54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
from py_ecc.bls import G2ProofOfPossession as bls
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from py_ecc.bls.g2_primatives import signature_to_G2 as _signature_to_G2
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# Flag to make BLS active or not. Used for testing, do not ignore BLS in production unless you know what you are doing.
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bls_active = True
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STUB_SIGNATURE = b'\x11' * 96
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STUB_PUBKEY = b'\x22' * 48
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STUB_COORDINATES = _signature_to_G2(bls.Sign(0, b""))
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def only_with_bls(alt_return=None):
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"""
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Decorator factory to make a function only run when BLS is active. Otherwise return the default.
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"""
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def runner(fn):
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def entry(*args, **kw):
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if bls_active:
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return fn(*args, **kw)
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else:
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return alt_return
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return entry
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return runner
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@only_with_bls(alt_return=True)
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def Verify(PK, message, signature):
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return bls.Verify(PK, message, signature)
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@only_with_bls(alt_return=True)
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def AggregateVerify(pairs, signature):
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return bls.AggregateVerify(pairs, signature)
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@only_with_bls(alt_return=True)
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def FastAggregateVerify(PKs, message, signature):
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return bls.FastAggregateVerify(PKs, message, signature)
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@only_with_bls(alt_return=STUB_SIGNATURE)
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def Aggregate(signatures):
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return bls.Aggregate(signatures)
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@only_with_bls(alt_return=STUB_SIGNATURE)
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def Sign(SK, message):
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return bls.Sign(SK, message)
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@only_with_bls(alt_return=STUB_COORDINATES)
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def signature_to_G2(signature):
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return _signature_to_G2(signature)
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