Curve from https://cr.yp.to/talks/2013.09.16/slides-djb-20130916-a4.pdf

Parameters

SAGE

p = 0x3fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffef
K = GF(p)
a = K(0x01)
d = K(0xe21)
E = EllipticCurve(K, (K(-1/48) * (a^2 + 14*a*d + d^2),K(1/864) * (a + d) * (-a^2 + 34*a*d - d^2)))
def to_weierstrass(a, d, x, y):
	return ((5*a + a*y - 5*d*y - d)/(12 - 12*y), (a + a*y - d*y -d)/(4*x - 4*x*y))
def to_twistededwards(a, d, u, v):
	y = (5*a - 12*u - d)/(-12*u - a + 5*d)
	x = (a + a*y - d*y -d)/(4*v - 4*v*y)
	return (x, y)
G = E(*to_weierstrass(a, d, K(0x1a334905141443300218c0631c326e5fcd46369f44c03ec7f57ff35498a4ab4d6d6ba111301a73faa8537c64c4fd3812f3cbc595), K(0x22)))
E.set_order(0x7ffffffffffffffffffffffffffffffffffffffffffffffffffeb3cc92414cf706022b36f1c0338ad63cf181b0e71a5e106af79 * 0x08)
# This curve is a Weierstrass curve (SAGE does not support TwistedEdwards curves) birationally equivalent to the intended curve.
# You can use the to_weierstrass and to_twistededwards functions to convert the points.

JSON

{
  "name": "Curve41417",
  "desc": "Curve from https://cr.yp.to/talks/2013.09.16/slides-djb-20130916-a4.pdf",
  "form": "TwistedEdwards",
  "field": {
    "type": "Prime",
    "p": "0x3fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffef",
    "bits": 414
  },
  "params": {
    "a": {
      "raw": "0x01"
    },
    "d": {
      "raw": "0xe21"
    }
  },
  "generator": {
    "x": {
      "raw": "0x1a334905141443300218c0631c326e5fcd46369f44c03ec7f57ff35498a4ab4d6d6ba111301a73faa8537c64c4fd3812f3cbc595"
    },
    "y": {
      "raw": "0x22"
    }
  },
  "order": "0x7ffffffffffffffffffffffffffffffffffffffffffffffffffeb3cc92414cf706022b36f1c0338ad63cf181b0e71a5e106af79",
  "cofactor": "0x08"
}