Support for in-place re-encryption, encryption, decryption #2422

Job	Run time
check-typos	36s
test-runs (3.13)	12m 26s
test-runs (3.12)	12m 16s
python-checks (black python3-isort, PATH=${PATH}:/github/home/.local/bin PYTHONPATH=./src make -f...	25s
python-checks (bandit libatomic pylint python3-dateutil python3-dbus-client-gen python3-dbus-pyth...	44s
coverage-runs	21m 11s
	47m 38s

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