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 ${\displaystyle 394\cdot 10^{113}}$ . 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 ${\displaystyle y^{2}=x^{3}-3x+b}$ where ${\displaystyle b}$ is given by a certain 384 bit number.