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ansit163r2

163-bit binary field Weierstrass curve.
Also known as: sect163r2B-163
y2+xyx3+ax2+by^2 + xy \equiv x^3 + ax^2 + b

Parameters

NameValue
m163
f(u)u^163 + u^7 + u^6 + u^3 + 1
a0x000000000000000000000000000000000000000001
b0x020a601907b8c953ca1481eb10512f78744a3205fd
G(0x03f0eba16286a2d57ea0991168d4994637e8343e36, 0x00d51fbc6c71a0094fa2cdd545b11c5c0c797324f1)
n0x040000000000000000000292fe77e70c12a4234c33
h0x2

Sources

  • ANSI X9.63

Characteristics


SAGE

F.<x> = GF(2)[]
K = GF(2^163, name="x", modulus=u^163 + u^7 + u^6 + u^3 + 1)
E = EllipticCurve(K, (1, K.from_integer(0x000000000000000000000000000000000000000001), 0, 0, K.from_integer(0x020a601907b8c953ca1481eb10512f78744a3205fd)))
E.set_order(0x040000000000000000000292fe77e70c12a4234c33 * 0x2)
G = E(K.from_integer(0x03f0eba16286a2d57ea0991168d4994637e8343e36), K.from_integer(0x00d51fbc6c71a0094fa2cdd545b11c5c0c797324f1))


JSON

{
"name": "ansit163r2",
"desc": "",
"oid": "1.3.132.0.15",
"sources": [
{
"name": "ANSI X9.63",
"url": "https://webstore.ansi.org/standards/ascx9/ansix9632011r2017"
}
],
"form": "Weierstrass",
"field": {
"type": "Binary",
"poly": [
{
"power": 163,
"coeff": "0x01"
},
{
"power": 7,
"coeff": "0x01"
},
{
"power": 6,
"coeff": "0x01"
},
{
"power": 3,
"coeff": "0x01"
},
{
"power": 0,
"coeff": "0x01"
}
],
"bits": 163,
"degree": 163,
"basis": "poly"
},
"params": {
"a": {
"raw": "0x000000000000000000000000000000000000000001"
},
"b": {
"raw": "0x020a601907b8c953ca1481eb10512f78744a3205fd"
}
},
"generator": {
"x": {
"raw": "0x03f0eba16286a2d57ea0991168d4994637e8343e36"
},
"y": {
"raw": "0x00d51fbc6c71a0094fa2cdd545b11c5c0c797324f1"
}
},
"order": "0x040000000000000000000292fe77e70c12a4234c33",
"cofactor": "0x2",
"aliases": [
"secg/sect163r2",
"nist/B-163"
]
}

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