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ansit163r1

163-bit binary field Weierstrass curve.
Also known as: sect163r1
y2+xyx3+ax2+by^2 + xy \equiv x^3 + ax^2 + b

Parameters

NameValue
m163
f(x) x^163 + x^7 + x^6 + x^3 + 1
a0x07b6882caaefa84f9554ff8428bd88e246d2782ae2
b0x0713612dcddcb40aab946bda29ca91f73af958afd9
G(0x0369979697ab43897789566789567f787a7876a654, 0x00435edb42efafb2989d51fefce3c80988f41ff883)
n0x03ffffffffffffffffffff48aab689c29ca710279b
h0x2

Characteristics

  • OID:
    1.3.132.0.2

SAGE

F.<x> = GF(2)[]
K = GF(2^163, name="x", modulus= x^163 + x^7 + x^6 + x^3 + 1)
E = EllipticCurve(K, (1, K.fetch_int(0x07b6882caaefa84f9554ff8428bd88e246d2782ae2), 0, 0, K.fetch_int(0x0713612dcddcb40aab946bda29ca91f73af958afd9)))
E.set_order(0x03ffffffffffffffffffff48aab689c29ca710279b * 0x2)
G = E(K.fetch_int(0x0369979697ab43897789566789567f787a7876a654), K.fetch_int(0x00435edb42efafb2989d51fefce3c80988f41ff883))


JSON

{
"name": "ansit163r1",
"desc": "",
"oid": "1.3.132.0.2",
"form": "Weierstrass",
"field": {
"type": "Binary",
"bits": 163,
"degree": 163,
"poly": [
{
"coeff": "0x01",
"power": 163
},
{
"coeff": "0x01",
"power": 7
},
{
"coeff": "0x01",
"power": 6
},
{
"coeff": "0x01",
"power": 3
},
{
"coeff": "0x01",
"power": 0
}
],
"basis": "poly"
},
"params": {
"a": {
"raw": "0x07b6882caaefa84f9554ff8428bd88e246d2782ae2"
},
"b": {
"raw": "0x0713612dcddcb40aab946bda29ca91f73af958afd9"
}
},
"generator": {
"x": {
"raw": "0x0369979697ab43897789566789567f787a7876a654"
},
"y": {
"raw": "0x00435edb42efafb2989d51fefce3c80988f41ff883"
}
},
"order": "0x03ffffffffffffffffffff48aab689c29ca710279b",
"cofactor": "0x2",
"aliases": [
"secg/sect163r1"
]
}

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