2022-06-08 21:25:46 +02:00
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import importlib
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PROVIDER_NONE = 0x00
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2022-06-08 17:03:40 +02:00
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PROVIDER_INTERNAL = 0x01
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PROVIDER_PYCA = 0x02
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2022-06-08 21:25:46 +02:00
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PROVIDER = PROVIDER_NONE
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pyca_v = None
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use_pyca = False
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try:
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if importlib.util.find_spec('cryptography') != None:
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import cryptography
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pyca_v = cryptography.__version__
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v = pyca_v.split(".")
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if int(v[0]) == 2:
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if int(v[1]) >= 8:
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use_pyca = True
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elif int(v[0]) >= 3:
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use_pyca = True
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except Exception as e:
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pass
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if use_pyca:
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PROVIDER = PROVIDER_PYCA
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else:
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PROVIDER = PROVIDER_INTERNAL
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def backend():
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if PROVIDER == PROVIDER_NONE:
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return "none"
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elif PROVIDER == PROVIDER_INTERNAL:
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return "internal"
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elif PROVIDER == PROVIDER_PYCA:
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return "openssl, PyCA "+str(pyca_v)
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