* early days

* sort of working

* more things

* remove private_bytes

* public bytes, interface fix

* load public keys

* x25519 support basically done now

* private_bytes is gone

* some reminders

* doctest this too

* remove a thing that doesn't matter

* x25519 supported checks

* libressl has the NID, but a different API, so check for OpenSSL

* pep8

* add missing coverage

* update to use reasons

* expand test a little

* add changelog entry

* review feedback

* chacha20poly1305 support

* add chacha20poly1305 backend and some fixes

* refactor

* forgot to remove this

* pep8

* review feedback and a lot of type/value checking

* review feedback

* raise unsupportedalgorithm when creating a ChaCha20Poly1305 object

if it's not supported.

* switch to ciphertext||tag

* typo

* remove a branch we don't need

* review feedback

* decrypts is *also* a word

* use reasons

* bind even more evp

* oops

* Stub API for SCTs, feedback wanted

* grr, flake8

* finish up the __init__

* Initial implementation and tests

* write a test. it fails because computer

* get the tests passing and fix some TODOs

* changelog entry

* This can go now

* Put a skip in this test

* grump

* Removed unreachable code

* moved changelog to the correct section

* Use the deocrator for expressing requirements

* This needs f for the right entry_type

* coverage

* syntax error

* tests for coverage

* better sct eq tests

* docs

* technically correct, the most useless kind of correct

* typo and more details

* bug

* drop __eq__

* deprecate signer/verifier on asymmetric keys

* review feedback, switch deprecated_call to work around a bug

* make signature and verification contexts error better re: prehashed

* code review feedback