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BIP324: Fix features bitmask for decoding-case selection

This commit is contained in:
phrwlk 2025-09-16 12:52:35 +03:00 committed by Tim Ruffing
parent 964ce2d371
commit d51f2dcaeb

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@ -95,13 +95,13 @@ def ellswift_create_deterministic(seed, features):
have_x1 = "valid_x(x1)" in flags
have_x2 = "valid_x(x2)" in flags
have_x3 = "valid_x(x3)" in flags
if (features & 4) == 0 and not (have_x1 and not have_x2 and not have_x3):
if (features & 3) == 0 and not (have_x1 and not have_x2 and not have_x3):
continue
if (features & 4) == 1 and not (not have_x1 and have_x2 and not have_x3):
if (features & 3) == 1 and not (not have_x1 and have_x2 and not have_x3):
continue
if (features & 4) == 2 and not (not have_x1 and not have_x2 and have_x3):
if (features & 3) == 2 and not (not have_x1 and not have_x2 and have_x3):
continue
if (features & 4) == 3 and not (have_x1 and have_x2 and have_x3):
if (features & 3) == 3 and not (have_x1 and have_x2 and have_x3):
continue
return sec, u.to_bytes(32, 'big') + t.to_bytes()