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: /lib/python3/dist-packages/pymacaroons/binders/ [ drwxr-xr-x ]
name : hash_signatures_binder.py import binascii from pymacaroons.binders.base_binder import BaseBinder from pymacaroons.utils import hmac_concat, truncate_or_pad class HashSignaturesBinder(BaseBinder): def __init__(self, root, key=None): super(HashSignaturesBinder, self).__init__(root) self.key = key or truncate_or_pad(b'\0') def bind_signature(self, signature): return hmac_concat( self.key, binascii.unhexlify(self.root.signature_bytes), binascii.unhexlify(signature) )