(self, enc_alg, ek, headers, key)
| 291 | return rv |
| 292 | |
| 293 | def unwrap(self, enc_alg, ek, headers, key): |
| 294 | if "epk" not in headers: |
| 295 | raise ValueError('Missing "epk" in headers') |
| 296 | |
| 297 | if self.key_size is None: |
| 298 | bit_size = enc_alg.CEK_SIZE |
| 299 | else: |
| 300 | bit_size = self.key_size |
| 301 | |
| 302 | epk = key.import_key(headers["epk"]) |
| 303 | public_key = epk.get_op_key("wrapKey") |
| 304 | dk = self.deliver(key, public_key, headers, bit_size) |
| 305 | |
| 306 | if self.key_size is None: |
| 307 | return dk |
| 308 | |
| 309 | kek = self.aeskw.prepare_key(dk) |
| 310 | return self.aeskw.unwrap(enc_alg, ek, headers, kek) |
| 311 | |
| 312 | |
| 313 | def u32be_len_input(s, base64=False): |
nothing calls this directly
no test coverage detected