2.1.3 Elliptic Curve Digital Signature Algorithm (ECDSA)
ECC204 computes the Elliptic Curve signatures according to the algorithm documented in:
- ANSI X9.62-2005 www.ansi.org/
- FIPS 186-5 specification nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-5.pdf