| # BLS383 curve constants |
| |
| from constants import * |
| |
| SHA = 'sha256' # hash type to use with this curve |
| EFS = 48 # Elliptic curve Field Size in bytes |
| CurveType = WEIERSTRASS |
| |
| SexticTwist = M_TYPE |
| SignOfX = POSITIVEX |
| PairingFriendly = BLS |
| |
| x = 0x10008000001001200 |
| |
| if SignOfX == NEGATIVEX: |
| p = (x**6 + 2 * x**5 - 2 * x**3 - x + 1) // 3 |
| t = -x + 1 |
| else: |
| p = (x**6 - 2 * x**5 + 2 * x**3 + x + 1) // 3 |
| t = x + 1 |
| |
| r = x * x * x * x - x * x + 1 |
| |
| # elliptic curve |
| A = 0 |
| B = 15 |
| |
| # generator point on G1 |
| Gx = 0x41FCBA55B979ECE4E3835F4052DDB050F31D9F76B081F42C2F87BAD84AF1E3445C55DBF083F4770478C4773908734573 |
| Gy = 0x68F167274CFB300024AE9CDC31C46D99D0DADC66BB6449107530A94ADEB4D2DDE57D49EC87F98FD212D165E8003F224 |
| |
| # Frobenius constant |
| Fra = 0x22ACD5BF027F68BC338B9FC2C11B52F10E4C6CD23FBA1A868256744AE550D8C8A3693480FE6773E01852D72D3311DAC1 |
| Frb = 0x32B880D6622C05F96CE20E015ECF3F939260D95AB3AB8A8B29DB43B684104C2BD7230AA88BFD114BC1E446375298D5EA |
| |
| # Generator point on G2 |
| Pxa = 0x634D22407EC03E8C07990967CB1E746432501C852D5725BD47F1C90F562572EE81FDAB6795D1D3E143CB3B62D7F2D86 |
| Pxb = 0x300D7800600164BAF37A7717288361DD24F498ED9D05CC89DFD98BA88E92D5D75B54AB28D57FE60DEFD9E41EC452DE15 |
| Pya = 0x33792CF93D225347C949D8573FE6347B6E990ED673C99B3E689783ACA913A2E75B49EDE4F20D61965C68F0BB9408CB41 |
| Pyb = 0x20E5247DD2CD8C6B24EE7BA7D15A7AE001CE0D446B3EFA8F7AF0B2F449F7BC98B0143CB0DE6224863AD846437F479093 |
