P-384

P-384 is the elliptic curve currently specified in NSA Suite B Cryptography for the ECDSA and ECDH algorithms. It is a 384 bit curve with characteristic approximately $394\cdot 10^{113}$ . In binary, this mod is given by 111...1100...0011...11. That is, 288 1s followed by 64 0s followed by 32 1s. The curve is given by the equation $y^{2}=x^{3}-3x+b$ where $b$ is given by a certain 384 bit number.

External links

FIPS 186-4 standards where the curve is defined
Commercial National Security Algorithm (CNSA) Suite Factsheet

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