| # C25519 curve constants | |
| from constants import * | |
| SHA = 'sha256' # hash type to use with this curve | |
| EFS = 32 # elliptic curve field size in bytes | |
| CurveType = MONTGOMERY | |
| # field modulus | |
| p = 2**255 - 19 | |
| r = 2**252 + 27742317777372353535851937790883648493 | |
| # elliptic curve | |
| A = 486662 | |
| B = 0 | |
| # generator point | |
| Gx = 9 | |
| Gy = 0 |