BADA55 curve from the https://bada55.cr.yp.to/bada55-20150927.pdf

Parameters

SAGE

p = 0xffffffffffffffffffffffffffffffff000000000000000000000001
K = GF(p)
a = K(0x7144ba12ce8a0c3befa053edbada555a42391fc64f052376e041c7d4af23195ebd8d83625321d452e8a0c3bb0a048a26115704e45dceb346a9f4bd9741d14d49)
b = K(0x5c32ec7fc48ce1802d9b70dbc3fa574eaf015fce4e99b43ebe3468d6efb2276ba3669aff6ffc0f4c6ae4ae2e5d74c3c0af97dce17147688dda89e734b56944a2)
E = EllipticCurve(K, (a, b))
# No generator defined
E.set_order(0xffffffffffffffffffffffffffff473fa5d3e9bf40a95a8d3f014add * 0x01)

PARI/GP

p = 0xffffffffffffffffffffffffffffffff000000000000000000000001
a = Mod(0x7144ba12ce8a0c3befa053edbada555a42391fc64f052376e041c7d4af23195ebd8d83625321d452e8a0c3bb0a048a26115704e45dceb346a9f4bd9741d14d49, p)
b = Mod(0x5c32ec7fc48ce1802d9b70dbc3fa574eaf015fce4e99b43ebe3468d6efb2276ba3669aff6ffc0f4c6ae4ae2e5d74c3c0af97dce17147688dda89e734b56944a2, p)
E = ellinit([a, b])
E[16][1] = 0xffffffffffffffffffffffffffff473fa5d3e9bf40a95a8d3f014add * 0x01
\\ No generator defined

JSON

{
  "name": "BADA55-VPR-224",
  "desc": "BADA55 curve from the https://bada55.cr.yp.to/bada55-20150927.pdf",
  "form": "Weierstrass",
  "field": {
    "type": "Prime",
    "p": "0xffffffffffffffffffffffffffffffff000000000000000000000001",
    "bits": 224
  },
  "params": {
    "a": {
      "raw": "0x7144ba12ce8a0c3befa053edbada555a42391fc64f052376e041c7d4af23195ebd8d83625321d452e8a0c3bb0a048a26115704e45dceb346a9f4bd9741d14d49"
    },
    "b": {
      "raw": "0x5c32ec7fc48ce1802d9b70dbc3fa574eaf015fce4e99b43ebe3468d6efb2276ba3669aff6ffc0f4c6ae4ae2e5d74c3c0af97dce17147688dda89e734b56944a2"
    }
  },
  "order": "0xffffffffffffffffffffffffffff473fa5d3e9bf40a95a8d3f014add",
  "cofactor": "0x01"
}