mleku/libsecp256k1
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

group: Further simply gej_add_ge

Browse Source
This commit is contained in:
Tim Ruffing
2022-02-04 15:24:33 +01:00
parent ac71020ebe
commit e089eecc1e
2 changed files with 27 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
sage/prove_group_implementations.sage
View File

@@ -195,12 +195,6 @@ def formula_secp256k1_gej_add_ge(branch, a, b):
n = m
t = rr_alt^2
rz = a.Z * m_alt
infinity = False
if (branch & 4) != 0:
infinity = True
zeroes.update({rz : 'r.z = 0'})
else:
nonzeroes.update({rz : 'r.z != 0'})
t = t + q
rx = t
t = t * 2
@@ -213,8 +207,11 @@ def formula_secp256k1_gej_add_ge(branch, a, b):
rx = b.X
ry = b.Y
rz = 1
if infinity:
if (branch & 4) != 0:
zeroes.update({rz : 'r.z = 0'})
return (constraints(zero={b.Z - 1 : 'b.z=1', b.Infinity : 'b_finite'}), constraints(zero=zeroes, nonzero=nonzeroes), point_at_infinity())
else:
nonzeroes.update({rz : 'r.z != 0'})
return (constraints(zero={b.Z - 1 : 'b.z=1', b.Infinity : 'b_finite'}), constraints(zero=zeroes, nonzero=nonzeroes), jacobianpoint(rx, ry, rz))
def formula_secp256k1_gej_add_ge_old(branch, a, b):