the underlying encryption/decryption primitive.
For example AES in CTR mode has a block size of 1 (because it operates like a
stream cipher), even though AES has a block size of 16.
-Use EVP_CIPHER_get_block_size() to retreive the cached value.
+Use EVP_CIPHER_get_block_size() to retrieve the cached value.
=item "aead" (B<OSSL_CIPHER_PARAM_AEAD>) <integer>