| # NIST256 curve constants |
| |
| from constants import * |
| |
| SHA = 'sha256' # hash type to use with this curve |
| EFS = 32 # elliptic curve field size in bytes |
| CurveType = WEIERSTRASS |
| |
| # field modulus |
| p = 115792089210356248762697446949407573530086143415290314195533631308867097853951 |
| r = 115792089210356248762697446949407573529996955224135760342422259061068512044369 # group order |
| |
| # elliptic curve |
| A = -3 |
| B = 0x5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b |
| |
| # generator point |
| Gx = 0x6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296 |
| Gy = 0x4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5 |
