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Fix length of layer prefix in orchard_merkle_tree.py. 

Signed-off-by: Daira Hopwood <daira@jacaranda.org>
This commit is contained in:
Daira Hopwood 2021-05-06 16:11:25 +01:00
parent c73aabd641
commit 5a820ad113
1 changed files with 2 additions and 2 deletions
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4
orchard_merkle_tree.py
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@ -17,7 +17,7 @@ def merkle_crh(layer, left, right):
assert layer < MERKLE_DEPTH assert layer < MERKLE_DEPTH
assert len(left) == L_MERKLE assert len(left) == L_MERKLE
assert len(right) == L_MERKLE assert len(right) == L_MERKLE
l = i2lebsp(6, MERKLE_DEPTH - 1 - layer) l = i2lebsp(10, MERKLE_DEPTH - 1 - layer)
return sinsemilla_hash(b"z.cash:Orchard-MerkleCRH", l + left + right) return sinsemilla_hash(b"z.cash:Orchard-MerkleCRH", l + left + right)
left = unhexlify("87a086ae7d2252d58729b30263fb7b66308bf94ef59a76c9c86e7ea016536505")[::-1] left = unhexlify("87a086ae7d2252d58729b30263fb7b66308bf94ef59a76c9c86e7ea016536505")[::-1]
@ -27,6 +27,6 @@ left = leos2bsp(left)[:L_MERKLE]
right = leos2bsp(right)[:L_MERKLE] right = leos2bsp(right)[:L_MERKLE]
# parent = merkle_crh(MERKLE_DEPTH - 1 - 25, left, right) # parent = merkle_crh(MERKLE_DEPTH - 1 - 25, left, right)
parent = Fp(17261766847362299889572407272882432634088514578301422827180452043349931590033) parent = Fp(626278560043615083774572461435172561667439770708282630516615972307985967801)
assert merkle_crh(MERKLE_DEPTH - 1 - 25, left, right) == parent assert merkle_crh(MERKLE_DEPTH - 1 - 25, left, right) == parent
assert merkle_crh(MERKLE_DEPTH - 1 - 26, left, right) != parent assert merkle_crh(MERKLE_DEPTH - 1 - 26, left, right) != parent