Curve from https://eprint.iacr.org/2014/130.pdf. No generator present.

Parameters

SAGE

p = 0xffa7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
K = GF(p)
a = K(0xffa7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc)
b = K(0x14e6a)
E = EllipticCurve(K, (a, b))
# No generator defined
E.set_order(0xffa7fffffffffffffffffffffffffffffc517513e6e5074b9d10c5e1a79857eb * 0x01)

PARI/GP

p = 0xffa7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
a = Mod(0xffa7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc, p)
b = Mod(0x14e6a, p)
E = ellinit([a, b])
E[16][1] = 0xffa7fffffffffffffffffffffffffffffc517513e6e5074b9d10c5e1a79857eb * 0x01
\\ No generator defined

JSON

{
  "name": "w-256-mont",
  "desc": "Curve from https://eprint.iacr.org/2014/130.pdf. No generator present.",
  "form": "Weierstrass",
  "field": {
    "type": "Prime",
    "p": "0xffa7ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
    "bits": 256
  },
  "params": {
    "a": {
      "raw": "0xffa7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc"
    },
    "b": {
      "raw": "0x14e6a"
    }
  },
  "order": "0xffa7fffffffffffffffffffffffffffffc517513e6e5074b9d10c5e1a79857eb",
  "cofactor": "0x01"
}