mirror of
https://github.com/hakril/PythonForWindows
synced 2026-06-08 14:31:45 +00:00
clement rouault
34 lines
1.6 KiB
Python
34 lines
1.6 KiB
Python
from windows import winproxy
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import windows.generated_def as gdef
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__all__ = ["protect", "unprotect"]
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def protect(data, entropy=None, flags=gdef.CRYPTPROTECT_UI_FORBIDDEN):
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in_blob = gdef.DATA_BLOB.from_string(data)
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out_blob = gdef.DATA_BLOB()
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if entropy is not None:
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entropy = gdef.DATA_BLOB.from_string(entropy)
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winproxy.CryptProtectData(in_blob, pOptionalEntropy=entropy, dwFlags=flags, pDataOut=out_blob)
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encrypted_data = bytes(out_blob.data)
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# https://docs.microsoft.com/en-us/windows/win32/api/dpapi/nf-dpapi-cryptprotectdata
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# pDataOut: A pointer to a DATA_BLOB structure that receives the encrypted data.
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# When you have finished using the DATA_BLOB structure, free its pbData member by calling the LocalFree function.
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winproxy.LocalFree(out_blob.pbData)
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del out_blob
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return encrypted_data
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def unprotect(data, entropy=None, flags=gdef.CRYPTPROTECT_UI_FORBIDDEN):
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in_blob = gdef.DATA_BLOB.from_string(data)
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out_blob = gdef.DATA_BLOB()
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if entropy is not None:
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entropy = gdef.DATA_BLOB.from_string(entropy)
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winproxy.CryptUnprotectData(in_blob, pOptionalEntropy=entropy, dwFlags=flags, pDataOut=out_blob)
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decrypted_data = bytes(out_blob.data)
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# https://docs.microsoft.com/en-us/windows/win32/api/dpapi/nf-dpapi-cryptprotectdata
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# pDataOut: A pointer to a DATA_BLOB structure that receives the encrypted data.
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# When you have finished using the DATA_BLOB structure, free its pbData member by calling the LocalFree function.
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winproxy.LocalFree(out_blob.pbData)
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del out_blob
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return decrypted_data |