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Add test vectors for map_to_simple_swu. 

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
This commit is contained in:
Daira Hopwood 2021-04-27 14:24:13 +01:00
parent 6a4f42ce25
commit f0f7068552
1 changed files with 15 additions and 6 deletions
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21
hashtocurve.sage
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@ -164,6 +164,9 @@ class ChudnovskyPoint:
def to_sage(self, E):
return E((self.x / self.z2, self.y / self.z3))
def to_affine(self, E):
return self.to_sage(E).xy()
def to_jacobian(self):
return (self.x, self.y, self.z)
@ -503,14 +506,20 @@ def hash_to_vesta_jacobian(msg, DST):
print("")
print(map_to_curve_simple_swu(F_p, IsoEp, IsoEpZ, Mod(0, p), Cost()))
print("")
print(map_to_curve_simple_swu(F_p, IsoEp, IsoEpZ, Mod(1, p), Cost()))
P0 = map_to_curve_simple_swu(F_p, IsoEp, IsoEpZ, Mod(0, p), Cost())
print("Fp: map_to_curve_simple_swu(0) = %r" % (P0.to_affine(IsoEp),))
P1 = map_to_curve_simple_swu(F_p, IsoEp, IsoEpZ, Mod(1, p), Cost())
print("Fp: map_to_curve_simple_swu(1) = %r" % (P1.to_affine(IsoEp),))
Pa = map_to_curve_simple_swu(F_p, IsoEp, IsoEpZ, Mod(0x123456789abcdef123456789abcdef123456789abcdef123456789abcdef0123, p), Cost())
print("Fp: map_to_curve_simple_swu(0x123456789abcdef123456789abcdef123456789abcdef123456789abcdef0123) = %r" % (Pa.to_affine(IsoEp),))
print("")
print(map_to_curve_simple_swu(F_q, IsoEq, IsoEqZ, Mod(0, q), Cost()))
print("")
print(map_to_curve_simple_swu(F_q, IsoEq, IsoEqZ, Mod(1, q), Cost()))
Q0 = map_to_curve_simple_swu(F_q, IsoEq, IsoEqZ, Mod(0, q), Cost())
print("Fq: map_to_curve_simple_swu(0) = %r" % (Q0.to_affine(IsoEq),))
Q1 = map_to_curve_simple_swu(F_q, IsoEq, IsoEqZ, Mod(1, q), Cost())
print("Fq: map_to_curve_simple_swu(1) = %r" % (Q1.to_affine(IsoEq),))
Qa = map_to_curve_simple_swu(F_q, IsoEq, IsoEqZ, Mod(0x123456789abcdef123456789abcdef123456789abcdef123456789abcdef0123, q), Cost())
print("Fq: map_to_curve_simple_swu(0x123456789abcdef123456789abcdef123456789abcdef123456789abcdef0123) = %r" % (Qa.to_affine(IsoEq),))
print("")
xyz = isop_map_jacobian(