| Exceptions | |
| ========== | |
| .. currentmodule:: cryptography.exceptions | |
| .. class:: AlreadyFinalized | |
| This is raised when a context is used after being finalized. | |
| .. class:: NotFinalized | |
| This is raised when the AEAD tag property is accessed on a context | |
| before it is finalized. | |
| .. class:: UnsupportedAlgorithm | |
| This is raised when a backend doesn't support the requested algorithm (or | |
| combination of algorithms). |