def decode_blob(blob):
header = blob[:HEADER_WIDTH]
body = blob[HEADER_WIDTH:]
scheme = _unpack_header(header)
decryption_oracle = get_decryption_oracle('BLOCK_ENCRYPTION_KEY')
compressed_plaintext = decryption_oracle.decrypt(body, scheme)
result = zlib.decompress(compressed_plaintext)
return result
def decode_blob(blob):
header = blob[:HEADER_WIDTH]
body = blob[HEADER_WIDTH:]
scheme = _unpack_header(header)
decryption_oracle = get_decryption_oracle('BLOCK_ENCRYPTION_KEY')
compressed_plaintext = decryption_oracle.decrypt(body, scheme)
result = zlib.decompress(compressed_plaintext)
return result
def secret(self):
with get_decryption_oracle('SECRET_ENCRYPTION_KEY') as d_oracle:
return d_oracle.decrypt(
self._secret,
encryption_scheme=self.encryption_scheme)
def secret(self):
# type: () -> bytes
with get_decryption_oracle("SECRET_ENCRYPTION_KEY") as d_oracle:
return d_oracle.decrypt(
self._secret, encryption_scheme=self.encryption_scheme
)
