| 69 | self.block_size = self._hmac.block_size |
| 70 | |
| 71 | def _init_old(self, key, msg, digestmod): |
| 72 | if callable(digestmod): |
| 73 | digest_cons = digestmod |
| 74 | elif isinstance(digestmod, str): |
| 75 | digest_cons = lambda d=b'': _hashlib.new(digestmod, d) |
| 76 | else: |
| 77 | digest_cons = lambda d=b'': digestmod.new(d) |
| 78 | |
| 79 | self._hmac = None |
| 80 | self._outer = digest_cons() |
| 81 | self._inner = digest_cons() |
| 82 | self.digest_size = self._inner.digest_size |
| 83 | |
| 84 | if hasattr(self._inner, 'block_size'): |
| 85 | blocksize = self._inner.block_size |
| 86 | if blocksize < 16: |
| 87 | _warnings.warn('block_size of %d seems too small; using our ' |
| 88 | 'default of %d.' % (blocksize, self.blocksize), |
| 89 | RuntimeWarning, 2) |
| 90 | blocksize = self.blocksize |
| 91 | else: |
| 92 | _warnings.warn('No block_size attribute on given digest object; ' |
| 93 | 'Assuming %d.' % (self.blocksize), |
| 94 | RuntimeWarning, 2) |
| 95 | blocksize = self.blocksize |
| 96 | |
| 97 | if len(key) > blocksize: |
| 98 | key = digest_cons(key).digest() |
| 99 | |
| 100 | # self.blocksize is the default blocksize. self.block_size is |
| 101 | # effective block size as well as the public API attribute. |
| 102 | self.block_size = blocksize |
| 103 | |
| 104 | key = key.ljust(blocksize, b'\0') |
| 105 | self._outer.update(key.translate(trans_5C)) |
| 106 | self._inner.update(key.translate(trans_36)) |
| 107 | if msg is not None: |
| 108 | self.update(msg) |
| 109 | |
| 110 | @property |
| 111 | def name(self): |