Crypto: add some docs for AES CCM #2590
Merged
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This adds some docs for AES CCM authenticated encryption and decryption.
Turns out I misread the mbedtls docs when adding initial AES CCM support, so this also corrects the existing parameter descriptions.
(For example the iv can be 7 to 13 bytes, while I previously wrote 2 to 13 bytes; passing an iv of less than 7 bytes just errors out though.)